Genfit S.A.Positive Phase 1b data for GNS561 combination therapy shows favorable safety and efficacy, supporting advancement to Phase 2.

GENFIT announced positive Phase 1b results for its investigational drug GNS561 in combination with a MEK inhibitor in heavily pretreated cholangiocarcinoma patients. The study enrolled 19 patients with advanced KRAS-mutated cholangiocarcinoma who had failed one or two prior lines of standard-of-care therapy, and observed a favorable safety and tolerability profile with no dose-limiting toxicities. Approximately half of patients achieved stable disease at Week 6, including one patient maintaining this status up to Week 30. Based on these findings, GENFIT will expand the Phase 1b study with additional higher-dose cohorts while keeping the Phase 2 initiation on track for the second half of 2026.
Genfit S.A.Positive Phase 1b data for GNS561 combination therapy shows favorable safety and efficacy, supporting advancement to Phase 2.