Abstract
To compare efficacy and tolerability of solifenacin 5 mg/day versus other oral antimuscarinic agents for the treatment of overactive bladder (OAB). Literature searches of MEDLINE, Embase, and the Cochrane Library were undertaken to identify randomized controlled trials in OAB (2000-2015) for antimuscarinic agents. A network meta-analysis (NMA) was performed to estimate efficacy and tolerability outcomes for solifenacin 5 mg/day relative to other antimuscarinics. The NMA included 53 eligible trials (published, n = 48; unpublished on search date, n = 5). Solifenacin 5 mg/day was significantly more effective than tolterodine 4 mg/day for reducing incontinence and urgency urinary incontinence (UUI) episodes, but significantly less effective than solifenacin 10 mg/day for micturition; no other statistically significant differences were noted for efficacy. Solifenacin 5 mg/day had a statistically significant lower risk of dry mouth compared with darifenacin 15 mg/day, fesoterodine 8 mg/day, oxybutynin extended-release 10 mg/day, oxybutynin immediate-release (IR) 9-15 mg/day, tolterodine IR 4 mg/day, propiverine 20 mg/day, and solifenacin 10 mg/day. There were no significant differences between solifenacin 5 mg/day and other antimuscarinics for risk of blurred vision, or for 11 of 17 active comparators for risk of constipation. This NMA suggests that the efficacy of solifenacin 5 mg/day is at least similar to other common antimuscarinics across the spectrum of OAB symptoms analyzed, and is more effective than tolterodine 4 mg/day in reducing incontinence and UUI episodes. Solifenacin 5 mg/day has a lower risk of dry mouth compared with several agents.
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