Earlier studies were able to show that an improvement of the erectile function following a non-nerve sparing radical prostatectomy could be achieved using an autologous nerve graft. The investigators evaluate the use of the implantation of the allogenic nerve graft Avance® in patients undergoing non nerve-sparing radical prostatectomy.
In this prospective randomised and single-blind, clinical phase-IV study, 60 patients are randomized into the treatment group and the control group. The follow-up is at least 24 months. The inclusion criteria were localized prostate cancers cT3 and/or Gleason score ≥ 7 (a or b) and/or prostate-specific antigen (PSA) ≥ 20 ng/ml and furthermore an erectile function with an IIEF ≥ 21 (IIEF-6). The operation carried out is a standardised, robot assisted laparoscopic radical prostatectomy with total excision of both neurovascular bundles. The Outcome measurement is done with the "quality of life questionnaire before and after prostate surgery" that includes the "International Index of Erectile Function" (IIEF) questionnaire. The limitations are a small cohort, a short observation period and the lack of statistical analysis due to a still low number of patients.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
30
Interposition of resected neurovascular bundles with allograft Avance®
No interposition of resected neurvascular bundles
Kantonsspital Winterthur
Winterthur, Canton of Zurich, Switzerland
Erectile function score (IIEF: international index of erectile function) after non nerve sparing radical prostatectomy
Erectile function score (IIEF: international index of erectile function) after non nerve sparing radical prostatectomy. To show a complete impotence in the control group and an enhancement of the initial postoperative impotence in the treatment group
Time frame: 24 months
Number of Participants with Adverse Events as a Measure of Safety and Tolerability
Monitoring of side effects and complications in connection with the nerve-implantation.
Time frame: 24 months
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