NEW YORK--(BUSINESS WIRE)--Pfizer Inc. (NYSE: PFE) announced today the top-line primary endpoint result for Toviaz (fesoterodine fumarate) Study A0221049 – Efficacy and Safety of Fesoterodine Flexible Dose Regimen in Vulnerable Elderly Patients with Overactive Bladder. The study met its primary endpoint: treatment with Toviaz was found to be statistically significantly superior to placebo in reducing the mean number of urgency urinary incontinence (UUI) episodes per day at the end of treatment. Further analyses will be conducted and a publication of the comprehensive results is planned at a later date.