Ablative Radiotherapy to Consolidate Maximal Systemic Response in Metastatic Prostate Cancer (ANCHOR-Prostate) (ANCHORProstate)

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.

Study Overview

Status

Recruiting

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

80

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Quebec
      • Montreal, Quebec, Canada, H2X 0A9

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: SABR consolidation
SBAR to PSMA-PET visible disease at maximal systemic therapy response.
Active Comparator: Control - no SABR consolidation
no SABR, continued systemic therapy per SOC

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
FFS
Time Frame: 1 year
FFS is defined as time from randomization to the first of the following events: PSA progression, radiographic or clinical progression.
1 year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time to progression
Time Frame: 5 years
5 years
HRQoL
Time Frame: 5 years
5 years
Toxicity
Time Frame: 5 years
CTCAEv5, incidence rate
5 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 30, 2022

Primary Completion (Estimated)

July 30, 2025

Study Completion (Estimated)

July 30, 2030

Study Registration Dates

First Submitted

July 4, 2022

First Submitted That Met QC Criteria

July 11, 2022

First Posted (Actual)

July 14, 2022

Study Record Updates

Last Update Posted (Actual)

February 7, 2024

Last Update Submitted That Met QC Criteria

February 5, 2024

Last Verified

February 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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