UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

(Mark One)

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2024

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to 

Commission File Number: 001-40877

CERO THERAPEUTICS HOLDINGS, INC.

(Exact name of registrant as specified in its charter)

(650) 407-2376
(Registrant’s telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. YES ☐ NO ☒

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. YES ☐ NO ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

As of June 30, 2024, the last business day of the registrant’s most recently completed second fiscal quarter, the aggregate market value of the registrant’s voting securities held by non-affiliates was approximately $5,765,325 based on the number of shares held by non-affiliates and the last reported sales price of the registrant’s Class A common stock as of that date.

As of April 11, 2025, the registrant had 5,380,723 shares of common stock, par value $0.0001 per share, outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Table of Contents

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K (this “Annual Report”) contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). All statements other than statements of historical facts contained in this Annual Report, including statements regarding our future results of operations and financial position, business strategy, drug candidates, planned preclinical studies and clinical trials, results of preclinical studies, clinical trials, research and development (“R&D”) costs, regulatory approvals, timing and likelihood of success, as well as plans and objectives of management for future operations, are forward-looking statements. These statements involve known and unknown risks, uncertainties and other important factors that are in some cases beyond our control and may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements.

In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “would,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “believe,” “estimate,” “predict,” “potential,” or “continue” or the negative of these terms or other similar expressions. Forward-looking statements contained in this Annual Report include, but are not limited to, statements about:

We have based these forward-looking statements largely on our current expectations and projections about our business, the industry in which we operate and financial trends that we believe may affect our business, financial condition, results of operations and prospects, and these forward-looking statements are not guarantees of future performance or development. These forward-looking statements speak only as of the date of this Annual Report and are subject to a number of risks, uncertainties and assumptions described in “Risk Factors” and elsewhere in this Annual Report. Because forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified, you should not rely on these forward-looking statements as predictions of future events. The events and circumstances reflected in our forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. Except as required by applicable law, we do not plan to publicly update or revise any forward-looking statements contained herein until after we distribute this Annual Report, whether as a result of any new information, future events or otherwise.

In addition, statements that “we believe” and similar statements reflect our beliefs and opinions on the relevant subject. These statements are based upon information available to us as of the date of this Annual Report, and while we believe such information forms a reasonable basis for such statements, such information may be limited or incomplete, and our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all potentially available relevant information. These statements are inherently uncertain, and you are cautioned not to unduly rely upon these statements.

This Annual Report includes trademarks, tradenames and service marks that are the property of other organizations. Solely for convenience, trademarks and tradenames referred to in this Annual Report appear without the ® and ™ symbols, but those references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights, or that the applicable owner will not assert its rights, to these trademarks and tradenames.

Unless the context otherwise requires, all references herein to “we,” “us,” “our” or “the Company” refer to the business and operations of CERo Therapeutics Holdings, Inc. (“CERo”) and its subsidiaries.

SELECTED DEFINITIONS

As used in this Annual Report, unless otherwise noted or the context otherwise requires, references to the following capitalized terms have the meanings set forth below:

“Arena” refers to Arena Business Solutions Global SPC II, Ltd. on behalf of and for the account of Segregated Portfolio #13 – SPC #13.

“Arena Commitment Shares” refer to up to 10,000 shares of Common Stock issued to Arena as consideration for executing and delivering the Arena Purchase Agreement.

“Arena Purchase Agreement” refers to the Purchase Agreement, dated as of February 23, 2024, by and between CERo and Arena.

“Board” refers to the board of directors of CERo.

“Business Combination” or “Merger” refers to the transactions contemplated by the Business Combination Agreement, including the merger between Merger Sub and Legacy CERo.

“Business Combination Agreement” refers to the Business Combination Agreement, dated as of June 4, 2023, as amended by Amendment No. 1, dated February 5, 2024 and Amendment No. 2, dated February 13, 2024, by and between PBAX, Merger Sub and Legacy CERo.

“Bylaws” refers to the Amended and Restated Bylaws of CERo.

“Charter” refers to CERo’s Second Amended and Restated Certificate of Incorporation, as filed with the Secretary of the State of Delaware February 14, 2024.

“Class A Common Stock” refers to the CERo Class A common stock, par value $0.0001 per share.

“Closing” refers to the closing of the Business Combination.

“Common Stock” refers to the Class A common stock, par value $0.0001 per share, of CERo.

“Common Warrants” refers to the Public Warrants, Private Placement Warrants, the Conversion Warrants, the Series A Warrants, the Series C Warrants, the December 2024 Common Warrants, the January 2025 Common Warrants, the February 2025 Common Warrants and the Pre-Funded Warrants.

“Conversion Warrants” refer to the warrants initially issued by CERo Therapeutics, Inc. and converted into warrants to purchase Common Stock in connection with the Business Combination.

“December 2024 Common Warrants” refer to the warrants to purchase shares of Common Stock, at a current exercise price of $5.61 per share, issued by the Company in a private placement on December 23, 2024.

“DGCL” refers to the Delaware General Corporation Law, as may be amended from time to time.

“Earnout Shares” refer to the Primary Earnout Shares, the Secondary Earnout Shares and the Tertiary Earnout Shares, collectively.

“February 2025 Common Warrants” refer to the warrants to purchase shares of Common Stock, at a current exercise price of $1.96 per share, issued by the Company in a public offering on February 7, 2025.

“First PIPE Financing” refers to the private placement pursuant to which we issued and sold, and the PIPE Investors purchased, shares of Series A Preferred Stock, the Series A Warrants and Preferred Warrants, on the terms and conditions set forth in the First Securities Purchase Agreement.

“First PIPE Registration Rights Agreement” refers to the Registration Rights Agreement, dated as of February 14, 2024, by and between CERo and certain PIPE Investors.

“First Securities Purchase Agreement” refers to the Amended and Restated Securities Purchase Agreement, dated as of February 14, 2024, by and among PBAX, Legacy CERo and certain PIPE Investors, pursuant to which CERo agreed to issue and sell 10,039 shares of Series A Preferred Stock, 6,127 Series A Warrants and 2,500 Preferred Warrants.

“Initial Public Offering” refers to the initial public offering of PBAX, which closed on October 8, 2021.

“January 2025 Common Warrants” refer to the warrants to purchase shares of Common Stock, at a current exercise price of $5.82 per share, issued by the Company in a private placement on January 6, 2025.

“Keystone” refers to Keystone Capital Partners, LLC.

“Keystone Commencement Date” refers to the time when all of the conditions to our right to commence sales of Common Stock to Keystone set forth in the respective Keystone Purchase Agreements have been satisfied.

“Keystone Commitment Shares” refers to the 19,833 shares of Common Stock that have been issued to Keystone as consideration for Keystone entering into the Keystone Purchase Agreements.

“Keystone Purchase Agreements” refers to the Old Keystone Purchase Agreement and the New Keystone Purchase Agreement.

“Keystone Purchase Shares” refers to the shares of Common Stock that CERo may elect to issue and sell to Keystone after the Keystone Commencement Date.

“Legacy CERo” refers to CERo Therapeutics, Inc.

“Legacy CERo common stock” refers to the common stock, par value $0.0001 per share, of Legacy CERo.

“Legacy CERo preferred stock” refers to the preferred stock, par value $0.0001 per share, of Legacy CERo.

“Legacy CERo options” refers to the options to purchase shares of Legacy CERo common stock.

“Legacy CERo Stockholders” refers to the holders of Legacy CERo common stock and/or Legacy CERo preferred stock prior to the Business Combination.

“Legacy CERo warrants” refers to the warrants to purchase shares of Legacy CERo preferred stock.

“Merger Sub” refers to PBCE Merger Sub, Inc., a Delaware corporation.

“New Keystone Purchase Agreement” refers to the Common Stock Purchase Agreement, dated as of November 8, 2024, by and between CERo and Keystone.

“Old Keystone Purchase Agreement” refers to the Common Stock Purchase Agreement, dated as of February 14, 2024, by and between PBAX and Keystone.

“PIPE Financings” refers to the First PIPE Financing, the Second PIPE Financing and the Third PIPE Financing.

“PIPE Investors” refer to the investors in the PIPE Financings.

“PIPE Registration Rights Agreement” refers to the First PIPE Registration Rights Agreement, the Second PIPE Registration Rights Agreement and the Third PIPE Registration Rights Agreement.

“Pre-Funded Warrants” refer to the warrants to purchase shares of Common Stock, at an exercise price of $0.0001 per Share, issued in a public offering on February 7, 2025.

“Preferred Stock” refers to the shares of Series A, Series B, and Series C Preferred Stock, par value $0.0001 per share, of CERo.

“Preferred Shares” refer to the shares of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock issued in the PIPE Financings, including the Warrant Preferred Shares.

“Preferred Warrants” refer to warrants to purchase shares of Series A Preferred Stock.

“Primary Earnout Shares” refer to the 12,000 shares of Common Stock issued to the holders of Legacy CERo common stock and Legacy CERo preferred stock in connection with the Business Combination, 10,000 of which are subject to vesting upon the achievement of certain stock price-based earnout targets and 2,000 of which are subject to vesting upon a change of control, respectively.

“Private Placement Warrants” refer to private placement warrants to purchase shares of Common Stock, at an exercise price of $1,150.00 per share, that were originally sold in a private placement concurrently with the Initial Public Offering.

“Public Warrants” refer to the warrants to purchase shares of Common Stock, at an exercise price of $1,150.00 per share, that were originally issued in the Initial Public Offering.

“Reverse Stock Split” refers to the Company’s reverse stock split that became effective at 12:01 a.m. Eastern time on January 8, 2025, pursuant to which each 100 shares of Common Stock outstanding immediately prior thereto was converted into 1 share of Common Stock outstanding immediately thereafter.

“Rollover Warrants” refer to warrants to purchase shares of Common Stock, at an exercise price of $1,000.00 per share, that were converted from Legacy CERo warrants in connection with the Business Combination.

“SEC” refers to the U.S. Securities and Exchange Commission.

“Secondary Earnout Shares” refer to the 8,750 shares of Common Stock issued to the holders of Legacy CERo common stock and Legacy CERo preferred stock in connection with the Business Combination, which became fully vested at Closing.

“Second PIPE Financing” refers to the private placement pursuant to which we issued and sold, and the PIPE Investors purchased, shares of Series B Preferred Stock, on the terms and conditions set forth in the Second Securities Purchase Agreement.

“Second PIPE Registration Rights Agreement” refers to the Registration Rights Agreement, dated as of March 29, 2024, by and between CERo and certain PIPE Investors.

“Second Securities Purchase Agreement” refers to the Securities Purchase Agreement, dated as of March 29, 2024, by and among CERo and certain PIPE Investors, pursuant to which CERo agreed to issue and sell 626 shares of Series B Preferred Stock.

“Series A Preferred Stock” refers to the Series A convertible preferred stock, $0.0001 par value per share, of CERo.

“Series A Warrants” refers to warrants to purchase Common Stock, at a current exercise price of $139.00 per share, sold to certain PIPE Investors pursuant to the First Securities Purchase Agreement.

“Series B Preferred Stock” refers to the Series B convertible preferred stock, $0.0001 par value per share, of CERo.

“Series C Preferred Stock” refers to the Series C convertible preferred stock, $0.0001 par value per share, of CERo.

“Series C Warrants” refers to warrants to purchase shares of Common Stock, at a current exercise price of $0.04 per share, sold to certain PIPE Investors pursuant to the Third Securities Purchase Agreement.

“Sponsor” refers to Phoenix Biotech Sponsor, LLC, a Delaware limited liability company.

“Tertiary Earnout Shares” refer to the 10,000 shares of Common Stock issued to the holders of Legacy CERo common stock and Legacy CERo preferred stock in connection with the Business Combination, which became fully vested upon the achievement of certain regulatory milestone-based earnout targets.

“Third PIPE Financing” refers to the private placement pursuant to which we issued and sold, and the PIPE Investors purchased, shares of Series C Preferred Stock, on the terms and conditions set forth in the Third Securities Purchase Agreement.

“Third PIPE Registration Rights Agreement” refers to the Registration Rights Agreement, dated as of September 26, 2024, by and between CERo and certain PIPE Investors.

“Third Securities Purchase Agreement” refers to the Securities Purchase Agreement, dated as of September 25, 2024, by and among CERo and certain PIPE Investors, pursuant to which CERo agreed to issue and sell 2,853 shares of Series C Preferred Stock and the Series C Warrants to purchase 81,753 shares of Common Stock.

“Warrant Preferred Shares” refer to the shares of Preferred Stock underlying the Preferred Warrants.

“Warrants” refer to the Rollover Warrants, the Private Placement Warrants, the Common Warrants, the Preferred Warrants, the Public Warrants, the February 2025 Common Warrants and the Pre-Funded Warrants.

RISK FACTORS SUMMARY

Our business is subject to numerous risks and uncertainties that you should consider before investing in our securities. Some of the principal risk factors are summarized below:

PART I

Item 1. Business.

Overview

We are an innovative immunotherapy company advancing the development of next-generation engineered T cell therapeutics for the treatment of cancer. Our proprietary approach to T cell engineering, which enables us to integrate certain desirable characteristics of both innate and adaptive immunity into a single therapeutic construct, is designed to engage the body’s full immune repertoire to achieve optimized cancer therapy. Our novel cellular immunotherapy platform is designed to redirect patient-derived T cells to eliminate tumors by building in pathways that employ both cytotoxic and phagocytic mechanisms to destroy cancer cells, creating what we refer to as CER-T cells. Our lead molecule is CER-1236, an autologous T-cell product that targets a novel tumor antigen, TIM-4 ligand. Unlike currently approved chimeric antigen receptor (“CAR-T”) therapies which have largely been active in hematological B cell malignancies, we believe CER-1236 will be active in both hematological malignancies and solid tumors.

On November 14, 2024, we received notice from the FDA that the Investigational New Drug Application (“IND”) was cleared after being put on a brief clinical hold due to insufficient nonclinical data to adequately judge off target toxicity. The clinical hold was lifted after additional in vitro experiments were performed. We submitted a second IND application for the investigation of CER-T cell therapy in non-small cell lung cancer (“NSCLC”) and ovarian cancer, which was accepted by the FDA on March 27, 2025.

The ability to enhance the activity of T cells against human cancers through genetic engineering has been among the most significant advances in cancer therapy in the last decade. One of the more promising therapeutic uses of T cells to emerge has been CAR-T cell technology. However promising CAR-T cell therapy has been, its use has been largely limited to the treatment of certain hematological cancers due to lack of specific tumor-associated antigens and CAR-T cells’ limited ability to proliferate, traffic, and circulate in solid tumors. Curative cell therapies for solid tumors currently do not exist, and the significance of this limitation is underscored by the prevalence of solid tumor malignancies. The American Cancer Society estimates that solid tumor cancers accounted for more than 1.7 million of the 1.9 million people newly diagnosed with cancer in 2022. Even in hematological malignancies with approved CAR-T cell therapies, cure rates do not exceed 60%. Nevertheless, despite such limitations, sales of CAR-T cell therapies are anticipated to grow rapidly over the next several years and are expected to exceed $10 billion globally by 2030.

We believe that the preferential attributes engineered into our CER-T cell therapy enables us to overcome many of the limitations which hinder the wider application of CAR-T technology. Our CER-T cells employ a novel targeting mechanism that targets a ligand broadly expressed on tumor cells but not healthy cells. Specifically, CER-1236 targets the TIM-4 Ligand (“TIM-4-L”), otherwise known as phosphatidylserine (“PS”), a critical component of the cell’s plasma membrane that has a key role in cell removal. Exposure of TIM-4-L on the outer surface of the plasma membrane acts as an “eat-me” signal and marks abnormal, stressed and dying or dead cells for phagocytosis. The pro-phagocytic activities of CER-T cells are designed to integrate innate immune effector functions into cytotoxic killer T cells, creating within a single T cell the ability to directly mediate cytotoxic effects and indirectly prime other immune cells. Moreover, in preclinical studies, we have observed that CER-1236 cells exhibit superior cross-presentation abilities compared to conventional T cells, potentially triggering a broad complement of immune effector cells against tumors. Since externally oriented TIM-4-L is broadly expressed by numerous cancer cell types but has very limited exposure on normal healthy cells, we envision CER-1236 as having differentiated therapeutic utility with application across a wide array of cancer types.

We have patterned the design of our CER-T constructs based upon many of the components found in existing conventional CAR-T cell therapies, which we believe could shorten development timelines and enhance commercial application. The processes and protocols used to genetically modify a patient’s T cells to produce CAR-T cells are already well recognized, as is the use of lentivirus in the manufacture of these therapies. Accordingly, we have developed CER-T cell manufacturing processes that closely resemble those used to produce existing engineered CAR-T cells. We also expect to benefit from the well-defined and recognized regulatory guidelines established by both U.S. and European regulatory authorities related to CAR-T therapies and their use. In contrast to these attributes, we believe that other emerging CAR-based drug candidates which involve immune effector cells other than T cells, such as CAR-NK and CAR-M therapies, are unlikely to enjoy similar benefits.

In preclinical studies, we have observed CER-1236 to display attractive functional attributes, among which are:

Based on the preclinical data regarding the use of CER-1236 T cells to combat hematologic malignancies, we anticipate beginning clinical trials in the first half of 2025. We anticipate that our initial targets will be relapsed, remitting acute myeloid leukemia (“AML”) patients as well as AML patients with measurable residual disease (“MRD”) and patients with mutations in TP53, a gene mutation associated with aggressive AML. AML is a heterogenous and aggressive hematopoietic malignancy characterized by the rapid buildup of immature myeloid cells in the bone marrow and blood. This process results in the inhibition of normal hematopoiesis, manifesting as neutropenia, anemia, thrombocytopenia, and the clinical features of bone marrow failure. According to the American Cancer Society, AML accounts for 90% of all acute leukemias in adults, with an estimated 22,010 new cases and 11,090 deaths expected in the United States in 2025. The current treatment has remained largely unchanged over several decades with combination chemotherapy with cytarabine for 7 days and an anthracycline for 3 days (“7+3”). Newer, targeted approaches that include multi-kinase domain inhibitors and antibody-drug conjugates are now available during induction chemotherapy for certain patients. For patients that are sufficiently healthy and at unfavorable risk, allogeneic Hematopoietic Stem Cell Transplants (“HSCTs”) are commonly performed. Despite these interventions, there is significant unmet medical need for novel therapies, including cell therapeutic approaches. Given the incidence of AML, CER-1236 T cell therapy may qualify for an Orphan Drug Designation by the FDA, and we have submitted an application to the FDA for an Orphan Drug Designation on March 18, 2025.

Our Phase 1 AML clinical trial is intended to evaluate the safety, potential therapeutic utility and applicable dose of CER-1236. The approved starting dose for the clinical trial is sufficiently high that we expect to begin to see clinical activity by the second dose level cohort. Concurrent with a trial in these hematological malignancies, we intend to expand the clinical development of CER-1236 with an additional IND submission, which has been approved, to investigate solid tumors such as NSCLC and ovarian cancer. We believe that CER-1236 has the potential to address unmet medical needs in the targeted indications, and be differentiated from currently available therapeutics by its safety, tolerability and efficacy. Since no clinical trials of CER-1236 have commenced, none of the abovementioned statements regarding any of our products in development are intended to be a prediction or conclusion of efficacy.

Our Strategy

Our intent is to become a leading biopharmaceutical company focused on the capital-efficient advancement of innovative anti-cancer product candidates targeting the unmet medical need associated with aggressive and difficult-to-treat hematological malignancies and solid tumors. To accomplish this objective, the key elements of our strategy include:

The Immune System and its Function

The immune system is a host defense system comprising multiple structures and processes within an organism that protects against disease. As with other mammalian species, the human immune system is segregated into two separate yet interconnected components, the innate immune system and the adaptive immune system. The innate immune system is responsible for an immediate, non-specific response to infected or diseased cells. Triggering its activation are pathogen-associated and damage-associated molecular patterns recognized by preconfigured pattern recognition receptors which reside on the surface of various types of leukocytes, or white blood cells, that make up the innate immune system, including macrophages, dendritic cells, eosinophils and natural killer (“NK”) cells. In addition to its direct participation in eliminating damaged or diseased cells, certain components of the innate immune system function significantly as antigen-presenting cells (“APCs”) promoting the activity of the adaptive immune system.

The adaptive immune system is composed of special types of leukocytes known as T and B lymphocytes, also known as T and B cells, respectively. T cells participate primarily in the cell-mediated immune response while B cells are involved in the humoral immune response. T cells are an essential component of the adaptive immune system, targeting specific antigens and either destroying targeted cells directly or participating in their destruction by activating other immune cells. T cells use T cell specific receptors to recognize antigens presented via major histocompatibility complex (“MHC”) molecules on APCs. Through this mechanism, T cells have the ability to target tumor-transformed or virus infected cells, as well as help coordinate the activity of other immune cells.

T cells are differentiated by the expression of protein markers on their surface. The two most prominent types of T cells are those that express CD8 molecules and are known as CD8 T cells, and those that express CD4 molecules and are known as CD4 T cells. CD8 T cells, also referred to as cytotoxic lymphocytes (“CTLs”), eliminate cells which they encounter that are recognized as being infected with viruses or other pathogens or are otherwise damaged or dysfunctional through a process referred to as cell lysis, which involves the release by these killer T cells of perforins and granzymes to compromise the integrity of the target cell’s membrane. Endogenous pathogens are broken down by mechanisms present in virtually all cells into smaller fragments and presented to CD8 T cells in combination with an MHC Class I molecule. CD4 T cells, also referred to as T helper cells, have limited cytotoxic activity and typically do not kill infected or dysfunctional cells or eliminate pathogens directly. Instead, they participate in the immune response by providing signals which activate and orchestrate other types of immune cells to perform these tasks. Professional APCs, such as dendritic cells and macrophages, process exogenous pathogens and then present small fragments of the degraded pathogen to CD4 T cells in combination with an MHC Class II molecule, through a phenomenon known as cross-presentation, while antigens of exogenous origin are coupled with an MHC Class I molecule to amplify CD8 T cell activity. Antigen cross presentation is of particular importance in the immune system’s response to cancer.

Genetically Engineered T Cells

The ability to enhance the activity of T cells against human cancers through genetic engineering has been among the most significant advances in cancer therapy in the last decade. Advances in understanding T cells and their role in immunology, and an appreciation of their potential use to treat cancer, has increased interest in the clinical application of T cells in recent years, with the field of adoptive immunotherapy attaining increased prominence as a means of enhancing immune control over tumors. Modern molecular biological techniques allow scientists to introduce genes into human T cells that enhance T cell activity, expand their numbers and infuse them back into the patient from whom they were originally collected. We have developed a novel approach to T cell engineering which has enabled us to integrate certain desirable characteristics of both the innate immune system and the adaptive immune system into a single therapeutic construct intended to optimize cancer therapy. This novel cellular immunotherapy platform is designed to redirect T cells to eliminate tumors by building in engulfment pathways that employ phagocytic programs, creating our CER-T cell therapy.

Phagocytosis is a vital cellular process by which a phagocytic cell engulfs and internalizes a target for elimination and is a major mechanism for the removal of pathogens and unwanted cells to maintain tissue homeostasis. The human body removes billions of cells daily through phagocytic processes. Phagocytic removal employs specific cell clearance programs and machinery to eliminate target cells. The process is a crucial part of the innate immune system and is distinct from the adaptive immune response which involves the generation of cytotoxic T cells to elicit antigen-specific, cytolytic target elimination. Compared to traditional CAR-T cell approaches, which largely target the adaptive immune system, we developed CER-T cell therapy to collaboratively mediate both cytotoxic and phagocytic mechanisms to optimize anti-tumor function. By leveraging both immune responses, we believe CER-T cell therapy has the potential to eliminate cancer cells more effectively and with fewer side effects than traditional CAR-T cell therapies.

The recognition of phagocytosis as a therapeutic modality to directly clear cancer cells and initiate anti-tumor T cell immune responses has fueled interest in effectively engaging phagocytes for use in cancer therapy. Macrophage cell engineering and macrophage-targeting approaches that enhance cytotoxic, phagocytic and cytokine-mediated anti-tumor function are in development. Early clinical trial data from therapeutic candidates targeting myeloid inhibitor function has demonstrated the potential to elicit clinical responses. However, the diverse pro-tumor functions of myelo-monocytic cells may offset these efforts by supporting cancer cell survival, proliferation and the release of factors that may impede anti-tumor immune responses. Limited in vivo proliferation and manufacturing challenges have also been hurdles in the development of macrophage-based cellular therapy.

Experimental evidence demonstrates the ability of CER-T cells to engulf targeted cells, employ cytolytic and non-cytolytic killing mechanisms, and exhibit pro-inflammatory and antigen processing capabilities that augment the current capabilities of T cell immunotherapy. To that end, we believe CER-1236 cell therapy, if approved, may become a component of standard of care treatment regimens, used as a monotherapy or in combination with both small molecule therapeutics and biologics to direct robust tumor elimination.

The Increasing Prominence of CAR-T Technology

Immunotherapy is a treatment that harnesses the components and mechanics of the immune system to address diseases and disorders. Cellular immunotherapy is a form of immunotherapy that focuses on modulating or enhancing the activity of different immune cells. One of the more prominent and promising therapeutic uses of T-cells to emerge has been CAR-T cell technology.

CAR-T therapy recognizes specific antigens that are present on the surface of tumor cells and destroys them. The concept of CAR-T builds upon the normal biology of CTLs, whereby naturally occurring receptors serve to activate these cells when a foreign pathogen or cancerous cell is detected. Conventional CAR-T cell therapy involves the genetic manipulation of a patient’s T cells to enable these modified cells to express a receptor designed to bind to a specific surface antigen. To engineer these cells, a fraction of a patient’s T cells are collected from their blood, and a viral vector containing the genetic instructions for the CAR is used to insert those genes into the genome of the T cell through a process known as transduction. Contained in a single viral vector are the genes encoding for each component of the CAR. Typical CAR-T cells include the following components:

The assembly of these core CAR components is depicted in the schematic presented below to which certain non-coding regulatory sequences may be used to augment viral gene expression.

Delivery of conventional CAR-T cell therapies involves a single viral vector.

Conventional CAR-T cell therapies often utilize a lentiviral vector for the delivery of CAR specific genes. Lentiviral particles offer a well-characterized transduction mechanism and are recognized as efficient and convenient vehicles for gene transfer as they demonstrate broad tropism, or activity, in a wide array of cell types, and can be used to target quiescent, or non-dividing, cells. In addition, they do not integrate close to the promoter regions of genes with the frequency of other gene delivery alternatives and lack the immunogenicity of DNA-based vectors, characteristics which provide for enhanced safety. The use of a lentiviral vector to facilitate ex vivo clinical gene transfer has been demonstrated to be safe in humans for two decades with minimal genotoxicity observed in hundreds of patients following gene transfer into T cells or hematopoietic progenitor cells.

Currently, six CAR-T cell therapies have been approved by the FDA for the treatment of certain types of hematological cancers. The first two, approved in 2017, are axicabtagene ciloleucel, sold by Gilead Sciences under the brand name Yescarta, and tisagenlecleucel, sold by Novartis under the brand name Kymriah. A third CAR-T cell therapy, brexucabtagene autoleucel, which is comparable to Yescarta and sold by Gilead under the tradename Tecartus, was approved in 2020. Lisocabtagene matraleucel, sold by Bristol Myers Squibb under the brand name Breyanzi, received FDA approval in February 2021 with Bristol Myers Squibb also receiving approval for idecabtagene vicleucel, sold under the tradename Abecma, in March of that year. Most recently, Janssen Biotech received FDA approval for ciltacabtagene autoleucel, brand name Carvykti, to treat adult patients with relapsed or refractory multiple myeloma and which targets the BCMA protein expressed on cancer cells rather than CD19, the target of the other approved CAR-T cell therapies. Each of these therapies is an autologous therapy and is made from T cells first collected from the patient, which are then genetically modified and administered back to the same patient. Sales of CAR-T cell therapies are anticipated to grow rapidly over the next several years and are expected to exceed $10 billion by 2030. CAR-constructs incorporating alternate immune effector cell types, including NK cells and macrophages, are in earlier stages of clinical development and have only recently entered clinical trials. To date, no CAR-based therapies that employ NK cells or macrophages have received FDA approval. There are at present no FDA approved CAR T cell products for AML.

The Limitations of Current CAR-T Technology

Much of the excitement of cellular therapy surrounds the curative potential of adoptive transfer of genetically engineered T cells. Adoptively transferred T cells proliferate upon their engagement with target antigens and represent a form of therapy that can be appropriately characterized as living and expanding. Efficient targeted killing and tumor elimination may be achieved in a short period of time. However, multiple barriers limit the efficacy of conventional CAR-T cell therapy. A high rate of side effects often accompany treatment with currently approved products, especially in those patients with high tumor burdens. In addition, partial responses occur, often associated with immune escape of the tumor from the CAR or the display by the T cells of an exhaustion phenotype. Moreover, while engineered CAR-T cells have shown remarkable potential in the treatment of hematological cancers, they have not demonstrated equivalent efficacy in the treatment of solid tumors. Curative cell therapies for solid tumors currently do not exist and the importance of this limitation is underscored by the prevalence of solid tumor malignances. The American Cancer Society estimates that solid tumor cancers accounted for more than 1.7 million of the 1.9 million people newly diagnosed with cancer in 2021. Even in hematological malignancies with approved CAR-T cell therapies, less toxic orthogonal treatment approaches are needed as cure rates for CD19-targeted CAR-T cell therapies do not exceed 60%.

