New hope for prostate cancer recurrence: precise radiation without major surgery
NCT ID NCT06508567
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a precise radiation treatment (MR-guided high-dose-rate brachytherapy) for men whose prostate cancer has returned in the prostate bed after previous radiotherapy. About 20 participants will receive this targeted therapy to see if it can control the cancer with acceptable side effects. The goal is to manage the disease rather than cure it, as ongoing monitoring is needed.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 20 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2024
- Expected to finish
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Mar 2031
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Male participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Patients who received previous RT to the prostate bed +/- pelvic nodal regions 2. Prostate-bed recurrence identified by biopsy and/or MRI and/or PSMA-PET scan 3. At least two continuous PSA elevations post RT and PSA above 0.2 ng/dl 4. With or without ADT PSA doubling time from nadir greater than 6 months 5. ECOG 0-2 6. Age greater than 18 years Exclusion Criteria: 1. Radiological (e.g. PSMA PET, CT, MRI or bone scan) evidence of or distant metastases 2. History of ≥G3 gastrointestinal (GI) and genitourinary (GU) toxicities following RT 3. Any contraindications to MR and/or brachytherapy
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Princess Margaret Cancer Centre
RECRUITINGToronto, Ontario, M5G1Z5, Canada
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Radioactive missile aims at prostate cancer that spread
- New PET tracer targets ACP3 to spot prostate cancer
- Can a One-Week radiation course match four weeks for prostate cancer?
- Can a new PET tracer spot hidden prostate cancer spread?
- Can a gel cushion shield the rectum during prostate radiation?
- A scanner in the operating room could show surgeons exactly where prostate cancer remains