CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 86 enrolled
Drug / intervention
SBRT + ADTradiation
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03644303
NCT03644303N/ACompleted

TRAP - Targeted Radiotherapy in Androgen-suppressed Prostate Cancer Patients.

Royal Marsden NHS Foundation Trust·interventional·Posted Aug 23, 2018·Updated May 14, 2026

In Brief

A clinical study evaluating SBRT + ADT for Prostate Cancer and 3 related conditions. Completed, enrolled 86 participants across 7 sites.

Detailed Summary

This multi-center, phase II trial will be conducted in men with castration resistant prostate cancer. The aim of the TRAP trial is to test whether a new precise radiotherapy technique called stereotactic body radiotherapy (SBRT) can slow down the growth of metastatic prostate cancer. If SBRT is effective it will represent a new treatment option in these patients, providing more prolonged control without having to resort to chemotherapy and its potentially unpleasant side effects. In this trial, the investigators will identify men who, despite being on next generation androgen deprivation treatment (Abiraterone or Enzalutamide) have developed one or two new sites of worsening (growing) disease but the rest of their cancer is still responding to hormonal therapy. If it is the case that SBRT can successfully treat the cancer which is resistant to current treatment then the investigators hope they will be able to better control the spread of cancer in these patients for longer. The investigators also hope that they will be able to use the tell-tale products (gene markers) that are released into the bloodstream in these patients, or identify characteristics on novel imaging such as magnetic resonance imaging (MRI) to help identify patients in the future who will benefit the most.

Study Details

Timeline

N/ACompletedFinished
20192020202120222023202420252026
First PostedAug 23, 2018
Enrollment StartAug 13, 2018
Primary CompletionMar 31, 2025
TodayJul 2, 2026
Enrollment to primary: 6.6 yearsPosted 7.9 years ago

Interventions

SBRT + ADTradiation

Short course SBRT to 1 or 2 oligo-progressing metastases in addition to continued abiraterone or enzalutamide