Challenges to the use of cellular therapy to address solid tumors often relate to difficulty in developing receptors directed towards targets expressed in high frequency on cancer cells as well as overcoming the immunosuppressive microenvironments that contribute to ineffective immune responses. The tumor stroma, made up of a dense fibrotic matrix, often surrounds solid tumors and acts as a physical barrier, which restricts CAR-T cell access to the tumor. CAR-T cell activity may be further hindered by the tumor microenvironment (“TME”). In the TME, multiple cell types which drive immunosuppression infiltrate solid tumors, including myeloid-derived suppressor cells, tumor-associated macrophages, and regulatory T cells. The interaction of these cells and the tumor cells increases the expression of signaling molecules that enable tumor cell proliferation while dampening the generation of co-stimulatory signals necessary for T cell expansion and persistence. In addition, TME-associated immune dysfunction may result in a down regulation of MHC class I molecules, limiting proper antigen presentation and T cell proliferation. Collectively, these attributes of solid tumors enable them to avoid normal immune surveillance. Increased engagement of the endogenous host response is an important, if not critical, component of CAR-T cell therapy clinical success as the recruitment into the tumor of bystander lymphocytes has been observed in tumor biopsies from patients with curative CAR-T cell therapy. Enhancing the host’s own response to tumor cells offers an important opportunity to improve current CAR T cell responses.

CAR-T recipients may also incur serious adverse events (“SAEs”), perhaps the most prominent of which is cytokine release syndrome (“CRS”). Believed to be related to the rapid proliferation and activation of T cells upon detection of a target antigen, severe or life-threatening CRS was noted in a significant number of patients who participated in the registrational trials of FDA-approved CAR-T therapies. These SAEs can result in patients requiring longer hospitalizations and more intensive medical care. The frequency and severity of observed SAEs is one of the primary reasons that administration of currently approved CAR-T therapy is restricted to a select number of treatment centers. Moreover, aside from the low-level expression of certain cancer specific neoantigens, most tumor associated antigens are also found on normal cells which may lead to serious, if not life threatening, “on-target, off-tumor” toxicities.

We believe that the preferential attributes engineered into our CER-T cell therapies have the potential to represent a next-generation adoptive cellular immunotherapy approach and enable us to overcome many of the limitations which hinder the wider application of current CAR-T technology. The prophagocytic and immunomodulatory properties of CER-T cells are designed to overcome some of the immunosuppressive elements in many solid tumors. In addition, their anticipated superior antigen presentation properties may enhance a patient’s ongoing immune response against tumor antigens. Lastly, healthy cells have minimal expression of TIM-4-L as compared to tumor cells, reducing the potential for on-target off-tumor effects. In consequence, we envision CER-1236 as having a differentiated mechanism for tumor clearance that enables the potential for enhanced activity across a broad array of hematological malignancies and solid tumors.

CER-T Cell Therapy Technology

Distinguishing our CER-1236 cell therapy candidate is the integration into a single therapeutic construct of many of the anti-tumor capabilities resident in both the innate and the adaptive immune systems. We believe the coupling of these functions better emulates normal immune system activity which may promote enhanced T cell activation, proliferation and durability for more robust elimination of cancerous cells and reduction in tumor burden.

We have designed our CER-T constructs to embrace many of the components found in conventional CAR-T cell therapies. The processes and protocols used to genetically modify a patient’s T cells to produce CAR-T cells are well recognized, as is the use of lentivirus in the manufacture of these therapies. Accordingly, we have constructed CER-1236 cell manufacturing processes to be similar to those of CAR-T cells. We expect to benefit from the well-defined regulatory guidelines established by both U.S. and European regulatory authorities related to CAR-T cell therapy and its use.

The biological foundations for CER-T cell therapy

PS, or TIM-4 ligand, is a component of a cell’s plasma membrane and has a key role in cell removal. Under normal physiological conditions, TIM-4-L is restricted to the inner leaflet of the phospholipid bilayer which makes up the plasma membrane of a cell. However, cellular stresses cause the externalization of TIM-4-L to the cell surface. Exposure of TIM-4-L on the outer surface acts as an “eat-me” signal and marks abnormal, stressed and dying or dead cells for phagocytic clearance. A variety of tumors have been shown to have constitutively increased surface TIM-4-L as a result of altered plasma membrane regulation. Among hematologic tumors, loss-of-function mutations in the flippase chaperone transmembrane protein 30A (“TMEM30A”), have been identified in approximately 11% of patients with diffuse large B cell lymphoma (“DLBCL”), and this mutation was correlated with improved response to the standard therapeutic regimen suggesting the host’s immune elimination of TIM-4-L positive tumor cells enhances tumor clearance. We are seeking to exploit the presence of TIM-4-L expressed on the outer cell surface of both hematological malignancies and solid tumors.

CER-1236: Our Lead Development Candidate

As externally oriented TIM-4-L is present on many cancerous cells regardless of tumor type, we believe a single CER construct may demonstrate clinical utility in treating an array of cancers. To that end, we have focused our development activities on optimizing the cancer killing capabilities of a specific CER-T therapeutic design. These efforts have resulted in our lead clinical candidate, CER-1236. In preclinical studies, we have observed CER-1236 to display attractive functional capabilities and product characteristics, among which are:

We have designed CER-1236 to align with components included in the current generation of conventional CAR-T configurations by fusing the external domain of TIM-4, a phagocytic receptor, with intracellular signaling domains from T cells and innate immune cells. TIM-4 harbors endogenous phagocytic capacity through its binding to the pro-phagocytic “eat-me” signal TIM-4-L. CER-1236’s intracellular signaling domains, including TLR2, CD28 and CD3ξ motifs, are designed to augment both TIM-4 mediated phagocytosis and cytotoxic T cell function. Another similarity between conventional CAR-T therapeutic formats and our CER-T design is the delivery vehicle used in transduction. As is found in many approved CAR-T therapies, our CER-T technology also employs a lentiviral vector to facilitate gene delivery to patient-derived T cells. A schematic of the structural elements of CER-1236 is presented below.

Schematic of CER-1236

Abbreviations: TIM-4 = ectodomain of the T cell immunoglobulin mucin domain protein 4; TLR2 = toll-like receptor 2.

CER-1236 employs an innovative mechanism of action

CER-1236 is an autologous T cell therapy candidate designed to target TIM-4-L through the external domain of the prophagocytic receptor TIM-4 protein. This therapeutic construct was developed to combine adaptive T cell killing activity with phagocytic clearance and antigen presentation activity to create T cells with enhanced cancer immunotherapy capabilities. The approach builds on the early success of adoptive T cell transfer, which has demonstrated the ability of T cells to proliferate, traffic, and circulate within both primary and metastatic tumors.

By enhancing phagocytic clearance and antigen presentation activity and integrating them into T cells, we believe CER-T cells offer the potential for more effective elimination of cancer cells. The industry’s decades-long experience with engineered T cell use provides a solid foundation for the development of CER-1236.

As the target ligand of our initial CER-T cell is not an antigen restricted to only certain tumors, CER-1236 T cells may provide clinical benefit across multiple tumor types. The functional interaction of CER-1236 T cells is depicted in the illustration presented below.

CER-1236 T cells are designed to harness the power of both the innate and adaptive immune systems

CER-1236 expresses the external domain of the prophagocytic receptor TIM-4 which is linked to T cell and innate immune cell intracellular signaling domains. TIM-4 is normally expressed on subsets of macrophages and dendritic cells and harbors endogenous phagocytic capacity through its binding to and recognition of TIM-4-L. The intracellular signaling domains in CER-1236 are designed to trigger T cell cytotoxic function and enhance TIM-4 mediated phagocytosis. CD3ξ is the signaling component of the TCR and CD28 is a co-stimulatory domain needed for optimal activation. The TLR2 domain is involved in both innate and adaptive immune responses and activation of TLR2 further enhances signaling through both NF-κB and the mitogen-activated protein (“MAP”) kinase family, promoting T cell activity and phagocytic uptake. Both CD28 and CD3ξ signaling domains are incorporated into approved CAR-T cell products. A third generation anti-CD19 CAR-T cell that incorporates a TLR2 domain is currently in clinical development.

By virtue of the TIM-4 engulfment receptor and the intracellular signaling domains, CER-1236 combines attributes of both T cells and phagocytic cells. In phagocytic cells, such as macrophages and dendritic cells, recognition of TIM-4-L on the surface of apoptotic cells by native TIM-4 leads internalization by utilizing integrin coreceptors to activate phagocytic signaling. TIM-4-mediated phagocytosis depends on activation of the RAC1 GTPase which is similarly targeted by TLR signaling, especially TLR9 and TLR2. However, it has been shown that the intracellular portion of TIM-4 is not required for phagocytosis, and therefore the extracellular domain (“ECD”) of TIM-4 appears to function as a tether during phagocytosis to allow intracellular signaling by other transmembrane phagocytic molecules with which it associates, such as the integrins which are expressed ubiquitously on T cells. Since CER-1236 contains only the ECD of TIM-4, binding to TIM-4-L on tumor cells recruits the cell-surface phagocytosis machinery, and simultaneously directly activates CER-1236 T cells through the intracellular CD3ξ and CD28 costimulatory domains. Phagocytosis and cytokine secretion are further enhanced by the TLR2 intracellular signaling domain.

In preclinical studies, CER-1236 empowers T cells with phagocytic and cytotoxic potency

In an in vitro evaluation of the phagocytic potential of CER-1236, CER-transduced T cells demonstrated robust phagocytosis of TIM-4-L. CER-1236 T cells were produced by transducing donor T cells using a lentiviral vector encoding for the chimeric receptor CER-1236, yielding a high percentage of T cells expressing the TIM-4 receptor, in similar CD4:CD8 ratios to untransduced cells. CER-1251 T cells, which express matching intracellular signaling domains but are unable to bind to TIM-4-L due to a mutation in the gene encoding for the TIM-4 binding site, were also produced as a negative control.

TIM-4-L-coated agarose beads were prelabeled with pHrodo red, a pH-sensitive dye which displays limited fluorescence at neutral pH but generates significant fluorescence in acidic pH. The post-phagocytic fusion of phagosomes and lysosomes leads to a drop in pH which can be detected by pH-sensitive dyes. As is illustrated in the graphic below, CER-1236 T cells co-cultured with TIM-4-L-coated beads displayed significant phagocytic activity with up to 60% of CER-T cells acquiring a pHrodo red signal, indicative of bead capture and internalization. By contrast, untransduced T cells and CER-1251 T cells, with a mutation in the TIM-4 binding site, demonstrated minimal phagocytosis.

CER-1236 displays robust, target-specific phagocytic activity

Gene expression patterns demonstrate the combined cytotoxic and phagocytic functions of CER-1236 T cells. RNA-sequencing enables the interrogation of the transcriptional profile of CER-1236 T cells after stimulation with TIM-4-L, with defined separation between the CER-1236 activated cells and the untransduced and CER-1251 control T cells. As shown in the gene expression profile below, over 1,700 genes were noted to be differentially expressed in CER-1236 stimulated T cells in comparison to CER-1251 stimulated T cells. Among these genes were those related to pathways with well-known involvement in regulating phagocytosis, genes involved in nucleation of the ARP-WASP complex, Rho family GTPases, RAC signaling and phagosome formation. Of note, the RhoG subfamily of GTPase has been previously implicated in TCR-driven phagocytic processes. This aggregate of transcriptional signatures is indicative of the multi-modal immune response elicited by CER-1236 T cells.

Phagocytic and cytotoxic transcriptional signatures demonstrate the plasticity of CER-1236 T cells

CER-1236 T cells were also observed to generate potent anti-cancer responses in cell lines derived from specific hematological malignancies and solid tumors. A mantle cell lymphoma (“MCL”) cell line that has been modified to constitutively express externalized cell surface TIM-4-L was co-cultured with either CER-1236 T cells or untransduced T cells. Notably, CER-1236 T cells eliminated 87% of the MCL cells while the untransduced cells demonstrated minimal cytotoxic ability. In addition, CER-1236 T cells secreted multiple cytokines, including IFNγ, granzyme B and TNFα, all indicative of robust and sustained T cell cytotoxicity. Cytokine secretion was determined to be dependent on binding to TIM-4-L, as CER-1251 T cells did not secrete cytokines despite exposure to cell surface TIM-4-L. Further visual evidence of the cancer-killing capacity of CER-1236 T cells is illustrated in the staining assays depicted in the graphs presented below. In the assays with no CER-1236 T cells, significant proliferation of cancer cells was observed, as evidenced by the increase in red staining, while the growth of cancer cells when exposed to CER-1236 T cells was limited. These results are presented in the graph to the left below.

CER-1236 T cells demonstrate potent cytotoxic responses to cancer cells in vitro

Significant cytotoxic activity of CER-1236 was also noted in an advanced NSCLC cell line, HCC827, which has a mutation in its epidermal growth factor receptor (“EGFR”) gene, a cancer type accounting for between 10% and 15% of all lung adenocarcinoma cases in persons of European descent and higher among the Asian population. As is depicted in the above, right graph, while the addition of CER-1236 demonstrates moderate cancer cell killing activity, the addition of osimertinib, the preferred tyrosine kinase inhibitor option for first-line treatment of EGFR-mutation positive advanced NSCLC, substantially enhanced CER-1236 T cell killing in an osimertinib concentration dependent manner. In contrast, HCC827 cells co-cultured with untransduced T cells displayed minimal changes in cell number as compared to cells incubated in the absence of T cells, at all drug concentrations tested. Conditional cytokine proliferation was also observed with CER-1236 T cell treatment, with IFNγ levels over 400-fold higher in cancer cell cultures which used CER-1236 T cells, in contrast to co-cultures which used untransduced T cells. The addition of osimertinib to co-cultures further increased IFNγ levels by more than two-fold, compared with CER-1236 treatment alone. Similar trends were observed with TNFα and Granzyme B levels and increases in osimertinib concentrations led to dose-dependent CER-1236 T cell proliferation. These results demonstrated that CER-1236 T cell activity could be significantly enhanced by upregulating target expression through concomitant dosing of standard of care medication.

TIM-4-L, a lipid moiety recognized by phagocytic cells as an “eat me” signal, has previously been shown to be aberrantly upregulated on acute promyelocytic (“APL”) blasts, a subset of AML. To further interrogate TIM-4-L across other AML subtypes, we evaluated a panel of primary bone marrow samples and peripheral blood from AML patients. We screened a preliminary panel of primary, treatment-naïve or on-therapy AML bone marrow and PBMC samples by flow cytometry: (n=5 adverse, n=5 intermediate, n=1 APL, n=1 familial, n=5 N/A) (Table 1). We observed both high percent (35.5 % ± 21.6) and geometric mean fluorescence index (“gMFI”) of cell surface TIM-4-L on a range of AML bone marrow samples. The median gMFI of tertiles 1-3 was: T1 n=7, gMFI = 5033; T2 n=8, gMFI = 1873; T3 n=8, gMFI = 611. Of note, the two on-therapy samples showed high percent and gMFI of cell surface TIM-4-L, with a patient receiving 5-azacytidine showing 1.8 fold TIM-4-L gMFI over median. The second patient receiving TKI therapy showed 3.3 fold TIM-4-L gMFI over median. Healthy donor samples had much lower cell surface TIM-4-L, with a mean gMFI of 582. Circulating AML leukemic blasts were also evaluated for cell surface TIM-4-L and showed high concordance with BM blasts, with high levels of cell surface TIM-4-L compared to healthy donor peripheral blood mononuclear cells (“PBMCs”).

Table 1. AML patient characteristics

AML from bone marrow or PBMC have elevated cell surface TIM-4-L

CER-1236 T cells were also observed to generate potent anti-cancer responses against myeloid malignancies. AML is a heterogenous, and aggressive hematopoietic malignancy characterized by the rapid buildup of immature myeloid cells in the bone marrow and blood. We used AML cell lines depicted in the graph below, Kasumi-1 and MV-4-11, to demonstrate cytotoxic anti-AML responses in co-culture studies with CER-1236. Similar to in vitro cytotoxicity results observed with B cell malignancy and NSCLC cell lines, we show the addition of CER-1236 alone to AML cell lines demonstrates potent cell killing activity. Kasumi-1 harbors a p53 mutation, marking a subset of unfavorable disease risk AML patients, while MV4-11 cells carry a FLT-3 mutation, a proliferative AML leukemia subset. Both cell lines co-cultured with untransduced T cells displayed minimal changes in cell number as compared to cells incubated in the absence of T cells. CER-1236 T cells secreted multiple cytokines in co-cultures with AML cell lines, including IFNγ, granzyme B and TNFα, all indicative of robust and sustained T cell cytotoxicity.

CER-1236 T cells demonstrate robust in vivo elimination of MCL xenografts

The cancer killing capacity of CER-1236 that was demonstrated in studies involving MCL cell lines was also noted in a mouse xenograft model. Immune deficient NOD scid gamma (“NSG”) mice were xenografted with the human REC-1 cell line at Day -2 and then treated with 8 mg/kg ibrutinib or vehicle and administered CER-1236 T cells daily from Day -1 to study completion. Administration of 7.5e6 CER-1236 T cells in the presence of ibrutinib resulted in the elimination of REC-1 tumor burden in all 11 of the mice in this treatment cohort. The administration of CER-1236 T cells in the absence of ibrutinib eliminated the tumors in all nine animals treated with CER-1236 T cells alone. No tumor growth inhibition was observed in either the vehicle-treated or ibrutinib-treated control groups. Median survival for mice receiving CER-1236 T cells with or without co-administration of ibrutinib was not reached during the study period. The results of this study are presented in the charts below.

A single infusion of CER-1236 T cells eliminates tumors and improves survival

The level of CER-1236 T cells in peripheral blood displayed robust expansion at Day 7, with or without the concomitant administration of ibrutinib. Animals that received CER-1236 T cells demonstrated an expansion of over 400-fold as compared to Day 2 levels both in the absence and presence of ibrutinib. High levels of CER-1236 T cells did not persist in the periphery and animals that received CER-1236 T cells showed a greater than 95% contraction in cell count from peak numbers by Day 14 with subsequent CER-T cell expansion likely prompted by residual tumor cell encounters. CER-1236 T cells also maintained robust proliferative capacity despite repeated in vitro antigen challenges with no evidence of T cell exhaustion noted. These findings are illustrated in the following charts.

A single infusion of CER-1236 T cells generated rapid cell expansion across repeated challenges

CER-1236 demonstrates in vivo tumor clearance in NSCLC adenocarcinoma xenograft

We envisioned that the simultaneous exposure to both osimertinib and CER-1236 would lead to synergistic in vivo anti-tumor responses. HCC827 NSCLC cells were inoculated into the flanks of NSG mice. Once established, the mice were dosed with a short course of the EGFR inhibitor osimertinib to prime TIM-4-L antigen on tumors and administered 2.5e6 CER-1236 T cells. Treatment groups that received the EGFR inhibitor alone, after initial tumor regression, developed progressive disease, as evidenced in the below left graph. In contrast, animals infused with CER-1236 T cells demonstrated potent anti-tumor responses in the presence of osimertinib. CER-1236 T cells expanded rapidly in the blood, with the highest expansion observed in the osimertinib-treated cohorts, as observed in the below right graph. Importantly, no evidence of organ toxicity or weight loss was observed with increases in body weight recorded in all groups over the course of the study. Analysis of the tumors post-infusion indicated extensive infiltration of T cells compared to untransduced controls.

CER-1236 T cells infused to Osimertinib dosed animals showed tumor elimination and higher levels of T cell expansion

We believe that the preclinical models of AML, MCL, ovarian cancer and EGFR-mutation positive NSCLC demonstrate the ability of CER-1236 T cells to induce collaborative innate-adaptive anti-tumor immune responses in both in vitro and in vivo studies. Moreover, concurrent treatment with standard-of-care therapeutics for each of these indications increases target ligand, conditionally bolstering CER-1236 T cell function to augment anti-tumor activity. Additionally, in antigen presentation assays, activated CER-1236 T cells exhibited superior cross-presentation ability relative to conventional T cells, triggering specific TCR-T cell responses in an MHC class I and TLR-2 dependent manner, overcoming the limited antigen presentation capabilities of conventional T cells. These results indicate that CER-1236 T cells have the potential to achieve optimal tumor control by eliciting both cytotoxic effects and cross-priming.

CER-1236 T cells did not elicit safety signals in preclinical safety/toxicology studies

Importantly, no evidence of toxicity was observed during a safety/toxicology study conducted in mice, a clinically relevant model that has an identical structure of TIM-4-L as humans. The effects of CER-1236 administration were evaluated at 2 doses at 3- and 28-day timepoints. No incidence of anemia, thrombocytopenia, neutropenia or coagulation abnormalities were recorded in any condition. Hematologic indices, including hemoglobin/hematocrit, platelets and neutrophils remained stable throughout the study. No perturbation of clinical chemistries was noted. None of the animals experienced weight loss, morbidity or unexpected mortality. No clinically relevant tissue abnormalities were noted at either timepoint at the high dose in any organ evaluated. Overall, these data demonstrate a lack of on-target off-tumor responses and support the safety profile of CER-1236.

The potential for off-target toxicity by CER-1236 was also tested against primary human cells or iPSC-derived human cells representing vital organs, including the CNS, heart, lungs, liver, spleen, kidneys, GI tract, and gonads. CER-1236 was co-cultured with these cells and activation was monitored by IFNγ secretion or cytotoxic effect. Over the time points tested, CER-1236 showed potent activation and cytotoxicity against AML cells (Below, top and bottom graphs), but limited activation (Below, top graph) and no cytotoxicity (Below, bottom graph) against any of the human cell types tested. These experiments support the lack of off-target responses by CER-1236 T cells.

CER-1236 Clinical Development Strategy

Based on the extensive preclinical data that we have assembled regarding the use of CER-1236 T cells to combat cancer, we intend to commence clinical trials with our initial treatment target being patients suffering from relapsed, or refractory AML as well as those subsets who are positive for Minimal Residual Disease and the TP53 mutation. We subsequently intend to expand the clinical development of CER-1236 to include solid tumors such as NSCLC and ovarian cancer. We expect these clinical trials to evaluate the safety, the potential therapeutic utility and applicable dose of CER-1236. In addition, we anticipate that these clinical trials may provide insight into the possible use of CER-1236 to treat an array of hematologic and solid tumors.

We believe this drug candidate has the potential to be a therapy for the unmet needs of targeted indications, if approved, and by leveraging the innate immune system’s phagocytic capabilities, could be differentiated by its safety, tolerability, efficacy and clinical benefit over current therapeutic approaches, which have been observed in preclinical studies. None of the abovementioned statements regarding any of our products in development are intended to be a prediction or conclusion of efficacy. No clinical trials on our product candidates have commenced so no conclusions relating to such attributes can be made.

Disease backgrounds

Acute Myeloid Leukemia

AML is a cancer of the blood and bone marrow that affects myeloid cells, cells which normally develop into the various types of mature blood cells. It is a fast-progressing and aggressive form of blood cancer, with a median time from diagnosis to death of just 5.5 months. Despite over 20 FDA approvals for AML, the death rate in AML patients has only moderately diminished since the 1990s, with the disease hovering around a 32% 5-year overall survival rate according to the National Cancer Institute. AML was diagnosed in 21,000 Americans in 2019, and there were 11,000 AML-related deaths in the same year, according to the Leukemia and Lymphoma Society. Like most cancers, it is a terrifying diagnosis for patients which often leads to many rounds of treatment and a complete disruption of their lives.

Figure 1: Rate of new cases of AML and associated mortality in the United States 1992-2020

Source: NIH, National Cancer Institute

According to Alliance Global Partners, the total AML therapeutic market is estimated to be approximately USD $1B-$1.5B as of 2023 and projected to grow at a compound annual growth rate (CAGR) of ~9% based on the historical growth rate, the anticipated approval of new therapeutics, and an increase in the number of total patients to be diagnosed in the coming years. According to estimates, by 2028, the AML therapeutic market will likely grow to over $2B+, highlighting the significant economic upside associated with any improvements to the standard of care from the current pipeline therapeutics.

Current therapies and their limitations

Currently, there are over 20 FDA approved therapeutics in the AML space, with eight approvals having come in just two years from 2017-2019. Before then, AML was treated with decades-old combination chemotherapy regimens, including cytarabine and anthracycline. This regimen has about a 70-80% complete response (“CR”) rates of adults younger than 60 years and 40-60% of fit adults older than 60 years old. For those eligible for the chemotherapy regimen and experiencing a CR, many patients with adverse features (70%) undergo allogeneic HSCT which, in some patients are “curative.” Unfortunately, a significant proportion (up to 50%) of AML patients are over the age of 65 and are “unfit” for intensive chemotherapy, requiring different treatment approaches for medically unfit patients. The treatment landscape for older unfit adults with AML fundamentally changed with the recent availability of new drugs, in particular the oral B-cell lymphoma 2 inhibitor venetoclax. Venetoclax is used in conjunction with azacytidine to treat these patients, with a complete response rate ~65%. However the majority of adult patients with AML experience relapse despite initially attaining CR; a venetoclax-based doublet therapy for medically less-fit adults carries a median survival of ~14.7 months. The prognosis for patients who are refractory to or relapse after frontline azacitidine venetoclax is dismal with median overall survival of 2.4 months, making this an area of high unmet need. Such patients who do not respond to frontline therapy with azacitidine or venetoclax, and the subset who do not respond to targeted therapies, e.g., IDH1/2 inhibitors, are candidates for investigational trials. To date, there are no approved cell therapeutic approaches to treat AML.

Ovarian Cancer

The American Cancer Society estimates for ovarian cancer in the United States for 2024 are:

Ovarian cancer is one of the leading causes of cancer deaths among women. A woman’s risk of getting ovarian cancer during her lifetime is about 1 in 87. Her lifetime chance of dying from ovarian cancer is about 1 in 130. (These statistics don’t count low malignant potential ovarian tumors.) This cancer mainly develops in older women. About half of the women who are diagnosed with ovarian cancer are 63 years or older. It is more common in White women than Black women.

Non-Small Cell Lung Cancer

Most lung cancer statistics include both small cell lung cancer (“SCLC”) and NSCLC. In general, about 10% to 15% of all lung cancers are SCLC, and about 80% to 85% are NSCLC. Lung cancer (both small cell and non-small cell) is the second most common cancer in both men and women in the United States (not counting skin cancer).

The American Cancer Society’s estimates for lung cancer in the US for 2024 are:

Lung cancer mainly occurs in older people. Most people diagnosed with lung cancer are 65 or older; a very small number of people diagnosed are younger than 45. The average age of people when diagnosed is about 70.

Lung cancer is by far the leading cause of cancer death in the US, accounting for about 1 in 5 of all cancer deaths. Each year, more people die of lung cancer than of colon, breast, and prostate cancers combined.

Overall, the chance that a man will develop lung cancer in his lifetime is about 1 in 16; for a woman, the risk is about 1 in 17. These numbers include both people who smoke and those who don’t smoke. For people who smoke, the risk is much higher, while for those who don’t, the risk is lower.

Statistics on survival in people with lung cancer vary depending on the type of lung cancer, the stage (extent) of the cancer when it is diagnosed, and other factors.

5-year relative survival rates for non-small cell lung cancer

These numbers are based on people diagnosed with NSCLC between 2012 and 2018.

Our therapeutic approach and development program

We anticipate the design of the clinical development program for CER-1236 to enable our evaluation of its therapeutic utility in treating both hematologic and solid tumors, as the capacity of a single therapeutic construct to provide clinical benefit across this diversity of tumor types would represent a significant advance in cancer immunotherapy. Due to the therapy’s novel mechanism of action, engaging both the innate and the adaptive immune response, and the broad expression profile of PS on a variety of hematologic and solid tumors, we intend to employ an adaptive Phase 1 trial design to evaluate patient response to CER-1236. As such, the dosing protocol will emphasize a gradual increase in the delivered dose with the objective of achieving a clinical signal, while ensuring patient safety. We also intend our Phase 1 trial design to enable an evaluation of appropriate dosing strategies to optimize CER-T engagement and proliferation.

We believe, subject to discussions with the FDA and other regulatory authorities, that there may be a full development path to registration and use in the larger AML patient populations on achieving positive safety data along with indications of therapeutic benefit in these initial trial cohorts. We believe CER-1236 may provide significant treatment advantages over currently available therapeutics, including CAR-T therapy as a result of its potential to enhance objective response rates and the duration of response related to the comprehensive, coordinated engagement of the innate and adaptive immune systems and a sustained signaling environment. We believe this novel mechanism of action will enable our advance of a single therapeutic construct to address the substantial unmet need for a safe and effective cell therapy offering an improved therapeutic profile, despite significant competition. We subsequently anticipate initiating clinical trials for additional indications, including the possible application of CER-1236 in the treatment of certain solid tumors such as EGFR mutation positive NSCLC and ovarian cancer.

Manufacturing Strategy

The manufacture of product candidates derived from our autologous CER-1236 T cells involves the same type of equipment, materials and protocols already used in the manufacture of currently FDA-approved CAR-T cell therapies, which we believe will provide us numerous benefits. We are planning for CER-1236 cell product to be manufactured using an automated closed process, with product manufacture continuous from bulk harvested cells through to cryopreserved drug product bags. There are multiple factors involved in the manufacturing process needed to ensure proper CER-T cell cryopreservation both preceding and following freezing, including the thawing process and post-thaw handling prior to patient administration. These factors are well understood and procedures have been identified to optimize yield, activity, stability and consistency. In addition, we may be able to take advantage of the increasing regulatory familiarity with these established protocols. Our expected manufacturing process embraces a fully automated, closed-system design intended to minimize exposure to potential contaminants and ensure consistent successful manufacture of the product. The product will be manufactured in a contract manufacturing facility which maintains a quality system compliant with current Good Manufacturing Practice (“cGMP”) requirements.

Lentivirus containing CER-1236 will be produced following a cGMP process using cGMP plasmids.

