On April 27, 2021 Fate Therapeutics, Inc. (NASDAQ: FATE), a clinical-stage biopharmaceutical company dedicated to the development of programmed cellular immunotherapies for patients with cancer, reported that two oral and two digital presentations of the Company’s induced pluripotent stem cell (iPSC) product platform were accepted for presentation at the 24th American Society of Gene & Cell Therapy Annual Meeting (ASGCT) (Free ASGCT Whitepaper) being held virtually from May 11-14, 2021 (Press release, Fate Therapeutics, APR 27, 2021, View Source [SID1234578561]).
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In addition to the Company’s presentations at ASGCT (Free ASGCT Whitepaper), its iPSC-derived natural killer (NK) cell product pipeline is expected to be featured in a meeting symposium on May 11 by Jeffrey S. Miller, M.D., Professor of Medicine, University of Minnesota and Deputy Director of the Masonic Cancer Center and scientific advisor and collaborator of the Company, and its iPSC-derived CAR T-cell product platform is expected to be highlighted during the meeting’s plenary session on May 12 by Michel Sadelain, M.D., Ph.D., Stephen and Barbara Friedman Chair and Director, Center for Cell Engineering, Memorial Sloan Kettering Cancer Center and collaborator of the Company.
The Company also plans to host a virtual investor event on May 13 to highlight interim Phase 1 clinical data from its FT516 and FT538 programs for the treatment of relapsed / refractory acute myeloid leukemia (AML). The Phase 1 clinical trial of FT516 has enrolled the first and second dose cohorts (90 million and 300 million cells per dose, respectively), and dose escalation is ongoing in the third dose cohort (900 million cells per dose). The Phase 1 clinical trial of FT538 is ongoing in the first dose cohort (100 million cells per dose).
ASGCT Oral Presentations
Sequential CRISPR-mediated Engineering and Clonal Banking for the Generation of Multiplexed Engineered Master Pluripotent Cell Lines for the Mass Manufacture of Off-the-Shelf Immune Cells Targeting Solid Cancers
Room 9 – Advances in Ex Vivo Modified Cell Therapies; Abstract 5; May 11, 2021; 6:30pm – 6:45pm EDT
Enhanced Generation of T-cell Derived Naïve Pluripotent Cells as a Renewable Cell Source for the Mass Manufacture of Off-the-shelf CAR T-cell Therapies
Room 5 – CAR Modified Cellular Therapies; Abstract 76; May 12, 2021; 6:45pm – 7:00pm EDT
ASGCT Digital Presentations
Development and Application of a Pluripotent Stem Cell Platform to Generate Precision-Engineered Single Cell-derived Renewable Clonal Master Cell Lines for Therapeutic Use
Abstract # 793
Temporal Gene Regulation of T-cell Enhancers by Locus Targeted Engineering Enables Cytokine Autonomy and Augments Anti-tumor Efficacy of iPSC-derived Off-the-shelf CAR-T Therapy
Abstract #784
About Fate Therapeutics’ iPSC Product Platform
The Company’s proprietary induced pluripotent stem cell (iPSC) product platform enables mass production of off-the-shelf, engineered, homogeneous cell products that can be administered with multiple doses to deliver more effective pharmacologic activity, including in combination with other cancer treatments. Human iPSCs possess the unique dual properties of unlimited self-renewal and differentiation potential into all cell types of the body. The Company’s first-of-kind approach involves engineering human iPSCs in a one-time genetic modification event and selecting a single engineered iPSC for maintenance as a clonal master iPSC line. Analogous to master cell lines used to manufacture biopharmaceutical drug products such as monoclonal antibodies, clonal master iPSC lines are a renewable source for manufacturing cell therapy products which are well-defined and uniform in composition, can be mass produced at significant scale in a cost-effective manner, and can be delivered off-the-shelf for patient treatment. As a result, the Company’s platform is uniquely capable of overcoming numerous limitations associated with the production of cell therapies using patient- or donor-sourced cells, which is logistically complex and expensive and is subject to batch-to-batch and cell-to-cell variability that can affect clinical safety and efficacy. Fate Therapeutics’ iPSC product platform is supported by an intellectual property portfolio of over 350 issued patents and 150 pending patent applications.
About FT516
FT516 is an investigational, universal, off-the-shelf natural killer (NK) cell cancer immunotherapy derived from a clonal master induced pluripotent stem cell (iPSC) line engineered to express a novel high-affinity 158V, non-cleavable CD16 (hnCD16) Fc receptor, which has been modified to prevent its down-regulation and to enhance its binding to tumor-targeting antibodies. CD16 mediates antibody-dependent cellular cytotoxicity (ADCC), a potent anti-tumor mechanism by which NK cells recognize, bind and kill antibody-coated cancer cells. ADCC is dependent on NK cells maintaining stable and effective expression of CD16, which has been shown to undergo considerable down-regulation in cancer patients. In addition, CD16 occurs in two variants, 158V or 158F, that elicit high or low binding affinity, respectively, to the Fc domain of IgG1 antibodies. Numerous clinical studies with FDA-approved tumor-targeting antibodies, including rituximab, trastuzumab and cetuximab, have demonstrated that patients homozygous for the 158V variant, which is present in only about 15% of patients, have improved clinical outcomes. FT516 is being investigated in a multi-dose Phase 1 clinical trial as a monotherapy for the treatment of acute myeloid leukemia and in combination with CD20-targeted monoclonal antibodies for the treatment of advanced B-cell lymphoma (NCT04023071). Additionally, FT516 is being investigated in a multi-dose Phase 1 clinical trial in combination with avelumab for the treatment of advanced solid tumor resistant to anti-PDL1 checkpoint inhibitor therapy (NCT04551885).
About FT538
FT538 is an investigational, universal, off-the-shelf natural killer (NK) cell cancer immunotherapy derived from a clonal master induced pluripotent stem cell (iPSC) line engineered with three functional components: a novel high-affinity 158V, non-cleavable CD16 (hnCD16) Fc receptor, which has been modified to prevent its down-regulation and to enhance its binding to tumor-targeting antibodies; an IL-15 receptor fusion (IL-15RF) that augments NK cell activity; and the deletion of the CD38 gene (CD38KO), which promotes persistence and function in high oxidative stress environments. FT538 is designed to enhance innate immunity in cancer patients, where endogenous NK cells are typically diminished in both number and function due to prior treatment regimens and tumor suppressive mechanisms. In preclinical studies, FT538 has shown superior NK cell effector function, as compared to peripheral blood NK cells, with the potential to confer significant anti-tumor activity to patients through multiple mechanisms of action. FT538 is being investigated in a multi-dose Phase 1 clinical trial for the treatment of acute myeloid leukemia (AML) and in combination with daratumumab, a CD38-targeted monoclonal antibody therapy, for the treatment of multiple myeloma (NCT04614636).