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Marker Therapeutics(MRKR) - 2024 Q4 - Annual Report

Product Development - The company is advancing two product candidates for three clinical indications as part of its MAR-T cell program, including MT-601 for lymphoma and pancreatic cancer, and MT-401-OTS for various indications[20]. - The ongoing Phase 1/2 TACTOPS trial for MT-601 in pancreatic cancer showed a clinical benefit with 31% of patients (4 out of 13) demonstrating objective responses[29]. - The MT-401-OTS program aims to provide treatment to patients in as little as 72 hours, with the first patient expected to be dosed in the second half of 2025[35]. - The company aims to lead in the development and commercialization of transformative immunotherapies for hematological malignancies and solid tumors, significantly improving patient survival and quality of life[40]. - The company plans to prioritize the advancement of MT-601 in patients with lymphoma and advance the MT-401-OTS program in patients with AML and MDS based on positive Phase 1 clinical trial results[41]. - The company intends to initiate additional clinical trials in other tumor types based on emerging data from ongoing studies[42]. - The company has observed no dose-limiting toxicities, cytokine release syndrome, or neurotoxicity in its trials to date, indicating a favorable safety profile for its therapies[36]. - The company has experienced setbacks in clinical trials due to safety and efficacy concerns, which could lead to increased costs or abandonment of product candidates[210]. Clinical Trial Results - In the Phase 1 APOLLO study for MT-601, 78% of patients (7 out of 9) achieved objective responses at the first assessment, with a complete response rate of 44.4%[25]. - In a Phase 1 clinical trial for lymphoma, complete responses were observed in 6 out of 15 evaluable patients, with no relapses reported among those who achieved complete responses[60]. - The company reported an estimated two-year overall survival rate of 77% for patients treated with MAR-T cell therapy in a Phase 1 AML/MDS trial, compared to a two-year survival probability of 42% for risk-matched patients post-HSCT[67]. - In a Phase 1 clinical trial for lymphoma, 32 patients received MAR-T cell therapy, with 4 achieving objective responses and 1 achieving a complete response at month nine[74]. - Among 13 evaluable patients in the active lymphoma group, 6 experienced stable disease, and 9 exceeded historical overall survival rates[76]. - In the adjuvant lymphoma group, all 17 patients entered complete remission, with 14 maintaining remission without relapse, and response duration ranged from approximately 9 months to over 5 years[78]. Manufacturing and Production - The new T cell manufacturing process for MT-401 reduces production time to 9 days, allowing a 90% decrease in the number of interventions during production[36]. - The manufacturing process for MAR-T cell therapies has been optimized, reducing total manufacturing time from 36 days to 9 days, resulting in a four-fold increase in potency in vitro[43]. - The manufacturing process for MAR-T cell therapies involves isolating PBMCs and expanding T cells, resulting in an average of approximately 4,000 different T cell clonotypes per patient product[85]. - The standard dose for lymphoma patients ranges from 100 to 400 million cells per adult patient[86]. - The company has opened an in-house cGMP manufacturing facility in Houston, Texas, but has since sold its manufacturing assets to Cell Ready, LLC, and now relies on third-party vendors for clinical and commercial manufacturing[219]. - The company plans to evaluate and qualify additional third-party manufacturing partners in anticipation of a larger pivotal trial for lymphoma in 2026[90]. - The company has entered into a Master Services Agreement with Cell Ready for product supply, but this agreement was mutually terminated in March 2025[221]. - The manufacturing process is dependent on specialized equipment and materials, which may not be available on acceptable terms, impacting production capabilities[226]. Financials and Funding - The company incurred 5.8millionand5.8 million and 1.3 million in expenses related to services and manufacturing costs for the years ended December 31, 2024 and 2023, respectively[92]. - The company has a history of operating losses and expects these losses to continue indefinitely, raising substantial doubt about its ability to continue as a going concern[181]. - The company anticipates that its operational costs will increase significantly, leading to a growing deficit as it continues its clinical development program[181]. - The company plans to raise additional capital through the issuance of common shares and grant funds to fund operations beyond the first quarter of 2026[184]. - The company has sustained losses from operations in each fiscal year since inception, with expectations of continued losses due to substantial investments in research and development[183]. - The company currently carries product and clinical trial liability insurance, but there is no assurance that claims will not exceed coverage limits[171]. Regulatory and Compliance - The FDA granted orphan drug designation to MT-601 for pancreatic cancer treatment in January 2022, and the company received a 9.5milliongrantfromCPRITanda9.5 million grant from CPRIT and a 2 million grant from NIH to support clinical investigations[30]. - The FDA's review process for biologic product candidates typically involves a ten-month review for standard applications and six months for priority reviews after submission of a Biologics License Application (BLA)[139]. - The company must complete preclinical and clinical trials, including three phases of human clinical trials, before submitting a BLA for FDA approval[135]. - The FDA may require additional Phase 4 studies after product approval to monitor safety and efficacy, which could limit further marketing based on study results[141]. - The FDA offers expedited development programs, such as fast-track and breakthrough therapy designations, to facilitate the review process for products addressing serious conditions[142][143]. - The company must navigate various regulatory requirements for research, development, and marketing of its product candidates in multiple jurisdictions[132]. - The FDA closely regulates marketing and promotion of biologics, limiting claims to those approved in the product's labeling[154]. - Compliance with FDA regulations is mandatory post-approval, including record-keeping and reporting of adverse experiences[152]. Intellectual Property - The company’s intellectual property strategy focuses on obtaining and maintaining patent protection for its technologies, which is vital for its commercial success[120]. - The company’s patent portfolio includes claims directed to methods of generating multi-antigen specific T cell products and their therapeutic uses[117]. - The company is responsible for reimbursing BCM for patent-related expenses and maintaining all patent applications included in the licensed rights[102]. - The company has pending patent applications covering various medical technologies, but the outcome of these applications is uncertain, and they may face significant costs in opposition proceedings[126]. - The company relies on trade secrets and regulatory protections, such as orphan drug designations and data exclusivity, to maintain its proprietary position in immuno-oncology[128]. - The company retains ownership over any intellectual property developed under the CPRIT grant agreements, with a nonexclusive license granted to CPRIT for non-commercial use[112]. Market Competition - The company faces competition from multiple pharmaceutical and biotechnology companies, with a significant unmet medical need for effective treatments for relapsed lymphoma patients[95]. - The company’s MAR-T cell drug candidates may compete with various immunotherapies, including non-CD19 targeting CAR-T cells and bispecific antibodies[96]. - The company may face difficulties in patient enrollment for future clinical trials due to competition with other trials in the same therapeutic areas, which could delay trial completion and commercialization[209]. Operational Risks - The company is dependent on third-party vendors for manufacturing and cell processing, and disruptions could adversely affect operations[180]. - The reliance on third-party manufacturers poses risks, including potential delays in clinical trials and regulatory submissions if agreements are breached or terminated[224]. - The company may need to conduct additional studies if adverse side effects are identified during clinical trials, which could further delay regulatory approval[213]. - The company may not achieve projected development goals, potentially delaying product commercialization[208]. - Regulatory inspections may lead to temporary or permanent discontinuation of clinical trials if compliance issues are identified[204]. - Previous clinical trial results may not predict future outcomes, with potential setbacks occurring at any stage of the clinical trial process[205]. - The company may face challenges in recruiting suitable patients for clinical trials, which could delay the overall development timeline[202].