{"nct_id":"NCT04882241","title":"Study of Pembrolizumab (MK-3475) Plus Chemotherapy Versus Placebo Plus Chemotherapy in Participants With Gastric or Gastroesophageal Junction (GEJ) Adenocarcinoma (MK-3475-585/KEYNOTE-585)-China Extension","status":"COMPLETED","status_verified_date":"2025-05","start_date":"2020-07-29","start_date_type":"ACTUAL","primary_completion_date":"2024-02-16","primary_completion_date_type":"ACTUAL","completion_date":"2025-04-23","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["MRK"]}