New radiation technique aims to protect erections in prostate cancer patients
NCT ID NCT04861194
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a precise type of radiation therapy (MRgRT) that aims to protect the nerves and blood vessels needed for erections in 70 men with low- or intermediate-risk prostate cancer. Participants receive 5 high-dose radiation sessions guided by MRI. The goal is to see if this approach can prevent erectile dysfunction while still controlling the cancer.
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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 70 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2021
- Expected to finish
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Aug 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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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: * Age ≥18 years * Histologically proven adenocarcinoma of the prostate * Low-risk or intermediate-risk prostate cancer according to NCCN risk categories (low risk: T1c-T2a, Gleason score ≤6, and PSA \<10 µg/L; intermediate risk: T2b-T2c or Gleason score 7 or PSA 10-20 µg/L) * Patients with pT1a/b tumor diagnosis after transurethral resection of the prostate (TURP) * Domain score of 17-25 on the International Index of Erectile Function-5 (IIEF-5) questionnaire * Karnofsky score of 70-100 * Written informed consent Exclusion Criteria: * Use of (neo-)adjuvant androgen deprivation therapy * High-risk prostate cancer according to NCCN risk categories (T3a or Gleason score 8-10 or PSA \>20 µg/L) * Patients with "bulky" iT3 tumor diagnosis * Previous pelvic irradiation or radical prostatectomy * Clinical evidence of metastatic disease * Patients who are unable to undergo MRI * Patients who are incompetent to sign written informed consent
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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 Medical Center Utrecht
RECRUITINGUtrecht, Utrecht, 3584CX, Netherlands
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?