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Investigation of Surgery, Collagenase, and Restorex for the Improvement of Peyronie's

Comparison of Collagenase Clostridium Histolyticum to Surgery for the Management of Peyronie's Disease: A Randomized Trial

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04786106
Acronym
iSCRIP
Enrollment
40
Registered
2021-03-08
Start date
2020-12-30
Completion date
2027-02-15
Last updated
2026-08-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Peyronie's Disease

Keywords

collagenase clostridium histolyticum, RestoreX, plication, incision and grafting, surgery

Brief summary

The purpose of this study is to compare key clinical outcomes of collagenase clostridium histolyticum injections versus surgery for the management of Peyronie's Disease.

Detailed description

After eligible patients have been informed about the study protocol and risks and consent have been given, men will be randomly assigned into either the collagenase clostridium histolyticum + penile traction therapy (CCH + PTT) group or to the surgery + penile traction therapy (surgery + PTT) group. Those in the CCH + PTT group will receive the full 4 series of 8 Xiaflex injections with 1-3 days between each set of 2 injections and 6 weeks prior to the next series. Patients would then use the RestoreX traction device throughout the series to 3 months post-treatment. Those that were assigned the surgery + PTT treatment protocol would undergo surgery using either penile plication or incision and grafting, depending on the degree of curvature and erectile function. Traction using RestoreX will also be prescribed to these men 2-4 weeks post-operatively until 3 months post-treatment. Key clinical outcomes of both treatment protocols will be compared.

Interventions

DRUGCollagenase Clostridium Histolyticum 0.9 MG [Xiaflex] (CCH)

Men in this cohort would receive the full series of 8 Xiaflex injections: 2 injections separated by 1-3 days, repeated 3 additional times with 6 week breaks between treatments.

PROCEDUREPenile Plication Surgery

Men in this cohort would undergo surgery using either penile plication or incision and grafting. The specific surgery would be selected based on commonly used criteria: plication for curvatures \<70 degrees; I\&G used for ≥70 degrees or severe hourglass / hinge deformities. However, the specific surgery (plication vs I\&G) will ultimately be decided based on the primary investigator's clinical judgment.

PROCEDUREIncision and Grafting (I&G) Surgery

Men in this cohort would undergo surgery using either penile plication or incision and grafting. The specific surgery would be selected based on commonly used criteria: plication for curvatures \<70 degrees; I\&G used for ≥70 degrees or severe hourglass / hinge deformities. However, the specific surgery (plication vs I\&G) will ultimately be decided based on the primary investigator's clinical judgment.

DEVICERestoreX Penile Traction Device

RestoreX is a Class I PTT device developed by PathRight Medical, is registered with the FDA, and has randomized controlled data demonstrating efficacy when used for the treatment of PD.

Sponsors

Charitable Union for the Research and Education of Peyronie's Disease
Lead SponsorOTHER
Endo USA Inc., a Keenova Therapeutics Company
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Masking description

The curvature and length assessments will be performed without knowledge as to pre-treatment measurements.

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Men with PD * \>18 years old * Curvature ≥30 degrees * Ability to achieve an erection satisfactory for intercourse with or without PDE5 inhibitors

Exclusion criteria

* Prior treatment with CCH or surgery * Moderate (shadowing) or severe (\>1 cm) penile calcification * Any contraindications to CCH, PTT, or surgery - as determined by the PI

Design outcomes

Primary

MeasureTime frameDescription
Overall satisfaction with treatment1 yearAnswer to SAPS question #1 (How satisfied are you with the effect of your treatment?) to determine overall satisfaction at all time points
Subjective reporting of erectile dysfunction post treatment1 yearComparison of erectile dysfunction complication rates
Subjective reporting of changes in penile sensation post treatment1 yearComparison of changes in penile sensation complication rates
Subjective reporting of changes in penile length post treatment1 yearComparison of perceived changes in penile length complication rates
International Index of Erectile Function, Erectile Function Domain (IIEF) Scores1 yearComparison of IIEF erectile function domain score (Q1-5, 15; min/max 1-30; higher is better)

Secondary

MeasureTime frameDescription
Peyronie's Disease Questionnaire (PDQ) Scores1 yearComparison of PDQ questionnaire scores; Subdomains - psychological and physical (Q1-6; min/max 0-24; lower is better), penile pain (Q7-9; min/max 0-30; lower is better), symptom bother (Q10-15; min/max 0-16; lower is better)
International Index of Erectile Function (IIEF) Scores1 yearComparison of IIEF questionnaire scores-all domains except erectile function (which is a primary endpoint); subdomains: orgasmic function (Q9-10; min/max 0-10; higher is better), sexual desire (Q11-12; min/max 2-10; higher is better), intercourse satisfaction (Q6-8; min/max 0-15; higher is better), overall satisfaction (Q13-14; min/max 2-10; higher is better)
Beck's Depression Inventory (BDI) Scores1 yearComparison of BDI questionnaire scores on depression. 21 items (min/max 0-63, lower is better)
Penile Curvature1 yearComparison of changes in penile curvature
Objective measurements of penile length post treatment (compared to pre-treatment)1 yearComparison of changes in penile length
Interventions required1 yearComparison of subsequent interventions required - surgery or CCH injections
Hospitalizations1 yearNumber of hospitalizations or ER visits resulting from treatment
Non-standardized questionnaire1 yearComparison of non-standardized questionnaire responses

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 27, 2026