OBJECTIVETo elucidate patient characteristics that impact symptom-related bother and erectile function in patients with Peyronie disease (PD).
METHODSA post hoc analysis used data from patients with PD (ie, had PD symptoms ≥12 months and penile curvature deformity of 30-90 degrees) who received ≥1 injection of study medication in 2 phase 3 trials of collagenase clostridium histolyticum (
RESULTSPain during intercourse (P = .02) and PD bother (P <.0001) had a significant impact on International Index of Erectile Function, erectile function scores. The Peyronie's Disease Questionnaire bother domain score was significantly affected by penile curvature deformity, penile shortening, pain during intercourse, and the presence of plaques (P ≤.0005 for all), with pain during intercourse having the greatest impact (maximum likelihood estimation ± standard error = .496 ± .030; P <.0001). Erectile function did not appear to be directly influenced by the presence of plaques, penile curvature deformity, or penile shortening but was associated with PD bother and penile pain.
CONCLUSIONThis post hoc analysis provides a conceptual framework through which disease characteristics may impact PD-related bother and erectile function in patients with PD. UROLOGY 107: 155-160, 2017. © 2017 The Author(s). Published by Elsevier Inc. P eyronie disease (PD) is a penile condition that is characterized by focal fibrosis of the tunica albuginea that results in the formation of plaque(s), curvature or deformation of the penis, and, in some cases, pain. 1 The prevalence of PD ranges from 3.2% to 11.8% of men, depending on the definition of PD used and the population studied. [2][3][4] The underlying cause of PD is unknown but likely involves abnormal wound healing. 5 This abnormal response facilitates collagen deposition, changes in collagen fiber content, and plaque formation. [5][6][7] Most patients with PD present between the ages of 52 and 57 years. 2,8 Although pain typically resolves over time, 1 penile curvature or deformity persists and may impact patients' psychological health, relationships with their sexual partners, and emotional well-being. 9,10 For example, a singlecenter, cross-sectional study demonstrated that more than half of patients with PD experienced relationship problems because of the condition, and 81% reported emotional problems. 9 Furthermore, an observational study of 92 men with PD demonstrated that almost half (48%) indicated that they were depressed and that the depression had not resolved over time. 11 Interestingly, in that study, depression was significantly associated with patients' perception of penile shortening, 11 suggesting that depression may