Experimental cancer drug KZR-261 tested in early trial

NCT ID NCT05047536

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-phase study tested a new drug called KZR-261 in 61 people with advanced solid tumors that had stopped responding to standard treatments. The main goals were to check safety, find the right dose, and see if the drug could shrink tumors. The trial was terminated, but the data collected helps understand how the drug works in the body.

What this could mean

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

Active substance

KZR-261

What this could lead to

If successful, this could point toward a new treatment option for advanced solid tumors that have not responded to standard therapies.

What could go wrong

This was an early, small Phase 1 trial that was terminated, so results are limited. The drug may not prove effective or safe in larger studies.

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.

castration-resistant prostate carcinoma colorectal cancer colorectal neoplasm melanoma mesothelioma metastatic malignant neoplasm neoplasm Neoplasm Metastasis uveal melanoma

As listed by the trial registrant

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

Contacts and locations

Locations

  • Cedars Sinai Medical Center

    Los Angeles, California, 90048, United States

  • Cleveland Clinic

    Cleveland, Ohio, 44195, United States

  • Fox Chase Cancer Center

    Philadelphia, Pennsylvania, 19111, United States

  • Fred Hutchinson Cancer Center

    Seattle, Washington, 98109, United States

  • Henry Ford Health System

    Detroit, Michigan, 48202, United States

  • Moffitt Cancer Center

    Tampa, Florida, 33612, United States

  • START (South Texas Accelerated Research Therapeutics)

    San Antonio, Texas, 78229, United States

  • Sara Cannon Research Institution (SCRI) - Tennessee Oncology Nashville

    Nashville, Tennessee, 37203, United States

  • University Hospitals - Cleveland Medical Center

    Cleveland, Ohio, 44106, United States

  • University of California Los Angeles

    Los Angeles, California, 90095, United States

  • Virginia Cancer Specialists (VCS)

    Fairfax, Virginia, 22031, United States

  • Winship Cancer Institute of Emory University

    Atlanta, Georgia, 30322, United States