A New Therapeutic Strategy for Urethral Sphincter Insufficiency

Status Completed

Clinical Trial Summary

Stress urinary incontinence is a frequent condition that can be caused by urethral sphincter insufficiency and results in a dramatic deterioration of the quality of life. We developed a new therapeutic strategy for stress urinary incontinence based on the implantation myofibers with their satellite cells in the urethra. The aim of this procedure is to generate functional tissue acting like a new sphincter in the urethra

Clinical Trial Description

stress urinary incontinence is a frequent condition that can be caused by urethral sphincter insufficiency and results in a dramatic deterioration of the quality of life. We developed a new therapeutic strategy for stress urinary incontinence based on the implantation myofibers with their satellite cells. The principle of this procedure relies on the activation in vivo of the satellite cells present around each myofibers. Satellite cell activation is concomitant with myofiber death that occurs after their implantation. Activated satellite proliferate and fuse to form myotubes replacing the parental myofibers thus leading to the reconstitution of the muscle mass that was initially implanted. Preliminary studies in the pig showed the regenerated muscle tissue in the urethra was innervated by urethral nerves and developed tonic contractions acting like a new sphincter. This procedure does not include a phase of satellite cell amplification ex vivo, as standard methods of satellite cell transfer, and rather relies on the natural myogenic capacities of these cells. Thus, the procedure of cell transfer into the urethra is considerably simplified and can be performed in one step in the operating room.This therapeutic strategy could represent an alternative to the artificial urinary sphincter. ;

Study Design

Allocation: Non-Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00472069
Study type	Interventional
Source	Assistance Publique - Hôpitaux de Paris
Contact
Status	Completed
Phase	Phase 1
Start date	April 2007
Completion date	February 2009

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.