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Sponsored by: |
Alza Corporation, DE, USA |
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Information provided by: | Alza Corporation, DE, USA |
ClinicalTrials.gov Identifier: | NCT00269750 |
The purpose of this study is to compare the efficacy and safety of OROS® oxybutynin to that of Ditropan® (immediate-release oxybutynin) for the treatment of patients with urge or mixed urinary incontinence. Oxybutynin is an antispasmodic, anticholinergic medication for the treatment of the symptoms of overactive bladder.
Condition | Intervention | Phase |
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Urge Incontinence |
Drug: OROS® oxybutynin or Ditropan® |
Phase III |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Double-Blind, Active Control, Parallel Assignment, Safety/Efficacy Study |
Official Title: | The Maximum Tolerated Dose and Minimum Effective Dose of OROS® Oxybutynin Compared to Ditropan® (Immediate-Release Oxybutynin) in the Treatment of Patients With Urge or Mixed Urinary Incontinence |
Estimated Enrollment: | 100 |
Study Start Date: | July 1996 |
Estimated Study Completion Date: | February 1997 |
Ditropan® is indicated for the treatment of urge urinary incontinence, however patients tend to discontinue the medication or decrease the dose due to anticholinergic side effects. OROS® oxybutynin, a continuous release formulation, is expected to have fewer anticholinergic side effects than Ditropan® and may provide equal or better efficacy compared to Ditropan®. This is a randomized, multi-center, double-blind, parallel group, dose-escalation study comparing the efficacy and safety of OROS® oxybutynin to Ditropan® for the treatment of urge or mixed urinary incontinence at the minimum effective dose (MED), the maximum tolerated dose (MTD), or the maximum allowable dose (MAD) permitted under this protocol. Patients in both treatment groups begin study drug treatment at an oxybutynin dose of 5 mg per day. The dose is changed in 5 mg increments at 4- to 7-day intervals, depending on the safety and efficacy of the current dose. The maximum allowable dose for Ditropan® is 20 mg per day, which is the maximum daily adult dose specified in its labeling. Because controlled delivery of oxybutynin by an OROS® dosage form could potentially reduce side effects, it is believed that the drug could possibly be tolerated at doses higher than 20 mg per day. Consequently, the maximum allowable dose for OROS® oxybutynin is 30 mg per day, administered as a single daily dose. The primary measures of effectiveness include the change from baseline in the following assessments: the number of urge urinary incontinence episodes per week, the total number of urinary incontinence episodes, and total void frequency (normal and incontinent). Safety evaluations include the incidence of adverse events, physical examination and medical history, clinical laboratory tests, urinalysis, electrocardiograms (ECGs), vital signs, and the Anticholinergic Effects Assessment (ACEA) questionnaire.
OROS® (oxybutynin chloride) 5 mg tablets, one to six tablets per day (5 mg/day to 30 mg/day) as a single morning oral dose for 11 days up to 70 days, and Ditropan (oxybutynin chloride) 5 mg tablets, one to four tablets per day orally (5 mg per day to 5 mg four times per day) for 10 daysup to 61 days.
Ages Eligible for Study: | 40 Years to 75 Years |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
Study ID Numbers: | CR005968 |
Study First Received: | December 22, 2005 |
Last Updated: | April 6, 2007 |
ClinicalTrials.gov Identifier: | NCT00269750 |
Health Authority: | United States: Food and Drug Administration |
Ditropan® OROS® urge oxybutynin mixed urinary incontinence |
Oxybutynin Signs and Symptoms Urologic Diseases |
Urination Disorders Urinary Incontinence Urinary Incontinence, Urge |
Muscarinic Antagonists Parasympatholytics Urological Manifestations Neurotransmitter Agents Molecular Mechanisms of Pharmacological Action Cholinergic Antagonists |
Autonomic Agents Physiological Effects of Drugs Peripheral Nervous System Agents Cholinergic Agents Pharmacologic Actions |