Immune checkpoint inhibitors plus chemotherapy versus chemotherapy or immune checkpoint inhibitors for first‐ or second‐line treatment of advanced gastric and gastro‐esophageal junction cancer

This is a protocol for a Cochrane Review (Intervention). The objectives are as follows: To evaluate the efficacy and safety of immune checkpoint inhibitors, alone or in combination with chemotherapy, in people with advanced gastric and gastroesophageal junction adenocarcinoma in first and subsequent treatment lines.