This Phase 1, open-label, non-randomized study will enroll adult subjects with relapsed or refractory non-central nervous system (CNS) malignant solid tumors expressing glypican-3 (GPC3) to examine the safety, feasibility, and efficacy of administering T cell products derived from peripheral blood mononuclear cells (PBMC) that have been genetically modified to co-express a GPC3-specific chimeric antigen receptor (CAR), interleukin (IL)-15 and IL-21 as well as the inducible caspase 9 (iC9) suicide gene (SC-CAR.GPC3xIL15.21 T cells). An adult participant meeting all eligibility criteria and meeting none of the exclusion criteria will have a blood sample collected, which will be used to bioengineer the CAR T cells targeting their tumor.
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The number of successfully manufactured SC-CAR.GPC3xIL15.21 T cell products will be assessed
Timeframe: 28 days
To determine the safety of escalating doses of an intravenous injection of SC-CAR.GPC3xIL15.21 T cells in adults with relapsed or refractory GPC3-positive solid tumors after lymphodepleting chemotherapy based on frequency of adverse events based on CTCAE
Timeframe: 42 days