- Are 18 to 65 years of age, inclusive, at the time of informed consent (outpatients only), with a diagnosis of schizophrenia as defined by Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) criteria and confirmed by both the M.I.N.I. for Schizophrenia and Psychotic Disorders Studies, and an adequate clinical psychiatric evaluation.