We have entered into a contract manufacturing agreement related to the production of drug product for our clinical trials, and we anticipate entering into similar arrangements regarding plasmid, viral vector and final drug product manufacture for drug product to be used in subsequent clinical trial phases in the future. We intend to advance related process development work both internally and with our contract manufacturing organization (“CMO”) partners. In the event a product candidate receives regulatory approval, we anticipate entering into contract manufacturing agreements with one or more CMOs to support product launch and commercial manufacture.

Intellectual Property

Intellectual property is of vital importance in our field and in biotechnology generally. Our commercial success will depend in part on obtaining and maintaining patent protection for our current and future product candidates. We seek to protect and enhance proprietary technology, inventions, and improvements that are commercially important to the development of our business by seeking, maintaining, and defending our patent rights. When available to expand market exclusivity, our strategy is to obtain or license additional intellectual property related to current or contemplated development platforms, core elements of technology, and/or clinical candidates. We will also seek to rely on regulatory protection afforded through inclusion in expedited development and review, data exclusivity, market exclusivity, and patent term extensions, where available. In addition to patent protection, we also may rely on trademark registration, trade secrets, know-how, other proprietary information, and continuing technological innovation to develop and maintain our competitive position. We seek to protect and maintain the confidentiality of proprietary information to protect aspects of our business that are not amenable to, or that we do not consider appropriate for, patent protection.

The term of individual patents depends upon the legal term of the patents in the countries in which they are obtained. In most countries in which we file, including the United States, the patent term is 20 years from the earliest date of filing a non-provisional patent application. In the United States, a patent’s term may be lengthened by patent term adjustment, which compensates a patentee for administrative delays by the U.S. Patent and Trademark Office (“USPTO”) in examining and granting a patent, or may be shortened if a patent is terminally disclaimed over an earlier filed patent. In the United States, the patent term of a patent that covers an FDA-approved drug may also be eligible for patent term extension, which permits patent term restoration as compensation for the patent term lost during the FDA regulatory review process. The Hatch-Waxman Act permits a patent term extension of up to five years beyond the expiration of the patent. The length of the patent term extension is related to the length of time the drug is under regulatory review. Patent term extension cannot extend the remaining term of a patent beyond a total of 14 years from the date of product approval, only one patent applicable to an approved drug may be extended, and only those claims covering the approved drug, a method for using it, or a method for manufacturing it may be extended. Similar provisions are available in Europe and other foreign jurisdictions to extend the term of a patent that covers an approved drug. In the future, if and when our product candidates receive FDA approval, we expect to apply for patent term extensions on patents covering those product candidates. We plan to seek patent term extensions to any issued patents we may obtain in any jurisdiction where such patent term extensions are available.

In some instances, we submit patent applications directly to the USPTO as provisional patent applications. Corresponding non-provisional patent applications must be filed not later than 12 months after the provisional application filing date. While we intend to timely file non-provisional patent applications relating to our provisional patent applications, we cannot predict whether any such patent applications will result in the issuance of patents that provide us with any competitive advantage.

We will file U.S. non-provisional applications and Patent Cooperation Treaty (“PCT”) applications that claim the benefit of the priority date of earlier filed provisional applications, when applicable. The PCT system allows a single application to be filed within 12 months of the original priority date of the provisional patent application, and to designate all of the PCT member states in which national phase patent applications can later be pursued based on the international patent application filed under the PCT. The PCT search authority performs a patentability search and issues a non-binding patentability opinion which can be used to evaluate the chances of success for the national applications in foreign countries prior to having to incur the filing fees. Although a PCT application does not issue as a patent, it allows the applicant to seek protection in any of the member states through national-phase patent applications. At the end of the period of 30 months from the first priority date of the provisional patent application, separate national phase patent applications can be pursued in any of the PCT member states either by direct national filing, or in some cases, by filing through a regional patent organization, such as the European Patent Office. The PCT system delays expenses, allows a limited evaluation of the chances of success for national/regional patent applications, and enables substantial savings where applications are abandoned within the first thirty months of filing.

For all patent applications, we determine claiming strategy on a case-by-case basis. Advice of counsel and our business model and needs are always considered. We continuously reassess the number and type of patent applications, as well as the scope of our patent claims to pursue coverage and value for our processes and compositions, given existing patent office rules and regulations. Further, claims may be modified during patent prosecution to meet our intellectual property and business needs.

We have sought patent protection in the United States and various international jurisdictions related to the CER-1236 T cell technology platform and its constructs, as well as their use as individual cellular compositions and product candidates targeting specific diseases. We also intend to seek patent protection related to the processes and materials used in CER-1236 T cell expression as well as its use in combination therapies. As of April 8, 2025, our patent portfolio comprises nine different patent families filed in various jurisdictions worldwide. These patent families include two issued patents in the United States, one of which relates to CER-1236; two allowed U.S. applications, which both relate to CER-1236; nine pending U.S. applications; thirteen issued patents in France, Germany, Italy, Spain, United Kingdom, China, Japan, Hong Kong, and Mexico; and thirty-one pending applications in Canada, China, Europe, Hong Kong, Japan, and Korea. These patents and applications, if and when issued, are projected to expire from 2037 to 2042, absent any available patent term adjustments or extensions. We intend to pursue, when possible, further composition, method of use, dosing, formulation, and other patent protection directed to our current and new product candidates. We may also pursue patent protection with respect to manufacturing and drug development processes and technology.

The following issued patents are directed at a composition of matter and provide coverage for our CER-1236 T cell candidate:

U.S. Patent No. 11,708,423, having an anticipated expiration date of March 26, 2039, including 186 days of patent term adjustment awarded by the USPTO;

EP Patent No. 3,519,441 (validated in the United Kingdom, France, Spain, Germany, and Italy), having an anticipated expiration date of September 26, 2037, absent any available patent term adjustments or extensions;

JP Patent No. 7286658 having an anticipated expiration date of September 21, 2038, absent any available patent term adjustments or extensions; and

CN Patent No. ZL201880076426.1 having an anticipated expiration date of September 21, 2038, absent any available patent term adjustments or extensions.

Competition

The biotechnology and pharmaceutical industries have made substantial investments in recent years into the rapid development of novel immunotherapies for the treatment of a range of pathologies, including cancers, making this a highly competitive market.

We face substantial competition from multiple sources, including large and specialty pharmaceutical, biopharmaceutical and biotechnology companies, academic research institutions and governmental agencies, and public and private research institutions. Our competitors compete with us based on the specific technologies employed, and on the stage of product candidate development. In addition, many small biotechnology companies have formed collaborations with large, established companies to (i) obtain support for their research, development, and commercialization of products, or (ii) combine several treatment approaches to develop longer lasting or more efficacious treatments that may potentially directly compete with our current or future product candidates.

In addition to the current standard of care treatments for patients with cancer, numerous commercial and academic preclinical studies and clinical trials are being undertaken by a large number of parties to assess novel technologies and product candidates in the field of immunotherapy. Results from these studies and trials have fueled increasing levels of interest in the field of immunotherapy. Accordingly, we face competition from numerous pharmaceutical and biotechnology entities related to the development of cellular-based therapies to treat cancer. We expect to face competition from other companies developing TCR T therapies, such as Adaptimmune Therapeutics, plc GlaxoSmithKline plc, MediGene AG, TCR2 Therapeutics Inc., TScan Therapeutics Inc. and Ziopharm Oncology, Inc. We also may compete with other T cell therapy companies with target discovery platforms, such as Adaptive Therapeutics, Inc., Immatics, N.V., 3T Biosciences, Inc., and Sana Biotechnology, Inc., among others. We may also compete against a significant number of companies engaged in the development of autologous and allogeneic CAR- T, CAR-NK, TIL and T cell engager technologies including larger companies such as Gilead Sciences, Inc., Bristol-Myers Squibb Company and Amgen, Inc. as well as smaller companies such as Nkarta Inc., Allogene Therapeutics Inc., Century Therapeutics Inc., and Fate Therapeutics Inc., among others.

Many of our competitors, either alone or in combination with their respective strategic partners, have significantly greater financial resources and expertise in R&D, manufacturing, the regulatory approval process, and marketing than we do. Mergers and acquisitions activity in the pharmaceutical, biopharmaceutical, and biotechnology sector is likely to result in greater resource concentration among a smaller number of our competitors. Smaller or early-stage companies may also prove to be significant competitors, particularly through sizeable collaborative arrangements with established companies. These competitors also compete with us in recruiting and retaining qualified scientific and management personnel, establishing clinical trial sites and patient registration for clinical trials, and acquiring technologies complementary to, or necessary for, our programs.

Our commercial opportunity could be reduced or eliminated if one or more of our competitors develop and commercialize products that are safer, more effective, better tolerated, or of greater convenience or economic benefit than our proposed product offering. Our competitors also may be in a position to obtain FDA or other regulatory approval for their products more rapidly, resulting in a stronger or dominant market position before we are able to enter the market. The key competitive factors affecting the success of all of our programs are likely to be product safety, efficacy, convenience, and treatment cost.

In the event we receive regulatory approval for any of our product candidates, we will likely compete with other cost-effective and reimbursable treatments used to treat cancer. The most common treatment modalities for patients with cancer are surgery, radiation, and drug therapy, including chemotherapy, hormone therapy, biologic therapy, such as monoclonal and bispecific antibodies, immunotherapy, and cell-based therapy, used alone or in combination to enhance efficacy. Our CER-T cell therapy candidates, if any are approved, may not be competitive with them. Some of these drugs are branded and subject to patent protection, and others are available on a generic basis. Insurers and other third-party payors may also encourage the use of generic products or specific branded products. As a result, obtaining market acceptance of any of our CER-T cell therapies that we successfully introduce to the market may pose challenges.

Government Regulation

In the United States, biological products are licensed by the FDA for marketing under the Public Health Service Act (“PHS Act”) and regulated under the Federal Food, Drug, and Cosmetic Act (“FDCA”). Both the FDCA and the PHS Act and their corresponding regulations govern, among other things, the testing, manufacturing, safety, purity, potency, efficacy, labeling, packaging, storage, recordkeeping, distribution, marketing, sales, import, export, reporting, advertising, and other promotional practices involving biological products. FDA clearance of an IND application must be obtained before commencing clinical testing of biological products. FDA licensure also must be obtained before marketing of biological products. The process of obtaining regulatory approvals and the subsequent compliance with appropriate federal, state, local, and foreign statutes and regulations require the expenditure of substantial time and financial resources.

U.S. Development Process

The process required by the FDA before a biological product may be marketed in the United States generally involves the following:

Before testing any biological product candidate in humans, the product candidate enters the preclinical testing stage. Nonclinical tests include laboratory evaluations of product chemistry, pharmacology, toxicity, and formulation, as well as animal studies to assess the potential safety and activity of the product candidate. The conduct of the nonclinical tests must comply with federal regulations and requirements including GLPs.

The clinical study sponsor must submit the results of the nonclinical tests, together with manufacturing information, analytical data, any available clinical data or literature, and a proposed clinical protocol, to the FDA as part of the IND. Some nonclinical testing typically continues after the IND is submitted. An IND is an exemption that allows an unapproved product to be shipped in interstate commerce for use in an investigational clinical trial and a request for FDA authorization to administer an investigational product to humans. The IND automatically becomes effective 30 days after receipt by the FDA, unless the FDA requests certain changes to a protocol before the trial can begin, or the FDA places the clinical trial on a clinical hold within that 30-day time period. In such a case, the IND sponsor and the FDA must resolve any outstanding concerns before the clinical trial can begin. The FDA may also impose clinical holds on a biological product candidate at any time before or during clinical trials due to safety concerns or non-compliance. If the FDA imposes a clinical hold, trials may not recommence without FDA authorization and then only under terms authorized by the FDA.

Clinical trials may involve the administration of the biological product candidate to healthy volunteers or subjects under the supervision of qualified investigators. Clinical trials involving some products for certain diseases, including some rare diseases may begin with testing in patients with the disease. Clinical trials are conducted under protocols detailing, among other things, the objectives of the clinical trial, dosing procedures, subject selection, and exclusion criteria, and the parameters to be used to monitor subject safety, including stopping rules that assure a clinical trial will be stopped if certain adverse events should occur. Each protocol and any amendments to the protocol must be submitted to the FDA as part of the IND. Clinical trials must be conducted and monitored in accordance with the FDA’s regulations comprising the GCP requirements, including the requirement that all research subjects or his or her legal representative provide informed consent. Further, each clinical trial must be reviewed and approved by an independent IRB, at or servicing each institution at which the clinical trial will be conducted. An IRB is charged with protecting the welfare and rights of study participants and considers such items as whether the risks to individuals participating in the clinical trials are minimized and are reasonable in relation to anticipated benefits. The IRB also approves the form and content of the informed consent that must be signed by each clinical trial subject or his or her legal representative and must monitor the clinical trial until completed. Additionally, some trials are overseen by an independent group of qualified experts organized by the trial sponsor, known as a data safety monitoring board or committee.

Human clinical trials are typically conducted in three sequential phases that may overlap or be combined:

Post-approval clinical trials, sometimes referred to as Phase 4 clinical trials, may be conducted after initial marketing approval. These clinical trials are used to gain additional experience from the treatment of patients in the intended therapeutic indication, particularly for long-term safety follow-up.

During all phases of clinical development, the FDA requires extensive monitoring and auditing of all clinical activities, clinical data, and clinical trial investigators. Annual progress reports detailing the results of the clinical trials must be submitted to the FDA. Written IND safety reports must be promptly submitted to the FDA and the investigators for serious and unexpected adverse events, any findings from other studies, tests in laboratory animals or in vitro testing that suggest a significant risk for human subjects, or any clinically important increase in the rate of serious suspected adverse reactions over those listed in the protocol or investigator brochure. The sponsor must submit an IND safety report within 15 calendar days after the sponsor determines that the information qualifies for such reporting. The sponsor also must notify the FDA of any unexpected fatal or life-threatening suspected adverse reaction within 7 calendar days after the sponsor’s initial receipt of the information. Phase 1, Phase 2, and Phase 3 clinical trials may not be completed successfully within any specified period, if at all. The FDA or the sponsor or its data safety monitoring board may suspend a clinical trial at any time on various grounds, including a finding that the research subjects or patients are being exposed to an unacceptable health risk. Similarly, an IRB can suspend or terminate approval of a clinical trial at its institution if the clinical trial is not being conducted in accordance with the IRB’s requirements or if the biologic has been associated with unexpected serious harm to patients.

Concurrent with clinical trials, companies usually complete additional animal studies and must also develop additional information about the physical characteristics of the biologic as well as finalize a process for manufacturing the product in commercial quantities in accordance with cGMP requirements. To help reduce the risk of the introduction of adventitious agents with use of biologics, the PHS Act emphasizes the importance of manufacturing control for products whose attributes cannot be precisely defined. The manufacturing process must be capable of consistently producing quality batches of the product candidate and, among other things, the sponsor must develop methods for testing the identity, strength, quality, potency, and purity of the final biological product. Additionally, appropriate packaging must be selected and tested and stability studies must be conducted to demonstrate that the biological product candidate does not undergo unacceptable deterioration over its shelf life.

There are also various laws and regulations regarding laboratory practices, the experimental use of animals, and the use and disposal of hazardous or potentially hazardous substances in connection with the research. In each of these areas, the FDA and other regulatory authorities have broad regulatory and enforcement powers, including the ability to levy fines and civil penalties, suspend or delay issuance of approvals, seize or recall products, and withdraw approvals.

Information about certain clinical trials must be submitted within specific timeframes for public dissemination on the clinicaltrials.gov website. Sponsors or distributors of investigational products for the diagnosis, monitoring, or treatment of one or more serious diseases or conditions must also have a publicly available policy on evaluating and responding to requests for expanded access requests.

U.S. Review and Approval Processes

After the completion of clinical trials of a biological product, FDA approval of a BLA must be obtained before commercial marketing of the product begins. The BLA must include results of product development, laboratory, and animal studies, human studies, information on the manufacture and composition of the product, proposed labeling, and other relevant information. The testing and approval processes require substantial time and effort and there can be no assurance that the FDA will accept the BLA for filing and, even if filed, that any approval will be granted on a timely basis, if at all.

Under the Prescription Drug User Fee Act, as amended (“PDUFA”), each BLA may be accompanied by a significant user fee. Under federal law, the submission of most applications is subject to an application user fee. The sponsor of an approved application is also subject to an annual program fee. Fee waivers or reductions are available in certain circumstances, including a waiver of the application fee for the first application filed by a small business. Additionally, no user fees are assessed on BLAs for product candidates designated as orphan drugs, unless the product candidate also includes a non-orphan indication.

Within 60 days following submission of the application, the FDA reviews a BLA submitted to determine if it is substantially complete before the agency accepts it for filing. The FDA may refuse to file any BLA that it deems incomplete or not properly reviewable at the time of submission and may request additional information. In this event, the BLA must be resubmitted with the additional information. The resubmitted application is also subject to review before the FDA accepts it for filing. The application also needs to be published and submitted in an electronic format that can be processed through the FDA’s electronic systems. If the electronic submission is not compatible with the FDA’s systems, the BLA can be refused for filing. Once the submission is accepted for filing, the FDA begins an in-depth substantive review of the BLA. The FDA reviews the BLA to determine, among other things, whether the proposed product is safe, potent, and effective, for its intended use, and has an acceptable purity profile, and whether the product is being manufactured in accordance with cGMPs to assure and preserve the product’s identity, safety, strength, quality, potency and purity. The FDA may refer applications for novel products or products that present difficult questions of safety or efficacy to an advisory committee, typically a panel that includes clinicians and other experts, for review, evaluation, and a recommendation as to whether the application should be approved and under what conditions. The FDA is not bound by the recommendations of an advisory committee, but it considers such recommendations carefully when making decisions. During the biological product approval process, the FDA also will determine whether a REMS is necessary to assure the safe use of the biological product. If the FDA concludes a REMS is needed, the sponsor of the BLA must submit a proposed REMS; the FDA will not approve the BLA without a REMS, if required.

Before approving a BLA, the FDA may inspect the facilities at which the product is manufactured. The FDA will not approve the product unless it determines that the manufacturing processes and facilities are in compliance with cGMP requirements and adequate to assure consistent production of the product within required specifications. Additionally, before approving a BLA, the FDA will typically inspect one or more clinical trial sites to assure that the clinical trials were conducted in compliance with IND study requirements and GCP requirements. To assure cGMP and GCP compliance, an applicant must incur significant expenditure of time, money, and effort in the areas of training, record keeping, production and quality control.

Notwithstanding the submission of relevant data and information, the FDA may ultimately decide that the BLA does not satisfy its regulatory criteria for approval and deny approval. Data obtained from clinical trials are not always conclusive and the FDA may interpret data differently than the sponsor interprets the same data. If the agency decides not to approve the BLA in its present form, the FDA will issue a complete response letter that describes all of the specific deficiencies in the BLA identified by the FDA. The deficiencies identified may be minor, such as requiring labeling changes, or major, such as requiring additional clinical trials. Additionally, the complete response letter may include recommended actions that the applicant might take to place the application in a condition for approval. If a complete response letter is issued, the applicant may either resubmit the BLA, addressing all of the deficiencies identified in the letter, or withdraw the application.

If a product receives regulatory approval, the approval may be significantly limited to specific diseases and dosages or the indications for use may otherwise be limited, which could restrict the commercial value of the product. Further, the FDA may require that certain contraindications, warnings, or precautions be included in the product labeling. The FDA may impose restrictions and conditions on product distribution, prescribing, or dispensing in the form of a risk management plan, or otherwise limit the scope of any approval. In addition, the FDA may require post-marketing clinical trials, sometimes referred to as Phase 4 clinical trials, designed to further assess a biological product’s safety and effectiveness, and testing and surveillance programs to monitor the safety of approved products that have been commercialized. As a condition for approval, the FDA may also require additional nonclinical testing as a Phase 4 commitment.

One of the performance goals agreed to by the FDA under the PDUFA is to review standard BLAs in ten months from filing and priority BLAs in six months from filing, whereupon a review decision is to be made. The FDA does not always meet its PDUFA goal dates for standard and priority BLAs and its review goals are subject to change from time to time. The review process and the PDUFA goal date may be extended by three months if the FDA requests or the BLA sponsor otherwise provides additional information or clarification regarding information already provided in the submission within the last three months before the PDUFA goal date.

Post-Approval Requirements

Maintaining substantial compliance with applicable federal, state, and local statutes and regulations requires the expenditure of substantial time and financial resources. Rigorous and extensive FDA regulation of biological products continues after approval, particularly with respect to cGMP. We will rely, and expect to continue to rely, on third parties for the production of clinical and commercial quantities of any products that we may commercialize. Manufacturers of our products are required to comply with applicable requirements in the cGMP regulations, including quality control and quality assurance and maintenance of records and documentation.

Following approval, the manufacturing facilities are subject to inspections by the FDA, and such inspections may result in an issuance of FDA Form 483 deficiency observations, untitled letter, or a warning letter, which can lead to plant shutdown and other more serious penalties and fines. Prior to the institution of any manufacturing changes, a determination needs to be made regarding whether FDA approval is required in advance. If not done in accordance with FDA expectations, the FDA may restrict supply and may take further action. Product reports are required to be submitted annually. Other post-approval requirements applicable to biological products include reporting of cGMP deviations that may affect the identity, potency, purity, and overall safety of a distributed product, recordkeeping requirements, reporting of adverse events, reporting updated safety and efficacy information, and complying with electronic record and signature requirements.

After a BLA is approved, the product also may be subject to official lot release. As part of the manufacturing process, the manufacturer is required to perform certain tests on each lot of the product before it is released for distribution. If the product is subject to official release by the FDA, the manufacturer submits samples of each lot of product to the FDA together with a release protocol showing a summary of the history of manufacture of the lot and the results of all of the manufacturer’s tests performed on the lot. The FDA also may perform certain confirmatory tests on lots of some products, such as viral vaccines, before releasing the lots for distribution by the manufacturer. In addition, the FDA may conduct laboratory research related to the regulatory standards on the safety, purity, potency, and effectiveness of biological products. Systems need to be put in place to record and evaluate adverse events reported by health care providers and patients and to assess product complaints. An increase in severity or new adverse events can result in labeling changes or product recall. Defects in manufacturing of commercial products can result in product recalls.

We also must comply with the FDA’s advertising and promotion requirements, such as those related to direct-to-consumer advertising, the prohibition on promoting products for uses or inpatient populations that are not described in the product’s approved labeling (known as “off-label use”), industry-sponsored scientific and educational activities, and promotional activities involving the internet. Discovery of previously unknown problems or the failure to comply with the applicable regulatory requirements may result in restrictions on the marketing of a product or withdrawal of the product from the market as well as possible civil or criminal sanctions. Failure to comply with the applicable U.S. requirements at any time during the product development process, approval process, or after approval may subject an applicant or manufacturer to administrative or judicial civil or criminal sanctions and adverse publicity. FDA sanctions could include refusal to approve pending applications, withdrawal of an approval or license revocation, clinical hold, warning or untitled letters, product recalls, product seizures, total or partial suspension of production or distribution, injunctions, fines, refusals of government contracts, mandated corrective advertising or communications with doctors, debarment, restitution, disgorgement of profits, or civil or criminal penalties. Any agency or judicial enforcement action could have a material adverse effect.

Biological product manufacturers and other entities involved in the manufacture and distribution of approved biological products are required to register their establishments with the FDA and certain state agencies, and they are subject to periodic unannounced inspections by the FDA and certain state agencies for compliance with cGMPs and other laws. Accordingly, manufacturers must continue to expend time, money, and effort in the areas of production and quality control to maintain cGMP compliance. Manufacturers and other parties involved in the drug supply chain for prescription drug products must also comply with product tracking and tracing requirements and for notifying the FDA of counterfeit, diverted, stolen and intentionally adulterated products or products that are otherwise unfit for distribution in the United States. Discovery of problems with a product after approval may result in restrictions on a product, manufacturer, or holder of an approved BLA, including withdrawal of the product from the market. In addition, changes to the manufacturing process or facility generally require prior FDA approval before being implemented, and other types of changes to the approved product, such as adding new indications and additional labeling claims, are also subject to further FDA review and approval.

Orphan Drug Designation

Under the Orphan Drug Act, the FDA may grant orphan drug designation (“ODD”), to a biological product intended to treat a rare disease or condition, which is generally a disease or condition that affects fewer than 200,000 individuals in the United States, or more than 200,000 individuals in the United States and for which there is no reasonable expectation that the cost of developing and making a biological product available in the United States for this type of disease or condition will be recovered from sales of the product. ODD must be requested before submitting a BLA. After the FDA grants ODD, the identity of the therapeutic agent and its potential orphan use are disclosed publicly by the FDA. ODD does not convey any advantage in or shorten the duration of the regulatory review and approval process.

If a product that has ODD receives the first FDA approval for the disease or condition for which it has such designation, the product is entitled to orphan product exclusivity, which means that the FDA may not approve any other applications to market the same biological product for the same indication for seven years, except in limited circumstances, such as not being able to supply the product for patients or showing clinical superiority to the product with orphan exclusivity.

Competitors, however, may receive approval of different products for the indication for which the orphan product has exclusivity or obtain approval for the same product but for a different indication for which the orphan product has exclusivity. Orphan product exclusivity also could block the approval of one of our products for seven years if a competitor obtains approval of the same biological product as defined by the FDA or if our product candidate is determined to be contained within the competitor’s product for the same indication or disease. If a biological product designated as an orphan product receives marketing approval for an indication broader than what is designated, it may not be entitled to orphan product exclusivity.

Expedited Review and Approval Programs

The FDA has various programs, including fast track designation, priority review, accelerated approval, and breakthrough therapy designation, that are intended to expedite or simplify the process for the development and FDA review of biological products that are intended for the treatment of serious or life-threatening diseases or conditions and demonstrate the potential to address unmet medical needs. The purpose of these programs is to provide important new biological products to patients earlier than under standard FDA review procedures. To be eligible for a fast track designation, the FDA must determine, based on the request of a sponsor, that a biological product is intended to treat a serious or life-threatening disease or condition and demonstrates the potential to address an unmet medical need. The FDA will determine that a product will fill an unmet medical need if it will provide a therapy where none exists or provide a therapy that may be potentially superior to existing therapy based on efficacy or safety factors. In addition to other benefits, such as the ability to have greater interactions with the FDA, the FDA may initiate review of sections of a fast track BLA before the application is complete, a process known as rolling review.

The FDA may give a priority review designation, such as a rare pediatric disease designation, to biological products that treat a serious condition and, if approved, would provide a significant improvement in safety or effectiveness. A priority review means that the goal for the FDA to review an application is six months, rather than the standard review of ten months under current PDUFA guidelines. Most products that are eligible for fast track designation may also be considered appropriate to receive a priority review. In addition, biological products studied for their safety and effectiveness in treating serious or life-threatening illnesses and that provide meaningful therapeutic benefit over existing treatments may receive accelerated approval and may be approved on the basis of adequate and well-controlled clinical trials establishing that the biological product has an effect on a surrogate endpoint that is reasonably likely to predict clinical benefit, or on a clinical endpoint that can be measured earlier than irreversible morbidity or mortality, that is reasonably likely to predict an effect on irreversible morbidity or mortality or other clinical benefit, taking into account the severity, rarity, or prevalence of the condition and the availability or lack of alternative treatments. As a condition of approval, the FDA may require a sponsor of a biological product receiving accelerated approval to perform adequate and well-controlled post-marketing studies to verify and describe the predicted effect on irreversible morbidity or mortality or other clinical endpoint. Under the Food and Drug Omnibus Reform Act of 2022 (“FDORA”), the FDA may require, as appropriate, that such trials be underway prior to approval or within a specific time period after the date of approval for a product granted accelerated approval.

Under FDORA, the FDA has increased authority for expedited procedures to withdraw approval of a drug or indication approved under accelerated approval if, for example, the confirmatory trial fails to verify the predicted clinical benefit of the product. In addition, for products being considered for accelerated approval, the FDA generally requires, unless otherwise informed by the agency, that all advertising and promotional materials intended for dissemination or publication within 120 days of marketing approval be submitted to the agency for review during the pre-approval review period.

Moreover, a sponsor can request designation of a product candidate as a “breakthrough therapy.” A breakthrough therapy is defined as a drug or biological product that is intended, alone or in combination with one or more other drugs or biologics, to treat a serious or life-threatening disease or condition, and preliminary clinical evidence indicates that the drug or biological product may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints, such as substantial treatment effects observed early in clinical development. Drug and biological products designated as breakthrough therapies are also eligible for accelerated approval. The FDA must take certain actions, such as holding timely meetings and providing advice, intended to expedite the development and review of an application for approval of a breakthrough therapy.

Even if a product qualifies for one or more of these programs, the FDA may later decide that the product no longer meets the conditions for qualification or decides that the time period for FDA review or approval will not be shortened. Furthermore, fast-track designation, priority review, accelerated approval, and breakthrough therapy designation do not change the standards for approval and may not ultimately expedite the development or approval process.

Biologics Price Competition and Innovation Act

The Biologics Price Competition and Innovation Act of 2009 (“BPCIA”), which was enacted as part of the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010 (collectively, the “Affordable Care Act”), created an abbreviated approval pathway for biological products that are demonstrated to be “biosimilar” or “interchangeable” with an FDA-licensed reference biological product via an approved BLA. Biosimilarity to an approved reference product requires that there be no differences in conditions of use, route of administration, dosage form, and strength, and no clinically meaningful differences between the biological product and the reference product in terms of safety, purity, and potency. Biosimilarity is demonstrated in steps beginning with rigorous analytical studies or “fingerprinting”, in vitro studies, in vivo animal studies, and generally at least one clinical study. If at any point in the stepwise biosimilarity process a significant difference is observed, then the products are not biosimilar, and the development of a standalone BLA is necessary. In order to meet the higher hurdle of interchangeability, a sponsor must demonstrate that the biosimilar product can be expected to produce the same clinical result as the reference product, and for a product that is administered more than once, that the risk of switching between the reference product and biosimilar product is not greater than the risk of maintaining the patient on the reference product. Complexities associated with the larger, and often more complex, structures of biological products, as well as the process by which such products are manufactured, pose significant hurdles to implementation that are still being evaluated by the FDA. Under the BPCIA, a reference biologic is granted 12 years of exclusivity from the time of first licensure of the reference product.

