Patients with histologically proven squamous cell carcinoma of esophagus and had progression from first-line platinum-based chemotherapy for recurrent or metastatic ESCC, or progression within 6 months after neoadjuvant, definitive, or adjuvant chemo(radio) -therapy for loco-regional ESCC would be eligible for this trial. Eligible patients will receive daily 40mg cabozantinib plus i.v. atezolizumab 1200mg Q3W for treatment response evaluation. Primary endpoint is the objective response rate, and secondary endpoints include progression-free survival, overall survival, and safety profiles.
To demonstrate that combination of cabozantinib and atezolizumab is safe and efficacious in patients with recurrent/metastatic esophageal squamous cell carcinoma.