Radiation Directed at Prostate Cancer Recurrence After Earlier Radiotherapy
Tests targeted high-dose radiation for prostate cancer that returned after earlier radiotherapy.
Plain-language title generated from the registry record
Registry title: Partial Prostate Salvage High Dose Rate Brachytherapy
Key facts
- Where
- Kelowna, CanadaSee the site
Where in Canada
- BCCA Center for the Southern InteriorKelowna, CanadaTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- British Columbia Cancer Agency
- Trial code
- NCT03246802
- Record updated
- 29 June 2026
- Original description
A dose-response relationship for radiation in the management of prostate cancer is well established. Local recurrence of prostate cancer after external beam radiotherapy occurs in at least 40% of patients treated because of inability to deliver sufficient dose through external beam techniques. These patients respond well to re-irradiation using brachytherapy with about 50% of selected patients remaining free of recurrence 5 years after salvage. Advanced imaging using multiparametric Magnetic Resonance Imaging (mpMRI) allows identification of the site of recurrence, permitting partial prostate salvage brachytherapy. There is extensive literature on Low Dose Rate salvage brachytherapy but less on High Dose Rate.Read full original descriptionShow less
High Dose Rate Partial Prostate Brachytherapy as Salvage Treatment for Local Failures After Previous External Beam Radiotherapy
A dose-response relationship for radiation in the management of prostate cancer is well established. Local recurrence of prostate cancer after external beam radiotherapy occurs in at least 40% of patients treated because of inability to deliver sufficient dose through external beam techniques. These patients respond well to re-irradiation using brachytherapy with about 50% of selected patients remaining free of recurrence 5 years after salvage. Advanced imaging using multiparametric Magnetic Resonance Imaging (mpMRI) allows identification of the site of recurrence, permitting partial prostate salvage brachytherapy. There is extensive literature on Low Dose Rate salvage brachytherapy but less on High Dose Rate.
Inclusion: Age >45 and Life expectancy >10 years; Previous External Beam Radiotherapy (EBRT) or LDR brachytherapy w; > 3 year interval since EBRT or LDR Brachytherapy; No late toxicity from prior EBRT ≥ grade 2; PSA > nadir + 2 ng/ml and < 10 ng/ml; PSA Doubling time > 6 months; Radiographic evidence corresponding with site of recurrence in an under-dosed or untreated site. The recurrence should correspond to the site of original disease or be located in the seminal vesical +/- adjacent prostate as only area of recurrence (i.e. unifocal recurrence); Per Investigator, recurrence is suitable for implant with HDR brachytherapy and patient is suitable for procedure under anesthesia, spinal or general; Negative staging of the abdomen/pelvis and bones; Willing to provide informed consent.
Exclusion: Not compliant with criteria above; Unable to give informed consent.