Regulation Outside of the United States

In addition to regulations in the United States, we are subject to a variety of regulations in other jurisdictions governing clinical studies, commercial sales, and distribution of our products. Most countries outside of the United States require that clinical trial authorization applications be submitted to and approved by the local regulatory authority for each clinical study. In the European Union, for example, an application must be submitted to the national competent authority and an independent ethics committee in each country in which we intend to conduct clinical trials, much like the FDA and IRB, respectively. Under the Clinical Trials Regulation (EU) No 536/2014, which replaced the Clinical Trials Directive 2001/20/EC on January 31, 2022, a single application is now made through the Clinical Trials Information System for clinical trial authorization in up to 30 EU/EEA countries at the same time and with a single set of documentation.

The assessment of applications for clinical trials is divided into two parts (Part I contains scientific and medicinal product documentation and Part II contains the national and patient-level documentation). Part I is assessed by a coordinated review by the competent authorities of all European Union member states in which an application for authorization of a clinical trial has been submitted (Member States concerned) of a draft report prepared by a reference Member State. Part II is assessed separately by each Member State concerned. The role of the relevant ethics committees in the assessment procedure continues to be governed by the national law of the Member State concerned, however overall related timelines are defined by the Clinical Trials Regulation. The Clinical Trials Regulation also provides for simplified reporting procedures for clinical trial sponsors.

In addition, whether or not we obtain FDA approval for a product, we must obtain approval of a product by the comparable regulatory authorities of countries outside the United States before we can commence marketing of the product in those countries. The approval process and requirements vary from country to country, so the number and type of nonclinical, clinical, and manufacturing studies needed may differ, and the time may be longer or shorter than that required for FDA approval.

To obtain regulatory approval of our medicinal products under the European Union regulatory system, we are required to submit a marketing authorization application (“MAA”), to be assessed in the centralized procedure. The centralized procedure allows applicants to obtain a marketing authorization (“MA”) that is valid throughout the European Union, and the additional countries of the European Economic Area (Iceland, Liechtenstein and Norway) (“EEA”). It is compulsory for medicinal products manufactured using biotechnological processes, orphan medicinal products, advanced therapy medicinal products (gene-therapy, somatic cell-therapy or tissue-engineered medicines) and medicinal products containing a new active substance which is not authorized in the European Union and which is intended for the treatment of HIV, AIDS, cancer, neurodegenerative disorders, auto-immune and other immune dysfunctions, viral diseases or diabetes. The centralized procedure is optional for any other products containing new active substances not authorized in the European Union or for products which constitute a significant therapeutic, scientific, or technical innovation or for which a centralized authorization is in the interests of public health at European Union level. When a company wishes to place on the market a medicinal product that is eligible for the centralized procedure, it sends an application directly to the EMA, to be assessed by the Committee for Medicinal Products for Human Use (“CHMP”). The CHMP is responsible for conducting the assessment of whether a medicine meets the required quality, safety, and efficacy requirements, and whether the product has a positive risk/benefit profile. The time limit for the evaluation procedure is 210 days (excluding clock stops, when additional written or oral information is to be provided by the applicant in response to questions asked by the CHMP). The EMA then has fifteen days to forward its opinion to the European Commission, which will make a binding decision on the grant of an MA within 67 days of the receipt of the CHMP opinion.

National marketing authorizations, which are issued by the competent authorities of the Member States of the European Union and only cover their respective territory, are available for products not falling within the mandatory scope of the centralized procedure. Where a product has already been authorized for marketing in a Member State of the European Union, this national authorization can be recognized in other Member States through the mutual recognition procedure. If the product has not received a national authorization in any Member State at the time of application, it can be approved simultaneously in various Member States through the decentralized procedure.

In the European Union, new active substances (including both small molecules and biological medicinal products) approved on the basis of a complete and independent data package qualify for eight years of data exclusivity upon marketing authorization and an additional two years of market exclusivity. Data exclusivity prevents generic or biosimilar applicants from referencing the innovator’s preclinical and clinical trial data contained in the dossier of the reference product when applying for a generic or biosimilar MA, for a period of eight years from the date on which the reference product was first authorized in the European Union. During the additional two-year period of market exclusivity, a generic or biosimilar MAA can be submitted, and the innovator’s data may be referenced, but no generic or biosimilar medicinal product can be marketed until the expiration of the market exclusivity. The overall ten-year period will be extended to a maximum of eleven years if, during the first eight years of those ten years, the MA holder obtains an authorization for one or more new therapeutic indications which, during the scientific evaluation prior to authorization, is held to bring a significant clinical benefit in comparison with currently approved therapies. There is no guarantee that a product will be considered by the EMA to be a new active substance, and products may not qualify for data exclusivity. Even if the innovator gains the prescribed period of data exclusivity, another company could nevertheless also market another version of the product if such company obtained an MA based on an MAA with a complete and independent data package of pharmaceutical tests, preclinical tests and clinical trials.

The criteria for designating an “orphan medicinal product” in the European Union are similar in principle to those in the United States. Under Article 3 of Regulation (EC) 141/2000, a medicinal product may be designated as an orphan medicinal product if it is intended for the diagnosis, prevention, or treatment of a life-threatening or chronically debilitating condition that affects no more than five in 10,000 persons in the European Union when the application is made. In addition, orphan designation can be granted if the product is intended for a life threatening, seriously debilitating, or serious and chronic condition in the European Union and, without incentives, it is unlikely that sales of the product in the European Union would be sufficient to justify the necessary investment in its development. Orphan designation is only available if there is no other satisfactory method approved in the European Union of diagnosing, preventing, or treating the applicable orphan condition, or if such a method exists, the proposed orphan medicinal product will be of significant benefit to patients affected by such condition, as defined in Regulation (EC) 847/2000.

Orphan designation provides opportunities for fee reductions, protocol assistance, and access to the centralized procedure. Fee reductions are limited to the first year after an MA is granted, except for small and medium enterprises. In addition, if a product which has an orphan designation subsequently receives a centralized MA for the indication for which it has such designation, the product is entitled to orphan market exclusivity, which means the EMA may not approve any other application to market a similar medicinal product for the same indication as the authorized orphan product for a period of ten years. A “similar medicinal product” is defined as a medicinal product containing a similar active substance or substances as contained in an authorized orphan medicinal product, and which is intended for the same therapeutic indication. The exclusivity period may be reduced to six years if, at the end of the fifth year, it is shown that the designation criteria are no longer met, including where it is shown that the product is sufficiently profitable not to justify maintenance of market exclusivity. Additionally, an MA may be granted to a similar medicinal product for the same indication as an authorized orphan product at any time if:

A pediatric investigation plan (“PIP”) in the European Union is aimed at ensuring that the necessary data are obtained to support the authorization of a medicine for children, through studies in children. All applications for MAs for new medicines have to include the results of studies as described in an agreed PIP, unless the medicine is exempt because of a deferral or waiver. This requirement also applies when an MA holder wants to add a new indication, pharmaceutical form, or route of administration for a medicine that is already authorized and covered by intellectual property rights. Several rewards and incentives for the development of pediatric medicines for children are available in the European Union. Medicines authorized across the European Union with the results of studies from a PIP included in the product information are eligible for an extension of their supplementary protection certificate (“SPC”) by six months (provided an application for such extension is made at the same time as filing the SPC application for the product, or at any point up to two years before the SPC expires). This is the case even when the studies’ results are negative. For orphan medicinal products, the incentive is an additional two years of market exclusivity. Scientific advice and protocol assistance at the EMA are free of charge for questions relating to the development of pediatric medicines. Medicines developed specifically for children that are already authorized but are not protected by a patent or supplementary protection certificate are eligible for a pediatric-use MA (“PUMA”). If a PUMA is granted, the product will benefit from ten years of market protection as an incentive.

In March 2016, the EMA launched an initiative, the PRIority MEdicines (“PRIME”) scheme, to facilitate development of product candidates in indications, often rare, for which few or no therapies currently exist. The PRIME scheme is intended to encourage development of products in areas of unmet medical need and provides accelerated assessment of products representing substantial innovation reviewed under the centralized procedure. Products from small- and medium-sized enterprises may qualify for earlier entry into the PRIME scheme than larger companies on the basis of compelling non-clinical data and tolerability data from initial clinical trials. Many benefits accrue to sponsors of product candidates with PRIME designation, including but not limited to, early and proactive regulatory dialogue with the EMA, frequent discussions on clinical trial designs and other development program elements, and potentially accelerated MAA assessment once a dossier has been submitted. Importantly, once a candidate medicine has been selected for the PRIME scheme, a dedicated contact and rapporteur from the CHMP or from the Committee for Advanced Therapies (“CAT”) are appointed early in the PRIME scheme facilitating increased understanding of the product at the EMA’s committee level. An initial meeting with the CHMP/CAT rapporteur initiates these relationships and includes a team of multidisciplinary experts at the EMA to provide guidance on the overall development and regulatory strategies. PRIME eligibility does not change the standards for product approval, and there is no assurance that any such designation or eligibility will result in expedited review or approval.

The aforementioned European Union rules are generally applicable in the EEA.

The European Commission introduced legislative proposals in April 2023 that, if implemented, will replace the current regulatory framework in the European Union for all medicines (including those for rare diseases and for children). The European Commission has provided the legislative proposals to the European Parliament and the European Council for their review and approval, and, in April 2024, the European Parliament proposed amendments to the legislative proposals. Once the European Commission’s legislative proposals are approved (with or without amendment), they will be adopted into EU law.

The United Kingdom left the European Union on January 31, 2020. As a result of the Northern Ireland protocol, following Brexit, the EMA remained responsible for approving novel medicines for supply in Northern Ireland under the EU centralized procedure, and a separate authorization was required to supply the same medicine in Great Britain (England, Wales and Scotland). On February 27, 2023, the United Kingdom government and the European Commission announced a political agreement in principle to replace the Northern Ireland Protocol with a new set of arrangements, known as the “Windsor Framework”. The Windsor Framework was approved by the EU-UK Joint Committee on March 24, 2023, and the medicines aspects of the Windsor Framework have applied since January 1, 2025. This new framework fundamentally changes the previous system under the Northern Ireland Protocol, including with respect to the regulation of medicinal products in the United Kingdom. In particular, the MHRA is now responsible for approving all medicinal products destined for the United Kingdom market (i.e., Great Britain and Northern Ireland), and the EMA no longer has any role in approving medicinal products destined for Northern Ireland under the European Union centralized procedure. A single United Kingdom-wide MA will be granted by the MHRA for all novel medicinal products to be sold in the United Kingdom, enabling products to be sold in a single pack and under a single authorization throughout the United Kingdom. In addition, the new arrangements require all medicines placed on the UK market to be labelled “UK only”, indicating they are not for sale in the European Union.

The MHRA has introduced changes to national licensing procedures, including procedures to prioritize access to new medicines that will benefit patients, an accelerated assessment procedure and new routes of evaluation for novel products and biotechnological products. On January 1, 2024, the MHRA put in place an international recognition framework under which the MHRA may have regard to decisions on the approval of MAs made by the EMA and certain other regulators when determining an application for a new Great Britain MA.

There is now no pre-MA orphan designation in the UK. Instead, the MHRA reviews applications for orphan designation in parallel to the corresponding MAA. The criteria are essentially the same, but have been tailored for the UK market, i.e., the prevalence of the condition in UK (rather than the European Union) must not be more than five in 10,000. Should an orphan designation be granted, the period or market exclusivity will be set from the date of first approval of the product in the UK.

Healthcare Laws and Regulations

Sales of our product candidate, if approved, or any other future product candidate, will be subject to healthcare regulation and enforcement by the federal government and the states and foreign governments in which we might conduct our business. The healthcare laws and regulations that may affect our ability to operate include the following:

Many states have similar laws and regulations, such as anti-kickback and false claims laws, that may be broader in scope and may apply regardless of payor, in addition to items and services reimbursed under Medicaid and other state programs. Additionally, we may be subject to state laws that require pharmaceutical companies to comply with the federal government’s and/or pharmaceutical industry’s voluntary compliance guidelines, state laws that require drug and biologics manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketing expenditures, as well as state and foreign laws governing the privacy and security of health information, many of which differ from each other in significant ways and often are not preempted by HIPAA. Additionally, to the extent that our product is sold in a foreign country, we may be subject to similar foreign laws.

Pharmaceutical Coverage, Pricing and Reimbursement

Significant uncertainty exists as to the coverage and reimbursement status of any product candidates for which we obtain regulatory approval. In the United States and markets in other countries, sales of any products for which we receive regulatory approval for commercial sale will depend, in part, on the extent to which third-party payors provide coverage, and establish adequate reimbursement levels for such drug products. In the United States, third-party payors include federal and state healthcare programs, government authorities, private managed care providers, private health insurers and other organizations.

Third-party payors are increasingly challenging the price, examining the medical necessity and reviewing the cost-effectiveness of medical drug products and medical services, in addition to questioning their safety and efficacy. Such payors may limit coverage to specific drug products on an approved list, also known as a formulary, which might not include all of the FDA-approved drugs for a particular indication. We may need to conduct expensive pharmaco-economic studies in order to demonstrate the medical necessity and cost-effectiveness of our products, in addition to the costs required to obtain the FDA approvals. Nonetheless, our product candidates may not be considered medically necessary or cost-effective. Moreover, the process for determining whether a third-party payor will provide coverage for a drug product may be separate from the process for setting the price of a drug product or for establishing the reimbursement rate that such a payor will pay for the drug product. A payor’s decision to provide coverage for a drug product does not imply that an adequate reimbursement rate will be approved. Further, one payor’s determination to provide coverage for a drug product does not assure that other payors will also provide coverage for the drug product. Adequate third-party reimbursement may not be available to enable us to maintain price levels sufficient to realize an appropriate return on our investment in product development.

The marketability of any product candidates for which we receive regulatory approval for commercial sale may suffer if the government and third-party payors fail to provide adequate coverage and reimbursement. In addition, emphasis on managed care in the United States has increased and could increase the pressure on pharmaceutical pricing. Coverage policies and third-party reimbursement rates may change at any time. Even if favorable coverage and reimbursement status is attained for one or more products for which we receive regulatory approval, less favorable coverage policies and reimbursement rates may be implemented in the future.

Healthcare Reform

The United States and many foreign jurisdictions have enacted or proposed legislative and regulatory changes affecting the healthcare system. The United States government, state legislatures and foreign governments also have shown significant interest in implementing cost-containment programs to limit the growth of government-paid healthcare costs, including price controls, restrictions on reimbursement, and requirements for substitution of generic products for branded prescription drugs and biologics. In recent years, Congress has considered reductions in Medicare reimbursement levels for drugs and biologics administered by physicians. CMS, the agency that administers the Medicare and Medicaid programs, also has authority to revise reimbursement rates and to implement coverage restrictions for some drugs and biologics. Cost reduction initiatives and changes in coverage implemented through legislation or regulation could decrease utilization of and reimbursement for any approved products. While Medicare regulations apply only to drug benefits for Medicare beneficiaries, private payors often follow Medicare coverage policy and payment limitations in setting their own reimbursement rates. Therefore, any reduction in reimbursement that results from federal legislation or regulation may result in a similar reduction in payments from private payors.

The Affordable Care Act substantially changed the way healthcare is financed by both governmental and private insurers, and significantly impacts the pharmaceutical industry. The Affordable Care Act is intended to broaden access to health insurance, reduce or constrain the growth of healthcare spending, enhance remedies against healthcare fraud and abuse, add new transparency requirements for healthcare and health insurance industries, impose new taxes and fees on pharmaceutical and medical device manufacturers, and impose additional health policy reforms. Among other things, the Affordable Care Act expanded manufacturers’ rebate liability under the Medicaid Drug Rebate Program by increasing the minimum Medicaid rebate for both branded and generic drugs and biologics, expanded the 340B program, and revised the definition of average manufacturer price (“AMP”), which could increase the amount of Medicaid drug rebates manufacturers are required to pay to states. The legislation also extended Medicaid drug rebates, previously due only on fee-for-service Medicaid utilization, to include the utilization of Medicaid managed care organizations as well and created an alternative rebate formula for certain new formulations of certain existing products that is intended to increase the amount of rebates due on those drugs.

Other legislative changes have been proposed and adopted since passage of the Affordable Care Act. The Budget Control Act of 2011, among other things, included automatic reductions to several government programs, including aggregate reductions to Medicare payments to healthcare providers of up to 2.0% per fiscal year, which remain in effect through 2031. The American Taxpayer Relief Act of 2012, among other things, reduced Medicare payments to several types of providers, including hospitals, imaging centers and cancer treatment centers, and increased the statute of limitations period for the government to recover overpayments to providers from three to five years.

There have been executive, judicial and congressional challenges to the Affordable Care Act. We cannot predict what additional challenges to the Affordable Care Act may arise in the future, the outcome thereof, or the impact any such actions may have on our business. Additionally, the Biden administration has introduced various measures in recent years, focusing on healthcare and medical-product pricing, in particular. It remains to be seen how these measures will affect our business and there is uncertainty as to what other healthcare programs and regulations may be implemented or changed at the federal and/or state level in the U.S., but it is possible that such initiatives could have an adverse effect on our ability to obtain FDA approval or clearance and/or successfully commercialize products in the U.S. in the future. For example, any changes that reduce, or impede the ability of healthcare providers to obtain reimbursement for medical procedures in which the products we currently, or intend to, commercialize are used, or that reduce medical procedure volumes, could adversely affect our operations and/or future business plans. The financial impact of U.S. healthcare reform legislation over the next few years will depend on a number of factors, including the policies reflected in implementing regulations and guidance and changes in sales volumes for medical devices affected by the legislation. From time to time, legislation is drafted, introduced, and passed that could significantly change the statutory provisions governing coverage, reimbursement, pricing, and marketing of medical device products. In addition, third-party payor coverage and reimbursement policies are often revised or interpreted in ways that may significantly affect our business and our products.

Further legislative and regulatory changes under the Affordable Care Act remain possible, and it is unknown what form any such changes or any law would take, and how or whether it may affect our business in the future. We expect that changes or additions to the Affordable Care Act, the Medicare and Medicaid programs, changes allowing the federal government to directly negotiate drug prices, and changes stemming from other healthcare reform measures, especially with regard to healthcare access, financing or other legislation in individual states, could have a material adverse effect on the healthcare industry.

The Affordable Care Act requires pharmaceutical manufacturers to provide a 50% discount (increased by subsequent legislation to a 70% discount) off the negotiated price of prescriptions filled by beneficiaries in the Medicare Part D coverage gap, referred to as the “donut hole.” The Inflation Reduction Act of 2022 (“IRA”) includes provisions that reduce the out-of-pocket spending cap for Medicare Part D beneficiaries from $7,050 to $2,000 starting in 2025, thereby effectively eliminating the donut hole. The IRA also requires pharmaceutical manufacturers to provide a 10% discount of all biosimilar and brand name prescription drugs covered under the Medicare Part D plan benefit during the initial coverage period before the beneficiary reaches the $2,000 out-of-pocket spending cap. Once the patient reaches the out-of-pocket spending cap, they enter catastrophic coverage and drug manufacturer liability for biosimilar and brand name drugs increases to 20%. Furthermore, the IRA allows the U.S. government to negotiate Medicare Part B and Part D price caps for certain high-cost drugs and biologics without generic or biosimilar competition; requires companies to pay rebates to Medicare for certain drug prices that increase faster than inflation; and delays until January 1, 2032 the implementation of a U.S. Department of Health and Human Service (“HHS”) rebate rule that would have limited the fees that pharmacy benefit managers can charge.

The Affordable Care Act also expanded the Public Health Service’s 340B drug pricing program, which requires participating manufacturers to agree to charge statutorily defined covered entities no more than the 340B “ceiling price” for the manufacturer’s covered outpatient drugs. The Affordable Care Act expanded the 340B program to include additional types of covered entities: certain freestanding cancer hospitals, critical access hospitals, rural referral centers, and sole community hospitals, each as defined by the Affordable Care Act. Because the 340B ceiling price is determined based on AMP and Medicaid drug rebate data, revisions to the Medicaid rebate formula and AMP definition could cause the required 340B discounts to increase.

The American Rescue Plan Act of 2021 eliminated the statutory Medicaid drug rebate cap, previously set at 100% of a drug’s AMP, for single source and innovator multiple source drugs, beginning January 1, 2024. Payment methodologies may be subject to changes in healthcare legislation and regulatory initiatives as well. For example, CMS may develop new payment and delivery models, such as bundled payment models.

Recently, there has been heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products. Such scrutiny has resulted in several recent U.S. Congressional inquiries and proposed and enacted federal and state legislation designed to, among other things, bring more transparency to drug pricing, review the relationship between pricing and manufacturer patient programs, reduce the cost of drugs under Medicare, and reform government program reimbursement methodologies for pharmaceutical products.

At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access, and marketing cost disclosure and transparency measures, and in some cases, designed to encourage importation from other countries and bulk purchasing.

We expect that additional federal, state, and foreign healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in limited coverage and reimbursement and reduced demand for our products, once approved, or additional pricing pressures.

Employees and Human Capital Resources

As of April 8, 2025, we had eight full-time employees, including two executive officers and six employees conducting Research and Development. Our employees are not represented by labor unions or covered by collective bargaining agreements and we consider our relationship with our employees to be good.

Compensation and Benefits

Our employee-related objectives include, as applicable, identifying, recruiting, retaining, and incentivizing our management team and our clinical, scientific and other employees and consultants. The principal purposes of our equity and cash incentive plans are to attract, retain and motivate personnel through the granting of stock-based and cash-based compensation awards, in order to align our interests and the interests of our stockholders with those of our employees and consultants. In addition, all of our employees are eligible for health insurance, paid and unpaid leaves including paid parental leave, a retirement plan, life and disability/accident coverage, and parking or commuter assistance and an employee assistance.

Corporate Information

We were incorporated under the laws of the state of Delaware on October 2, 2020 under the name Phoenix Biotech Acquisition Corporation. Legacy CERo was incorporated under the laws of the state of Delaware on September 23, 2016. On February 14, 2024, we consummated a merger with Legacy CERo and subsequently changed our name to “CERo Therapeutics Holdings, Inc.” Our corporate headquarters are currently located at 210 Haskins Way, Suite 230, South San Francisco, California 94080, and our telephone number is (650) 407-2376. Our website is www.cero.bio. The information on our website is not incorporated by reference in this filing or in any other filings we make with the SEC.

Available Information

Our internet address is www.cero.bio. Our investor relations website is located at www.cero.bio/investors. We make available free of charge on our investor relations website under “SEC Filings” our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, our directors’ and officers’ Section 16 reports and any amendments to those reports as soon as reasonably practicable after filing or furnishing such materials to the SEC. They are also available for free on the SEC’s website at www.sec.gov.

We use our investor relations website as a means of disclosing material non-public information and for complying with our disclosure obligations under Regulation FD. Investors should monitor such website, in addition to following our press releases, SEC filings and public conference calls and webcasts. Information relating to our corporate governance is also included on our investor relations website. The information in or accessible through the SEC and our website are not incorporated into, and are not considered part of, this filing.

Item 1A. Risk Factors.

In evaluating our business, careful consideration should be given to the following risk factors, in addition to the other information set forth in this Annual Report and in other documents that we file with the SEC. An investment in our securities involves a high degree of risk. You should carefully consider the risks described below before making an investment decision. Our business, prospects, financial condition or operating results could be harmed by any of these risks, as well as other risks not currently known to us or that we currently consider immaterial. The trading price of our securities could decline due to any of these risks, and, as a result, you may lose all or part of your investment. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also impair our business operations. This Annual Report also contains forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in the forward-looking statements as a result of a number of factors, including the risks described below. Certain statements in this “Risk Factors” section are forward-looking statements. See “Cautionary Note Regarding Forward-Looking Statements.”

Risks Related to our Business and Industry

We have incurred significant losses in every year since our inception. We expect to continue to incur losses over the next several years and may never achieve or maintain profitability.

We are a clinical stage biopharmaceutical company with a limited operating history, and we have incurred significant net losses since our inception in 2016. We incurred net losses of approximately $8.3 million and $7.3 million for the years ended December 31, 2024 and 2023, respectively. As of December 31, 2024, we had an accumulated deficit of approximately $70.9 million. We have funded our operations to date primarily with proceeds from the sale of our equity securities in private financing transactions.

We have no products approved for commercial sale and we are devoting, and expect to continue devoting, substantially all of our financial resources and efforts to R&D of our only programmed CER-T cell product candidate, CER-1236, as well as to building out our manufacturing infrastructure, CDMO relationships and CER-T cell programming technologies. Investment in biopharmaceutical product development, especially preclinical products, is highly speculative because it entails substantial upfront capital expenditures and significant risk that any potential product candidate will not successfully undergo or complete necessary clinical trials, fail to demonstrate adequate effect or an acceptable safety profile, gain regulatory approval and become commercially viable.

We expect that it could take several years until any of our product candidates, which at present is solely CER-1236, receive regulatory and marketing approval and are commercialized, and we may never be successful in obtaining regulatory and marketing approval and commercializing product candidates. We expect to continue to incur significant expenses and increasing operating losses for the foreseeable future. These net losses will adversely impact our stockholders’ equity and net assets and may fluctuate significantly from quarter to quarter and year to year. We anticipate that our expenses will increase substantially as we:

To become and remain profitable, we must succeed in developing and eventually commercializing products that generate significant revenue. This will require us to be successful in a range of challenging activities, including completing preclinical studies and clinical trials for our product candidates, preparing a satisfactory filing package for regulatory authorities, obtaining regulatory approval, manufacturing, marketing and selling any products for which we may obtain regulatory approval, as well as discovering and developing additional product candidates. We may never succeed in these activities and, even if we do, may never generate revenues that are significant enough to achieve profitability.

Because of the numerous risks and uncertainties associated with the development, manufacturing, delivery and commercialization of complex autologous cell therapies, we are unable to accurately predict the timing or amount of expenses or when, or if, we will be able to achieve profitability. If we are required by regulatory authorities to perform studies in addition to those currently expected, or if there are any delays in the initiation and completion of our clinical trials or the development of any of our product candidates, our expenses could increase and profitability could be further delayed.

Even if we achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. Our failure to become and remain profitable would depress the value of our securities and could impair our ability to raise capital, expand our business, maintain our R&D efforts or continue our operations. A decline in the value of our securities could also cause you to lose all or part of your investment.

There is substantial doubt as to our ability to continue as a going concern.

As of December 31, 2024, the Company reported $3.3 million of cash and cash equivalents, with an accumulated deficit of $70.9 million. Additional funds are necessary to maintain current operations and to continue R&D activities. However, there can be no assurance that sufficient funding will be available to allow the Company to successfully continue its R&D activities and planned regulatory filings with the FDA. If the Company is unable to obtain the necessary funds, significant reductions in spending and the delay or cancellation of planned activities may be necessary. These actions would have a material adverse effect on the Company’s business, results of operations, and prospects. These conditions raise substantial doubt about the Company’s ability to continue as a going concern within one year from the date these accompanying financial statements are issued. In its report on our financial statements for the year ended December 31, 2024, our independent registered public accounting firm included an explanatory paragraph that expressed substantial doubt about our ability to continue as a going concern. Our current cash level raises substantial doubt about our ability to continue as a going concern. In addition, our future financial statements may include similar qualifications about our ability to continue as a going concern. Our financial statements were prepared assuming that we will continue as a going concern and do not include any adjustments that may result from the outcome of this uncertainty. If we are unable to meet our current operating costs, we will need to seek additional financing or modify or cease our operational plans. If we seek additional financing to fund our business activities in the future and there remains substantial doubt about our ability to continue as a going concern, investors or other financing sources may be unwilling to provide additional funding to us on commercially reasonable terms or at all.

Our limited operating history makes it difficult to evaluate our business and assess our future viability and prospects.

We are a clinical stage company with a limited operating history. We commenced operations in 2016, and our operations to date have been limited to organizing and planning our development efforts, raising capital, conducting discovery and research activities, filing patent applications, identifying potential product candidates, undertaking preclinical studies, and establishing arrangements with third parties for the manufacture of initial quantities of CER-1236 and component materials. We have not yet demonstrated our ability to successfully complete any clinical trials, obtain regulatory approvals, manufacture a commercial-scale product or arrange for a third party to do so on our behalf, or conduct sales, marketing and distribution activities necessary for successful product commercialization. Consequently, any predictions you make about our future success or viability may not be as accurate as they could be if we had a longer operating history.

In addition, as a young business, we may encounter unforeseen expenses, difficulties, complications, delays and other known and unknown factors. We will need to transition at some point from a company with a R&D focus to a company capable of supporting commercial activities. We may not be successful in such a transition.

We expect our financial condition and operating results to continue to fluctuate significantly from quarter to quarter and year to year due to a variety of factors, many of which are beyond our control. Accordingly, you should not rely upon the results of any quarterly or annual periods as indications of future operating performance.

Our business is highly dependent on the success of our lead product candidate. If we are unable to advance clinical development, obtain approval of and successfully commercialize our lead product candidate for the treatment of patients in approved indications, our business would be significantly harmed.

