Can a triple-drug cocktail after short radiation eliminate rectal cancer without surgery?

NCT ID NCT05024097

First seen Jul 29, 2026 · Last updated Jul 30, 2026 · Updated 1 time

Summary

This trial is testing whether adding two immunotherapy drugs—zimberelimab and etrumadenant—to standard chemotherapy and a short course of radiation can completely eliminate rectal cancer. Adults with locally advanced rectal cancer that has not spread will receive the treatment, and those who achieve a complete response may be able to avoid surgery. The main goal is to see how many patients have no cancer left after treatment.

What this could mean

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

Active substance
a combination of two immunotherapy drugs (zimberelimab and etrumadenant) plus chemotherapy (FOLFOX) after short-course radiation
What this could lead to
If successful, this approach could allow some people with rectal cancer to achieve a complete remission without needing surgery.
What could go wrong
This is an early-phase trial with only 43 participants, so results may not apply to everyone. The combination of drugs can cause significant side effects, and not all patients will respond.

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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

  • Brooklyn Methodist Hospital - NewYork Presbyterian

    RECRUITING

    New York, New York, 11215, United States

  • New York Presbyterian Hospital - Queens

    RECRUITING

    New York, New York, 11355, United States

  • Weill Cornell Medical College

    RECRUITING

    New York, New York, 10065, United States

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