Overview Positron Emission Tomagraphy (PET) Study Following a Single Oral Dose of OPC-34712 Status: Completed Trial end date: 2009-07-01 Target enrollment: Participant gender: Summary Determine the degree of striatal D2 receptor occupancy induced by OPC-34712 at differenht dose levels in healthy volunteers. Phase: Phase 1 Details Lead Sponsor: Otsuka Pharmaceutical Development & Commercialization, Inc.Collaborator: Otsuka Pharmaceutical Co., Ltd.