Our business and future success depends on our ability to advance clinical development, obtain regulatory approval of, and then successfully commercialize, CER-1236, our lead product candidate. Because our CER-1236 product candidate will be among the first autologous T cell product candidates engineered with cytotoxic and phagocytic potency to be evaluated in clinical trials, the failure of such product candidate, or the failure of other autologous T cell therapies, including for reasons due to safety, efficacy or durability, may impede our ability to develop our product candidates, and significantly influence physicians’ and regulators’ opinions with regard to the viability of our entire pipeline of autologous T cell therapies.

All of our product candidates, including our lead product candidate, will require additional preclinical, clinical and non-clinical development, regulatory review and approval in multiple jurisdictions, substantial investment, access to sufficient commercial manufacturing capacity and significant marketing efforts before we can generate any revenue from product sales. In addition, because our other product candidates are based on similar technology as our lead product candidate, if the lead product candidate encounters additional safety issues, efficacy problems, manufacturing problems, developmental delays, regulatory issues or other problems, our development plans and business would be significantly harmed.

We have not generated any revenue and may never be profitable.

Our ability to become profitable depends upon our ability to generate revenue. To date, we have not generated any revenue. We do not expect to generate significant revenue unless or until we successfully complete clinical development and obtain regulatory approval of, and then successfully commercialize, our product candidates. We do not know when, or if, we will generate any revenue. We received clearance of our IND for our first product candidate, CER-1236, and the rest of our product candidates are in the preclinical stages of development. Our product candidates will require additional preclinical studies, clinical development regulatory review and approval, substantial investment, access to sufficient commercial manufacturing capacity and significant marketing efforts before we can generate any revenue from product sales. Our ability to generate revenue depends on a number of factors, including, but not limited to, our ability to:

Many of the factors listed above are beyond our control and could cause us to experience significant delays or prevent us from obtaining regulatory approvals or commercialize our product candidates. Even if we are able to commercialize our product candidates, we may not achieve profitability soon after generating product sales, if ever. If we are unable to generate sufficient revenue through the sale of our product candidates or any future product candidates, we will be unable to continue operations without continued funding.

Our engineered CER-T cells represent a novel approach to cancer treatment that creates significant challenges for us.

We are developing autologous T-cell product candidates that are engineered from healthy donor T-cells to express chimeric engulfment receptors (“CERs”) and are intended for use in patients with certain cancers. Advancing these novel product candidates creates significant challenges for us, including:

Our current product candidates are in early clinical or preclinical development and have never been tested in humans. One or all of our current product candidates may fail in clinical development or suffer delays that materially and adversely affect their commercial viability.

Our current product candidates are in early clinical and preclinical development and we are subject to the risks of failure inherent in the development of product candidates based on novel approaches, targets and mechanisms of action. Although we received IND clearance for CER-1236 from the FDA in November 2024 and for additional indications in March 2025, and we anticipate beginning clinical trials in the first half of 2025, there is no guarantee that we will be able to proceed with clinical development of CER-1236 or any of our other product candidates or that any product candidate will demonstrate a clinical benefit once we advance these candidates to testing in patients. Accordingly, you should consider our prospects in light of the costs, uncertainties, delays and difficulties frequently encountered by early clinical stage biotechnology companies such as ours.

Success in preclinical studies or clinical trials may not be indicative of results in future clinical trials.

Results from preclinical studies are not necessarily predictive of future clinical trial results, and interim results of a clinical trial are not necessarily indicative of final results. Our product candidates may ultimately fail to show the desired safety and efficacy in clinical settings despite positive results in preclinical studies or having successfully advanced through initial clinical trials. This failure to establish sufficient efficacy and safety could cause us to abandon clinical development of our product candidates.

Manufacturing genetically engineered products is complex and we, or our third-party manufacturers, may encounter difficulties in production. If we or any of our third-party manufacturers encounter such difficulties, our ability to provide supply of our product candidates for clinical trials or our products for patients, if approved, could be delayed or prevented.

Manufacturing genetically engineered products is complex and may require the use of innovative technologies to handle living cells. Manufacturing these products requires facilities specifically designed for and validated for this purpose and sophisticated quality assurance and quality control procedures are necessary. Slight deviations anywhere in the manufacturing process, including filling, labeling, packaging, storage and shipping and quality control and testing, may result in failures, product recalls or spoilage. When changes are made to the manufacturing process, we may be required to provide preclinical and clinical data showing the comparable identity, strength, quality, purity or potency of the products before and after such changes. If microbial, viral or other contaminations are discovered at manufacturing facilities, such facilities may need to be closed for an extended period of time to investigate and remedy the contamination, which could delay clinical trials and adversely harm our business. The use of biologically derived ingredients can also lead to allegations of harm, including infections or allergic reactions, or closure of product facilities due to possible contamination.

In addition, there are risks associated with large scale manufacturing for clinical trials or commercial scale including, among others, cost overruns, potential problems with process scale-up, process reproducibility, stability issues, compliance with good manufacturing practices, lot consistency and timely availability of raw materials. Even if we obtain marketing approval for any of our product candidates, there is no assurance that we or our manufacturers will be able to manufacture the approved product to specifications acceptable to the FDA, the EMA or other comparable foreign regulatory authorities, to produce it in sufficient quantities to meet the requirements for the potential commercial launch of the product or to meet potential future demand. If we or our manufacturers are unable to produce sufficient quantities for clinical trials or for commercialization, our development and commercialization efforts would be impaired, which would have an adverse effect on our business, financial condition, results of operations and growth prospects.

Genetic engineering of T cells to create CER-T cells is a relatively new technology, and if we are unable to use this technology in our intended product candidates, our revenue opportunities will be materially limited.

Our technology involves a relatively new approach to T cell gene therapy. This technology may also not be shown to be effective in clinical studies that we may conduct or may be associated with safety issues that may negatively affect the development of our product candidates. For instance, lentiviral gene transduction may create unintended changes to the DNA such as a non-target site gene insertion, a large deletion, or a DNA translocation, any of which could lead to oncogenesis.

We may not be successful in our efforts to identify or discover additional product candidates.

The success of our business depends primarily upon our ability to identify, develop and commercialize products based on our CER-T cell technology. Our research programs may fail to identify other potential product candidates outside of CER-1236 for clinical development for a number of reasons. We may be unsuccessful in identifying potential product candidates or our potential product candidates may be shown to have harmful side effects or may have other characteristics that may make the products unmarketable or unlikely to receive marketing approval. Research programs to identify new product candidates require substantial technical, financial and human resources. We may focus our efforts and resources on potential programs or product candidates that ultimately prove to be unsuccessful. If any of these events occur, we may be forced to abandon our research, development or commercialization efforts for a program or programs, which would have a material adverse effect on our business and could potentially cause us to cease operations.

Even if we obtain regulatory approval of a product candidate, the product may not gain market acceptance among physicians, patients, hospitals, cancer treatment centers and others in the medical community.

The use of engineered T cells as a potential cancer treatment is nascent and may not become broadly accepted by physicians, patients, hospitals, cancer treatment centers and others in the medical community. We expect physicians with expertise in immunotherapy to be particularly important to the market acceptance of our products and we may not be able to educate them on the benefits of using our product candidates for many reasons. For example, certain of the product candidates that we will be developing may result in unacceptable and unanticipated side effects, including death. Additional factors will influence whether our product candidates are accepted in the market, including:

If our product candidates are approved but fail to achieve market acceptance among physicians, patients, hospitals, cancer treatment centers or others in the medical community, we will not be able to generate significant revenue. Even if our products achieve market acceptance, we may not be able to maintain that market acceptance over time if new products or technologies are introduced that are more favorably received than our products, are more cost effective or render our products obsolete.

Data from our preclinical studies is limited and may change as patient data become available or may not be validated in any future or advanced clinical trial.

Data from preclinical studies and any clinical trials that we may complete is subject to the risk that one or more of the clinical outcomes may materially change as patient enrollment continues and more patient data becomes available. For example, preclinical and Phase 1 results are preliminary in nature and should not be viewed as predictive of ultimate success. It is possible that such results will not continue or may not be repeated in any clinical trial of our product candidates. For instance, our preclinical studies provide limited data and any clinical trials may not validate such results. Additionally, manufacturing can impact clinical outcomes and we have not yet completed manufacturing runs with a CDMO. We may also fail to develop and transfer to a CDMO any optimized manufacturing processes for any of our programs. Ultimately, if we cannot manufacture our product candidates with consistent and reproducible product characteristics, our ability to develop and commercialize any product candidate would be significantly impacted.

Preliminary data also remains subject to audit and verification procedures that may result in the final data being materially different from the preliminary data we previously published. As a result, initial, interim and preliminary data should be viewed with caution until the final data are available. Adverse differences between preliminary or interim data and final data could significantly harm our business prospects.

We may not be able to file INDs or IND amendments to commence clinical trials on the timelines we expect, and even if we are able to, the FDA may not permit us to proceed.

The IND for CER-1236 was filed on June 28, 2024 and on November 15, 2024, the FDA cleared us to begin clinical trials for the treatment of AML and we submitted a second IND application for the investigation of CER-T cell therapy in NSCLC and ovarian cancer, which was accepted by the FDA on March 27, 2025, but there are no assurances regarding the acceptance of any amendments or future INDs, which may impact the timelines we expect. For example, we may experience manufacturing delays or other delays with future IND-enabling studies. Moreover, there can be no assurances that once trials begin, issues will not arise that suspend or terminate such clinical trials. Additionally, even if such regulatory authorities agree with the design and implementation of the clinical trials set forth in an IND, we cannot guarantee that such regulatory authorities will not change their requirements in the future. These considerations also apply to new clinical trials we may submit as amendments to existing INDs.

Clinical trials are difficult to design and implement, involve uncertain outcomes and may not be successful.

Human clinical trials are difficult to design and implement, in part because they are subject to rigorous regulatory requirements. The design of a clinical trial can determine whether its results will support approval of a product, and flaws in the design of a clinical trial may not become apparent until the clinical trial is well advanced. We may be unable to design and execute a clinical trial that will be successful to achieve regulatory approval. There is a high failure rate for biological products proceeding through clinical trials, which may be higher for our product candidates because they are based on new technology and engineered on a patient-by-patient basis. Many companies in the pharmaceutical and biotechnology industries have suffered significant setbacks in late-stage clinical trials even after achieving promising results in preclinical testing and earlier-stage clinical trials. Data obtained from preclinical and clinical activities are subject to varying interpretations, which may delay, limit or prevent regulatory approval. In addition, we may experience regulatory delays or rejections as a result of many factors, including changes in regulatory policy during the period of our product candidate development. Any such delays could negatively impact our business, financial condition, results of operations and prospects.

We will depend on enrollment of patients in our clinical trials for our product candidates. If we encounter difficulties enrolling patients in our clinical trials, our clinical development activities could be delayed or otherwise adversely affected.

Identifying and qualifying patients to participate in clinical trials of our product candidates will be critical to our success. We may experience difficulties in patient enrollment in our clinical trials for a variety of reasons. The timely completion of clinical trials in accordance with their protocols depends, among other things, on our ability to enroll a sufficient number of patients who remain in the study until its conclusion. The enrollment of patients depends on many factors, including:

In particular, some of our clinical trials will look to enroll patients with characteristics which are found in a very small population. For example, our clinical trial for CER-1236 will seek to enroll patients with hematologic malignancies, including AML, MCL, CLL, and other B cell and myeloid neoplasms. Other companies are conducting clinical trials with their engineered T cell therapies in hematologic malignancies and seek to enroll patients in their studies that may otherwise be eligible for our clinical trials, which could lead to slow recruitment and delays in our clinical trials. In addition, since the number of qualified clinical investigators is limited, we expect to conduct some of our clinical trials at the same clinical trial sites that some of our competitors use, which could further reduce the number of patients who are available for our clinical trials in these clinical trial sites.

Moreover, because our product candidates represent a departure from more commonly used methods for cancer treatment, potential study participants and their doctors may be inclined to use conventional therapies, such as chemotherapy and antibody therapy, rather than participate in our clinical trials.

Delays in patient enrollment may result in increased costs or may affect the timing or outcome of the planned clinical trials, which could prevent completion of these clinical trials and adversely affect our ability to advance the development of our product candidates. In addition, many of the factors that may lead to a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of our product candidates.

If the market opportunities for any of our product candidates are smaller than we believe they are, our revenue may be adversely affected, and our business may suffer.

We are focused initially on the development of treatments for cancers such as AML, MCL and CLL, and plan to eventually extend our treatments to other forms of cancer. Our internal projections of addressable patient populations that have the potential to benefit from treatment with our product candidates are based on estimates. If any of our estimates are inaccurate, the market opportunities for any of our product candidates could be significantly diminished and have an adverse material impact on our business.

We currently have no marketing and sales organization and have no experience in marketing products. If we are unable to establish marketing and sales capabilities or enter into agreements with third parties to market and sell our product candidates, if licensed, we may not be able to generate product revenue.

We currently have no sales, marketing or distribution capabilities and have no experience in marketing products. We intend to develop an in-house marketing organization and sales force, which will require significant capital expenditures, management resources and time. We will have to compete with other pharmaceutical and biotechnology companies to recruit, hire, train and retain marketing and sales personnel.

If we are unable or decide not to establish internal sales, marketing and distribution capabilities, we will pursue collaborative arrangements regarding the sales and marketing of our product candidates following their approval. However, there can be no assurance that we will be able to establish or maintain such collaborative arrangements, or if we are able to do so, that they will have effective sales forces. Any revenue we receive will depend upon the efforts of such third parties, which may not be successful. We may have little or no control over the marketing and sales efforts of such third parties and our revenue from product sales may be lower than if we had commercialized our product candidates ourselves. We also face competition in our search for third parties to assist us with the sales and marketing efforts of our product candidates.

There can be no assurance that we will be able to develop in-house sales and distribution capabilities or establish or maintain relationships with third-party collaborators to commercialize any product in the United States or overseas.

We face competition from companies that have developed or may develop product candidates for the treatment of the diseases that we may target, including companies developing novel therapies and platform technologies. If these companies develop platform technologies or product candidates more rapidly than we do, if their platform technologies or product candidates are more effective or have fewer side effects, our ability to develop and successfully commercialize product candidates may be adversely affected.

The development and commercialization of cell and gene therapies is highly competitive. We compete with a variety of large pharmaceutical companies, multinational biopharmaceutical companies, other biopharmaceutical companies and specialized biotechnology companies, as well as technology and/or therapeutics being developed at universities and other research institutions. Our competitors are often larger and better funded than we are. Our competitors have developed, are developing or will develop product candidates and processes competitive with ours. Competitive therapeutic treatments include those that have already been approved and accepted by the medical community and any new treatments that are currently in development or that enter the market. We believe that a significant number of product candidates are currently under development, and may become commercially available in the future, for the treatment of conditions for which we may try to develop product candidates. There is intense and rapidly evolving competition in the biotechnology and biopharmaceutical fields. We believe that while our T-cell based platform, its associated intellectual property portfolio, the characteristics of our current and potential future product candidates and our scientific and technical know-how together give us a competitive advantage in this space, competition from many sources remains.

Many of our competitors have significantly greater financial, technical, manufacturing, marketing, sales and supply resources or experience than we do. If we successfully obtain approval for any product candidate, we will face competition based on many different factors, including the safety and effectiveness of our product candidates, the ease with which our product candidates can be administered, the timing and scope of regulatory approvals for these product candidates, the availability and cost of manufacturing, marketing and sales capabilities, price, reimbursement coverage and patent position. Competing products and product candidates could present superior treatment alternatives, including by being more effective, safer, less expensive or marketed and sold more effectively than any products we may develop. Competitive products and product candidates may make any product we develop obsolete or noncompetitive before we recover the expense of developing and commercializing such product. Such competitors could also recruit our employees, which could negatively impact our level of expertise and our ability to execute our business plan.

These competitors also compete with us in recruiting and retaining qualified scientific and management personnel and establishing clinical study sites and patient registration for clinical studies, as well as in acquiring technologies complementary to, or necessary for, our programs. Smaller or early-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies.

Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize products that are safer, more effective, have fewer or less severe side effects, are more convenient or are less expensive or better reimbursed than any products that we may commercialize. Our competitors also may obtain FDA, EMA or other regulatory approval for their products more rapidly than we may obtain approval for ours, which could result in our competitors establishing a strong market position for either the product or a specific indication before we are able to enter the market.

We are highly dependent on our key personnel, including individuals with expertise in cell therapy development and manufacturing, and if we are not successful in attracting and retaining highly qualified personnel, we may not be able to successfully implement our business strategy.

Our ability to compete in the highly competitive biotechnology and pharmaceutical industries depends upon our ability to attract and retain highly qualified managerial, scientific and medical personnel. We are highly dependent on the expertise of our management, scientific and medical personnel, including our chief executive officer (“Chief Executive Officer”), Chris Ehrlich, our chief development officer (“Chief Development Officer”), Kristen Pierce, our chief financial officer (“Chief Financial Officer”), Andrew “Al” Kucharchuk and the head of our scientific advisory board, Lawrence Corey. The loss of the services of any of our executive officers, other key employees, and other scientific and medical advisors, and our inability to find suitable replacements could result in delays in product development and harm our business.

We conduct substantially all of our operations at our facilities in the South San Francisco area. The San Francisco Bay Area region is headquarters to many other biopharmaceutical companies and many academic and research institutions. Competition for skilled personnel in our market is intense and may limit our ability to hire and retain highly qualified personnel on acceptable terms or at all. Attrition may lead to higher costs for hiring and retention, diversion of management time to address retention matters and disrupt the business.

To induce valuable employees to remain at our company, in addition to salary and cash incentives, we have provided equity-based compensation for retention purposes. Despite our efforts to retain valuable employees, members of our management, scientific and development teams may terminate their employment with us on short notice. Although we have employment agreements or consulting agreements with our key employees, these agreements provide for at-will employment, which means that any of our employees could leave our employment at any time, with or without notice. We do not maintain “key person” insurance policies on the lives of these individuals or the lives of any of our other employees. Our success also depends on our ability to continue to attract, retain and motivate highly skilled junior, mid-level and senior managers as well as junior, mid-level and senior scientific and medical personnel.

We will need to continue to grow the size of our organization, and we may experience difficulties in managing this growth.

As our development, manufacturing and commercialization plans and strategies develop, we expect to add managerial, operational, sales, R&D, marketing, financial and other personnel. Current and future growth imposes and will impose significant added responsibilities on members of management, including:

Our future financial performance and our ability to commercialize our product candidates will depend, in part, on our ability to effectively manage our growth, and our management may also have to divert a disproportionate amount of its attention away from day-to-day activities in order to devote a substantial amount of time to managing these growth activities.

We currently rely, and for the foreseeable future will continue to rely, in substantial part on certain independent organizations, advisors and consultants. There can be no assurance that the services of independent organizations, advisors and consultants will continue to be available to us on a timely basis when needed, or that we can find qualified replacements. We may also be subject to penalties or other liabilities if we mis-classify employees as consultants. In addition, if we are unable to effectively manage our outsourced activities or if the quality or accuracy of the services provided by consultants is compromised for any reason, our clinical trials may be extended, delayed or terminated, and we may not be able to obtain regulatory approval of our product candidates or otherwise advance our business. There can be no assurance that we will be able to manage our existing consultants or find other competent outside contractors and consultants on economically reasonable terms, or at all.

If we are not able to effectively expand our organization by hiring and retaining employees and expanding our groups of consultants and contractors, we may not be able to successfully implement the tasks necessary to further develop, manufacture and commercialize our product candidates and, accordingly, may not achieve our research, development, manufacturing and commercialization goals. Conversely, if we expand ahead of our business progress, we may take on unnecessary costs.

We may form or seek strategic alliances or enter into licensing arrangements in the future, and we may not realize the benefits of such alliances or licensing arrangements.

We may form or seek strategic alliances, create joint ventures or collaborations or enter into licensing arrangements with third parties that we believe will complement or augment our development and commercialization efforts with respect to our product candidates and any future product candidates that we may develop. Any of these relationships may require us to incur non-recurring and other charges, increase our near and long-term expenditures, issue securities that dilute our existing stockholders or disrupt our management and business. In addition, we face significant competition in seeking appropriate strategic partners and the negotiation process is time-consuming and complex. Moreover, we may not be successful in our efforts to establish a strategic partnership or other alternative arrangements for our product candidates because they may be deemed to be at too early of a stage of development for collaborative effort and third parties may not view our product candidates as having the requisite potential to demonstrate safety and efficacy. Any delays in entering into strategic partnership agreements related to our product candidates could delay the development and commercialization of our product candidates in certain geographies for certain indications, which would harm our business prospects, financial condition and results of operations.

If we license products or new technologies or acquire businesses, we may not be able to realize the benefit of such transactions if we are unable to successfully integrate them with our existing operations and company culture. For instance, certain of our agreements may require significant R&D that may not result in the development and commercialization of product candidates. We cannot be certain that, following a strategic transaction or license, we will achieve the results, revenue or specific net income that justifies such transaction.

We will need substantial additional financing to develop our product candidates and implement our operating plans, which financing we may be unable to obtain, or unable to obtain on acceptable terms. If we fail to obtain additional financing, we may be unable to complete the development and commercialization of our product candidates.

We expect to spend a substantial amount of capital in the development and manufacturing of our product candidates, and we will need substantial additional financing to do so. In particular, we will require substantial additional financing to enable commercial production of our product candidates and initiate and complete registrational trials for multiple products in multiple regions. Further, if approved, we will require significant additional capital in order to launch and commercialize our product candidates.

As of December 31, 2024, we had approximately $3.3 million in cash and cash equivalents. Changing circumstances may cause us to consume capital significantly faster than we currently anticipate, and we may need to spend more money than currently expected because of circumstances beyond our control. We may also need to raise additional capital sooner than we currently anticipate if we choose to expand more rapidly than we presently plan. In any event, we will require additional capital for the further development and commercialization of our product candidates, including funding our internal manufacturing capabilities.

We cannot be certain that additional funding will be available on acceptable terms, or at all. We have no committed source of additional capital. If we are unable to raise additional capital in sufficient amounts or on terms acceptable to us, we may have to significantly delay, scale back or discontinue the development or commercialization of our product candidates or other R&D initiatives. We could be required to seek collaborators for our product candidates at an earlier stage than otherwise would be desirable or on terms that are less favorable than might otherwise be available or relinquish or license on unfavorable terms our rights to our product candidates in markets where we otherwise would seek to pursue development or commercialization ourselves.

Any of the above events could significantly harm our business, prospects, financial condition and results of operations and cause the price of our Common Stock to decline.

Raising additional capital may cause dilution to our stockholders, restrict our operations or require us to relinquish rights to our product candidates.

Until such time, if ever, as we can generate substantial revenue from the sale of our product candidates, we will need substantial additional financing to develop our product candidates and implement our operating plans. To the extent that we raise additional capital through the sale of equity or convertible debt securities, your ownership interest will be diluted, and the terms of these securities may include liquidation or other preferences that could adversely affect your rights as a common stockholder. Debt financing and preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends.

If we raise additional funds through collaborations, strategic alliances or marketing, distribution or licensing arrangements with third parties, we may be required to relinquish valuable rights to our research programs or product candidates or grant licenses on terms that may not be favorable to us or that may be at less than the full potential value of such rights. If we are unable to raise additional funds through equity or debt financings or other arrangements with third parties when needed, we may be required to delay, limit, reduce or terminate our drug development or future commercialization efforts or grant rights to third parties to develop and market product candidates that we would otherwise prefer to develop and market ourselves.

The issuance of shares of our Common Stock upon conversion or exercise of our outstanding Preferred Shares and Common Warrants and other securities that we may issue in future financing transactions may result in substantial dilution to our stockholders.

As of April 11, 2025, the Company currently has outstanding (i) 1,429 shares of Series A Preferred Stock with a conversion value of approximately $1.4 million, convertible into shares of Common Stock at a conversion rate of the stated value thereof divided by a current effective conversion price of $1.96; (ii) 198 shares of Series B Preferred Stock with a conversion value of approximately $0.2 million, convertible into shares of Common Stock at a conversion rate of the stated value thereof divided by a floating conversion price of 80% of the lowest volume weighted average price during the five trading days immediately prior to conversion; (iii) 2,537 shares of Series C Preferred Stock with a stated value of approximately $2.5 million, convertible into shares of Common Stock at a conversion rate of the stated value thereof divided by a conversion price of $1.96 (iv) Series A Warrants to purchase 6,127 shares of Common Stock at an exercise price of $139.00 per share; (v) Series C Warrants to purchase 81,753 shares of Common Stock at an exercise price of $0.04; (vi) December 2024 and January 2025 Common Warrants to purchase an aggregate of 247,914 shares of Common Stock at an exercise price ranging from $5.61 to $5.82, (vii) February 2025 Common Warrants to purchase an aggregate of 2,551,020 shares of Common Stock at an exercise price of $1.96, (viii) Pre-Funded Warrants to purchase an aggregate of 215,740 shares of Common Stock at an exercise price of $0.0001, and (ix) Public Warrants and Private Placement Warrants to purchase an aggregate of 91,925 shares of Common Stock at an exercise price of $1,150.00 per share.

Although each of the conversion price of the Preferred Shares and the exercise prices of the December 2024 Common Warrants, January 2025 Common Warrants, and Series A Warrants are at or above the trading price of our Common Stock as of the date of this Annual Report, if such trading price increases, such conversion prices and exercise prices will not change as a result thereof and could be below the trading price of our Common Stock as of the date of any future conversion or exercise thereof, resulting in dilution to our stockholders. In addition, the terms of the Series A Preferred Stock, the Series B Preferred Stock and the Series C Preferred Stock contain certain penalties and adjustments to the amount included in determination of the conversion rate following certain breaches of the Company’s obligations thereunder, including, among other things, as a result of a failure to file or cause the SEC to declare one or more registration statements relating to the resale of the shares of Common Stock issuable upon conversion thereof by specified deadlines, certain defaults under indebtedness of the Company or judgments against the Company and failure to deliver shares of Common Stock upon conversion in a timely manner. For example, the penalties and adjustments include a 25% premium added to the stated value for determining the conversion rate in connection with breaches other than the breach of the requirement to redeem the shares of Series A Preferred Stock and Series B Preferred Stock by August 14, 2025, which results in a 50% premium, and the addition to the stated value of an amount equal to the value of the shares of Common Stock into which the Series A Preferred Stock or Series B Preferred Stock would have been convertible if the conversion price were equal to 80% of the lowest volume weighted average price during the five trading days immediately prior to conversion. Such penalties and adjustments, which applied during the period when substantially all of the conversions since the Business Combination described in the preceding paragraph occurred as a result of a failure to file and cause the SEC to declare a registration statement with respect to the resale of the underlying shares in a timely manner, have resulted and may in the future result in the issuance of shares of Common Stock at an effective conversion price below the trading price of our Common Stock at the time of such conversion.

We cannot assure you that we will remain in compliance with all of the terms of the Series A Preferred Stock, Series B Preferred Stock or Series C Preferred Stock and that such penalties and adjustments will not apply in the future. In addition, we cannot assure you that we will not issue additional convertible or other derivative securities with highly dilutive penalty or adjustment provisions. As described elsewhere in this Annual Report, the Company needs to obtain financing to fund its research and development activities and clinical trials, as well as other operations. Under challenging conditions in the equity capital markets, particularly for pre-commercialization biotech companies, we may have no viable alternatives to agreeing to inclusion of such provisions in the terms of future financings.

If our security measures, or those of our CROs, CDMOs, collaborators, contractors, consultants or other third parties upon whom we rely, are compromised or the security, confidentiality, integrity or availability of our information technology, software, services, networks, communications or data is compromised, limited or fails, we could experience a material adverse impact.

In the ordinary course of our business, we may collect, process, receive, store, use, generate, transfer, disclose, make accessible, protect, secure, dispose of, transmit, and share (collectively processing) proprietary, confidential and sensitive information, including personal data (including health information), intellectual property, trade secrets, and proprietary business information owned or controlled by ourselves or other parties. We may also share or receive sensitive information with our partners, CROs, CDMOs, or other third parties. Our ability to monitor these third parties’ information security practices is limited, and these third parties may not have adequate information security measures in place. If we (or a third party upon whom we rely) experience a security incident or compromise, or are perceived to have experienced a security incident or compromise, we may also experience adverse consequences.

Our internal computer systems and those of our CROs, CDMOs, collaborators, contractors, consultants or other third parties are vulnerable to damage from computer viruses, unauthorized access, cybersecurity threats, and telecommunication and electrical failures. In addition, as many of our personnel work from home at least part of the time and utilize network connections outside our premises, this poses increased risks to our information technology systems and data. Cyberattacks, malicious internet-based activity, and online and offline fraud are prevalent and are increasing in their frequency, sophistication and intensity, and have become increasingly difficult to detect. These threats come from a variety of sources, including traditional computer “hackers,” “hacktivists,” organized criminal threat actors, threat actors, personnel (such as through theft or misuse), sophisticated nation-states, and nation-state-supported actors. Some actors now engage and are expected to continue to engage in cyber-attacks, including without limitation nation-state actors for geopolitical reasons and in conjunction with military conflicts and defense activities. During times of war and other major conflicts, we, and the third parties upon which we rely, may be vulnerable to a heightened risk of these attacks, including retaliatory cyber-attacks, that could materially disrupt our systems and operations, supply chain, and ability to produce and distribute our product candidates. We and the third parties upon which we rely are subject to a variety of evolving threats, including social-engineering attacks (including through phishing attacks), malicious code (such as viruses and worms), malware (including as a result of advanced persistent threat intrusions), denial-of-service (such as credential stuffing), credential harvesting, social engineering attacks (including through phishing attacks), viruses, ransomware, supply chain attacks, personnel misconduct or error and other similar threats. We may also be the subject of software bugs, server malfunction, software or hardware failures, loss of data or other information technology assets, adware, telecommunications failures or other similar issues. In particular, ransomware attacks are becoming increasingly prevalent and severe and can lead to significant interruptions, delays, or outages in our operations, disruptions to our clinical trials, loss of data (including data related to clinical trials), significant expense to restore data or systems, reputational loss and the diversion of funds. Extortion payments may alleviate the negative impact of a ransomware attack, but we may be unwilling or unable to make such payments due to, for example, applicable laws or regulations prohibiting such payments. Similarly, supply chain attacks have increased in frequency and severity, and we cannot guarantee that third parties and infrastructure in our supply chain have not been compromised or that they do not contain exploitable defects or bugs that could result in a breach to our information technology systems or the third-party information technology systems that support us and our services. Future or past business transactions (such as acquisitions or integrations) could expose us to additional cybersecurity risks and vulnerabilities, as our systems could be negatively affected by vulnerabilities present in acquired or integrated entities’ systems and technologies. Furthermore, we may discover security issues that were not found during due diligence of such acquired or integrated entities, and it may be difficult to integrate companies into our information technology environment and security program.

