Safety and Efficacy of Collagenase Clostridium Histolyticum in Peyronie's Disease Men With Ventral Curvatures.

To evaluate the safety and efficacy of collagenase clostridium histolyticum (CCH) in men with ventral penile curvatures secondary to Peyronie's Disease (PD). A prospective registry has been maintained of PD men undergoing CCH at our institution. Curvature assessments and subjective questioning were obtained at baseline and following 2 and 4 injection series. Clinicopathologic data were abstracted including history, exam, ultrasound, and end-point curvature assessments. Primary outcomes were adverse events (AE), and secondary outcomes included improvements in curvature by direction and subjective responses to questionnaires. A total of 228 patients undergoing CCH for PD (mean age 57.2 years, mean PD duration 24.3 months) were identified from March 2014 through March 2018. Baseline curvature directions were individually analyzed (total of 329 measures), including 83%, 50%, and 11% with some degree of dorsal, lateral, and ventral angulation. Mean primary and secondary (where applicable) curvatures were 52.9 and 11.4 degrees, respectively. Following treatment, ventral and lateral curvatures experienced greater relative improvements in curvature compared to dorsal (ventral 29.5 degrees [49%], lateral 11.4 [38%], dorsal 15.0 [25%], P < .05). Ventral and lateral curvatures were also more likely to experience ≥50%, ≥75%, and ≥90% improvements compared to dorsal. AEs were similar among curvature directions, and no urethral complications occurred. Men with ventral PD may be effectively treated with CCH with similar AEs compared to other directions. Ventral and lateral curvatures are more likely to experience significant improvements (50% or more) compared to dorsal.

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