Precision radiotherapy may buy time for men with spreading prostate cancer
NCT ID NCT07691697
First seen Jul 09, 2026 · Last updated Jul 10, 2026 · Updated 1 time
Summary
This study investigates whether precisely targeted radiotherapy can delay the need for stronger drugs in men with prostate cancer that has started to grow in a few new spots while on systemic therapy. Participants have metastatic hormone-sensitive or castration-resistant prostate cancer and develop up to five new or growing lesions detected by PSMA PET imaging. The treatment, called progression-directed radiotherapy, uses techniques like stereotactic body radiotherapy or brachytherapy to target only those active lesions. The goal is to see if this approach can postpone switching to a new line of systemic therapy and maintain control of the disease.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Progression-directed radiotherapy (stereotactic body radiotherapy, brachytherapy, or external beam radiotherapy)
- What this could lead to
- If successful, this approach could help men with prostate cancer delay switching to more aggressive systemic treatments, preserving quality of life.
- What could go wrong
- This is an observational registry, not a controlled trial, so results may be influenced by patient selection. Radiotherapy carries risks like fatigue, urinary or bowel irritation, and may not prevent further progression.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 1,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2026
- Expected to finish
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Dec 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.
Who is studied
Adults with metastatic prostate cancer who develop PSMA PET-defined oligoprogression during otherwise active systemic therapy and undergo progression-directed radiotherapy in routine clinical practice. The registry includes patients with metastatic hormone-sensitive and metastatic castration-resistant prostate cancer treated with SBRT, moderately hypofractionated external beam radiotherapy, brachytherapy, combined approaches, or mixed-modality radiotherapy when clinically appropriate.
- Ages
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18 years and older
- Sex
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Male participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age 18 years or older. * Diagnosis of prostate cancer. * Metastatic hormone-sensitive prostate cancer or metastatic castration-resistant prostate cancer. * Receiving active systemic therapy at the time of oligoprogression. * Oligoprogression defined as up to five new and/or regrowing lesions detected on PSMA PET/CT or PSMA PET/MR, with other known disease sites remaining controlled. * Planned or completed PSMA PET-guided progression-directed radiotherapy to all clinically relevant oligoprogressive lesions as part of routine clinical care. * Radiotherapy may include stereotactic body radiotherapy, moderately hypofractionated external beam radiotherapy, brachytherapy, combined external beam radiotherapy and brachytherapy, or mixed-modality radiotherapy, when clinically appropriate. * Availability of baseline clinical, imaging, treatment, and follow-up data sufficient for registry endpoints. Exclusion Criteria: * Polymetastatic progression not consistent with an oligoprogressive state at the time of index radiotherapy. * More than five new or regrowing lesions at the index oligoprogression episode. * Radiotherapy delivered with purely palliative symptom-control intent rather than progression-directed local control intent. * Lack of sufficient clinical, imaging, treatment, or follow-up information for endpoint assessment. * Any condition that, in the opinion of the treating physician or investigator, makes registry inclusion inappropriate.
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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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Affidea Nu-Med Cancer Diagnostics and Therapy Center
RECRUITINGZamość, Lublin Voivodeship, 22-400, Poland
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