Could a gut bacteria boost cancer immunotherapy? new trial launches

NCT ID NCT07128680

First seen Jan 31, 2026 · Last updated Jun 22, 2026 · Updated 16 times

Summary

This early-phase trial tests whether adding a live bacteria supplement (EXL01) to standard immunotherapy (nivolumab and ipilimumab) is safe and more effective for people with metastatic kidney cancer. About 33 participants will receive either the immunotherapy alone or with the supplement. The goal is to see if the bacteria can improve the immune response against the tumor.

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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

  • City of Hope Medical Center

    RECRUITING

    Duarte, California, 91010, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • City of Hope Medical Center

    NOT_YET_RECRUITING

    Irvine, California, 92618, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

What this could mean

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

Active substance

nivolumab, ipilimumab, and EXL01 (a live bacterial supplement)

What this could lead to

If it works, this could point toward a way to boost the immune system's attack on kidney cancer by adding a gut bacteria supplement to standard immunotherapy.

What could go wrong

This is a very early (Phase 1) and small (33 people) trial, so it is mainly checking safety. The bacteria supplement may not help, and side effects from the immunotherapy can be serious.

Conditions

The condition(s) this trial relates to.

clear cell renal carcinoma Clear-cell metastatic renal cell carcinoma renal cell carcinoma

As listed by the trial registrant

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