Any of the previously identified or similar threats could cause a security incident, compromise, or other interruption. A security incident, compromise, or other interruption could result in unauthorized, unlawful, or accidental acquisition, modification, destruction, loss, alteration, encryption, disclosure of, or access to our sensitive information. A security incident or other interruption could disrupt our ability (and that of third parties upon whom we rely) to manufacture or deliver our product candidates.

We may expend significant resources, or modify our business activities and operations, including our clinical trial activities, in an effort to protect against security incidents. Certain data privacy and security obligations may require us to implement and maintain specific security measures or use industry-standard or reasonable security measures to protect our information technology systems and sensitive information.

Although we have implemented security measures designed to protect against security incidents, there can be no assurance that these measures will be effective. We, and the third parties on whom we rely, have experienced, and expect to continue to experience, threats to and attempts to compromise the security of our information technology systems or otherwise cause a security incident. Such security incidents or compromises, if experienced, could have an adverse impact on our business.

We may be unable to detect vulnerabilities in our information technology systems because such threats and techniques change frequently, are often sophisticated in nature, and may not be detected until after a security incident has occurred. Despite our efforts to identify and remediate exploitable critical vulnerabilities, if any, in our information technology systems, our efforts may not be successful. Further, we may experience delays in developing and deploying remedial measures designed to address any such identified vulnerabilities. Any failure to prevent or mitigate security incidents or improper access to, use of, or disclosure of our clinical data or patients’ personal data could result in significant liability under state, federal, and international law and may cause a material adverse impact to our reputation, affect our ability to conduct our clinical trials and potentially disrupt our business.

Applicable data protection laws, privacy policies and data protection obligations may require us to notify relevant stakeholders of security incidents or compromises. Such disclosures are costly, and the disclosures or the failure to comply with such requirements could lead to adverse consequences. If we (or a third party upon whom we rely) experience a security incident or are perceived to have experienced a security incident, we may also experience adverse consequences. These consequences may include: government enforcement actions (for example, investigations, fines, penalties, audits, and inspections); additional reporting requirements and/or oversight; restrictions on processing sensitive information (including personal data); litigation (including class claims); indemnification obligations; negative publicity; reputational harm; monetary fund diversions; interruptions in our operations (including availability of data); financial loss; and other similar harms.

Our contracts may not contain limitations of liability, and even where they do, there can be no assurance that the limitations of liability in our contracts are sufficient to protect us from liabilities, damages, or claims related to our data privacy and security obligations.

We cannot be sure that our insurance coverage will be adequate or sufficient to protect us from or adequately mitigate liabilities arising out of our privacy and security practices, or that such coverage will continue to be available on commercially reasonable terms or at all, or that such coverage will pay future claims.

Disruptions at the FDA, the SEC and other government agencies caused by reduction in staffing, funding shortages or global health concerns could hinder their ability to hire and retain key leadership and other personnel, prevent new products and services from being developed or commercialized in a timely manner or otherwise prevent those agencies from performing normal business functions on which the operation of our business may rely, which could negatively impact our business.

The ability of the FDA to review and approve new products can be affected by a variety of factors, including staffing levels, government budget and funding levels, ability to hire and retain key personnel and accept the payment of user fees, and statutory, regulatory, and policy changes. Average review times at the agency have fluctuated in recent years as a result. In addition, government funding of the SEC and other government agencies on which our operations may rely, including those that fund R&D activities is subject to the political process, which is inherently fluid and unpredictable. The Trump Administration has issued executive orders seeking to greatly reduce the size of the federal workforce, including through layoffs and severance packages offered to employees of federal agencies within the executive branch and independent agencies, including the SEC and the FDA. Any such reduction in personnel may result in longer review times by the FDA or SEC.

Disruptions and personnel turnover, as a result of leadership changes, staff reductions or otherwise, at the FDA and other government agencies may also slow the time necessary for new drugs to be reviewed and/or approved by necessary government agencies, which would adversely affect our business. In addition to the potential reduction in staffing, a government shutdown could adversely affect the FDA review process. Over the last several years the U.S. government has shut down several times and certain regulatory agencies, such as the FDA and the SEC, have had to furlough critical FDA, SEC and other government employees and stop critical activities. If a prolonged government shutdown occurs, it could significantly impact the ability of the FDA to timely review and process our regulatory submissions, which could have a material adverse effect on our business. Further, in our operations as a public company, future government shutdowns could impact our ability to access the public markets and obtain necessary capital in order to properly capitalize and continue our operations.

Since March 2020, when foreign and domestic inspections of facilities were largely placed on hold, the FDA has been working to resume pre-pandemic levels of inspection activities, including routine surveillance, bioresearch monitoring and pre-approval inspections. Should the FDA determine that an inspection is necessary for approval and an inspection cannot be completed during the review cycle due to restrictions on travel or otherwise, and the FDA does not determine a remote interactive evaluation to be adequate, the FDA has stated that it generally intends to issue, depending on the circumstances, a complete response letter or defer action on the application until an inspection can be completed.

Business disruptions, including financial institution distress, could seriously harm our future revenue and financial condition and increase our costs and expenses.

Our operations, and those of our CROs, CDMOs and other contractors and consultants, could be subject to earthquakes, power shortages, telecommunications failures, water shortages, floods, hurricanes, typhoons, fires, extreme weather conditions, medical pandemics or epidemics and other natural or man-made disasters or business interruptions. The occurrence of any of these business disruptions could seriously harm our operations and financial condition and increase our costs and expenses. Our ability to obtain clinical supplies of our product candidates could be disrupted if the operations of these suppliers are affected by a man-made or natural disaster or other business interruption.

Our employees, independent contractors, consultants, commercial partners and vendors may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements.

We are exposed to the risk of employee fraud or other illegal activity by our employees, independent contractors, consultants, commercial partners and vendors. Misconduct by these parties could include intentional, reckless and/or negligent conduct that fails to comply with the regulations of the FDA and other similar foreign regulatory authorities, provide true, complete and accurate information to the FDA and other similar foreign regulatory authorities, comply with manufacturing standards we have established, comply with healthcare fraud and abuse laws in the United States and similar foreign fraudulent misconduct laws or report financial information or data accurately or to disclose unauthorized activities to us. If we obtain FDA approval of any of our product candidates and begin commercializing those products in the United States, our potential exposure under such laws and regulations will increase significantly, and our costs associated with compliance with such laws and regulations are also likely to increase. These laws may impact, among other things, our current activities with principal investigators and research patients, as well as proposed and future sales, marketing and education programs. In particular, the promotion, sales and marketing of healthcare items and services, as well as certain business arrangements in the healthcare industry, are subject to extensive laws designed to prevent fraud, kickbacks, self-dealing and other abusive practices. These laws and regulations may restrict or prohibit a wide range of pricing, discounting, marketing and promotion, structuring and commission(s), certain customer incentive programs and other business arrangements generally. For more information, see the section entitled “Business– Healthcare Laws and Regulations.”

The distribution of biotechnology and biopharmaceutical products is subject to additional requirements and regulations, including extensive record-keeping, licensing, storage and security requirements intended to prevent the unauthorized sale of biotechnology and biopharmaceutical products.

The scope and enforcement of each of these laws is uncertain and subject to rapid change in the current environment of healthcare reform, especially in light of the lack of applicable precedent and regulations. Ensuring business arrangements comply with applicable healthcare laws, as well as responding to possible investigations by government authorities, can be time- and resource-consuming and can divert a company’s attention from other aspects of its business.

It is not always possible to identify and deter employee misconduct, and our code of ethics and the other precautions we take to detect and prevent inappropriate conduct may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to be in compliance with such laws or regulations.

Efforts to ensure that our business arrangements with third parties will comply with applicable healthcare laws and regulations will involve substantial costs. Because of the breadth of these laws and the narrowness of the statutory exceptions and safe harbors available, it is possible that some of our business activities could be subject to challenge under one or more of such laws. It is possible that governmental authorities will conclude that our business practices may not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of any of these laws or any other governmental regulations that may apply to us, we may be subject to significant criminal, civil and administrative sanctions including monetary penalties, damages, fines, disgorgement, diminished profits and future earnings, individual imprisonment, and exclusion from participation in government funded healthcare programs, such as Medicare and Medicaid, additional reporting requirements and oversight if we become subject to a corporate integrity agreement or similar agreement to resolve allegations of non-compliance with these laws, reputational harm, and we may be required to curtail or restructure our operations, any of which could adversely affect our ability to operate our business and our results of operations.

The shifting compliance environment and the need to build and maintain robust and expandable systems to comply with multiple jurisdictions with different compliance and/or reporting requirements increases the possibility that a healthcare company may run afoul of one or more of the requirements. Any action against us for violation of these laws, even if we successfully defend against it, could cause us to incur significant legal expenses and divert our management’s attention from the operation of our business.

The provision of benefits or advantages to physicians to induce or encourage the prescription, recommendation, endorsement, purchase, supply, order or use of medicinal products is also prohibited in the European Union. The provision of benefits or advantages to induce or reward improper performance generally is typically governed by the national anti-bribery laws of European Union Member States, and in respect of the U.K. (which is longer a member of the European Union), the U.K. Bribery Act 2010. Infringement of these laws could result in substantial fines and imprisonment. European Union Directive 2001/83/EC, which is the European Union Directive governing medicinal products for human use, further provides that, where medicinal products are being promoted to persons qualified to prescribe or supply them, no gifts, pecuniary advantages or benefits in kind may be supplied, offered or promised to such persons unless they are inexpensive and relevant to the practice of medicine or pharmacy. This provision has been transposed into the Human Medicines Regulations 2012 and so remains applicable in the UK despite its departure from the European Union. Payments made to physicians in certain European Union Member States must be publicly disclosed. Moreover, agreements with physicians often must be the subject of prior notification and approval by the physician’s employer, his or her competent professional organization and/or the regulatory authorities of the individual European Union Member States. These requirements are provided in the national laws, industry codes or professional codes of conduct, applicable in the European Union Member States. Failure to comply with these requirements could result in reputational risk, public reprimands, administrative penalties, fines or imprisonment.

The collection, use, disclosure, transfer, or other processing of personal data regarding individuals in the European Union, including personal health data, is subject to the European Union General Data Protection Regulation (“GDPR”), which became effective on May 25, 2018, as well as the United Kingdom’s General Data Protection Regulations (the “UK GDPR”), which, together with the amended UK Data Protection Act 2018, retains the GDPR in UK national law. The GDPR is wide-ranging in scope and imposes numerous requirements on companies that process personal data, including requirements relating to processing health and other sensitive data, obtaining consent of the individuals to whom the personal data relates, providing information to individuals regarding data processing activities, implementing safeguards to protect the security and confidentiality of personal data, providing notification of data breaches, and taking certain measures when engaging third-party processors. The GDPR also imposes strict rules on the transfer of personal data to countries outside the European Union, including the United States, and permits data protection authorities to impose large penalties for violations of the GDPR, including potential fines of up to €20 million or 4% of annual global revenues, whichever is greater; UK GDPR mirrors such fines under the GDPR. The GDPR also confers a private right of action on data subjects and consumer associations to lodge complaints with supervisory authorities, seek judicial remedies, and obtain compensation for damages resulting from violations of the GDPR. Compliance with the GDPR will be a rigorous and time-intensive process that may increase our cost of doing business or require us to change our business practices, and despite those efforts, there is a risk that we may be subject to fines and penalties, litigation, and reputational harm in connection with European activities. This and other future developments regarding the flow of data across borders could increase the cost and complexity of delivering our product candidates, if approved, in some markets and may lead to governmental enforcement actions, litigation, fines and penalties or adverse publicity, which could have an adverse effect on our reputation and business.

Our product candidates may cause undesirable side effects or have other properties that could halt their clinical development, prevent their regulatory approval, limit their commercial potential or result in significant negative consequences.

Future undesirable or unacceptable side effects caused by our product candidates could cause us or regulatory authorities to interrupt, delay or halt clinical trials and could result in a more restrictive label or the delay or denial of regulatory approval by the FDA or other comparable foreign regulatory authorities. Results of our clinical trials could reveal a high and unacceptable severity and prevalence of side effects or unexpected characteristics. Approved autologous T cell therapies and those under development by other companies have shown frequent rates of CRS, neurotoxicity, serious infections, prolonged cytopenia and hypogammaglobulinemia, and adverse events have resulted in the death of patients. Similar adverse events may occur for our T cell product candidates.

In addition, we utilize a lymphodepletion regimen, which generally includes fludarabine, cyclophosphamide or bendamustine, that may cause serious adverse events. For instance, because the regimen will cause a transient and sometimes prolonged immune suppression, patients will have an increased risk of infection, such as to COVID-19, that may be unable to be cleared by the patient and ultimately lead to other serious adverse events or death. Our lymphodepletion regimen has caused and may also cause prolonged cytopenia and aplastic anemia.

We may also combine the use of our product candidates with other investigational or approved therapies that may cause separate adverse events or events related to the combination or potentiate side effects of approved drugs.

If unacceptable toxicities arise in the development of our product candidates, we could suspend or terminate our trials or the FDA, the EMA or comparable foreign regulatory authorities could order us to cease clinical trials or deny approval of our product candidates for any or all targeted indications. Any data safety monitoring board may also suspend or terminate a clinical trial at any time on various grounds, including a finding that the research patients are being exposed to an unacceptable health risk, including risks inferred from other unrelated immunotherapy trials. Treatment-related side effects could also affect patient recruitment or the ability of enrolled subjects to complete the trial or result in potential product liability claims. In addition, these side effects may not be appropriately recognized or managed by the treating medical staff, as toxicities resulting from T cell therapy are not normally encountered in the general patient population and by medical personnel. Inadequate training in recognizing or managing the potential side effects of our product candidates could result in patient deaths. Any of these occurrences may harm our business, financial condition and prospects significantly.

Our product candidates may target healthy cells expressing target antigens, leading to potentially fatal adverse effects.

Our product candidates target specific antigens that are also expressed on healthy cells. For example, cell surface phosphatidylserine, the target of CER-1236, has been observed on activated immune cells, including platelets, and in rapidly dividing cells across various organs including the gastrointestinal system, hepatic system, cardiovascular system, renal system, pulmonary system, and the central nervous system and related peripheral nervous system. Our product candidates may target healthy cells, leading to serious and potentially fatal adverse effects. Even though we intend to closely monitor the side effects of our product candidates in both preclinical studies and clinical trials, we cannot guarantee that products will not target and kill healthy cells.

Our product candidates may have serious and potentially fatal cross-reactivity to lipids, peptides or protein sequences within the body.

Our product candidates may recognize and bind to a peptide unrelated to the target antigen to which it is designed to bind. If this peptide is expressed within normal tissues, our product candidates may target and kill the normal tissue in a patient, leading to serious and potentially fatal adverse effects. Additionally, our product candidates may bind with non-targeted lipids, leading to off-target reactivity. Detection of any on-target off-tumor or non-specific-reactivity may halt or delay any ongoing clinical trials for any CER-T cell based product candidate and prevent or delay regulatory approval. Unknown binding-reactivity of the CER-T cell binding domain to related proteins could also occur. Any non-specific binding interactions that impacts patient safety could materially impact our ability to advance our product candidates into clinical trials or to proceed to marketing approval and commercialization.

If product liability lawsuits are brought against us, we may incur substantial liabilities and may be required to limit commercialization of our product candidates.

We face an inherent risk of product liability as a result of the planned clinical testing of our product candidates and will face an even greater risk if we commercialize any products. For example, we may be sued if our product candidates cause or are perceived to cause injury or are found to be otherwise unsuitable during clinical testing, manufacturing, marketing or sale. Any such product liability claims may include allegations of defects in manufacturing, defects in design, packaging, a failure to warn of dangers inherent in the product, negligence, strict liability or a breach of warranties. Claims could also be asserted under state consumer protection acts. If we cannot successfully defend ourselves against product liability claims, we may incur substantial liabilities or be required to limit commercialization of our product candidates. Even successful defense would require significant financial and management resources. Regardless of the merits or eventual outcome, liability claims may result in:

Failure to obtain or retain sufficient product liability insurance at an acceptable cost to protect against potential product liability claims could prevent or inhibit the commercialization of products we develop, alone or with corporate collaborators. Although we plan on purchasing clinical trial insurance, such insurance policies also have various exclusions, and we may be subject to a product liability claim for which we have no coverage. We may have to pay any amounts awarded by a court or negotiated in a settlement that exceed our coverage limitations or that are not covered by our insurance, and we may not have, or be able to obtain, sufficient capital to pay such amounts. Even if our agreements with any future corporate collaborators entitle us to indemnification against losses, such indemnification may not be available or adequate should any claim arise.

Public opinion and scrutiny of cell-based immune-oncology therapies for treating cancer, or negative clinical trial results from our cell-based therapy competitors, or auto-immune cell therapy candidates, may impact public perception of our company and product candidates, or impair our ability to conduct our business.

Our autologous cell therapy platforms utilizes a relatively novel technology involving the genetic modification of cells, and no CER-T cell-based immunotherapy has been approved to date. Public perception may be influenced by claims, such as claims that cell-based immunotherapy is unsafe, unethical, or immoral and, consequently, our approach may not gain the acceptance of the public or the medical community. Negative public reaction to cell-based immunotherapy in general, or negative clinical trial results from our cell-based therapy competitors, or auto-immune cell therapy candidates, could result in greater government regulation and stricter labeling requirements of cell-based immunotherapy products, including any of our product candidates, and could cause a decrease in the demand for any products we may develop. Adverse public attitudes may adversely impact our ability to enroll patients in clinical trials. More restrictive government regulations or negative public opinion could have an adverse effect on our business or financial condition and may delay or impair the development and commercialization of our product candidates or demand for any products we may develop.

For example, in November 2023, the FDA announced that it would be conducting an investigation into reports of T-cell malignancies following BCMA-directed or CD19-directed autologous CAR-T cell immunotherapies following reports of T cell lymphoma in patients receiving these therapies. In January 2024, the FDA determined that new safety information related to T cell malignancies should be included in the labeling with boxed warning language on these malignancies for all BCMA- and CD-19-directed genetically modified autologous T cell immunotherapies. While CER-1236 and our engineered CER-T cells are designed to utilize a different mechanism of action, FDA’s investigation into CAR-T therapies and other similar actions could result in increased government regulation, unfavorable public perception and publicity, potential impacts on enrollment in our clinical trials, potential regulatory delays in the testing or approval of our product candidates, stricter labeling requirements for those product candidates that are approved, and a decrease in demand for any such product candidates.

Our product candidates for which we intend to seek approval as biological products may face competition sooner than anticipated, including from other therapeutic modalities.

The Affordable Care Act, signed into law on March 23, 2010, includes a subtitle called the BPCIA, which created an abbreviated approval pathway for biological products that are biosimilar to or interchangeable with an FDA-licensed reference biological product. Under the BPCIA, an application for a biosimilar product may not be submitted to the FDA until four years following the date that the reference product was first licensed by the FDA. In addition, the approval of a biosimilar product may not be made effective by the FDA until 12 years from the date on which the reference product was first licensed. During this 12-year period of exclusivity, another company may still market a competing version of the reference product if the FDA approves a full BLA for the competing product containing the sponsor’s own preclinical data and data from adequate and well-controlled clinical trials to demonstrate the safety, purity and potency of their product.

We believe that any of our product candidates approved as a biological product under a BLA should qualify for the 12-year period of exclusivity. However, there is a risk that this exclusivity could be shortened due to congressional action or otherwise, or that the FDA will not consider our product candidates to be reference products for competing products, potentially creating the opportunity for generic competition sooner than anticipated. Other aspects of the BPCIA, some of which may impact the BPCIA exclusivity provisions, have also been the subject of recent litigation. Moreover, the extent to which a biosimilar, once approved, will be substituted for any one of our products in a way that is similar to traditional generic substitution for non-biological products is not yet clear, and will depend on a number of marketplace and regulatory factors that are still developing.

If any approved products are subject to biosimilar competition sooner than we expect, we will face significant pricing pressure and our commercial opportunity will be limited.

The insurance coverage and reimbursement status of newly-approved products is uncertain. Failure to obtain or maintain adequate coverage and reimbursement for new products could limit our product revenues.

Our ability to commercialize any of our product candidates successfully will depend in part on the extent to which reimbursement for these products and related treatments will be available from government health administration authorities, private health insurers, and other organizations. In the United States, the principal decisions about reimbursement for new therapies are typically made by CMS, an agency within the United States Department of Health and Human Services. CMS decides whether and to what extent a new therapy will be covered and reimbursed under Medicare, and private payors tend to follow CMS determinations to a substantial degree. The availability and extent of reimbursement by governmental and private payors is essential for most patients to be able to afford expensive treatments, such as cellular immunotherapy. There is significant uncertainty related to the insurance coverage and reimbursement of newly approved products by government and third-party payors. In particular, there is no body of established practices and precedents for reimbursement of cellular immunotherapies, and it is difficult to predict what the regulatory authority or private payor will decide with respect to reimbursement levels for novel products such as ours. Our product candidates may not qualify for coverage or direct reimbursement, or may be subject to limited reimbursement. If reimbursement or insurance coverage is not available, or is available only to limited levels, we may not be able to successfully commercialize our product candidates, if approved. Even if coverage is provided, the approved reimbursement amount may not be sufficient to allow us to establish or maintain pricing to generate income.

In addition, reimbursement agencies in foreign jurisdictions may be more conservative than those in the United States. Accordingly, in markets outside the United States, the reimbursement for our product candidates, if approved, may be reduced as compared with the United States and may be insufficient to generate commercially reasonable revenues and profits. Moreover, increasing efforts by governmental and third-party payors, in the United States and abroad, to cap or reduce healthcare costs may cause such organizations to limit both coverage and level of reimbursement for new products approved, and as a result, they may not cover or provide adequate payment for our product candidates. Failure to obtain or maintain adequate reimbursement for any products for which we receive marketing approval will adversely affect our ability to achieve commercial success, and could have a material adverse effect on our operating results, our ability to raise capital needed to commercialize products, and our overall financial condition.

Even if we obtain regulatory and marketing approval for a product candidate, our product candidates will remain subject to regulatory oversight.

Even if we receive marketing and regulatory approval for CER-1236 or any other product candidates, regulatory authorities may still impose significant restrictions on the indicated uses or marketing or impose ongoing requirements for potentially costly post-approval studies. CER-1236 and other product candidates will also be subject to ongoing regulatory requirements for manufacturing, labeling, packaging, storage, advertising, promotion, sampling, record-keeping, and submission of safety and other post-market information. The FDA has significant post-market authority, including, for example, the authority to require labeling changes based on new safety information and to require post-market studies or clinical trials to evaluate serious safety risks related to the use of a biologic. Any regulatory approvals that we receive for CER-1236 or other product candidates may also be subject to a REMS, limitations on the approved indicated uses for which the product may be marketed or to the conditions of approval, or contain requirements for potentially costly post-marketing testing, including post-approval clinical trials, and surveillance to monitor the quality, safety, and efficacy of the product, all of which could lead to lower sales volume and revenue. For example, the holder of an approved BLA is obligated to monitor and report adverse events and any failure of a product to meet the specifications in the BLA. The holder of an approved BLA also must submit new or supplemental applications and obtain FDA approval for certain changes to the approved product, product labeling, or manufacturing process. Advertising and promotional materials must comply with FDA rules and are subject to FDA review, in addition to other potentially applicable federal and state laws.

In addition, product manufacturers and their facilities are subject to payment of user fees and continual review and periodic inspections by the FDA and other regulatory authorities for compliance with cGMP requirements and adherence to commitments made in the BLA or foreign marketing application. If we, or a regulatory authority, discover(s) previously unknown problems with a product, such as adverse events of unanticipated severity or frequency, or problems with the facility where the product is manufactured or disagrees with the promotion, marketing or labeling of that product, a regulatory authority may impose restrictions relative to that product, the manufacturing facility or us, including requiring recall or withdrawal of the product from the market or suspension of manufacturing.

If we or our contractors fail to comply with applicable regulatory requirements following approval of CER-1236 or our other product candidates, a regulatory authority may:

Any government investigation of alleged violations of law could require us to expend significant time and resources in response and could generate negative publicity. The occurrence of any event or penalty described above may inhibit our ability to commercialize CER-1236 or other product candidates and adversely affect our business, financial condition, results of operations, and prospects.

Prior treatments can alter the cancer or target of CER-T cell therapy and negatively impact chances for achieving clinical activity with our programmed T cells.

Patients with hematological cancers receive highly toxic lympho-depleting chemotherapy as their initial treatment. These therapies can impact the viability of the T cells collected from the patient and can contribute to highly variable responses to programmed T cell therapies. Patients could also have received prior therapies that target the same target antigen on the cancer cells as our intended programmed T cell product candidate and thereby lead to a selection of cancer cells with low or no expression of the target. Cancers also naturally evolve and select clones with low or no expression of the target. As a result, our programmed T cell product candidates may not recognize the cancer cell and may fail to achieve clinical activity. If any of our product candidates do not achieve a sufficient level of clinical activity, we may discontinue the development of that product candidate, which could adversely affect our business, financial condition, results of operations, and prospects.

Risks Related to Reliance on Third-Parties

We will rely on third parties to conduct our clinical trials. If these third parties do not properly and successfully carry out their contractual duties or meet expected deadlines, we may not be able to obtain regulatory approval of or commercialize our product candidates.

We expect to utilize and depend upon independent investigators and collaborators, such as medical institutions, CROs, CDMOs and strategic partners to conduct our preclinical studies under agreements with us and in connection with our clinical trials. We expect to have to negotiate budgets and contracts with CROs, trial sites and CDMOs which may result in delays to our development timelines and increased costs. We will rely heavily on these third parties over the course of our clinical trials and we control only certain aspects of their activities. As a result, we have less direct control over the conduct, timing and completion of these clinical trials and the management of data developed through clinical trials than would be the case if we were relying entirely upon our own staff. Nevertheless, we are responsible for ensuring that each of our studies is conducted in accordance with applicable protocol, legal and regulatory requirements and scientific standards and our reliance on third parties does not relieve us of our regulatory responsibilities. We and these third parties are required to comply with GCPs, which are regulations and guidelines enforced by the FDA and comparable foreign regulatory authorities for product candidates in clinical development. Regulatory authorities enforce these GCPs through periodic inspections of trial sponsors, principal investigators and trial sites. If we or any of these third parties fail to comply with applicable GCP regulations, the clinical data generated in our clinical trials may be deemed unreliable and the FDA or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving our marketing applications. We cannot assure you that, upon inspection, such regulatory authorities will determine that any of our clinical trials comply with the GCP regulations. In addition, our clinical trials must be conducted with biological product produced under cGMP regulations, including current good tissue practice (“cGTP”) regulations, and will require a large number of test patients. Our failure or any failure by these third parties to comply with these regulations or to recruit a sufficient number of patients may require us to repeat clinical trials, which would delay the regulatory approval process. Moreover, our business may be implicated if any of these third parties violates federal or state fraud and abuse or false claims laws and regulations or healthcare privacy and security laws.

Any third parties conducting our clinical trials are not and will not be our employees and, except for remedies available to us under our agreements with such third parties, we cannot control whether or not they devote sufficient time and resources to our product candidates. These third parties may also have relationships with other commercial entities, including our competitors, for whom they may also be conducting clinical trials or other drug development activities, which could affect their performance on our behalf. If these third parties do not successfully carry out their contractual duties or obligations or meet expected deadlines, if they need to be replaced or if the quality or accuracy of the clinical data they obtain is compromised due to the failure to adhere to our clinical protocols or regulatory requirements or for other reasons, our clinical trials may be extended, delayed or terminated and we may not be able to complete development of, obtain regulatory approval of or successfully commercialize our product candidates. As a result, our financial results and the commercial prospects for our product candidates would be harmed, our costs could increase and our ability to generate revenue could be delayed.

Switching or adding third parties to conduct our clinical trials involves substantial cost and requires extensive management time and focus. In addition, changes in manufacturers often involve changes in manufacturing procedures and processes, which could require that we conduct bridging studies between our prior clinical supply used in our clinical trials and that of any new manufacturer. We may be unsuccessful in demonstrating the comparability of clinical supplies which could require the conduct of additional clinical trials. Additionally, there is a natural transition period when a new third party commences work. As a result, delays occur, which can materially impact our ability to meet our desired clinical development timelines.

We rely on third parties to manufacture and store our clinical product supplies, and we may have to rely on third parties to produce and process our product candidates, if approved. There can be no assurance that we will be able to establish or maintain relationships with such third parties. We may in the future establish our own manufacturing facility and infrastructure in addition to or in lieu of relying on third parties for the manufacture of our product candidates, which would be costly, time-consuming and which may not be successful.

