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Study identifier: NCT04794777 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Comparing "Salvage" Radiotherapy and Individualized PSMA PET/CT Targeted Treatment in With Relapsing Prostate Cancer

Condition: Prostate Cancer  ·  Sponsor: Stefan Carlsson

PhasePhase 3
Planned participants450
Who can joinMale, 18 Years to no upper limit
Healthy volunteersNo

About this study

Less than 50% of patients receiving salvage radiation therapy (SRT) to the pelvis as treatment for prostate cancer relapsing after surgery will achieve undetectable Prostate Specific Antigen (PSA) levels. Despite SRT, two-thirds of patients will again develop elevated PSA, 20% will have distant metastases, and 10% will die from prostate cancer within 10 years. The reason for this is probably preexisting distant metastasis and lymph node metastasises which need to better targeted directly. Additionally , there are well known permanent side effects to SRT. Standard imaging techniques have poor sensitivity detecting recurrence when PSA is below 1.0 ng/ml. The surface protein Prostate-specific membrane antigen (PSMA) is overexpressed on prostate cancer cells and 68Gallium (68Ga)- and 18Fluorine (18F)-targeted radioligands have been developed. PSMA PET/CT is used increasingly but there is limited data of its impact. In this study patients with biochemical relapse of prostate cancer after surgery are randomised to the control or experimental group (1:2) and undergo a PSMA PET/CT scan. The experimental group receives individualised therapy based on the result of the PET/CT. The control group receives standard salvage therapy and the result of the PET/CT is blinded. The patients are followed-up with PSA test and quality of life questionnaires.

This description comes directly from the study's public registry record.

Talk to the study team

Stefan Carlsson  ·  0704871106  ·  stefan.carlsson@ki.se

Yvonne Larsen  ·  yvonne.larsen@regionstockholm.se

Always discuss trial participation with your own doctor first.

Locations (5)

Sahlgrenska University HospitalGothenburg, Göteborg, SwedenRecruiting
SödersjukhusetStockholm, Stockholm County, SwedenNot Yet Recruiting
Karolinska University HospitalStockholm, Stockholm County, SwedenRecruiting
Norrland's University HospitalUmeå, SwedenNot Yet Recruiting
Örebro University HospitalÖrebro, Örebro County, SwedenNot Yet Recruiting

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Source record: clinicaltrials.gov/study/NCT04794777