Comparing two treatments for relapsing prostate cancer

A Randomized Trial Comparing Conventional "Salvage" Radiotherapy and Individualized 68Ga-PSMA-11 or 18F-PSMA-1007 PET/CT Targeted Treatment in Patients With Biochemical Recurrence After Prostate Cancer Surgery

PHASE3 · Karolinska University Hospital · NCT04794777

This study is testing whether a new imaging-guided treatment or standard salvage radiotherapy works better for men with prostate cancer that has come back after surgery.

Quick facts

PhasePHASE3
Study typeInterventional
Enrollment450 (estimated)
Ages18 Years and up
SexMale
SponsorKarolinska University Hospital (other)
Drugs / interventionsradiation
Locations5 sites (Gothenburg, Göteborg and 4 other locations)
Trial IDNCT04794777 on ClinicalTrials.gov

What this trial studies

This clinical trial compares the effectiveness of salvage radiotherapy (SRT) with individualized PSMA PET/CT targeted treatment for patients experiencing biochemical recurrence of prostate cancer after surgery. The study aims to determine which approach better targets preexisting distant metastases and lymph node metastases, as standard imaging techniques often fail to detect recurrence at low PSA levels. By utilizing PSMA PET/CT, the trial seeks to improve treatment outcomes for patients who have not responded adequately to conventional therapies.

Who should consider this trial

Good fit: Ideal candidates are patients who have undergone radical prostatectomy and are experiencing biochemical recurrence with PSA levels between 0.2 and 2.0 ng/mL.

Not a fit: Patients who have previously received androgen deprivation therapy, pelvic radiotherapy, or have positive lymph nodes at surgery may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to more effective treatment options for patients with relapsing prostate cancer, potentially improving survival rates and quality of life.

How similar studies have performed: While there is limited data on the impact of PSMA PET/CT in this context, other studies have shown promise in using targeted imaging for prostate cancer treatment.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients previously treated for prostate cancer with radical prostatectomy and now having a biochemical recurrence (BCR) defined as: PSA \>0.2 \<2.0 ng/mL, and increasing measured twice.
* Multidisciplinary conference (MDK) decision to offer the patient SRT
* Signed Informed Consent

Exclusion Criteria:

* Patients previously treated for prostate cancer with biochemical recurrence
* Previous treatment with androgen deprivation therapy (ADT) after surgery
* Previous pelvic radiotherapy
* Patients with positive lymph nodes at surgery

Where this trial is running

Gothenburg, Göteborg and 4 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Prostate Cancer, PSMA PET/CT

Last reviewed 2026-05-15 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.