This study will have 2 cohorts. In Cohort 1, participants who have not received any previous therapy for their disease will receive Camrelizumab and Apatinib in combination with Oxaliplatin and S-1. In Cohort 2, participants who have received at least one prior therapy for their advanced disease will receive Camrelizumab and Apatinib. A Simon two-stage phase II design was used for the sample size Calculation.
This is a study of Camrelizumab (SHR-1210) and Apatinb for unresectable Recurrent or metastatic alpha-fetoprotein (AFP)-producing gastric cancer or Gastroesophageal Junction Adenocarcinoma. Camrelizumab combined with Apatinib and standard chemotherapy will be given to treatment-naïve participants; Camrelizumab combined with Apatinib will also be evaluated in participants who have had ≥ 1 line of previous treatment. The primary endpoint is the Overall Response Rate (ORR).