Comparing brachytherapy and SBRT for erectile dysfunction in prostate cancer

Erectile Dysfunction in Good Prognosis Prostate Cancer: a Phase III Medico-economic Study Comparing Brachytherapy to Stereotactic Body Radiotherapy

NA · Center Eugene Marquis · NCT03830788

This study is testing whether brachytherapy or SBRT is better at treating prostate cancer while also looking at how each treatment affects erectile dysfunction.

Quick facts

PhaseNA
Study typeInterventional
Enrollment240 (estimated)
Ages18 Years and up
SexMale
SponsorCenter Eugene Marquis (other)
Locations20 sites (Albi and 19 other locations)
Trial IDNCT03830788 on ClinicalTrials.gov

What this trial studies

This study compares the effectiveness of brachytherapy and stereotactic body radiotherapy (SBRT) in treating low and intermediate risk prostate cancer, with a specific focus on the impact of these treatments on erectile dysfunction. A total of 240 patients will be randomized into two groups: one receiving SBRT and the other receiving brachytherapy. The primary goal is to conduct a cost-utility analysis over three years, measuring the cost per quality-adjusted life year (QALY) gained. Secondary objectives include evaluating the cost-effectiveness of both treatment methods.

Who should consider this trial

Good fit: Ideal candidates are men with biopsy-proven low or intermediate risk prostate adenocarcinoma who are potent and eligible for curative treatment.

Not a fit: Patients undergoing androgen deprivation therapy or those with contraindications for brachytherapy or MRI will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into which treatment option minimizes erectile dysfunction while being cost-effective for patients with prostate cancer.

How similar studies have performed: Previous studies have shown varying success with similar approaches, but this specific comparison of SBRT and brachytherapy in this context is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Main inclusion criteria

* Biopsy proven prostate adenocarcinoma,
* Low risk prostate cancer according to d'Amico (T1-T2a and PSA \<10 ng/ml, and Gleason score 6) or intermediate risk prostate cancer according d'Amico but excluding tumor with Gleason score 7 (4 + 3),
* Indication of a curative treatment by brachytherapy validated in multidisciplinary consultation meeting,

Main exclusion criteria

* Androgen deprivation therapy,
* Contraindication for prostate Iodine 125 brachytherapy (Prostate volume \> 50 cc, impossibility if general anesthesia).
* Contraindication for Resonance Magnetic Imagery (RMI) (claustrophobia, pacemaker)
* Participation to another research which could have an impact on the study treatment and the outcomes

Where this trial is running

Albi and 19 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Prostate Cancer, SBRT, brachytherapy, localized low-risk and intermediate risk prostate cancer

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.