New hope for rare cancer: immunotherapy shows promise in unknown primary tumors

NCT ID NCT05024968

First seen Feb 26, 2026 · Last updated Jun 02, 2026 · Updated 13 times

Summary

This study tested a drug called sintilimab in people with a rare cancer where doctors cannot find where the cancer started (cancer of unknown primary). The goal was to see if the drug could shrink tumors or stop them from growing. Ten patients who had already tried other treatments took part, receiving sintilimab every three weeks for up to two years.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Locations

  • M D Anderson Cancer Center

    Houston, Texas, 77030, United States

Conditions

Explore the condition pages connected to this study.