Overview A Study to Assess the Cognitive Effects of Fesoterodine in Elderly Subjects Status: Completed Trial end date: 2010-09-01 Target enrollment: Participant gender: Summary The study is designed to evaluate elements of cognitive function in subjects receiving either fesoterodine or alprazolam. Phase: Phase 1 Details Lead Sponsor: PfizerTreatments: AlprazolamFesoterodine