Scientists track how prostate cancer drug travels in bones

NCT ID NCT04521361

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study looked at how the drug radium-223 spreads in the bones of men with prostate cancer that has spread to bones. Researchers gave the drug intravenously every 4 weeks for up to 6 doses and used imaging scans to measure its distribution in both tumor and healthy bone. The goal was to learn more about where the drug goes, not to test if it works.

What this could mean

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

Active substance

Radium-223 dichloride (Xofigo)

What this could lead to

If successful, this could help doctors better understand how radium-223 targets bone tumors, potentially improving future treatment plans for prostate cancer that has spread to bones.

What could go wrong

This is a small, early-phase study focused on measuring drug distribution, not on proving effectiveness. Results may not lead to direct treatment changes or benefits for participants.

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 metastatic prostate carcinoma

As listed by the trial registrant

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

Contacts and locations

Locations

  • Azienda USL IRCCS di Reggio Emilia_Arcispedale Santa Maria Nuova - S.C. Oncologia Provinciale

    Reggio Emilia, Emilia-Romagna, 42123, Italy

  • Guy's and St. Thomas' NHS Trust, St. Thomas' Hospital

    London, SE1 7EH, United Kingdom

  • HCL - Centre Hospitalier Lyon Sud

    Pierre-Bénite, 69495, France

  • ICM - Institut du Cancer de Montpellier - Val d'Aurelle

    Montpellier, 34298, France

  • Institut Claudius Regaud - iUCT Oncopole

    Toulouse, 31059, France

  • Institut de Cancerologie Ouest - Saint-Herblain

    Saint-Herblain, 44800, France

  • National Cancer Institute

    Vilnius, LT-08660, Lithuania

  • Rambam Health Corporation

    Haifa, 3109601, Israel

  • Royal Marsden NHS Trust (Surrey)

    Sutton, Surrey, SM2 5PT, United Kingdom

  • Uniklinikum Salzburg - Landeskrankenhaus

    Salzburg, 5020, Austria

  • University College London Hospitals NHS Foundation Trust

    London, NW1 2PG, United Kingdom

  • Vilnius University Hospital Santaros Klinikos

    Vilnius, LT-08661, Lithuania