Study design
WEST
This was a single‐center, prospective, single‐arm phase II study of intravenous oxaliplatin with oral S‐1 plus intraperitoneal paclitaxel in patients with synchronous peritoneal metastatic GC. The protocol was approved by the Ethics Committee of West China Hospital, Sichuan University, and informed consent was obtained from all patients, and the study was carried out in accordance with the Helsinki declaration and its later amendments. This trial was registered with the Chinese Clinical Trial Registry (ChiCTR1900025984).