Inclusion Criteria:  Male or female, 18 to 60 years of age, inclusive. Current diagnosis of schizophrenia according to DSM-5 criteria as determined by the modified Structured Clinical Interview for DSM-5 (modified SCID-5). Diagnosis of schizophrenia for a minimum of 1 year before Visit 1. Current psychotic episode < 4 weeks duration at Visit 1. PANSS total score ≥ 70 and ≤ 120 at Visit 1 and Visit 2. Rating of at least 4 (moderate) on at least two of the following four PANSS positive symptoms: delusions (P1), hallucinatory behavior (P3), conceptual disorganization (P2), suspiciousness/persecution (P6) at Visit 1 and Visit 2. Patient must identify a caregiver who provides consents to participate in the study. In the opinion of the Investigator, the patient has significant risk for suicidal behavior during the course of his/her participation in the study.  Exclusion Criteria:  Currently meeting DSM-5 criteria for any of the following:  Schizoaffective disorder, schizophreniform disorder, and other psychotic disorders; Bipolar I or Bipolar II Disorder; Intellectual developmental disorder, delirium, dementia, amnestic and other cognitive disorders; Known or suspected borderline or antisocial personality disorder or other DSM 5 personality disorder of sufficient severity to interfere with participation in this study; Substance use disorder (other than nicotine) within the 3 months prior to Visit 1 of this study.  Patients in their first episode of psychosis. Treatment-resistant schizophrenia over the last 2 years, defined as little or no symptomatic response to at least 2 courses of antipsychotic treatment of an adequate duration (at least 6 weeks) and at a therapeutic dose (according to the package insert for the antipsychotic treatment).