Our product candidates are manufactured in the United States by third parties, and we manage all other aspects of the supply, including planning, oversight, disposition and distribution logistics. There can be no assurance that we will not experience supply or manufacturing issues in the future.

We have a long-term agreement in place with a CDMO for the manufacture of CER-1236. However, we have not yet caused our product candidates to be manufactured or processed on a commercial scale and may not be able to achieve manufacturing and processing and may be unable to create an inventory of mass-produced product to satisfy demands for any of our product candidates. Our clinical supply will also be limited to small quantities and any latent defects discovered in our supply could significantly delay our development timelines.

In addition, our actual and potential future reliance on a limited number of third-party manufacturers exposes us to the following risks:

Our contract manufacturers would also be subject to the same risks we face in developing our own manufacturing capabilities, as described above. Our current and potential future CDMOs may also be required to shut down in response to the spread of health epidemics or pandemics, or they may prioritize manufacturing for therapies or vaccines for other diseases. In addition, our CDMOs have certain responsibilities for storage of raw materials and in the past have lost or failed to adequately store our raw materials. We will also rely on third parties to store our released product candidates, and any failure to adequately store our product candidates could result in significant delay to our development timelines. Any additional or future damage or loss of raw materials or product candidates could materially impact our ability to manufacture and supply our product candidates. Each of these risks could delay our clinical trials or the approval of any of our product candidates by the FDA or the commercialization of our product candidates or result in higher costs or deprive us of potential product revenue.

In addition, we will rely on third parties to perform release tests on our product candidates prior to delivery to patients. If these tests are not appropriately done and test data are not reliable, patients could be put at risk of serious harm.

We maintain single supply relationships for certain key components, and our business and operating results could be harmed if supply is restricted or ends or the price of raw materials used in our suppliers’ manufacturing process increases.

We are dependent on sole suppliers or a limited number of suppliers for certain components that are integral to our product candidates, including CER-1236. If these or other suppliers encounter financial, operating or other difficulties or if our relationship with them changes, we may be unable to quickly establish or qualify replacement sources of supply and could face production interruptions, delays and inefficiencies. In addition, technology changes by our vendors could disrupt access to required manufacturing capacity or require expensive, time-consuming development efforts to adapt and integrate new equipment or processes. Our growth may exceed the capacity of one or more of these suppliers to produce the needed equipment and materials in sufficient quantities to support our growth. Any one of these factors could harm our business and growth prospects.

Our product candidates rely on the availability of specialty raw materials, which may not be available to us on acceptable terms or at all.

Our product candidates, including CER-1236, require many specialty raw materials, some of which are manufactured by small companies with limited resources and experience to support a commercial product. In addition, those suppliers normally support blood-based hospital businesses and generally do not have the capacity to support commercial products manufactured under cGMP by biopharmaceutical firms. The suppliers may be ill-equipped to support our needs, especially in non-routine circumstances like an FDA inspection or medical crisis, such as widespread contamination. We also do not have contracts with many of these suppliers and may not be able to contract with them on acceptable terms or at all. Accordingly, we may experience delays in receiving key raw materials to support clinical or commercial manufacturing.

In addition, some of our raw materials are currently available from a single supplier, or a small number of suppliers. For example, the type of cell culture media and cryopreservation buffer that we currently use in our manufacturing process for the CER-T cells are available from multiple suppliers, but each version may perform differently, requiring us to characterize them and modify our protocols if we change suppliers. Disruption of our cell manufacturing process may affect product health, fitness, and potentially anti-tumor activity and clinical responses. In addition, the cell processing equipment and tubing that we use in our current manufacturing process is only available from a single supplier. We also use certain biologic materials, including certain activating antibodies, that are available from multiple suppliers, but each version may perform differently, requiring us to characterize them and potentially modify some of our protocols if we change suppliers. We cannot be sure that these suppliers will remain in business, or that they will not be purchased by one of our competitors or another company that is not interested in continuing to produce these materials for our intended purpose. If we are required to change suppliers, the materials may only be available from another supplier on terms that are less favorable to us than the terms under which we currently obtain the materials. Accordingly, if we no longer have access to these suppliers, we may experience delays in our clinical or commercial manufacturing which could harm our business or results of operations.

If we or our third-party suppliers use hazardous, non-hazardous, biological or other materials in a manner that causes injury or violates applicable law, we may be liable for damages.

Our R&D activities involve the controlled use of potentially hazardous substances, including chemical and biological materials. We and our suppliers are subject to federal, state and local laws and regulations in the United States governing the use, manufacture, storage, handling and disposal of medical and hazardous materials. Although we believe that we and our suppliers’ procedures for using, handling, storing and disposing of these materials comply with legally prescribed standards, we and our suppliers cannot completely eliminate the risk of contamination or injury resulting from medical or hazardous materials. As a result of any such contamination or injury, we may incur liability or local, city, state or federal authorities may curtail the use of these materials and interrupt our business operations. In the event of an accident, we could be held liable for damages or penalized with fines, and the liability could exceed our resources. We do not have any insurance for liabilities arising from medical or hazardous materials. In addition, any violation in the use, manufacture, storage, handling and disposal under foreign law may subject us to additional liability.

Compliance with applicable environmental laws and regulations is expensive, and current or future environmental regulations may impair our research, development and production efforts, which could harm our business, prospects, financial condition or results of operations.

Risks Related to Government and Regulation

Clinical development and the regulatory approval process involve a lengthy and expensive process with an uncertain outcome and results of earlier studies and preclinical data, and trials may not be predictive of future clinical trial results. If our preclinical studies and clinical trials are not sufficient to support regulatory approval of any of our product candidates, we may incur additional costs or experience delays in completing, or ultimately be unable to complete, the development of such product candidate.

The research, testing, manufacturing, labeling, licensure, sale, marketing and distribution of biological products are subject to extensive regulation by the FDA and other regulatory authorities in the United States and other countries, and such regulations differ from country to country. We are not permitted to market our product candidates in the United States or in any foreign countries until they receive the requisite licensure from the applicable regulatory authorities of such jurisdictions. We have not previously submitted a BLA to the FDA or similar licensure applications to comparable foreign regulatory authorities. A BLA must include extensive preclinical and clinical data and supporting information to establish the product candidate’s safety, purity and potency for each desired indication. The BLA must also include significant information regarding the manufacturing controls for the product. We expect the novel nature of our product candidates to create further challenges in obtaining regulatory approval. Accordingly, the regulatory approval pathway for our product candidates may be uncertain, complex, expensive and lengthy, and licensure may not be obtained.

We cannot be certain that our preclinical studies and clinical trial results will be sufficient to support regulatory approval of our product candidates. Clinical testing is expensive and can take many years to complete and its outcome is inherently uncertain. Human clinical trials are expensive and difficult to design and implement, in part because they are subject to rigorous regulatory requirements. Failure or delay can occur at any time during the clinical trial process.

We may experience delays in obtaining the FDA’s authorization to initiate clinical trials under future INDs and completing ongoing clinical studies of our product candidates due to a variety of factors. Additionally, we cannot be certain that preclinical studies or clinical trials for our product candidates will begin on time, not require redesign, enroll an adequate number of subjects on time, or be completed on schedule, if at all. Clinical trials can be delayed or terminated for a variety of reasons, including delays or failures related to:

We may experience numerous adverse or unforeseen events during, or as a result of, preclinical studies and clinical trials that could delay or prevent our ability to receive marketing approval or commercialize our product candidates, including:

If we are required to conduct additional clinical trials or other testing of our product candidates beyond those that we currently contemplate, if we are unable to successfully complete clinical trials of our product candidates or other testing, if the results of these trials or tests are not positive or are only moderately positive or if there are safety concerns, our business and results of operations may be adversely affected and we may incur significant additional costs. In addition, costs to treat patients with relapsed or refractory cancer and to treat potential side effects that may result from our product candidates can be significant. Accordingly, our clinical trial costs are likely to be significantly higher than those for more conventional therapeutic technologies or drug product candidates.

We could also encounter delays if a clinical trial is suspended or terminated by us, by the IRBs of the institutions in which such clinical trials are being conducted, by the Data Safety Monitoring Board for such clinical trial or by the FDA or other regulatory authorities. Such authorities may suspend or terminate a clinical trial due to a number of factors, including failure to conduct the clinical trial in accordance with regulatory requirements or our clinical trial protocols, inspection of the clinical trial operations or trial site by the FDA or other regulatory authorities resulting in the imposition of a clinical hold, unforeseen safety issues or adverse side effects, failure to demonstrate a benefit from the product candidates, changes in governmental regulations or administrative actions or lack of adequate funding to continue the clinical trial. For example, in July 2024, we announced a clinical hold as a result of insufficient data provided with regard to two issues within pharmacology and toxicology of CER-1236. In November 2024, we announced that the clinical hold was resolved and that the FDA had cleared our IND for Phase 1 clinical trials.

Any delay in obtaining, or inability to obtain, applicable regulatory approval would delay or prevent commercialization of our product candidates and would materially adversely impact our business and prospects and our ability to generate revenues from any of these product candidates will be delayed or not realized at all. In addition, many of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of our product candidates. If one or more of our product candidates generally prove to be ineffective, unsafe or commercially unviable, our CER-T cell platform would have little, if any, value, which would have a material and adverse effect on our business, financial condition, results of operations and prospects.

Any of these factors, many of which are beyond our control, may result in our failing to obtain regulatory approval to market any of our product candidates, or a delay in such approval, which would significantly harm our business, results of operations, and prospects. Of the large number of biological products in development, only a small percentage successfully complete the FDA or other regulatory approval processes and are commercialized. Even if we eventually complete clinical testing and receive licensure from the FDA or applicable foreign regulatory authorities for any of our product candidates, the FDA or the applicable foreign regulatory may license our product candidates for a more limited indication or a narrower patient population than we originally requested, and the FDA, or applicable foreign regulatory agency, may not license our product candidates with the labeling that we believe is necessary or desirable for the successful commercialization of such product candidates.

Our manufacturing process needs to comply with FDA regulations relating to the quality and reliability of such processes. Any failure to comply with relevant regulations could result in delays in or termination of our clinical programs and suspension or withdrawal of any regulatory approvals.

In order to commercially produce our products at a third party’s facility, we will need to comply with the FDA’s cGMP regulations and guidelines, including cGTPs. We may encounter difficulties in achieving quality control and quality assurance and may experience shortages in qualified personnel. We are subject to inspections by the FDA and comparable foreign regulatory authorities to confirm compliance with applicable regulatory requirements. Any failure to follow cGMP, cGTP or other regulatory requirements or delay, interruption or other issues that arise in the manufacture, fill-finish, packaging, or storage of our CER-T cells as a result of a failure of the facilities or operations of third parties to comply with regulatory requirements or pass any regulatory authority inspection could significantly impair our ability to develop and commercialize our CER-T cell programs, including leading to significant delays in the availability of our CER-T cells for our clinical trials or the termination of or suspension of a clinical trial, or the delay or prevention of a filing or approval of marketing applications for our CER-T cell product candidates. Significant non-compliance could also result in the imposition of sanctions, including warning or untitled letters, fines, injunctions, civil penalties, failure of regulatory authorities to grant marketing approvals for our CER-T cell product candidates, delays, suspension or withdrawal of approvals, license revocation, seizures or recalls of products, operating restrictions and criminal prosecutions, any of which could damage our reputation and our business.

Even if we receive regulatory approval for any of our product candidates, we will be subject to ongoing obligations and continued regulatory review, which may result in significant additional expense. Additionally, our product candidates, if approved, could be subject to labeling and other restrictions and market withdrawal and we may be subject to penalties if we fail to comply with regulatory requirements or experience unanticipated problems with our products.

If the FDA, EMA or any other comparable regulatory authority approves any of our product candidates, the manufacturing processes, labeling, packaging, distribution, adverse event reporting, storage, advertising, promotion and recordkeeping for the product will be subject to extensive and ongoing regulatory requirements. These requirements include submissions of safety and other post-marketing information and reports, registration requirements, applicable product tracking and tracing requirements and continued compliance with cGMPs, including cGTPs, and GCP, for any clinical trials that we conduct post-approval. Later discovery of previously unknown problems with a product, including adverse events of unanticipated severity or frequency, or with any future potential manufacturing facilities we may own, third-party manufacturers or manufacturing processes, or failure to comply with regulatory requirements, may result in, among other things:

Moreover, if any of our product candidates are approved, our product labeling, advertising and promotion will be subject to regulatory requirements and continuing regulatory review. The FDA strictly regulates the promotional claims that may be made about biopharmaceutical products. In particular, a product may not be promoted for uses that are not approved by the FDA as reflected in the product’s approved labeling.

Any government investigation of alleged violations of law could require us to expend significant time and resources in response and could generate negative publicity. The occurrence of any event or penalty described above may inhibit our or our collaborators’ ability to commercialize our product candidates, and harm our business, financial condition and results of operations.

In addition, the policies of the FDA, the EMA and other comparable regulatory authorities may change and additional government regulations may be enacted that could prevent, limit or delay regulatory approval of our product candidates. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we are not able to maintain regulatory compliance, we may lose any marketing approval that we may have obtained, which would adversely affect our business, prospects and ability to achieve or sustain profitability.

We also cannot predict the likelihood, nature or extent of government regulation that may arise from future legislation or administrative or executive action, either in the United States or abroad. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements, or if we are unable to maintain regulatory compliance, marketing approval that has been obtained may be lost and we may not achieve or sustain profitability.

Regulatory requirements in the United States and abroad governing cell therapy products have changed frequently and may continue to change in the future, which could negatively impact our ability to complete clinical trials and commercialize our product candidates in a timely manner, if at all.

Regulatory requirements in the United States and abroad governing cell therapy products have changed frequently and may continue to change in the future. In 2016, the FDA established the Office of Tissues and Advanced Therapies (“OTAT”) within its Center for Biologics Evaluation and Research to consolidate the review of gene therapy and related products, and has established the Cellular, Tissue and Gene Therapies Advisory Committee, among others, to advise this review. In September 2022, the FDA announced retitling of OTAT to the Office of Therapeutic Products (“OTP”) and elevation of OTP to a “Super Office” to meet its growing cell and gene therapy workload. In addition, under guidelines issued by the National Institute of Health (the “NIH”), gene therapy clinical trials are also subject to review and oversight by an institutional biosafety committee (“IBC”), a local institutional committee that reviews and oversees research utilizing recombinant or synthetic nucleic acid molecules at that institution. Before a clinical trial can begin at any institution, that institution’s institutional review board, or IRB, and its IBC assesses the safety of the research and identifies any potential risk to public health or the environment. While the NIH guidelines are not mandatory unless the research in question is being conducted at or sponsored by institutions receiving NIH funding of recombinant or synthetic nucleic acid molecule research, many companies and other institutions not otherwise subject to the NIH guidelines voluntarily follow them. Moreover, serious adverse events or developments in clinical trials of gene therapy product candidates conducted by others may cause the FDA or other regulatory bodies to initiate a clinical hold on our clinical trials or otherwise change the requirements for approval of any of our product candidates. Although the FDA decides whether individual cell and gene therapy protocols may proceed, the review process and determinations of other reviewing bodies can impede or delay the initiation of a clinical trial, even if the FDA has reviewed the trial and approved its initiation.

We may seek fast track and breakthrough therapy designations or priority review for one or more of our product candidates, but we might not receive such designation or priority review, and even if we do, such designation or priority review may not lead to a faster development or regulatory review or approval process, and does not assure FDA approval of our product candidates. Even if a product qualifies for such designation or priority review, the FDA may later decide that the product no longer meets the conditions for qualification or decide that the time period for FDA review or approval will not be shortened.

We may seek fast track, breakthrough therapy, and/or regenerative medicine advanced therapy designations or priority review for one or more of our product candidates.

The FDA may issue a fast track designation to a product candidate if it is intended, whether alone or in combination with one or more other products, for the treatment of a serious or life-threatening disease or condition, and it demonstrates the potential to address unmet medical needs for such a disease or condition. Fast track designation applies to the combination of the product and the specific indication for which it is being studied. The sponsor of a new biologic may request that the FDA designate the biologic as a fast track product at any time during the clinical development of the product. For fast track products, sponsors may have greater interactions with the FDA during product development. A fast track product may also be eligible for rolling review, where the FDA may consider for review sections of the BLA on a rolling basis before the complete application is submitted, if the sponsor provides a schedule for the submission of the sections of the BLA, the FDA agrees to accept sections of the BLA and determines that the schedule is acceptable, and the sponsor pays any required user fees upon submission of the first section of the BLA. However, the FDA’s goal for reviewing a BLA fast track application under the PDUFA does not begin until the last section of the application is submitted. Fast track designation may be withdrawn by the FDA if the FDA believes that the designation is no longer supported by data emerging in the clinical trial process.

A breakthrough therapy is defined as a product candidate that is intended, alone or in combination with one or more other drugs, to treat a serious or life-threatening disease or condition, and preliminary clinical evidence indicates that the product candidate may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints, such as substantial treatment effects observed early in clinical development. For product candidates that have been designated as breakthrough therapies, interaction and communication between the FDA and the sponsor of the trial can help to identify the most efficient path for clinical development while minimizing the number of patients placed in ineffective control regimens. Product candidates designated as breakthrough therapies by the FDA are also eligible for priority review if supported by clinical data at the time of the submission of the BLA.

Fast track designation, priority review, and breakthrough therapy designation are within the discretion of the FDA. Accordingly, even if we believe that one of our product candidates meets the criteria for any such designation, the FDA may disagree and instead determine not to make such designation. In any event, the receipt of such designation may expedite the development or approval process, but do not change the standards for approval. Even if a product qualifies for one or more of these programs, the FDA may later decide that the product no longer meets the conditions for qualification or decide that the time period for FDA review or approval will not be shortened.

We may seek approval of our product candidates, where applicable, under the FDA’s accelerated approval pathway. This pathway may not lead to a faster development, regulatory review or approval process and does not increase the likelihood that our product candidates will receive marketing approval.

A product may be eligible for accelerated approval if it is designed to treat a serious or life-threatening disease or condition and generally provides a meaningful advantage over available therapies upon a determination that the product candidate has an effect on a surrogate endpoint or intermediate clinical endpoint that is reasonably likely to predict clinical benefit or on a clinical endpoint that can be measured earlier than irreversible morbidity or mortality, (“IMM”) that is reasonably likely to predict an effect on IMM or other clinical benefit. The FDA considers a clinical benefit to be a positive therapeutic effect that is clinically meaningful in the context of a given disease, such as IMM. For the purposes of accelerated approval, a surrogate endpoint is a marker, such as a laboratory measurement, radiographic image, physical sign or other measure that is thought to predict clinical benefit, but is not itself a measure of clinical benefit. An intermediate clinical endpoint is a clinical endpoint that can be measured earlier than an effect on irreversible morbidity or mortality that is reasonably likely to predict an effect on irreversible morbidity or mortality or other clinical benefit. The accelerated approval pathway may be used in cases in which the advantage of a new drug over available therapy may not be a direct therapeutic advantage, but is a clinically important improvement from a patient and public health perspective. If granted, accelerated approval is usually contingent on the sponsor’s agreement to conduct, in a diligent manner, additional post-approval confirmatory studies to verity and describe the drug’s clinical benefit. Under the FDORA, the FDA is permitted to require, as appropriate, that a post-approval confirmatory study or studies be underway prior to approval or within a specified time period after the date of accelerated approval was granted. FDORA also requires sponsors to send updates to the FDA every 180 days on the status of such studies, including progress toward enrollment targets, and the FDA must promptly post this information publicly. FDORA also gives the FDA increased authority to withdraw approval of a drug or biologic granted accelerated approval on an expedited basis if the sponsor fails to conduct such studies in a timely manner, send the necessary updates to the FDA, or if such post-approval studies fail to verify the drug’s predicted clinical benefit. Under FDORA, the FDA is empowered to take action, such as issuing fines, against companies that fail to conduct with due diligence any post-approval confirmatory study or submit timely reports to the agency on their progress. In addition, the FDA currently requires, unless otherwise informed by the agency, pre-approval of promotional materials for products receiving accelerated approval, which could adversely impact the timing of the commercial launch of the product. Thus, even if we seek to utilize the accelerated approval pathway, we may not be able to obtain accelerated approval and, even if we do, we may not experience a faster development, regulatory review or approval process for that product. There can be no assurance that the FDA would allow any of the product candidates we may develop to proceed on an accelerated approval pathway, and even if the FDA did allow such pathway, there can be no assurance that such submission or application will be accepted or that any expedited development, review or approval will be granted on a timely basis, or at all. Moreover, even if we received accelerated approval, any post-approval studies required to confirm and verify clinical benefit may not show such benefit, which could lead to withdrawal of any approvals we have obtained. Receiving accelerated approval does not assure that the product’s accelerated approval will eventually be converted to a traditional approval.

We may not be able to obtain orphan drug exclusivity for one or more of our product candidates, and even if we do, that exclusivity may not prevent the FDA from approving other competing products.

Regulatory authorities may designate drugs for relatively small patient populations as “orphan” drugs. Generally, if a product with an orphan drug designation subsequently receives the first marketing approval for the indication for which it has such designation, the product is entitled to a period of market exclusivity, which, subject to certain exceptions, precludes the FDA from approving another marketing application for the same drug for the same indication for that time period. The applicable market exclusivity period is seven years in the United States.

Obtaining orphan drug exclusivity for our product candidates may be important to our commercial strategy. If a competitor obtains orphan drug exclusivity for and approval of a product with the same indication as our product candidates before we do, and if the competitor’s product is the same drug or a similar medicinal product as ours, we could be excluded from the market. Even if we obtain orphan drug exclusivity after FDA approval, we may not be able to maintain it. For example, if a competitive product that is the same drug or a similar medicinal product as our product candidate is shown to be clinically superior to our product candidate, any orphan drug exclusivity we have obtained will not block the approval of such competitive product. In addition, orphan drug exclusivity will not prevent the approval of a product that is the same drug as our product candidates if the FDA finds that we cannot assure the availability of sufficient quantities of the drug to meet the needs of the persons with the disease or condition for which the drug was designated. If one or more of these events occur, it could have a material adverse effect on our company.

We are subject to stringent and changing privacy laws, regulations and standards as well as policies, contracts and other obligations related to data privacy and security. Our actual or perceived failure to comply with such obligations could lead to enforcement or litigation (that could result in fines or penalties), a disruption of clinical trials or commercialization of products, reputational harm, or other adverse business effects.

In the ordinary course of business, we will collect, receive, store, process, use, generate, transfer, disclose, make accessible, protect, secure, dispose of, transmit and share (collectively, processing) personal data and other sensitive information, including, but not limited to, proprietary and confidential business information, trade secrets, intellectual property, and information we collect about patients in connection with clinical trials. Accordingly, we are, or may become, subject to numerous federal, state, local and international data privacy and data security laws, regulations, guidance, and industry standards as well as external and internal privacy and data security policies, contracts and other obligations that apply to our processing of personal data and the processing of personal data on our behalf.

In the United States, federal, state, and local governments have enacted numerous data privacy and security laws, including data breach notification laws, personal data privacy laws, consumer protection laws and other similar laws (e.g., unfair or deceptive acts or practices pursuant to Section 5(a) of the Federal Trade Commission Act). For example, HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act (“HITECH”), and their respective implementing regulations, imposes requirements relating to the privacy, security and transmission of protected health information. Among other things, HITECH, through its implementing regulations, makes certain of HIPAA’s privacy and security standards directly applicable to business associates, defined as a person or organization, other than a member of a covered entity’s workforce, that creates, receives, maintains or transmits protected health information for or on behalf of a covered entity for a function or activity regulated by HIPAA as well as their covered subcontractors.

In addition, the California Consumer Privacy Act (“CCPA”), as amended by the California Privacy Rights Act, applies to personal information of consumers, business representatives, and employees, and creates individual privacy rights and places increased privacy and security obligations on entities handling personal data of consumers or households. The CCPA requires covered companies to provide disclosures to California consumers, affords California residents certain rights related to their personal data, including the right to opt-out of certain sales of personal data, and allow for a private cause of action for certain data breaches. The CCPA also created a new state regulatory agency to implement and enforce the law. Although there are limited exemptions for clinical trial data under the CCPA, as our business progresses, the CCPA may become applicable and significantly impact our business activities and exemplifies the vulnerability of our business to evolving regulatory environment related to personal data and protected health information. In addition, several other states have also passed comprehensive privacy laws, and similar laws are being considered in additional states, as well as at the federal and local levels. While these states, like the CCPA, also exempt some data processed in the context of clinical trials, these developments further complicate compliance efforts, and increase legal risk and compliance costs for us and the third parties upon whom we rely. Moreover, some states, such as Washington, Nevada and Connecticut, adopted legislation protecting consumer health information specifically. Washington’s My Health My Data Act, which is now in effect, features a private right of action, heightening noncompliance risks.

Outside the United States, there are an increasing number of laws, regulations and industry standards concerning privacy, data protection, information security and cross-border personal data transfers. For example, GDPR, UK GDPR, and China’s Personal Information Protection Law impose strict requirements for processing personal data. Failure to comply with the requirements of the GDPR and the applicable national data protection laws of the European Union Member States may result in fines of up to €20,000,000 or up to 4% of the total worldwide annual turnover of the preceding financial year, whichever is higher, other administrative penalties, and private litigation related to processing of personal data brought by classes of data subjects or consumer protection organizations authorized at law to represent their interests. If we cannot implement a valid compliance mechanism for cross-border data transfers, we may face increased exposure to regulatory actions, substantial fines, and injunctions against processing or transferring personal data from Europe or other foreign jurisdictions. The inability to import personal data to the United States could significantly and negatively impact our business operations, including by limiting our ability to conduct clinical trial activities in Europe and elsewhere; limiting our ability to collaborate with parties that are subject to such cross-border data transfer or localization laws; or requiring us to increase our personal data processing capabilities and infrastructure in foreign jurisdictions at significant expenses. European regulators have also ordered certain companies to suspend or permanently cease certain transfers out of Europe for allegedly violating the GDPR’s cross-border data transfer limitations.

In addition, privacy advocates and industry groups have proposed, and may propose, standards with which we are legally or contractually bound to comply. We are also bound by contractual obligations related to data privacy and security, and our efforts to comply with such obligations may not be successful. If any of our privacy policies or related materials or statements are found to be deficient, lacking in transparency, deceptive, unfair, or misrepresentative of our practices, we may be subject to investigation, enforcement actions by regulators or other adverse consequences.

Our obligations related to data privacy and security are quickly changing in an increasingly stringent fashion, creating some uncertainty as to the effective future legal framework. Additionally, these obligations may be subject to differing applications and interpretations, which may be inconsistent or conflict among jurisdictions. As a result, preparing for and complying with these obligations requires significant resources and may necessitate changes to our information technologies, systems and practices, as well as those of any third-party collaborators, service providers, contractors, consultants or other third parties that process personal data on our behalf.

Although we endeavor to comply with all applicable privacy and security obligations, we may at times fail to do so or may be perceived to have failed to do so. Moreover, despite our efforts, we may not be successful in achieving compliance if our employees, third-party collaborators, service providers, contractors or consultants fail to comply with such obligations, which could negatively impact our business operations and compliance posture. For example, any failure by a third-party service provider to comply with applicable law, regulations, or contractual obligations could result in adverse effects, including inability to or interruption in our ability to operate our business and proceedings against us by governmental entities or others. If we fail, or are perceived to have failed, to address or comply with obligations related to data privacy and security obligations, we could face significant consequences. These consequences may include, but are not limited to, government enforcement actions (e.g., investigations, fines, penalties, audits and inspections, and similar); litigation (including class-related claims); additional reporting requirements and/or oversight; temporary or permanent bans on all or some processing of personal data; orders to destroy or not use personal data; and imprisonment of company officials. Any of these events could have a material adverse effect on our reputation, business, or financial condition.

Regulators and legislators in the U.S. are increasingly scrutinizing and restricting certain personal data transfers and transactions involving foreign countries. For example, Executive Order 14117 of February 28, 2024, Preventing Access to Americans’ Bulk Sensitive Personal Data and United States Government-Related Data by Countries of Concern, as implemented by U.S. Department of Justice, prohibits data brokerage transactions involving certain sensitive personal data categories, including health data, genetic data, and biospecimens, to countries of concern, including China. The regulations also restrict certain investment agreements, employment agreements and vendor agreements involving such data and countries of concern, absent specified cybersecurity controls. Actual or alleged violations of these regulations may be punishable by criminal and/or civil sanctions, and may result in exclusion from participation in federal and state programs.

Like many companies, we may use artificial intelligence and machine learning (AI) technologies, including generative AI, to efficiently grow and manage our business. These technologies have increasingly been the focus of attention for lawmakers and regulators around the globe.

The use of new and evolving technologies, such as artificial intelligence (AI), in our offerings may result in spending material resources and presents risks and challenges that can impact our business including by posing security and other risks to our confidential information, proprietary information and personal information, and as a result we may be exposed to reputational harm and liability.

We may continue to build and integrate AI into our offerings, and this innovation presents risks and challenges that could affect its adoption, and therefore our business. The use of certain artificial intelligence technology can give rise to intellectual property risks, including compromises to proprietary intellectual property and intellectual property infringement. Additionally, we expect to see increasing government and supranational regulation related to artificial intelligence use and ethics, which may also significantly increase the burden and cost of research, development and compliance in this area. For example, the European Union’s Artificial Intelligence Act (“AI Act”) has now entered into force . This sweeping legislation, with broad extraterritorial reach, imposes significant obligations on providers and deployers of high risk artificial intelligence systems, and encourages providers and deployers of artificial intelligence systems to account for EU ethical principles in their development and use of these systems. If we develop or deploy AI systems that are governed by the AI Act, we may be required to adopt higher standards of data quality, transparency, and human oversight, and adhere to specific and potentially burdensome and costly ethical, accountability, and administrative requirements.

