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Cariprazine Relative to Placebo in the Prevention of Relapse of Symptoms in Patients With Schizophrenia

This study has been completed.
Gedeon Richter Ltd.
Information provided by (Responsible Party):
Forest Laboratories Identifier:
First received: August 4, 2011
Last updated: September 25, 2015
Last verified: September 2015
The objective of this study is to evaluate the efficacy and safety of cariprazine relative to placebo in the prevention of relapse of symptoms in patients with schizophrenia.

Condition Intervention Phase
Schizophrenia Drug: Cariprazine Drug: Placebo Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: A Randomized, Double-Blind, Placebo-controlled, Parallel-group Study of Cariprazine(RGH-188) in the Prevention of Relapse in Patients With Schizophrenia

Resource links provided by NLM:

Further study details as provided by Forest Laboratories:

Primary Outcome Measures:
  • Time from baseline to the first symptom relapse during the Double-Blind phase [ Time Frame: At 17 Weeks and Bi-Weekly thereafter until week 92 ]

Enrollment: 766
Study Start Date: August 2011
Study Completion Date: November 2014
Primary Completion Date: August 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: 1
Drug: Placebo
Dose-matched placebo, once daily oral administration
Experimental: 2
Cariprazine, 3- 9mg/day (dosage depends on tolerability)
Drug: Cariprazine
Patients who meet eligibility criteria will be administered a once daily oral dose of 3.0 to 9.0 mg cariprazine during the open-label phase and then randomized when they will receive cariprazine or placebo


Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients who have provided informed consent prior to any study specific procedures
  • Patients currently meeting the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition - Text Revision (DSM-IV-TR) criteria for schizophrenia as confirmed by the
  • Patients with normal physical examination, laboratory, vital signs,and/ or ECG
  • Diagnosis of schizophrenia for a minimum of 1 year before Visit 1
  • Positive and Negative Syndrome Scale (PANSS) total score greater than or equal to 70 and less than or equal to 120 at Visit 1 and Visit 2
  • Negative serum B-human chorionic gonadotropin (B-hCG) pregnancy test (applies to female patients of childbearing potential only)
  • Body mass index between 18 and 40kg/m2, inclusive

Exclusion Criteria:

  • Patients currently meeting DSM-IV-TR criteria for schizoaffective disorder, schizophreniform disorder, bipolar I and II and known or suspected borderline or antisocial personality disorder or other DSM-IV-TR axis II disorders
  • Patients in their first episode of Psychosis
  • Treatment-resistant schizophrenia over the last 2 years
  • Positive result from the blood alcohol test or from the urine drug screen for any prohibited medication
  • At imminent risk of injuring self or others or causing significant damage to property
  • Suicide risk
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01412060

  Show 77 Study Locations
Sponsors and Collaborators
Forest Laboratories
Gedeon Richter Ltd.
Study Director: Rui Li Forest Laboratories, Inc. a subsidiary of Actavis plc
  More Information

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Forest Laboratories Identifier: NCT01412060     History of Changes
Other Study ID Numbers: RGH-MD-06
2011-002048-29 ( EudraCT Number )
Study First Received: August 4, 2011
Last Updated: September 25, 2015

Keywords provided by Forest Laboratories:
Schizophrenic Disorder

Additional relevant MeSH terms:
Schizophrenia Spectrum and Other Psychotic Disorders
Mental Disorders processed this record on September 21, 2017