Advanced Solid Tumor Clinical Trial
Official title:
Phase 1/2a Study of the Safety, Pharmacokinetics, Pharmacodynamics and Preliminary Clinical Activity of RP-3500 Alone or in Combination With Talazoparib or Gemcitabine in Advanced Solid Tumors With ATR Inhibitor Sensitizing Mutations (TRESR Study)
The primary purpose of this study is to define the maximum tolerated dose (MTD) and determine a recommended Phase 2 dose (RP2D) and schedule of orally-administered RP-3500 (camonsertib) alone or in combination with talazoparib, a PARP inhibitor, or Gemcitabine in patients with advanced solid tumors with ATR inhibitor-sensitizing mutations. This study will also evaluate the safety and tolerability of RP-3500 (camonsertib) alone or in combination with talazoparib or gemcitabine, examine both the pharmacokinetics (PK)and pharmacodynamics (PD)and investigate its anti-tumor activity in solid tumors.
This is a first-in-human, Phase 1/2a, multi-center, open-label, dose-escalation and expansion study to: - Evaluate the safety profile and MTD of RP-3500 (camonsertib) when administered orally, alone and in combination with talazoparib or gemcitabine, to establish the dose and schedule recommended for the Phase 2 - Characterize the PK profile of RP-3500 (camonsertib) alone or in combination with talazoparib or gemcitabine - Identify anti-tumor activity associated with RP-3500 (camonsertib) given alone or in combination with talazoparib or gemcitabine - Examine biomarker responses and establish a correlation with RP-3500 (camonsertib) exposure and clinical outcomes. The initial cohorts will test RP-3500 (camonsertib) as monotherapy. Additional cohorts will enroll with RP-3500 (camonsertib) in combination with talazoparib or gemcitabine. After the RP2D and schedule is determined, expansion cohort(s) for RP-3500 (camonsertib) will be enrolled to study the anti-tumor effect, and further examine the safety and PK of RP-3500 (camonsertib) at the RP2D ;
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