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Anticholinergic vs. Botox Comparison Study


Efficacy and Impact of Botulinum Toxin A Versus Anticholinergic Therapy for the Treatment of Bothersome Urge Urinary Incontinence




Urinary incontinence is a prevalent condition that markedly impacts quality of life and disproportionately affects women. Overactive Bladder syndrome (OAB) is defined as symptoms of urgency and frequency with urge urinary incontinence (OAB-wet) and without urge incontinence (OAB-dry). Conservative first line treatments for urge incontinence combined with other OAB symptoms (OAB-wet) include behavioral therapy, pelvic floor training +/- biofeedback, or the use of anticholinergic medications. These treatment modalities may not result in total continence and often drug therapy is discontinued because of lack of efficacy, side effects and cost or because of not wanting to take a pill. Behavioral therapy and pelvic muscle exercises require consistent, active intervention by the patient which is often not sustained. Thus, the objective of the Anticholinergic vs Botox Comparison Study (ABC) is to determine whether a single intra-detrusor injection of botulinum toxin A (Botox A®) is more effective than a standardized regimen of oral anticholinergics in reducing urge urinary incontinence. The null hypothesis is that there is no difference in the change from baseline in average number of urge urinary incontinence episodes over 6 months between groups.

Study Status: Completed


Condition Intervention Phase
Urge Urinary Incontinence
Overactive Bladder
Drug: Botulinum toxin A (Botox A®)
Drug: Solifenacin 5mg
Drug: Solifenacin 10mg
Drug: Trospium chloride
Phase 3

Verified by NICHD Pelvic Floor Disorders Network September, 2013

Sponsored by: NICHD Pelvic Floor Disorders Network
Information provided by: NICHD Pelvic Floor Disorders Network identifier: NCT01166438

Study Type: Interventional

Study Design: Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Cleveland Clinic
Cleveland, Ohio 44195
United States

Anthony Visco, MD., Study Chair

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