Keynote Trials for Gastric Cancer

As the sponsor of the Keynote Oncology Clinical Trials, Merck is passionate about improving health. We are committed to accelerating every step in the journey in our quest to bring treatment options to people with cancer.

Below are trials currently being conducted in gastric cancer, evaluating the investigational study drug, pembrolizumab (MK-3475).

Active Clinical Trials

The cancer types listed below currently have active trial listings on clinicaltrials.gov. Click on a study name to be directed to that trial's information, or call 1-888-577-8839 to find a study site near you for the trial you are interested in.

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A Study of Pembrolizumab in Participants With Recurrent or Metastatic Gastric or Gastroesophageal Junction Adenocarcinoma

This is a study of pembrolizumab for advanced gastric or gastroesophageal junction adenocarcinoma; pembrolizumab will be given as monotherapy to participants who have had previous treatment or who are treatment-naïve; pembrolizumab will also be evaluated as combination therapy with cisplatin and 5-Fluorouracil (5-FU) in treatment-naïve participants. The primary study hypothesis is that pembrolizumab will provide a clinically meaningful overall response rate.

more about the study
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A Study of Pembrolizumab Versus Paclitaxel for Participants With Advanced Gastric/Gastroesophageal Junction Adenocarcinoma That Progressed After Therapy With Platinum and Fluoropyrimidine

This is a study for participants with advanced gastric or gastroesophageal junction adenocarcinoma who have had tumor progression after first-line treatment with platinum and fluoropyrimidine doublet therapy. The primary study hypotheses are that pembrolizumab prolongs progression free survival (PFS) and overall survival (OS) for participants with tumors that show positive programmed cell death ligand 1 (PD-L1) expression.

more about the study
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Study of Pembrolizumab as First-Line Monotherapy and Combination Therapy for Treatment of Advanced Gastric or Gastroesophageal Junction Adenocarcinoma

This is a study of pembrolizumab (MK-3475) as first-line treatment for participants with advanced gastric or gastroesophageal junction (GEJ) adenocarcinoma. Participants will be randomly assigned to one of the 3 treatment arms of the study: pembrolizumab as monotherapy, or pembrolizumab + cisplatin + 5-fluorouracil (5-FU) or capecitabine, or placebo + cisplatin + 5-FU or capecitabine. The primary hypothesis is that pembrolizumab provides a clinically meaningful progression free and/or overall survival.

more about the study

Clinical Trials: Important Information to Consider

There is a lot to consider when deciding whether to participate in a clinical study. Any clinical study includes risks, which the study doctor will review with you. Make sure you understand the risks before participating.