Amgen's master trial for Hard-to-Treat prostate cancer hits early hurdles

NCT ID NCT04631601

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

Summary

This master trial tested several drug combinations, including a new targeted therapy called acapatamab, in 65 men with metastatic castration-resistant prostate cancer (mCRPC). The goal was to check safety and early signs of effectiveness. The study was terminated early, so results are limited, but it may provide clues for future treatments.

What this could mean

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

Active substance

Acapatamab (PSMA-targeted therapy), enzalutamide, abiraterone, and AMG 404 (PD-1 inhibitor)

What this could lead to

If successful, this could point toward new treatment options for advanced prostate cancer that has stopped responding to standard hormone therapy.

What could go wrong

This early-phase trial was terminated, so results are limited. The drugs may cause significant side effects, and it is unclear if they will improve outcomes.

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.

Bites and Stings castration-resistant prostate carcinoma metastatic prostate carcinoma

As listed by the trial registrant

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

Contacts and locations

Locations

  • Akademiska sjukhuset

    Uppsala, 75185, Sweden

  • Clinica Universidad de Navarra

    Pamplona, Navarre, 31008, Spain

  • Karolinska Universitetssjukhuset Solna

    Stockholm, 171 76, Sweden

  • Norton Cancer Institute

    Louisville, Kentucky, 40207, United States

  • Rigshospitalet

    København Ø, 2100, Denmark

  • Royal Marsden Hospital

    Sutton, SM2 5PT, United Kingdom

  • Skanes universitetssjukhus

    Lund, 221 85, Sweden

  • St Vincents Hospital Sydney

    Darlinghurst, New South Wales, 2010, Australia

  • University of Alabama at Birmingham

    Birmingham, Alabama, 35294, United States

  • University of California San Francisco Mission Bay Campus

    San Francisco, California, 94158, United States

  • University of California at Irvine Medical Center

    Orange, California, 92868, United States

  • University of Chicago

    Chicago, Illinois, 60637, United States

  • University of Texas MD Anderson Cancer Center

    Houston, Texas, 77030, United States

  • University of Texas Southwestern Medical Center

    Dallas, Texas, 75390, United States