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Urology. 2003 Aug;62(2):237-42.

Comparative efficacy and safety of transdermal oxybutynin and oral tolterodine versus placebo in previously treated patients with urge and mixed urinary incontinence.

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  • 1Department of Urology, Vanderbilt University, Nashville, Tennessee, USA.

Abstract

OBJECTIVES:

To compare the efficacy and safety of an oxybutynin transdermal delivery system (OXY-TDS) and oral, long-acting tolterodine (TOL-LA) with placebo in previously treated patients with urge or mixed urinary incontinence.

METHODS:

After withdrawal of their current antimuscarinic therapy, 361 adult patients were randomized to 12 weeks of double-blind, double-dummy treatment with twice weekly OXY-TDS 3.9 mg/day, daily TOL-LA 4 mg, or placebo. Evaluations included change from baseline in patient urinary diary symptoms, incontinence-specific quality of life, and safety.

RESULTS:

OXY-TDS 3.9 mg/day and TOL-LA 4 mg/day significantly reduced the number of daily incontinence episodes (median change -3 OXY-TDS and -3 TOL-LA versus -2 placebo; P <0.05), increased the average void volume (median change 24 and 29 mL versus 5.5 mL, P <0.01), and improved quality of life (incontinence impact questionnaire [IIQ] total score, P <0.05; Urogenital Distress Inventory Irritative Symptom subscale, P <0.05) compared with placebo. The most common adverse event for OXY-TDS was localized application site pruritus (14% versus 4% placebo) accompanied by a low incidence of systemic side effects (eg, dry mouth 4.1%). Anticholinergic adverse events occurred with greatest frequency during TOL-LA treatment (dry mouth 7.3% versus 1.7% placebo, P <0.05).

CONCLUSIONS:

OXY-TDS and TOL-LA are effective and comparable treatments for patients with urge and mixed incontinence. OXY-TDS improves systemic safety with regard to anticholinergic side effects. Local skin irritation occurs in some OXY-TDS patients.

PMID:
12893326
[PubMed - indexed for MEDLINE]
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