Clinical Trial: A Study Evaluating Oxybutynin in Patients With Neurogenic Overactive Bladder Associated With a Neurological Condition

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: A Multi-center, Open-label, Dose-titration Pilot Study Evaluating the Efficacy and Safety of Oxybutynin Transdermal Systems in Patients With Neurogenic Bladder Resulting From Spinal Cord Injury

Brief Summary: This study will evaluate the efficacy and safety of an anticholinergic drug treatment administered by transdermal patch to treat overactive bladder in adults who have spinal cord injury.

Detailed Summary: The Dose Titration Period began with a 3.9 mg/day or 7.8 mg/day as a starting dose after the completion of a 3-day diary for baseline evaluations, including urodynamic testing. The clean intermittent catheterization (CIC) frequency remained constant throughout the Dose Titration Period. The dose was adjusted every two weeks during the Dose Titration Period by increasing one dose level, at the investigator's discretion, based on the patient's symptoms. If a patient achieved complete continence and reported tolerable or absence of side effects, the patient was continued at that dose for the duration of the 8-week Titration Period. If a patient reported unacceptable side effects, the dose was reduced by one level. This reduced dose was considered the maximum tolerable dose for the patient and the patient continued at that dose for the duration of the 8-week Titration Period. The dose levels evaluated were 3.9 mg/day, 7.8 mg/day, 9.1 mg/day, and 11.7 mg/day. Of the 22 subjects in the modified intent-to-treat population evaluated for efficacy, 0 were in the 3.9 mg/day dose group, 3 were in the 7.8 mg/day dose group, 8 were in the 9.1 mg/day dose group, and 11 were in the 11.7 mg/day dose group.
Sponsor: Watson Pharmaceuticals

Current Primary Outcome: Average Number of Catheterizations Without Leaking Per Day [ Time Frame: 8 weeks ]

Baseline in number of daily catheterizations without leaking per day as recorded in a 3-day urinary diary.


Original Primary Outcome: Measures of incontinence and leakage

Current Secondary Outcome:

  • Patch Adhesion [ Time Frame: 8 weeks ]
  • Urodynamic Measurements [ Time Frame: 8 weeks ]
  • Urinary Leakage and Catheterization Data [ Time Frame: 8 weeks ]


Original Secondary Outcome: Safety, patch adhesion.

Information By: Watson Pharmaceuticals

Dates:
Date Received: September 13, 2005
Date Started: December 2004
Date Completion:
Last Updated: April 7, 2010
Last Verified: April 2010