TOKYO & PRINCETON, N.J.--(BUSINESS WIRE)--Otsuka Pharmaceutical Co., Ltd. (OPC) and Otsuka Pharmaceutical Development & Commercialization, Inc. (OPDC) announced today that an independent data monitoring committee (IDMC) has recommended the early termination of its Phase 3, 52-week, placebo-controlled, intramuscular depot aripiprazole trial. This is due to the study successfully meeting efficacy criteria at a protocol-specified interim analysis. The Aripiprazole Intramuscular Depot Study in Schizophrenia-U.S., evaluated the efficacy and safety of this investigational once-monthly IM depot formulation for the maintenance treatment of schizophrenia.