MRI-Guided radiation aims to cut bowel side effects in prostate cancer
NCT ID NCT06171269
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether using MRI scans to guide radiation can lower the dose to healthy parts of the prostate while targeting cancer spots. The goal is to reduce bowel-related side effects without losing cancer control. About 60 men with intermediate- or high-risk prostate cancer will receive daily radiation for 4 weeks, plus hormone therapy for 6–24 months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Radiation therapy
- What this could lead to
- If successful, this approach could reduce bowel side effects from radiation while still controlling prostate cancer, improving quality of life.
- What could go wrong
- This is a small, early-phase study with only 60 participants, so results may not apply to everyone. The lower radiation dose might also be less effective at controlling cancer.
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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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 60 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2024
- Expected to finish
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Oct 2028
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: * Adult (≥ 18 years old) male patients with an ECOG Performance Status 0-2 * Histologically-confirmed, MRI-visible prostate adenocarcinoma with NCCN intermediate- or high-risk disease1 without extra-pelvic metastasis. Exclusion Criteria: * Distant metastases * Prior active treatment for prostate cancer including radical prostatectomy, high-intensity focused ultrasound (HIFU), cryosurgery, ADT, or cytotoxic chemotherapy for treatment of prostate cancer. Patients with prostate cancer on active surveillance prior to the study are not excluded if they have not received active treatment. * Prior pelvic radiotherapy including brachytherapy. * Additional active concurrent malignancies (except localized cutaneous squamous or basal cell carcinomas). * Comorbid conditions that, in the opinion of the treating radiation oncologist, preclude the patient from safely receiving the protocol-specified treatment including RT and/or ADT. * Patients with contraindications to MRI including patients with ferromagnetic materials in their body (e.g. bioimplants, surgical hardware, shrapnel), patients who are unable to receive contrast due to history of allergy or impaired renal function (glomerular filtration rate \< 30 mil/min), and patients unable to tolerate MRI for other reasons (e.g. significant claustrophobia). * Patients for whom hydrogel or hyaluronic acid spacer will be placed. * Patients incapable of giving informed consent. * Patients who are unable to adhere to the experimental protocols for any reason.
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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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University of Chicago Medicine Comprehensive Cancer Center
RECRUITINGChicago, Illinois, 60637, 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?