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A Randomized, Open-label Trial of Long-acting Injectable Risperidone Versus Oral Antipsychotic Medication in Patients With Bipolar Disorder

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00246246
First Posted: October 31, 2005
Last Update Posted: February 11, 2011
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.
Information provided by:
Janssen-Ortho Inc., Canada
  Purpose
The purpose of this study is to determine the safety and effectiveness of a long-acting injectable formulation of risperidone in stable bipolar patients randomly switched from their current add-on oral antipsychotic (olanzapine, risperidone, or quetiapine) therapy to long-acting injectable risperidone. The patients switched to long-acting injectable risperidone will be compared to patients who continue on their oral antipsychotic treatment regimen

Condition Intervention Phase
Bipolar Disorder Drug: risperidone Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Randomized, Open-label Trial of RISPERDAL® CONSTA™ Versus Oral Antipsychotic Care in Subjects With Bipolar Disorder

Resource links provided by NLM:


Further study details as provided by Janssen-Ortho Inc., Canada:

Primary Outcome Measures:
  • Changes in the Clinical Global Impression - Severity of Illness subscale (CGI-S) from baseline to endpoint, compared between treatment groups

Secondary Outcome Measures:
  • Changes from baseline in the YMRS, MADRS and HAM-A at Months 1 - 6 and endpoint; resource utilization (emergency room visits, hospitalizations); quality of life; patient satisfaction with treatment; time to intervention for manic and depressive episodes

Enrollment: 48
Study Start Date: January 2004
Study Completion Date: April 2006
Detailed Description:
This an open-label, randomized study. Approximately 40 stable bipolar patients who are on an atypical antipsychotic (olanzapine, risperidone, quetiapine) plus adjunct bipolar treatment consisting of (a maximum or two of lithium, valproate or lamotrigine, and, if applicable, one antidepressant) will be randomized to two arms. In one arm, 25 milligrams of long-acting injectable risperidone will replace the oral atypical antipsychotic as adjunct therapy and in the other arm, patients will continue with their current atypical antipsychotic therapy. Trial duration is 6 months. In the long-acting injectable risperidone arm, the oral atypical antipsychotic will be continued (as supplementation) for 3 weeks after the first injection of long-acting risperidone and then discontinued. Investigators, based upon the patient's response, may increase the dose of injectable risperidone to 37.5 mg after 6 weeks on the 25-mg dose and to 50 mg after at least 4 weeks on the 37.5-mg dose. Risperidone oral supplementation is allowed. In the oral antipsychotic only arm, the oral atypical antipsychotic dose can also be increased as required. The primary efficacy outcome will be measured by changes in the Clinical Global Impression - Severity of Illness subscale (CGI-S), from baseline to endpoint, and will be compared between the treatment groups. Safety will be monitored throughout the study. The primary hypothesis is that patients switched to long-acting injectable risperidone will be able to tolerate this formulation of risperidone and maintain or even improve their reduction in bipolar symptomatology compared with baseline, and compared with subjects who continue in the oral antipsychotic arm. The secondary hypothesis is that patients switched to long-acting injectable risperidone will have a longer time to intervention for a mood episode (either mania or depression) as compared with subjects who continue in the oral antipsychotic arm. Risperidone, formulated for intramuscular injection, 25 mg every 2 weeks. Patients treated with injectable risperidone continue their original oral atypical antipsychotic (AAP) dose for 3 weeks. Investigators, at their discretion, may increase the dose of injectable risperidone to 37.5 mg after 6 weeks on the 25-mg dose and to 50 mg after at least 4 weeks on the 37.5-mg dose. Study duration is 6 months.
  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Stable outpatients meeting the DSM-IV criteria for Bipolar I or Bipolar II Disorder
  • YMRS score of <= 19, MADRS score <= 19 and the Clinical Global Impression - Severity of Illness subscale (CGI-S) score <= 4 at screening and baseline
  • Must be receiving stable doses of one oral atypical antipsychotic (olanzapine, risperidone, or quetiapine) in combination with a maximum of two of lithium, valproate or lamotrigine, and, if applicable, one antidepressant)
  • Subject is healthy on the basis of a pre-trial physical examination, medical history and the results of blood biochemistry, hematology tests or urinalysis tests within 2 weeks of randomization (i.e. during screening)
  • Female subjects must be postmenopausal (for at least 1 year), surgically sterile, or practicing an effective method of birth control before entry and throughout the study, and have a negative urine pregnancy test at screening and baseline

Exclusion Criteria:

  • Have a serious unstable medical illness
  • Had previous treatment with a long-acting injectable antipsychotic medication
  • Known to be a risperidone non-responder or have a confirmed or suspected history of hypersensitivity or allergy to risperidone
  • Patients at imminent risk of injury to self or others, or of causing significant damage to property
  • Current drug or alcohol dependence
  Contacts and Locations
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 ClinicalTrials.gov identifier (NCT number): NCT00246246


Sponsors and Collaborators
Janssen-Ortho Inc., Canada
Investigators
Study Director: Janssen-Ortho Inc. Clinical Trial Janssen-Ortho Inc., Canada
  More Information

ClinicalTrials.gov Identifier: NCT00246246     History of Changes
Other Study ID Numbers: CR005818
First Submitted: October 28, 2005
First Posted: October 31, 2005
Last Update Posted: February 11, 2011
Last Verified: February 2011

Keywords provided by Janssen-Ortho Inc., Canada:
risperidone
long-acting injectable
bipolar disorder
intramuscular injection

Additional relevant MeSH terms:
Disease
Bipolar Disorder
Pathologic Processes
Bipolar and Related Disorders
Mental Disorders
Risperidone
Antipsychotic Agents
Serotonin Antagonists
Serotonin Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Tranquilizing Agents
Central Nervous System Depressants
Psychotropic Drugs
Dopamine Antagonists
Dopamine Agents