Overview

A phase IIR cmRCT trial companion to PERa registry, investigating the merit of SABR consolidation in men with metastatic prostate cancer. 80 patients will be randomly selected to be offered experimental SABR based on PSMA-PET detected disease after maximal systemic response. The primary endpoint is the rate of FFS at 1 year. Patients will be stratified according to hormone sensitive vs resistant disease prior to randomisation.

Eligibility

Inclusion Criteria:

3.1.1 Enrolled in PERa (CHUM CER 17.032) and randomly selected for AnChoR-Prostate.

        3.1.2 Diagnosis of metastatic prostate cancer having achieved maximum PSA response to SOC
        systemic therapy defined as two consecutive stable PSA within 6 months of regimen start.
        Stable PSA is defined as non- progressing (<25% rise from nadir, per PCWG3 guidelines).
        3.1.3 ECOG 0-2 3.1.4 PSA > 0.2 ng/mL 3.1.5 1-5 sites of PSMA-PET avid disease amenable to
        SABR.
        Exclusion Criteria:
          -  none