The Efficacy of a Suppository Based On Phenolmicin P3 And Bosexil (Mictalase®) In Control of Irritative Symptoms in Patients Undergoing Thulium Laser Enucleation of Prostate: A Single-Center, Randomized, Controlled, Open Label, Phase III Study

Background: Several studies described post-operative irritative symptoms after laser enucleation of prostate, sometimes associated with urge incontinence, probably linked to laser-induced prostatic capsule irritation, and potential for lower urinary tract infections We aimed to evaluate the efficacy of a suppository based on Phenolmicin P3 and Bosexil (Mictalase®) in control of irritative symptoms in patients undergoing thulium laser enucleation of prostate (ThuLEP).Methods: In this single-center, prospective, randomized, open label, phase-III study, patients with indication to ThuLEP were enrolled (Dec2019-Feb2021 - Institutional ethics committee STS CE Lazio approval no.1/N-726 - ClinicalTrials.gov NCT05130918). The report conformed to CONSORT 2010 guidelines. Eligible patients were 1:1 randomized. Randomization defined Group A: patients who were administered Mictalase® suppositories twice a day for 5 days, then once a day for other 10 days; Group B: patients who did not receive Mictalase® (“controls”). Study endpoints were evaluated at 15 and 30 days postoperation. Primary endpoint included evaluation of effects of the suppository on irritative symptoms by administering IPSS+QoL questionnaire. Secondary endpoint included evaluation of effects on urinary tract infections by performance of urinalysis with urine culture.Results: 111 patients were randomized: 56 in Group A received Mictalase®. Baseline and perioperative data were comparable. At 15-days, no significant differences were found in terms of IPSS+QoL scores and urinalysis parameters. A significant difference in the rate of positive urine cultures favored Group A (p=0.04). At 30-days follow-up, significant differences were found in median IPSS score (6 [IQR 3–11] versus 10 [5–13], Group A vs B, respectively, p=0.02). Urinalysis parameters and rate of positive urine cultures were not significantly different.Conclusions: The present randomized trial investigated the efficacy of Mictalase® in control of irritative symptoms and prevention of lower urinary tract infections in patients undergoing ThuLEP. IPSS improvement 30-days postoperation was more pronounced in patients who received Mictalase®. Lower rate of positive urine culture favored Mictalase® group 15-days postoperatively. The clinical trial has been registered on ClinicalTrials.gov on November 23rd, 2021 – Registration number NCT05130918.