Can a second injection fix penile curvature?
NCT ID NCT05777031
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether a drug called Xiaflex (collagenase clostridium histolyticum) is safe and effective for men with Peyronie's disease who have already tried platelet-rich plasma (PRP) injections. Twelve men with stable penile curvature between 30 and 90 degrees will receive Xiaflex injections into the penile plaque. Researchers will track side effects and measure changes in curvature and symptom bother.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Collagenase clostridium histolyticum (Xiaflex)
- What this could lead to
- If it works, this could offer a treatment option for men with Peyronie's disease who previously tried PRP without success.
- What could go wrong
- This is a very small, early-phase study with only 12 participants, so results may not apply to everyone. Side effects like penile bruising or pain are possible.
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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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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12 people
The number who actually took part.
- Started
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Oct 2023
- Expected to finish
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Jan 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 to 75 years
- 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. Be able to provide written informed consent 2. Have a diagnosis of PD with evidence of stable disease as determined by the investigator 3. Patient must have palpable penile plaque 4. Penile curvature deformity of \>30° to \<90° 5. Agree to comply with all study related tests/procedures. 6. Prior intralesional platelet rich plasma treatment within the past 18 months and desire secondary treatment of penile curvature Exclusion Criteria: 1. Previous penile surgery of any kind (except circumcision and condyloma removal), such as penile lengthening, penile cancer surgery, penile plication, grafting, penile prosthesis. 2. Previous intralesional injection therapy with CCH for PD within six months. Patients with failed therapy greater than six months ago may be included. 3. Previous history of priapism or penile fracture 4. PD characterized by a ventral plaque 5. Severe erectile dysfunction as characterized with an IIEF score ≤ 12 6. Hour-glass deformity 7. Unwilling to participate 8. Medically unfit for sexual intercourse as deemed by the principal investigator 9. Patients scheduled to undergo an elective medical procedure during the investigation timeframe that will interfere with autologous PRP injection therapy. 10. Have a serious comorbid illness/condition/behavior that, in the opinion of the investigator, may compromise the safety or compliance of the subject or preclude successful completion of the study.
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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.
Contacts and locations
Locations
-
University of Miami
Miami, Florida, 33136, United States
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University of Miami - Desai Sethi Urology Institute
Miami, Florida, 33136, United States
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