Can immunotherapy outperform chemo after stomach cancer surgery?

NCT ID NCT05468138

First seen Aug 11, 2026 · Last updated Aug 12, 2026 · Updated 1 time

Summary

This trial is testing whether giving a PD-1 immunotherapy drug after surgery can help people with a specific type of stomach cancer (MSI-H) live longer without the cancer coming back. Participants who had surgery to remove their stomach cancer will be randomly assigned to receive either standard chemotherapy, the immunotherapy drug, or just follow-up observation. The goal is to see if immunotherapy offers a better chance of staying cancer-free for three years compared to the other options.

What this could mean

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

Active substance
PD-1 monoclonal antibody immunotherapy (compared to standard chemotherapy or observation)
What this could lead to
If successful, this could establish immunotherapy as a better post-surgery option for MSI-H gastric cancer patients, potentially improving survival and reducing recurrence.
What could go wrong
This is a small phase II trial, so results may not be conclusive. Immunotherapy can cause immune-related side effects, and it's unclear if it will outperform standard chemo or observation in this setting.

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

  • Dazhi Xu

    Shanghai, China

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