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Molecular Imaging Informed Radiation Dose Escalation to Sites of Recurrent Disease and De-escalation to Uninvolved Areas in Salvage Radiotherapy for Prostate Cancer

NCT05328505 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 80

Last updated 2026-03-24

No results posted yet for this study

Summary

This is a Phase II prospective single-arm trial that is recruiting 80 participants from patients that have biochemical failure after radical prostatectomy with local or regional recurrence proven by PSMA PET. Participants of this study will receive molecular imaging informed radiation dose escalation to site of recurrent disease and de-escalation to uninvolved areas. Participants will be follow-up as per standard of care up to 5 years post-treatment.

Conditions

Interventions

RADIATION

Image-guided Radiotherapy

de-escalation radiotherapy to elective volumes + simultaneous integrated boost to PSMA avid lesions delivered in 20 fractions +/- ADT (clinical decision). The elective prostate bed and pelvic lymph node regions will receive 45 Gy. The PSMA-avid lymph node(s) will receive an SIB to 55-60 Gy and/or the PSMA-avid lesion in the prostate bed will receive an SIB to 60 Gy. Pelvic nodal treatment and ADT use will be left to the discretion of the treating physician.

Sponsors & Collaborators

  • University Health Network, Toronto

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
MALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-08-23
Primary Completion
2028-08-31
Completion
2030-08-31

Countries

  • Canada

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05328505 on ClinicalTrials.gov