New combo radiation aims to cut prostate cancer treatment time
NCT ID NCT06817668
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study is testing whether a new, shorter course of radiation therapy is safe and tolerable for men with unfavorable or higher-risk prostate cancer. It combines external beam radiation with a single internal radiation boost (brachytherapy). The trial will enroll 31 participants and monitor side effects for 3 months 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
- Radiation therapy (external beam and internal brachytherapy)
- What this could lead to
- If successful, this could offer a shorter, more convenient radiation treatment option for men with higher-risk prostate cancer.
- What could go wrong
- This is a small, early-phase study (31 people) focused on safety, not effectiveness. The combination may cause more side effects than standard radiation.
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 31 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2025
- 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.
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: 1. ≥ 18 years old at the time of informed consent 2. Capable of providing informed consent and HIPAA authorization 3. Karnofsky performance score ≥ 70 4. Pathologically confirmed unfavorable intermediate, high, and very high-risk prostate cancer per treating physician 5. Candidate plans to undergo the standard of care prostate high dose brachytherapy boost procedure Exclusion Criteria: 1. Prior pelvic irradiation treatment 2. Prior rectal surgery which precludes instrumentation with rectal ultrasound probe. 3. Evidence of nodal or distant disease on screening diagnostic work up. 4. Prior prostatectomy, Holmium laser enucleation of the prostate or transurethral resection of the prostate procedure 5. International Prostate Symptom Score (IPSS) score \> 16 despite medical therapy
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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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Indiana University Melvin and Bren Simon Comprehensive Cancer Center
RECRUITINGIndianapolis, Indiana, 46202, 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?