Phase 1ab Study of BG-C137 Antibody-Drug Conjugate with or without Other Cancer Drugs in Adults With Advanced Solid Tumors

What this Trial Is About

Researchers are evaluating BG-C137, an antibody-drug conjugate targeting FGFR2b, in people with advanced solid tumors. This study aims to assess the safety, tolerability, how the drug moves and acts in the body, and early antitumor effects. It is a phase 1ab trial involving participants with tumors expressing FGFR2b or FGFR2 gene amplification who have received prior cancer treatments. The study is sponsored by BeOne Medicines and includes two main phases dose escalation and dose expansion. The trial has three parts Phase 1a evaluates increasing doses of BG-C137 alone and then in combination with other anticancer agents to establish safe dose levels. Phase 1b further explores the recommended dose in selected patient groups. BG-C137 and anticancer agents are given intravenously or orally depending on the treatment. Participants undergo dose escalation, safety expansions, and dose confirmations to determine the best dosing for further study. Participants will be monitored regularly for side effects and response to treatment for up to about two years. Assessments include measuring adverse events, drug levels in the blood, tumor response, and immune reactions to the drug. Safety follow-up visits occur after treatment ends. Researchers will measure outcomes such as maximum tolerated dose, overall response rate, disease control, and progression-free survival. The trial involves frequent visits for treatment and assessments throughout the study period.

A First-in-Human (FIH) Study of BG-C137, an Anti-Fibroblast Growth Factor Receptor 2b (FGFR2b) Antibody Drug Conjugate, in Participants With Advanced Solid Tumors