Precision radiation: could a special scan improve prostate cancer treatment?
NCT ID NCT04402151
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This phase II trial is testing whether using a special PET/MR scan (PSMA) to guide radiation therapy can improve outcomes for men with high-risk prostate cancer. Fifty participants will receive targeted radiation boosts to areas identified by the scan. The main goal is to see if this approach increases the number of men who remain cancer-free two years after treatment.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Gallium-68 labeled PSMA-HBED-CC (a radioactive tracer for imaging)
- What this could lead to
- If successful, this approach could offer a more precise radiation treatment for high-risk prostate cancer, potentially reducing recurrence rates.
- What could go wrong
- This is a small, early-phase trial with only 50 participants. It may not show a significant benefit over standard treatments, and there are risks from radiation exposure.
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.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2020
- Expected to finish
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Dec 2027
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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21 to 90 years
- 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.
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: * Male aged 21 years or older. * Ability to provide signed informed consent and willingness to comply with protocol requirements. * Pathologic confirmation of high-risk adenocarcinoma of the prostate gland as follows: a. Gleason 8-10 or tertiary component 5 disease and/or b. PSA of 20 ng/ml or greater and/or c. Tumor stage of T2c or greater; OR Unfavorable intermediate risk (Gleason 4+3=7, \>50% of cores involved, or 2 or more intermediate risk factors which include Gleason 7 disease, PSA 10-20, or T2b disease) * Participants must agree to use an acceptable form of birth control and utilize condoms for a period of seven days after each PSMA injection, if engaged in sexual activity. * No evidence of metastatic disease, including pelvic lymph nodes. Exclusion Criteria: * Clinical and/or technical factors that would compromise statistical analysis of the PET and/or MR. * Contraindications to PSMA IV administration * Contraindications to prostate SBRT (history of transurethral resection of prostate; prostate size greater than 150 cc; AUA score greater than 20; history of prior radiation to the prostate) * Other unspecified reasons that, in the opinion of investigators, make the subject unsuitable for enrollment * Patients on or intending to take abiraterone will be excluded
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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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Weill Cornell Medicine
RECRUITINGNew York, New York, 10065', United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- A scanner in the operating room could show surgeons exactly where prostate cancer remains
- New PET tracer aims to light up hidden cancer targets
- Can daily adaptive radiotherapy spare healthy tissue in prostate cancer?
- Can a radioactive tracer and MRI reveal prostate Cancer's true extent?
- Five-Fraction radiation plus hormone therapy tested against High-Risk prostate cancer
- Can a 10-Hour eating window fight cancer fatigue?