Clinical trial Recruiting at 1 site Phase 2 Interventional Men only

Using targeted radiotherapy to improve outcomes in men with metastatic prostate cancer

Official title: Radiotherapy to Consolidate Systemic Response in Metastatic Prostate Cancer (ANCHOR-Prostate)

Run by Centre hospitalier de l'Université de Montréal (CHUM) · NCT05457699 · Data updated 2026-11-12

This study is testing if a special type of targeted radiotherapy can help men with advanced prostate cancer who have responded well to standard treatments stay healthy longer.

Quick facts

PhasePhase 2
Study typeInterventional
SexMen only
Enrollment80 (estimated)
SponsorCentre hospitalier de l'Université de Montréal (CHUM)
Academic / other
Locations1 site (Montreal, Quebec)
StatusRecruiting
StartedDecember 30, 2022
Main results expectedJuly 30, 2030
Study endsJuly 30, 2030
Registry record updatedSeptember 8, 2026
Trial IDNCT05457699 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are men diagnosed with metastatic prostate cancer who have achieved a stable PSA response to systemic therapy and have PSMA-PET detected disease suitable for SABR.

Probably not a fit

Patients with hormone-resistant metastatic prostate cancer who do not meet the eligibility criteria may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This phase II clinical trial investigates the effectiveness of Stereotactic Ablative Body Radiotherapy (SABR) in men with metastatic prostate cancer who have achieved a maximal systemic response to standard therapy. Eighty participants will be randomly selected to receive SABR based on disease detected by PSMA-PET imaging. The primary goal is to evaluate the rate of freedom from progression (FFP) at one year, with patients categorized by hormone sensitivity prior to randomization. The study aims to provide insights into the potential benefits of consolidative radiotherapy in this patient population.

Why it matters

Potential benefit: If successful, this approach could significantly improve progression-free survival in men with metastatic prostate cancer.

How similar studies have gone: Similar studies using SABR for metastatic prostate cancer have shown promising results, indicating potential for this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Enrolled in PERa (CHUM CER 17.032) and randomly selected for ANCHOR-Prostate.
* Diagnosis of hormone-sensitive metastatic prostate cancer having responded to systemic therapy.
* PSA non-progressing
* ECOG 0-2
* Metastatic disease suitable for MDRT.
* Primary tumor must have received definitive local treatment (surgery or radiotherapy) with no evidence of local recurrence, or be planned for treatment at the time of MDRT.

Exclusion Criteria:

* Planned intermittent systemic therapy.
* Planned radio-ligand therapy.

Where it's running

  • Crchum
    Montreal, Quebec, Canada
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.