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A Study of Cariprazine in Patients With Chronic Stable Schizophrenia

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00839852
Recruitment Status : Completed
First Posted : February 10, 2009
Results First Posted : August 22, 2019
Last Update Posted : August 22, 2019
Gedeon Richter Ltd.
Information provided by (Responsible Party):
Forest Laboratories

Brief Summary:
This is an outpatient study to evaluate the long-term safety, tolerability, and pharmacokinetics of cariprazine in patients with schizophrenia.

Condition or disease Intervention/treatment Phase
Schizophrenia Drug: Cariprazine Phase 2

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 97 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Long-term, Open-label Extension Study of the Safety and Tolerability of RGH-188 (Cariprazine) in Patients With Schizophrenia
Actual Study Start Date : May 31, 2009
Actual Primary Completion Date : August 31, 2010
Actual Study Completion Date : August 31, 2010

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Schizophrenia

Arm Intervention/treatment
Experimental: Cariprazine 1.5mg
Participants received cariprazine 1.5 mg capsule once, twice or three times a day depending on their response and tolerability
Drug: Cariprazine
Cariprazine was supplied in capsules.
Other Name: RGH-188

Primary Outcome Measures :
  1. Change From Baseline to Week 48 in the PANSS Total Score [ Time Frame: Baseline to Week 48 ]
    The Positive and Negative Syndrome Scale (PANSS) is a 30-item rating scale that assesses the positive and negative symptoms of individuals with schizophrenia. Responses to the 30 items are based on a structured clinical interview with the patient and on supporting clinical information obtained from family, hospital staff, or other reliable informants. Of the 30 psychiatric parameters measured by the scale, 7 assess positive symptoms (eg, delusions, grandiosity); 7 assess negative symptoms (eg, blunted affect, emotional withdrawal); and 16 assess general psychopathology (eg, poor attention, active social avoidance). Each item is scored on a 7-point scale (1 = absent, 2 = minimal, 3 = mild, 4 = moderate, 5 = moderately severe, 6 = severe, and 7 = extreme). The PANSS total score can range from 30 to 210. A higher score indicates worse symptoms. A negative change score indicates improvement.

Secondary Outcome Measures :
  1. Change From Baseline to Week 48 in the CGI-S Score [ Time Frame: Baseline to Week 48 ]
    The Clinical Global Impressions-Severity (CGI-S) scale is a 7-point scale that measures the overall severity of the illness compared with the severity of illness in other patients the Investigator has observed. The Investigator assesses the severity of the patient's illness as one of the following: 1 = Normal, not at all ill; 2 = Borderline ill; 3 = Mildly ill; 4 = Moderately ill; 5 = Markedly ill; 6 = Severely ill; 7 = Among the most extremely ill patients. The CGI-S score can range from 1 to 7. A higher score indicates more severe illness. A negative change score indicates improvement.

Information from the National Library of Medicine

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, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 61 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients who have completed the double-blind treatment period of the lead-in study RGH-MD-16 (NCT 00694707)
  • Patients who have responded to double-blind treatment in the lead-in study as defined as ≥ 20% reduction relative to Visit 2 (Baseline) of the Positive and Negative Syndrome Scale (PANSS) total score and a Clinical Global Impressions-Severity (CGI-S) score of ≤ 3.
  • Patients eligible to continue as outpatients based on the opinion of the Principal Investigator.
  • Patients must have a caregiver to ensure treatment compliance.

Exclusion Criteria:

  • Patients with clinically significant abnormalities on physical examination, laboratory, vital signs, and/or electrocardiogram (ECG).

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00839852

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Sponsors and Collaborators
Forest Laboratories
Gedeon Richter Ltd.
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Study Director: Suresh Durgam, MD Forest Research Institute, a subsidiary of Forest Laboratories, Inc.

Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Forest Laboratories Identifier: NCT00839852    
Other Study ID Numbers: RGH-MD-17
First Posted: February 10, 2009    Key Record Dates
Results First Posted: August 22, 2019
Last Update Posted: August 22, 2019
Last Verified: August 2019
Additional relevant MeSH terms:
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Schizophrenia Spectrum and Other Psychotic Disorders
Mental Disorders
Antipsychotic Agents
Tranquilizing Agents
Central Nervous System Depressants
Physiological Effects of Drugs
Psychotropic Drugs