Using amnion membrane to improve erectile function after prostate surgery

Phase 2 Randomized Trial: Human Amnion Membrane Allograft and Early Return of Erectile Function After Radical Prostatectomy (HAMMER)

Phase 2 Interventional University of Miami · NCT05842057

This study is testing if using a special membrane during prostate surgery can help men recover their erectile function and urinary control faster after the operation.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment240 (estimated)
Ages40 Years to 80 Years
SexMale
SponsorUniversity of Miami Academic / other
Drugs / interventionsradiation
Locations1 site (Miami, Florida)
Trial IDNCT05842057 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of applying a dehydrated human amnion chorion membrane (dHACM) over the nerves during radical prostatectomy to enhance recovery of erectile function and urinary control. The study involves men aged 40 to 80 with localized prostate cancer undergoing bilateral nerve-sparing surgery at the University of Miami. Participants will receive the BioDFence G3 Placental Tissue Membrane during their procedure. The goal is to determine if this intervention can lead to earlier recovery compared to standard surgical practices.

Who should consider this trial

Good fit: Ideal candidates are men aged 40 to 80 with localized prostate cancer who are scheduled for bilateral nerve-sparing radical prostatectomy.

Not a fit: Patients who have a history of pelvic radiation, require non-oral erectile aids, or have significant urinary leakage may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly improve the speed and quality of recovery of erectile function in men after prostate surgery.

How similar studies have performed: While the use of amnion membranes in surgical procedures is gaining interest, this specific application in prostate surgery is relatively novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Men aged 40 to 80 years with localized prostate cancer who are undergoing bilateral nerve-sparing RARP at the University of Miami (UM).

Exclusion Criteria:

1. Men requiring any use of pads for urinary leakage.
2. Men requiring the use of any non-oral erectile aids for erectile dysfunction (ED)
3. Men with baseline EPIC26 scores \< 60.
4. Previous treatment for prostate cancer.
5. Previous history of pelvic radiation.
6. Patients with impaired decision-making capacity.

Where this trial is running

Miami, Florida

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.
Conditions Prostate CancerErectile Dysfunction Following Radical ProstatectomyProstatectomyAllograft Membrane
Last reviewed 2026-06-09 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.