Immunotherapy cocktail aims to boost immune attack on prostate tumors before surgery

NCT ID NCT03821246

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

Summary

This phase 2 trial is testing whether the immunotherapy drug atezolizumab, alone or combined with etrumadenant or tocilizumab, can boost immune cell activity in prostate tumors before surgical removal. About 68 men with localized prostate cancer will receive treatment before radical prostatectomy. The goal is to see if these combinations increase tumor-fighting T cells, potentially improving outcomes.

What this could mean

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

Active substance

atezolizumab (Tecentriq), tocilizumab (Actemra), etrumadenant (AB928)

What this could lead to

If successful, this could point toward a new way to shrink prostate tumors before surgery, potentially reducing recurrence risk.

What could go wrong

This is an early phase 2 trial with only 68 participants, so results may not apply broadly. The primary endpoint is a biomarker (immune cell increase), not a direct cure or survival benefit.

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.

prostate adenocarcinoma prostate cancer prostate carcinoma

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

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

Locations

  • Alvin J. Siteman Cancer Center at Washington University

    RECRUITING

    St Louis, Missouri, 63110, United States

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

    Contact

  • University of California, San Francisco

    RECRUITING

    San Francisco, California, 94143, United States

    Contact

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