This is a multicenter, open-label, dose-escalated phase Ib study aimed to evaluate the safety, tolerability, and efficacy of JMT101 combined with afatinib in patients with advanced esophageal squamous cell carcinoma who have failed standard treatment. This study consists of two stages: dose-escalation stage and dose expansion stage. The dose-escalation stage will be conducted to determine the maximum tolerated dose (MTD) of JMT101 combined with afatinib in patients with advanced esophageal squamous cell carcinoma based on a 3+3 design. JMT101 will be given by intravenous infusion at 6 mg/kg (q2w) of each 28-week cycle. Afatinib will be sequentially administered at 30 mg and 40 mg (qd) of each 28-week cycle. One dose cohort which is verified to be well-tolerated and safe in dose-escalation stage will be selected for dose-expansion to further explore the safety, pharmacokinetic and efficacy of the study drug.
This study is a multi-center, open-label, phase Ib study to evaluate the safety, tolerability and efficacy of JMT101 combined with afatinib in patients with advanced esophageal squamous cell carcinoma who have failed standard treatment.