PHASE 1/2 STUDY OF TAS-120 IN PATIENTS WITH ADVANCED SOLID TUMORS HARBORING FGF/FGFR ABERRATIONS
This is an open-label, nonrandomized, Phase 1 dose-escalation, dose-expansion, and Phase 2 study targeting tumors with FGF/FGFR aberrations. The purpose of the study is to evaluate the safety, tolerability, PK, pharmacodynamic, and anti-tumor activity of TAS-120 in patients with advanced solid tumors with and without FGF/FGFR-related abnormalities. The study will be conducted in 3 parts, (1) Dose escalation to determine the MTD and/ or RP2D of TAS-120 in which this part of the study has been completed; (2) Phase 1 expansion to further evaluate the safety and efficacy of RP2D of TAS-120 in patients with tumors harboring specific FGFR aberrations, specifically in patients with cholangiocarcinoma, gliomas , urothelial carcinomas and any other tumors with FGFR fusion or activating mutation or amplification. Up to approximately 185 patients will be enrolled in the phase 1 expansion; and (3) Phase 2 study to confirm ORR of TAS-120 in intra-hepatic CCA patients with tumors harboring FGFR2 gene fusions. Approx. 100 patients will be enrolled in phase 2.