Likewise, in the U.S., several states, including Colorado and California, passed laws that will take effect in 2026, to regulate various uses of artificial intelligence, including to make consequential decisions. In addition, various federal regulators have issued guidance and focused enforcement efforts on the use of AI in regulated sectors. The U.S. Food and Drug Administration, for example, issued guidance on the use of artificial intelligence in medical devices, requiring detailed risk management and review processes to obtain approvals. If we develop or use AI systems governed by these laws or regulations, we will need to meet higher standards of data quality, transparency, monitoring and human oversight, and we would need to adhere to specific and potentially burdensome and costly ethical, accountability, and administrative requirements, with the potential for significant enforcement or litigation in the event of any perceived non-compliance.

The rapid evolution of AI will require the application of significant resources to design, develop, test and maintain our products and services to help ensure that AI is implemented in accordance with applicable law and regulation and in a socially responsible manner and to minimize any real or perceived unintended harmful impacts. Our vendors may in turn incorporate AI tools into their own offerings, and the providers of these AI tools may not meet existing or rapidly evolving regulatory or industry standards, including with respect to privacy and data security. Further, bad actors around the world use increasingly sophisticated methods, including the use of AI, to engage in illegal activities involving the theft and misuse of personal information, confidential information and intellectual property. Any of these effects could damage our reputation, result in the loss of valuable property and information, cause us to breach applicable laws and regulations, and adversely impact our business.

The impact of recent healthcare reform legislation and other changes in the healthcare industry and in healthcare spending on us is currently unknown, and may adversely affect our business model.

Our revenue prospects could be affected by changes in healthcare spending and policy in the United States and abroad. We operate in a highly regulated industry and new laws, regulations or judicial decisions, or new interpretations of existing laws, regulations or decisions, related to healthcare availability, the method of delivery or payment for healthcare products and services could negatively impact our business, operations and financial condition.

There have been, and likely will continue to be, legislative and regulatory proposals at the foreign, federal and state levels directed at broadening the availability of healthcare and containing or lowering the cost of healthcare. For more information, see the section of this report titled “Business – Healthcare Laws and Regulations – Healthcare Reform.”

The continuing efforts of the government, insurance companies, managed care organizations and other payors of healthcare services to contain or reduce costs of healthcare and/or impose price controls may adversely affect:

Any reduction in reimbursement from Medicare or other government programs may result in a similar reduction in payments from private payors, which may adversely affect our future profitability.

Our business could be negatively impacted by environmental, social and corporate governance matters or our reporting of such matters.

Investors have increased their emphasis on the environmental, social and governance (“ESG”) practices of companies across all industries, including the environmental impact of operations and human capital management. Expectations regarding voluntary ESG initiatives and disclosures may result in increased costs (including but not limited to increased costs related to compliance, stakeholder engagement, contracting and insurance), enhanced compliance or disclosure obligations, or other adverse impacts to our business, financial condition, or results of operations.

While we have internal efforts directed at ESG matters and preparations for any increased required future disclosures, such initiatives may be costly and may not have the desired effect. We may be perceived to be not acting responsibly in connection with these matters, which could negatively impact us. Moreover, we may not be able to successfully complete such initiatives due to factors that are within or outside of our control. Even if this is not the case, our actions may subsequently be determined to be insufficient by various stakeholders, and we may be subject to investor or regulator engagement on our ESG efforts, even if such initiatives are currently voluntary. In addition, investor or regulatory expectations for ESG practices may change materially as a result of the change in presidential administration and executive orders issued thereby restricting the implementation of diversity, equity and inclusion programs and we may be unable to adapt to such changes in a timely manner and/or without substantial cost.

Certain market participants, including major institutional investors and capital providers, use third-party benchmarks and scores to assess companies’ ESG profiles in making investment or voting decisions. A failure to comply with investor expectations and standards, which are evolving and vary considerably, or the perception that we have not responded appropriately to the growing concern for ESG issues, could result in reputational harm to our business and could have an adverse effect on us. To the extent ESG matters negatively impact our reputation, it may also negatively impact our share price as well as our access to and cost of capital and impede our ability to compete as effectively to attract and retain employees, which may adversely impact our operations.

Our ability to utilize our net operating loss carryforwards and certain other tax attributes may be limited.

Under current law, federal net operating losses incurred in tax years beginning after December 31, 2017, may be carried forward indefinitely, but the deductibility of such federal net operating losses is limited to 80% of taxable income. It is uncertain if and to what extent various states will conform to federal tax laws. Under Sections 382 and 383 of the Code, and corresponding provisions of state law, if a corporation undergoes an “ownership change” (generally defined as a greater than 50 percentage point change (by value) in the equity ownership of certain stockholders over a rolling three-year period), the corporation’s ability to use its pre-change net operating loss carryforwards and other pre-change tax attributes to offset its post-change income or taxes may be limited. We have not yet completed a Section 382 or Section 383 analysis, and therefore, there can be no assurances that any previously experienced ownership changes have not materially limited our utilization of affected net operating loss carryforwards or other tax attributes. We may experience ownership changes in the future as a result of shifts in our stock ownership. We anticipate incurring significant additional net losses for the foreseeable future, and our ability to utilize net operating loss carryforwards associated with any such losses to offset future taxable income may be limited to the extent we incur future ownership changes. In addition, at the state level, there may be periods during which the use of net operating loss carryforwards is suspended or otherwise limited, which could accelerate or permanently increase state taxes owed. As a result, we may be unable to use all or a material portion of our net operating loss carryforwards and other tax attributes, which could adversely affect our future cash flows.

Changes in tax laws or regulations that are applied adversely to us or our customers may have a material adverse effect on our business, cash flow, financial condition or results of operations.

New income, sales, use or other tax laws, statutes, rules, regulations or ordinances could be enacted at any time, which could adversely affect our business operations and financial performance. Further, existing tax laws, statutes, rules, regulations or ordinances could be interpreted, changed, modified or applied adversely to us. For example, the Trump administration has proposed various U.S. federal tax law changes, which if enacted could have a material impact on our business, cash flows, financial condition or results of operations. In addition, it is uncertain if and to what extent various states will conform to federal tax laws. Future tax reform legislation could have a material impact on the value of our deferred tax assets, could result in significant one-time charges, and could increase our future U.S. tax expense.

Even if we obtain FDA approval of any of our product candidates, we may never obtain approval or commercialize such products outside of the United States, which would limit our ability to realize their full market potential.

In order to market any products outside of the United States, we must establish and comply with numerous and varying regulatory requirements of other countries regarding safety and efficacy. Clinical trials conducted in one country may not be accepted by regulatory authorities in other countries, and regulatory approval in one country does not mean that regulatory approval will be obtained in any other country. Approval procedures vary among countries and can involve additional product testing and validation and additional administrative review periods.

Seeking foreign regulatory approvals could result in significant delays, difficulties and costs for us and may require additional preclinical studies or clinical trials which would be costly and time consuming. Regulatory requirements can vary widely from country to country and could delay or prevent the introduction of our products in those countries. Satisfying these and other regulatory requirements is costly, time consuming, uncertain and subject to unanticipated delays. In addition, our failure to obtain regulatory approval in any country may delay or have negative effects on the process for regulatory approval in other countries. We do not have any product candidates approved for sale in any jurisdiction, including international markets, and we do not have experience in obtaining regulatory approval in international markets. If we fail to comply with regulatory requirements in international markets or to obtain and maintain required approvals, our ability to realize the full market potential of our products will be harmed.

Our business operations and current and future relationships with healthcare professionals, principal investigators, consultants, customers and third-party payors in the United States and elsewhere may be subject, directly or indirectly, to applicable anti-kickback, fraud and abuse, false claims, physician payment transparency, health information privacy and security and other healthcare laws and regulations, which could expose us to substantial penalties.

Healthcare providers, physicians and third-party payors in the United States and elsewhere will play a primary role in the recommendation and prescription of any product candidates for which we obtain marketing approval. Our current and future arrangements with healthcare professionals, principal investigators, consultants, customers and third-party payors may expose us to broadly applicable fraud and abuse and other healthcare laws, including, without limitation, the U.S. federal Anti-Kickback Statute and the U.S. federal False Claims Act, that may constrain the business or financial arrangements and relationships through which we sell, market and distribute any product candidates for which we obtain marketing approval. In addition, we may be subject to physician payment transparency laws and patient privacy and security regulation by the U.S. federal government and by the states and foreign jurisdictions in which we conduct our business. For more information, see the section of this report titled “Business – Healthcare Laws and Regulations.”

Because of the breadth of these laws and the narrowness of their exceptions and safe harbors, it is possible that our business activities can be subject to challenge under one or more of such laws. The scope and enforcement of each of these laws is uncertain and subject to rapid change in the current environment of healthcare reform. Federal and state enforcement bodies have continued their scrutiny of interactions between healthcare companies and healthcare providers, which has led to a number of significant investigations, prosecutions, convictions and settlements in the healthcare industry.

Efforts to ensure that our internal operations and future business arrangements with third parties will comply with applicable healthcare laws and regulations will involve substantial costs. If our operations are found to be in violation of any of these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, including, without limitation, damages, monetary fines, imprisonment, disgorgement of profits, possible exclusion from participation in Medicare, Medicaid and other federal healthcare programs, contractual damages, reputational harm, diminished profits and future earnings, additional reporting or oversight obligations if we become subject to a corporate integrity agreement or other agreement to resolve allegations of non-compliance with the law and curtailment or restructuring of our operations, any of which could adversely affect our ability to operate our business and pursue our strategy. If any of the physicians or other healthcare providers or entities with whom we expect to do business, including future collaborators, are found not to be in compliance with applicable laws, they may be subject to criminal, civil or administrative sanctions, including exclusions from participation in government healthcare programs, which could also affect our business.

If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that could have a material adverse effect on the success of our business.

We are subject to numerous environmental, health and safety laws and regulations, including those governing laboratory procedures and the handling, use, storage, treatment and disposal of hazardous materials and wastes. Our operations involve the use of hazardous and flammable materials, including chemicals and biological and radioactive materials. Our operations also produce hazardous waste products. We generally contract with third parties for the disposal of these materials and wastes. We cannot eliminate the risk of contamination or injury from these materials. In the event of contamination or injury resulting from our use of hazardous materials, we could be held liable for any resulting damages, and any liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and penalties.

Although we maintain workers’ compensation insurance to cover us for costs and expenses we may incur due to injuries to our employees resulting from the use of hazardous materials, this insurance may not provide adequate coverage against potential liabilities. We do not maintain insurance for environmental liability or toxic tort claims that may be asserted against us in connection with our storage or disposal of biological, hazardous or radioactive materials.

We may be affected by regulatory responses to climate-related issues.

The Biden administration made climate change and the limitation of greenhouse gas (“GHG”) emissions one of its primary objectives. Although the Trump administration is expected to reverse such priorities, several states and other geographic regions in the United States have also adopted legislation and regulations to reduce emissions of GHGs.

On March 6, 2024, the SEC finalized new rules for public companies that would require extensive climate-related disclosures and significant analysis of the impact of climate-related issues on our business strategy, results of operations, and financial condition (the “SEC Climate Disclosure Rules”). Following court challenges initiated during the Biden administration and while the SEC was led by former Chairman Gensler that resulted in the indefinite delay in implementation of the SEC Climate Disclosure Rules, on March 27, 2025, the SEC announced that it had voted to end its defense of such rules in court. Nevertheless, if the SEC or state regulatory authorities were to seek to impose such rules in the future, our legal, accounting and other compliance expenses would increase significantly. . We may also be exposed to legal or regulatory action or claims as a result of any such new regulations. All of these risks could have a material adverse effect on our business, financial position, and/or stock price.

Risks Related to Intellectual Property

Our intellectual property rights are valuable, and any inability to protect them could reduce the value of our products, services and brand.

The loss of any procured intellectual property rights in our products could permit our competitors to manufacture their own version of our products. We have attempted to protect our intellectual property rights in our products through a combination of patents, confidentiality agreements, non-compete agreements and other contractual protection mechanisms, and we will continue to do so. While we intend to defend against threats to our intellectual property, our patents or various contractual protections may not adequately protect our intellectual property. In addition, we could be required to expend significant resources to defend our rights to proprietary information, and may not be successful in such defense.

As such, we may not be successful in preventing third parties from infringing, copying or misappropriating our intellectual property. There can also be no assurance that pending patent applications owned by us will result in patents being issued to us, that patents issued to or licensed by us in the past or in the future will not be challenged or circumvented by competitors or that such patents will be found to be valid or sufficiently broad to protect our products or to provide us with any competitive advantage. Third parties could also obtain patents that may require us to negotiate to obtain licenses to conduct our business, and any required licenses may not be available on reasonable terms or at all. We also rely on confidentiality and non-compete agreements with certain employees, independent distributors, consultants and other parties to protect, in part, trade secrets and other proprietary rights. There can be no assurance that these agreements will not be breached, that we will have adequate remedies for any breach, that others will not independently develop substantially equivalent proprietary information or that third parties will not otherwise gain access to our trade secrets or proprietary knowledge.

It is difficult and costly to protect our proprietary rights, and we may not be able to ensure their protection. We cannot assure investors that any of the currently pending or future patent applications will result in granted patents, nor can we predict how long it will take for such patents to be granted.

Our commercial success will depend in part on us obtaining and maintaining patent protection and trade secret protection of our current and future product candidates, as well as successfully defending these patents against third-party challenges. Our ability to stop third parties from making, using, selling, offering to sell or importing our product candidates is dependent upon the extent to which we have rights under valid and enforceable patents or trade secrets that cover these activities and the right under our licensed patents to contest alleged infringement.

The patent positions of biotechnology and pharmaceutical companies can be highly uncertain and involve complex legal and factual questions for which important legal principles remain unresolved. No consistent policy regarding the breadth of claims allowed in pharmaceutical patents has emerged to date in the United States or in many jurisdictions outside of the United States. Changes in either the patent laws or interpretations of patent laws in the United States and other countries may diminish the value of our owned or licensed intellectual property. Accordingly, we cannot predict the breadth of claims that may be enforced in the patents that may be issued from the applications we currently or may in the future own or license from third parties. Further, if any patents we obtain or license are deemed invalid or unenforceable, our ability to commercialize or license our technology could be adversely affected.

Others have filed, and in the future are likely to file, patent applications covering products and technologies that are similar, identical or competitive to ours or important to our business. We cannot be certain that any patent application owned by a third party will not have priority over patent applications filed or in-licensed by us, or that we will not be involved in interference, opposition or invalidity proceedings before U.S. or non-U.S. patent offices.

The degree of future protection for our proprietary rights is uncertain because legal means afford only limited protection and may not adequately protect our rights or permit us to gain or keep our competitive advantage. For example:

Should any of these events occur, they could significantly harm our business, results of operations and prospects.

Without patent protection on the composition of matter of our product candidates, our ability to assert our patents to stop others from using or selling our product candidates in a non-pharmaceutically acceptable formulation may be limited.

Due to the patent laws of a country, or the decisions of a patent examiner in a country, or our own filing strategies, we may not obtain patent coverage for all of our product candidates or methods involving these candidates in parent patent applications. We may have to pursue divisional patent applications or continuation patent applications in the United States and other countries to obtain claim coverage for inventions which were disclosed but not claimed in parent patent applications.

Moreover, it is possible that our pending patent applications will not result in granted patents, and even if such pending patent applications are granted as patents, they may not provide a basis for intellectual property protection of commercially viable products nor provide us with any competitive advantages. Further, it is possible that, for any of the patents that may be granted in the future, others will design around the patent rights or identify cancer treatment methods that do not concern the rights covered by our patent rights or licenses. Further, we cannot assure investors that other parties will not challenge any patents granted to us or that courts or regulatory agencies will hold our patents to be valid or enforceable. We also cannot guarantee that we will be successful in defending challenges made against our patents. Any successful third-party challenge to our patents could result in the unenforceability or invalidity of such patents, or to such patents being interpreted narrowly or otherwise in a manner adverse to our interests. Our ability to establish or maintain a technological or competitive advantage over our competitors may be diminished because of these uncertainties.

We may also rely on trade secrets to protect our technology, especially where we do not believe patent protection is appropriate or feasible. However, trade secrets are difficult to protect. Although we use reasonable efforts to protect our trade secrets, our employees, consultants, contractors, outside scientific collaborators and other advisors may unintentionally or willfully disclose our information to competitors or other third parties. Enforcing a claim that a third party illegally obtained and is using any of our trade secrets may be expensive and time consuming, and the outcome is unpredictable. In addition, courts outside the United States are sometimes less willing to protect trade secrets. Moreover, our competitors may independently develop equivalent knowledge, methods and know-how.

If we are unable to obtain and maintain patent protection for any products we develop and for our technology, or if the scope of the patent protection obtained is not sufficiently broad, our competitors could develop and commercialize products and technology similar or identical to ours, and our ability to commercialize any product candidates we may develop and our technology may be adversely affected.

Our success depends in large part on our ability to obtain and maintain patent protection in the United States and other countries with respect to our product candidates, their respective components, formulations, combination therapies, methods used to manufacture them and methods of treatment and development that are important to our business. If we do not adequately protect our intellectual property rights, competitors may be able to erode or negate any competitive advantage we may have, which could harm our business and ability to achieve profitability. To protect our proprietary position, we file patent applications in the United States and abroad related to our product candidates that are important to our business; we may in the future also license or purchase patent applications filed by others. If we are unable to secure or maintain patent protection with respect to our technology and any proprietary products and technology we develop, our business, financial condition, results of operations and prospects could be materially harmed.

We cannot provide any assurances that any of our current or future patents have or will include claims with a scope sufficient to protect our current and future product candidates or otherwise provide any competitive advantage. In addition, the laws of foreign countries may not protect our rights to the same extent as the laws of the United States. Furthermore, patents have a limited lifespan. In the United States, the natural expiration of a patent is generally 20 years after its earliest U.S. non-provisional filing date. Various extensions may be available; however, the life of a patent, and the protection it affords, is limited. Given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such candidates might expire before or shortly after such candidates are commercialized. As a result, our intellectual property may not provide us with sufficient rights to exclude others from commercializing products similar or identical to ours. Moreover, some of our patents and patent applications are, and may in the future be, owned by or co-owned with third parties. Any of the foregoing could have a material adverse effect on our competitive position, business, financial conditions, results of operations and prospects.

The patent prosecution process is complex, expensive, time-consuming and inconsistent across jurisdictions. We may not be able to file, prosecute, maintain, enforce, or license all necessary or desirable patent rights at a commercially reasonable cost or in a timely manner. In addition, we may not pursue or obtain patent protection in all relevant markets. It is possible that we will fail to identify important patentable aspects of our R&D efforts in time to obtain any patent protection. While we enter into non-disclosure and confidentiality agreements with parties who have access to confidential or patentable aspects of our R&D efforts, including for example, our employees, former employees, corporate collaborators, external academic scientific collaborators, CROs, contract manufacturers, consultants, advisors and other third parties, any of these parties may breach the agreements and disclose such output before a patent application is filed, thereby endangering our ability to seek patent protection. In addition, publications of discoveries in the scientific and scholarly literature often lag behind the actual discoveries, and patent applications in the United States and other jurisdictions are typically not published until 18 months after filing, or in some cases not at all. Consequently, we cannot be certain that we were the first to file for patent protection on the inventions claimed in our patents or pending patent applications.

The issuance or grant of a patent is not irrefutable as to its inventorship, scope, validity or enforceability, and our patents may be challenged in the courts or patent offices in the United States and abroad. There may be prior art of which we are not aware that may affect the validity or enforceability of a patent claim. There also may be prior art of which we are aware, but which we do not believe affects the validity or enforceability of a claim, which may, nonetheless, ultimately be found to affect the validity or enforceability of a claim. We may in the future, become subject to a third-party pre-issuance submission of prior art or opposition, derivation, revocation, re-examination, post-grant or inter partes review, or interference proceedings or other similar proceedings challenging our patent rights or the patent rights of others in the USPTO or other foreign patent office. An unfavorable determination in any such submission, proceeding or litigation could reduce the scope of or invalidate our patent rights, allow third parties to commercialize our technology or products and compete directly with us, without payment to us, or extinguish our ability to manufacture or commercialize products without infringing third-party patent rights.

Third-party claims of intellectual property infringement may prevent or delay our product discovery and development efforts, and could increase our costs.

Our commercial success depends in part on our avoiding infringement of the patents and proprietary rights of third parties. There is a substantial amount of litigation involving patents and other intellectual property rights in the biotechnology and pharmaceutical industries, as well as administrative proceedings for challenging patents, including interference, reexamination, and post grant review proceedings before the USPTO or oppositions and other comparable proceedings in foreign jurisdictions. We may be exposed to, or threatened with, future litigation by third parties having patent or other intellectual property rights alleging that our product candidates and/or proprietary technologies infringe their intellectual property rights. Numerous U.S. and foreign issued patents and pending patent applications, which are owned by third parties, exist in the fields in which we are developing our product candidates. As the biotechnology and pharmaceutical industries expand and more patents are issued, the risk increases that our product candidates may give rise to claims of infringement of the patent rights of others. Moreover, it is not always clear to industry participants, including us, which patents cover various types of drugs, products or their methods of use or manufacture. Thus, because of the large number of patents issued and patent applications filed in our fields, there may be a risk that third parties allege they have patent rights encompassing our product candidates, technologies or methods.

Third parties may assert that we are employing their proprietary technology without authorization. Generally, conducting preclinical and clinical trials and other development activities in the United States is not considered an act of infringement. If CER-1236 or another product candidate is cleared/approved by the FDA, a third party may then seek to enforce its patent by filing a patent infringement lawsuit against us. While we do not believe that any patent claims that could have a materially adverse effect on the commercialization of our product candidates are valid and enforceable, we may be incorrect in this belief, or we may not be able to prove it in litigation. In this regard, patents issued in the United States by law enjoy a presumption of validity that can be rebutted only with evidence that is “clear and convincing,” a heightened standard of proof. There may be issued third-party patents of which we are currently unaware with claims to compositions, formulations, methods of manufacture or methods for treatment related to the use or manufacture of our product candidates. Patent applications can take many years to issue. There may be currently pending patent applications which may later result in issued patents that our product candidates may infringe. In addition, third parties may obtain patents in the future and claim that use of our technologies infringes upon these patents. Moreover, we may fail to identify relevant patents or incorrectly conclude that a patent is invalid, not enforceable, exhausted, or not infringed by our activities. If any third-party patents were held by a court of competent jurisdiction to cover the manufacturing process of our product candidates, constructs or molecules used in or formed during the manufacturing process, or any final product itself, the holders of any such patents may be able to block our ability to commercialize the product candidate unless we were to obtain a license under the applicable patents, or until such patents expire or they are finally determined to be held invalid or unenforceable. Similarly, if any third-party patent were held by a court of competent jurisdiction to cover aspects of our formulations, processes for manufacture or methods of use, the holders of any such patent may be able to block our ability to develop and commercialize the product candidate unless we were to obtain a license or until such patent expires or is finally determined to be held invalid or unenforceable. In either case, such a license may not be available on commercially reasonable terms or at all. If we are unable to obtain a necessary license to a third-party patent on commercially reasonable terms, or at all, our ability to commercialize our product candidates may be impaired or delayed, which could in turn significantly harm our business. Even if we obtain a license, it may be non-exclusive, thereby giving our competitors access to the same technologies licensed to us. In addition, if the breadth or strength of protection provided by our patents is threatened, it could dissuade companies from collaborating with us to license, develop or commercialize current or future product candidates.

Parties making claims against us may seek and obtain injunctive or other equitable relief, which could effectively block our ability to further develop and commercialize our product candidates. Defense of these claims, regardless of their merit, could involve substantial litigation expense and would be a substantial diversion of employee resources from our business. In the event of a successful claim of infringement against us, we may have to pay substantial damages, including treble damages and attorneys’ fees for willful infringement, obtain one or more licenses from third parties, pay royalties or redesign our infringing products, which may be impossible or require substantial time and monetary expenditure. We cannot predict whether any such license would be available at all or whether it would be available on commercially reasonable terms. Furthermore, even in the absence of litigation, we may need or may choose to obtain licenses from third parties to advance our research or allow commercialization of our product candidates. We may fail to obtain any of these licenses at a reasonable cost or on reasonable terms, if at all. In that event, we would be unable to further develop and commercialize our product candidates, which could harm our business significantly.

We could be found liable for monetary damages, including treble damages and attorneys’ fees, if we are found to have willfully infringed a patent of a third party. A finding of infringement could prevent us from commercializing our product candidates or any future product candidates or force us to cease some of our business operations, which could materially harm our business.

Although we have reviewed certain third-party patents and patent filings that we believe may be relevant to our therapeutic candidates or products, we have not conducted a freedom-to-operate search or analysis for any of our therapeutic candidates or products, and we may not be aware of patents or pending or future patent applications that, if issued, would block us from commercializing our therapeutic candidates or products. Thus, we cannot guarantee that our therapeutic candidates or products, or our commercialization thereof, do not and will not infringe any third party’s intellectual property.

We may not be successful in obtaining or maintaining necessary rights to product components and processes for our manufacturing and development pipeline through acquisitions and in-licenses.

Presently, we have rights to certain intellectual property, under issued patents that we own, including U.S. Patent No. 11,708,423 and EP Patent No. 3,519,441, which relate to CER-1236, as well as additional patents which relate to certain other product candidates. U.S. Patent Application Number 16/646,530 was allowed and later issued on July 25, 2023 as U.S. Patent Number 11,708,423. This patent provides coverage over our CER-1236 product candidate and includes claims directed to a CER comprising, at least in part, a Tim-4 phosphatidylserine binding domain and a TLR signaling domain. Because additional product candidates may require the use of proprietary rights held by third parties, the growth of our business will likely depend in part on our ability to acquire, in-license or use these proprietary rights. In addition, while we have patent rights directed to certain T cell constructs, we may not be able to obtain intellectual property rights to broader T cell or engineered T cell constructs.

Our product candidates may also require specific formulations to work effectively and efficiently and these rights may be held by others. Similarly, efficient production or delivery of our product candidates may also require specific compositions or methods, and the rights to these may be owned by third parties. We may be unable to acquire or in-license any compositions, methods of use, processes or other third-party intellectual property rights from third parties that we identify as necessary or important to our business operations. We may fail to obtain any of these licenses at a reasonable cost or on reasonable terms, if at all, which would harm our business. We may need to cease use of the compositions or methods covered by such third-party intellectual property rights, and may need to seek to develop alternative approaches that do not infringe on such intellectual property rights which may entail additional costs and development delays, even if we were able to develop such alternatives, which may not be feasible. Even if we are able to obtain a license, it may be non-exclusive, thereby giving our competitors access to the same technologies licensed to us. In that event, we may be required to expend significant time and resources to develop or license replacement technology. Moreover, the specific antibodies that will be used with our product candidates may be covered by the intellectual property rights of others.

Additionally, we may collaborate with academic institutions to accelerate our preclinical research or development under written agreements with these institutions. In certain cases, these institutions may provide us with an option to negotiate a license to any of the institution’s rights in technology resulting from the collaboration. Regardless of such option, we may be unable to negotiate a license within the specified timeframe or under terms that are acceptable to us. If we are unable to do so, the institution may offer the intellectual property rights to others, potentially blocking our ability to pursue our program. If we are unable to successfully obtain rights to required third-party intellectual property or to maintain the existing intellectual property rights we have, we may have to abandon development of such program and our business and financial condition could suffer.

The licensing and acquisition of third-party intellectual property rights is a competitive area, and companies which may be more established, or have greater resources than we do, may also be pursuing strategies to license or acquire third-party intellectual property rights that we may consider necessary or attractive in order to commercialize our product candidates. More established companies may have a competitive advantage over us due to their size, cash resources and greater clinical development and commercialization capabilities.

We may be involved in lawsuits to protect or enforce our patents which could be expensive, time-consuming and unsuccessful.

Competitors may infringe our patents. To counter infringement or unauthorized use, we may be required to file infringement claims, which can be expensive and time-consuming. In addition, in a legal proceeding, a court may decide that one or more of our patents is not valid or is unenforceable or may refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover the technology in question. An adverse result in any litigation or defense proceedings could put one or more of our patents at risk of being invalidated, held unenforceable or interpreted narrowly and could put one or more of our pending patent applications at risk of not issuing. Defense of these claims, regardless of their merit, would involve substantial litigation expense and would be a substantial diversion of employee resources from our business. In the event of a successful claim of infringement against us, we may have to pay substantial damages, including treble damages and attorneys’ fees for willful infringement, obtain one or more licenses from third parties, pay royalties or redesign our infringing products, which may be impossible or require substantial time and monetary expenditure.

Interference or derivation proceedings provoked by third parties or brought by the USPTO may be necessary to determine the priority or provenance of inventions with respect to our patents or patent applications or those of our prospective licensors. An unfavorable outcome could result in a loss of our current patent rights and could require us to cease using the related technology or to attempt to license rights to it from the prevailing party. Our business could be harmed if the prevailing party does not offer us a license on commercially reasonable terms. Litigation or interference or derivation proceedings may result in a decision adverse to our interests and, even if we are successful, may result in substantial costs and distract our management and other employees. We may not be able to prevent, alone or with our licensors, misappropriation of our trade secrets or confidential information, particularly in countries where the laws may not protect those rights as fully as in the United States.

Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure during this type of litigation. In addition, there could be public announcements of the results of hearings, motions or other interim proceedings or developments. If securities analysts or investors perceive these results to be negative, it could have a substantial adverse effect on the price of our Common Stock.

Obtaining and maintaining our patent protection depends on compliance with various procedural, document submission, fee payment and other requirements imposed by governmental patent agencies, and our patent protection could be reduced or eliminated for non-compliance with these requirements.