Pembrolizumab (MK-3475) Plus Chemotherapy Versus Placebo Plus Chemotherapy in Participants Gastric or Gastroesophageal Junction (GEJ) Adenocarcinoma (MK-3475-859/KEYNOTE-859)
Conditions
Interventions
- BIOLOGICAL: Pembrolizumab
- DRUG: Cisplatin
- DRUG: 5-fluorouracil
- DRUG: oxaliplatin
- DRUG: capecitabine
- DRUG: Placebo for Pembrolizumab
Sponsor
Merck Sharp & Dohme LLC