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Title: Efficacy of fesoterodine compared with extended-release tolterodine in men and women with overactive bladder.
Author: Ginsberg D, Schneider T, Kelleher C, Van Kerrebroeck P, Swift S, Creanga D, Martire DL.
Journal: BJU Int; 2013 Aug; 112(3):373-85. PubMed ID: 23826844.
Abstract:
OBJECTIVE: To assess the efficacy of fesoterodine 8 mg vs extended-release (ER) tolterodine 4 mg for overactive bladder (OAB) symptoms in terms of patient-reported outcomes in women and in men. SUBJECTS AND METHODS: Pooled data from two 12-week, randomized, double-blind, double-dummy studies were analysed. Participants eligible for the studies were ≥18 years old, had self-reported OAB symptoms for ≥3 months in 3-day baseline diaries and had ≥8 micturitions and ≥1 urgency urinary incontinence (UUI) episode per 24 h. Individuals were randomized to fesoterodine (4 mg for 1 week then 8 mg for 11 weeks), ER tolterodine (4 mg), or placebo. Changes from baseline in 3-day bladder diary variables and scores from the Patient Perception of Bladder Condition (PPBC), Urgency Perception Scale (UPS), and Overactive Bladder Questionnaire (OAB-q), were assessed, as was the 'diary-dry' rate (the proportion of subjects with >0 UUI episodes according to baseline diary and no UUI episodes according to post-baseline diary). The primary endpoint was the change from baseline to week 12 in UUI episodes. RESULTS: At week 12, women showed significantly greater improvement with fesoterodine 8 mg (n = 1374) than with ER tolterodine 4 mg (n = 1382) and placebo (n = 679) in UUI episodes (primary endpoint), micturition frequency, urgency episodes, and all other diary endpoints (except nocturnal micturitions versus ER tolterodine), and also in scores on the PPBC, UPS, and all OAB-q scales and domains (all P < 0.005). Diary-dry rates in women were significantly greater with fesoterodine (63%) than with tolterodine (57%; P = 0.002) or placebo (48%; P < 0.0001). In men, there were no significant differences in improvement in UUI episodes between any treatment groups at week 12. Improvements in men were significantly greater with fesoterodine 8 mg (n = 265) than with ER tolterodine (n = 275) for severe urgency and the OAB-q Symptom Bother domain and were also significantly greater with fesoterodine than with placebo (n = 133) for micturition frequency, urgency episodes, severe urgency episodes, PPBC responses and scores on all OAB-q scales and domains at week 12 (all P < 0.04). The most frequently reported treatment-emergent adverse events in both genders were dry mouth (women: fesoterodine, 29%; ER tolterodine, 15%; placebo, 6%; men: fesoterodine, 21%; ER tolterodine, 13%; placebo, 5%) and constipation (women: fesoterodine, 5%; ER tolterodine, 4%; placebo, 2%; men: fesoterodine, 5%; ER tolterodine, 3%; placebo, 1%). Urinary retention rates were low in women (fesoterodine, <1%; ER tolterodine, <1%; placebo, 0%) and men (fesoterodine, 2%; ER tolterodine <1%; placebo, 2%). CONCLUSION: This analysis supports the superiority of fesoterodine 8 mg over ER tolterodine 4 mg on diary endpoints, including UUI, symptom bother and health-related quality of life in women. In men, fesoterodine 8 mg was superior to ER tolterodine 4 mg for improving severe urgency and symptom bother.

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