PMID- 15839920 OWN - NLM STAT- MEDLINE DCOM- 20050526 LR - 20121115 IS - 1464-4096 (Print) IS - 1464-4096 (Linking) VI - 95 IP - 7 DP - 2005 May TI - A pooled analysis of three phase III studies to investigate the efficacy, tolerability and safety of darifenacin, a muscarinic M3 selective receptor antagonist, in the treatment of overactive bladder. PG - 993-1001 AB - OBJECTIVE: To evaluate the efficacy, tolerability and safety of darifenacin, a muscarinic M3 selective receptor antagonist (M3 SRA), from an analysis of pooled data from three phase III, multicentre, double-blind clinical trials in patients with overactive bladder (OAB). PATIENTS AND METHODS: After a 4-week washout/run-in period, 1059 adults (85% women) with symptoms of OAB (frequency and urgency with urge incontinence) for > or = 6 months were randomized to once-daily oral treatment with darifenacin (7.5 mg, 337; or 15 mg, 334) or matching placebo (388) for 12 weeks. Efficacy was evaluated using electronic patient diaries that recorded incontinence episodes (including those resulting in a change of clothing or pads), frequency and severity of urgency, voiding frequency, and bladder capacity (volume voided). Safety was evaluated by analysis of adverse events (AEs), withdrawal rates and laboratory tests. RESULTS: Relative to baseline, 12 weeks of treatment with darifenacin resulted in a significant reduction in the median (% change, interquartile range) number of incontinence episodes per week; 7.5 mg (-8.8, -68.4%, -15.1 to -4.4); 15 mg; (-10.6, -76.8%, -17.3 to -5.8: both P < 0.01 vs placebo). There was a significant dose-response trend in each study for which darifenacin 7.5 and 15 mg were evaluated (P < 0.01). There were also significant decreases in the frequency and severity of urgency, voiding frequency, and number of significant leaks (incontinence episodes resulting in a change of clothing or pads; both P < or = 0.001 vs placebo), together with an increase in bladder capacity (both P < 0.01 vs placebo). Darifenacin was well tolerated; the most common AEs were dry mouth and constipation, although together these resulted in few discontinuations (darifenacin 7.5 mg 0.6% of patients; 15 mg 2.1%; placebo 0.3%). The incidence of peripheral/central nervous system and cardiovascular AEs were comparable with those on placebo. CONCLUSIONS: Darifenacin (7.5 and 15 mg once daily) is effective in the treatment of patients with OAB. As predicted by its M3 selectivity and associated M1/M2-sparing profile, darifenacin was well tolerated with no central nervous system or cardiovascular safety concerns. FAU - Chapple, Christopher AU - Chapple C AD - Urology Research, Royal Hallamshire Hospital, Sheffield, UK. c.r.chapple@shef.ac.uk FAU - Steers, William AU - Steers W FAU - Norton, Peggy AU - Norton P FAU - Millard, Richard AU - Millard R FAU - Kralidis, Georg AU - Kralidis G FAU - Glavind, Karin AU - Glavind K FAU - Abrams, Paul AU - Abrams P LA - eng PT - Journal Article PT - Meta-Analysis PT - Research Support, Non-U.S. Gov't PL - England TA - BJU Int JT - BJU international JID - 100886721 RN - 0 (Benzofurans) RN - 0 (Pyrrolidines) RN - 0 (Receptor, Muscarinic M3) RN - APG9819VLM (darifenacin) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Benzofurans/*administration & dosage/adverse effects MH - Clinical Trials, Phase III as Topic MH - Double-Blind Method MH - Female MH - Humans MH - Male MH - Middle Aged MH - Multicenter Studies as Topic MH - Pyrrolidines/*administration & dosage/adverse effects MH - Randomized Controlled Trials as Topic MH - Receptor, Muscarinic M3/*antagonists & inhibitors MH - Treatment Outcome MH - Urinary Incontinence/*drug therapy EDAT- 2005/04/21 09:00 MHDA- 2005/05/27 09:00 CRDT- 2005/04/21 09:00 PHST- 2005/04/21 09:00 [pubmed] PHST- 2005/05/27 09:00 [medline] PHST- 2005/04/21 09:00 [entrez] AID - BJU5454 [pii] AID - 10.1111/j.1464-410X.2005.05454.x [doi] PST - ppublish SO - BJU Int. 2005 May;95(7):993-1001. doi: 10.1111/j.1464-410X.2005.05454.x.