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Pembrolizumab (MK-3475) Plus Chemotherapy Versus Placebo Plus Chemotherapy in Participants Gastric or Gastroesophageal Junction (GEJ) Adenocarcinoma (MK-3475-859/KEYNOTE-859)-China Extension

Stomach Neoplasms Clinical Trial

Official title:
A Phase 3, Randomized, Double-blind Clinical Study of Pembrolizumab (MK-3475) Plus Chemotherapy Versus Placebo Plus Chemotherapy as First-line Treatment in Participants With HER2 Negative, Previously Untreated, Unresectable or Metastatic Gastric Orgastroesophageal Junction Adenocarcinoma (KEYNOTE-859)

Clinical Trial Summary

The purpose of this study is to evaluate the efficacy of pembrolizumab (MK-3745) in combination with chemotherapy (Cisplatin combined with 5-Fluorouracil [FP regimen] or oxaliplatin combined with capecitabine [CAPOX regimen]) versus placebo in combination with chemotherapy (FP or CAPOX regimens) in the treatment of human epidermal growth factor receptor 2 (HER2) negative advanced gastric or GEJ adenocarcinoma in adult Chinese participants. The primary hypotheses of this study are that pembrolizumab plus chemotherapy is superior to placebo plus chemotherapy in terms of overall survival (OS).

Clinical Trial Description

The China extension study will include participants previously enrolled in China in the global study for MK-3475-859 (NCT03675737) plus those enrolled during the China extension enrollment period. A total of approximately 231 Chinese participants will be enrolled. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04859582
Study type Interventional
Source Merck Sharp & Dohme Corp.
Contact
Status Withdrawn
Phase Phase 3
Start date November 8, 2018
Completion date November 29, 2024
View Details
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