Overview Exploratory Study of TAC-302 in Detrusor Underactivity Patients With Overactive Bladder. Status: Completed Trial end date: 2020-03-27 Target enrollment: Participant gender: Summary The purpose of this study is to evaluate the efficacy and safety of TAC-302 in detrusor underactivity patients with overactive bladder. Phase: Phase 2 Details Lead Sponsor: Taiho Pharmaceutical Co., Ltd.