First-in-Human Study of Oral Repotrectinib for Advanced Solid Tumors with ALK, ROS1, or NTRK1-3 Gene Rearrangements Phase 1 and 2 Evaluating Safety, Dosage, and Effectiveness

What this Trial Is About

Researchers are studying repotrectinib TPX-0005 in adults and adolescents with advanced solid tumors that have specific gene rearrangements in ALK, ROS1, or NTRK1-3. The trial aims to find the safest and most effective dose in Phase 1, and then evaluate how well the drug works in Phase 2 across different patient groups with these gene changes. This includes patients with tumors that have spread and those with brain involvement, focusing on response rates and survival outcomes. The study involves oral doses of repotrectinib. Phase 1 includes dose escalation to determine dose-limiting toxicities, maximum tolerated dose, and recommended dose for Phase 2. A sub-study also examines drug interactions with midazolam. In Phase 2, participants are assigned to one of six groups based on their tumor type and prior treatments, including different lines of targeted therapy and chemotherapy. Treatments continue according to protocol with regular monitoring. Participants will have measurable tumors confirmed by imaging reviewed centrally. They undergo physical exams, lab tests, and safety assessments throughout the study. Researchers measure response rates, duration of response, progression-free survival, overall survival, and clinical benefit over several years. The study monitors drug levels in blood and evaluates safety closely. Participation may last years with follow-up to assess long-term outcomes and effects on brain metastases.

A Study of Repotrectinib (TPX-0005) in Patients With Advanced Solid Tumors Harboring ALK, ROS1, or NTRK1-3 Rearrangements