Penile Curvature

The goal of this clinical trial is to learn if Platelet-Rich Plasma Injections from Cord Blood (CB-PRP) is useful in Peyronie disease. The primary goal is evaluation of patient satisfaction at 1 and 3 months after treatment completion using the PDQ Questionnaire Secondary Objectives are: * Measurement of penile curvature measured with a goniometer with spontaneous erection before and after treatment (1 and 3 months) * Measurement of penile length in stretching before and after treatment (1 and 3 months) * Evaluation of the improvement in quality of life, through the Short-Form Health Survey 12 (SF-12) health status questionnaire and through the Hospital Anxiety and Depression Scale (HADS) Participants will be randomized in two groups: * penile extender alone * penile extender + CB PRP injection (1 injection every 15 days - 3 in totalinjections)