Title
A phase II dose-ranging study of mirabegron in patients with overactive bladder
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
London ,
Subject
Human medicine
Source (journal)
International urogynecology journal / International Urogynecological Association. - London
Volume/pages
24(2013) :9 , p. 1447-1458
ISSN
0937-3462
ISI
000323432600006
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Mirabegron is a potent and selective beta(3)-adrenoceptor agonist that may represent an alternative treatment option in place of antimuscarinics for patients with overactive bladder. Patients completed a single-blinded, 2-week placebo run-in period followed by 12 weeks of randomized (n = 928) double-blinded treatment with mirabegron oral controlled absorption system (OCAS) 25, 50, 100, or 200 mg once-daily (QD), placebo or tolterodine extended release (ER) 4 mg QD. The primary endpoint was change from baseline to end-of-treatment in mean number of micturition episodes/24 h. Secondary endpoints included changes in mean volume voided per micturition; mean number of urinary incontinence, urgency urinary incontinence, and urgency episodes/24 h; severity of urgency; nocturia; and quality of life measures. Safety parameters included vital signs, adverse events, laboratory tests, electrocardiogram measurements and post-void residual volume. Mirabegron 25, 50, 100, and 200 mg resulted in dose-dependent reductions (improvements) from baseline to end-of-treatment in micturition frequency of 1.9, 2.1, 2.1, and 2.2 micturitions/24 h respectively, versus 1.4 micturitions/24 h with placebo (p a parts per thousand currency signaEuro parts per thousand 0.05 for the mirabegron 50-, 100-, and 200-mg comparisons). There was a statistically significant improvement with mirabegron compared with placebo for most secondary endpoints including quality of life variables. While there was a significant (p < 0.05) increase from baseline in pulse rate in the mirabegron 100-mg and 200-mg groups, this was not associated with an increased incidence of cardiovascular adverse events. The favorable efficacy and tolerability of mirabegron in this phase II dose-finding study has led to its successful advancement into a phase III clinical development program.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/af253c/5490.pdf
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