Delayed Dose Collagenase Clostridium Histolyticum (CCH) Protocol for Men With Peyronie's Disease

Last updated: February 12, 2025
Sponsor: Charitable Union for the Research and Education of Peyronie's Disease
Overall Status: Active - Recruiting

Phase

4

Condition

Peyronie's Disease

Treatment

Collagenase Clostridium Histolyticum

Sildenafil

RestoreX

Clinical Study ID

NCT06649539
CUREPD120
  • Ages > 18
  • All Genders

Study Summary

Our team has previously demonstrated efficacy in performing a novel collagenase Clostridium histolyticum (CCH) injection protocol in men who previously failed to achieve a response to an initial 4 series of CCH.

The objective of the current study is to evaluate a protocol that incorporates limited in-office modeling for up to 4 series, followed by up to 2 additional salvage series to determine safety and efficacy compared to historical data.

Participants will receive up to 4 series of CCH injections using our previously published protocol, with mild in-office modeling. CCH injections are given on back-to back days, after which they are counseled to utilize Restorex and sildenafil daily, as instructed. Patients will undergo mild in-office modeling on day 2.

The sexual partners of study participants will also be invited to enroll in the study and will complete non-validated questionnaires detailing their level of support for the patient's treatment.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Men with Peyronie's Disease

  • Older than 18 years old

  • Curvature ≥30 degrees

  • Ability to achieve an erection satisfactory for intercourse with or withoutphosphodiesterase-5 (PDE5) inhibitors

  • The patient exhibits a palpable plaque consistent with Peyronie's Disease

  • For partners, the only inclusion criteria is being willing to complete aquestionnaire

Exclusion

Exclusion Criteria:

  • Prior surgical treatment on the penis (other than circumcision)

  • Prior treatment with CCH injections

  • Any contraindications to CCH - as determined by the PI

Study Design

Total Participants: 40
Treatment Group(s): 3
Primary Treatment: Collagenase Clostridium Histolyticum
Phase: 4
Study Start date:
October 11, 2024
Estimated Completion Date:
October 31, 2029

Study Description

The current study would prospectively follow 40 men through the following treatment protocol:

  • Men would receive 4 series of CCH injections according to the protocol below, which represents a modified version of our most recently published technique.13

    • Medication administered on back-to-back days

    • Total of 0.9 mg administered with each series, diluted to 0.8 mL

    • Mild in-office modeling performed on treatment day 2 of each series

    • Wraps performed ranging from 2-4 full-time and 2-4 part-time days to minimize bruising

    • Sildenafil 25 mg nightly beginning treatment day 2 until 6 weeks after final injection of the final series.

    • Restorex initiated beginning on post-injection day 3 or as soon as tolerated - 30 min daily, continuing until 6 weeks after final injection of the final series.

  • Note that men may stop sooner if they are satisfied before completing the 4 series.

  • If the patient is not satisfied with outcomes by the end of the 4th series, they would be permitted to enter the 'salvage' phase of the treatment protocol.

    • This would be performed 9-12 months after the 4th series of injections.

    • The technique would be similar to the one noted above with the exception of more aggressive in-office modeling as described in our prior publication and per our ongoing randomized trial.

    • The men would receive up to two additional series per this protocol for a maximum number of cycles being 6 in total.

At the time of initial enrollment, partners of study participants will be invited to enroll in the study and will be administered non-validated questionnaires designed to assess the partner's overall support for the ongoing treatment protocol.

Assessments and study questionnaires will be administered at baseline, with the 1st injection of each series, 6 weeks after completing the 4th series of CCH injections, and 1 year after completion of the final series of CCH injections.

Connect with a study center

  • Male Fertility and Peyronie's Clinic

    Orem, Utah 84057
    United States

    Active - Recruiting

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