Overview The Safety and Efficacy of OPC-64005 in the Treatment of Adult Attention-deficit/Hyperactivity Disorder Status: Completed Trial end date: 2018-10-31 Target enrollment: Participant gender: Summary A trial to assess the safety and efficacy of OPC-64005 in the treatment of adult attention-deficit/hyperactivity disorder. Phase: Phase 2 Details Lead Sponsor: Otsuka Pharmaceutical Development & Commercialization, Inc.Treatments: Atomoxetine Hydrochloride