Experimental cancer combo shows promise but trial halted early

NCT ID NCT04972110

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-phase trial tested a new drug, RP-3500 (camonsertib), combined with existing PARP inhibitors (niraparib or olaparib) in 156 adults with advanced solid tumors that have specific genetic markers. The goal was to find safe doses and see if the combination could shrink tumors. However, the study was terminated early, so full results are not available.

What this could mean

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

Active substance

RP-3500 (camonsertib) combined with niraparib or olaparib

What this could lead to

If successful, this combination could offer a new treatment option for people with advanced cancers that have specific genetic changes and have stopped responding to standard therapies.

What could go wrong

The trial was terminated early, so results are limited. The combination may cause significant side effects, and it is unclear if it will work better than existing treatments.

Disclaimer Read more

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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Conditions

The condition(s) this trial relates to.

neoplasm

As listed by the trial registrant

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

Contacts and locations

Locations

  • Participating Site # 1001

    Houston, Texas, 77030, United States

  • Participating Site # 1008

    New York, New York, 10032, United States

  • Participating Site # 1013

    Salt Lake City, Utah, 84112, United States

  • Participating Site # 1016

    Rochester, Minnesota, 55905, United States

  • Participating Site #1009

    Baltimore, Maryland, 21205, United States

  • Participating Site #1012

    New Haven, Connecticut, 06511, United States

  • Participating Site #1015

    Ann Arbor, Michigan, 48109, United States

  • Participating Site #1017

    Jacksonville, Florida, 32224, United States

  • Participating Site #1018

    Phoenix, Arizona, 97401, United States

  • Participating Site #1025

    San Francisco, California, 94158, United States

  • Participating Site #1026

    New York, New York, 10029, United States

  • Participating Site #1028

    Aurora, Colorado, 80012, United States

  • Participating Site #1029

    Eugene, Oregon, 97401, United States