Immunotherapy combo shows promise for Hard-to-Treat stomach cancers

NCT ID NCT03257163

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This phase II trial is testing whether giving the immunotherapy drug pembrolizumab before standard chemotherapy and radiation can help prevent stomach cancer from coming back. It includes 40 people with operable stomach cancer that has either a specific DNA repair problem (mismatch repair deficiency) or is linked to the Epstein-Barr virus. The study compares the three-year cancer-free survival rate to a historical benchmark of 45%.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
Pembrolizumab (a drug that helps the immune system fight cancer), capecitabine (chemotherapy), and radiation therapy
What this could lead to
If successful, this combination could improve the chance of staying cancer-free after treatment for people with certain types of gastric cancer.
What could go wrong
This is a small, early-phase trial with only 40 participants, so results may not apply to everyone. The treatment involves strong drugs and radiation, which can cause serious side effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Emory University

    Atlanta, Georgia, 30308, United States

  • Montefiore Medical Center

    The Bronx, New York, 10467, United States

  • RWJBarnabas Health - Robert Wood Johnson University Hospital, Hamilton

    Hamilton, New Jersey, 08690, United States

  • Rutgers Cancer Institute of New Jersey

    New Brunswick, New Jersey, 08903, United States

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