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About
The purpose of this study is to characterize the safety, tolerability, pharmacokinetics, pharmaco-dynamics and preliminary anti-tumor activity of DRP-104 (sirpiglenastat) administered via intravenous infusion or via subcutaneous injection as a single agent and in combination with atezolizumab in patients with advanced solid tumors and to assess preliminary safety and efficacy of which route of administration (intravenous or subcutaneous) will be selected for further development for the one expansion of patients, advanced non-small cell lung cancer (NSCLC) with defined genetic mutations.
Full description
This study will be conducted in 4 Parts:
Part 1: Phase 1 single-agent dose escalation of DRP-104 administered via IV infusion (Cohort 1a) or subQ injection (Cohort 1b and 1c) in patients with advanced solid tumors (excluding primary CNS tumors and HCC):
Part 2, which opens to enrollment once the MTD/MAD/RP2D/RP2R of DRP-104 has been declared from either Part 1-Cohort 1a, 1b, or 1c and/or the RP2R/RP2S has been determined from Part 1 and includes 2 specific cohorts:
Part 3: Phase 1 combination dose escalation of DRP-104 and atezolizumab in patients with advanced solid tumors (excluding primary CNS tumors and HCC) previously treated with an agent targeting checkpoint pathway inhibition (such as anti-PD-1, anti-PD-L1, and/or anti-CTLA-4 antibody), starting one dose level below the MTD/MAD/RP2D (MTD-1) of the recommended phase 2 route and schedule of administration of singleagent DRP-104 and in combination with 1200 mg atezolizumab administered via intravenous infusion on day 1 and repeated every 3 weeks (up to approximately 12 patients); The dose of atezolizumab is fixed. Enrollment for Part 3 will begin once at least 14 patients from either Part 1 or 2 have been treated at this dose, route, and schedule for at least one cycle to ensure safety.
Part 4: Phase 1 combination safety expansion at the MTD/MAD/RP2D, route, and schedule of administration of DRP-104 with atezolizumab in a similar patient population as the dose-escalation (N=14 patients).
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61 participants in 4 patient groups
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Data sourced from clinicaltrials.gov
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