A Long Term Study of Long-acting Injectable Risperidone in the Treatment of Patients With Schizophrenia

This study has been completed.
Information provided by:
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
ClinicalTrials.gov Identifier:
First received: October 7, 2005
Last updated: June 6, 2011
Last verified: January 2011
The purpose of this study is to document the long term safety of a long-acting injectable formulation of risperidone in the treatment of patients with schizophrenia who have previously been treated with long-acting risperidone. Efficacy will also be evaluated.

Condition Intervention Phase
Drug: risperidone
Phase 3

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: An Open Label, Long Term Trial of Risperidone Long Acting Microspheres in the Treatment of Patients Diagnosed With Schizophrenia

Resource links provided by NLM:

Further study details as provided by Johnson & Johnson Pharmaceutical Research & Development, L.L.C.:

Primary Outcome Measures:
  • To accumulate long-term safety data: incidence of adverse events and clinical evaluations (physical examination, Extrapyramidal Symptom Rating Scale [ESRS], laboratory tests, ECGs).

Secondary Outcome Measures:
  • To evaluate long-term efficacy: Positive and Negative Syndrome Scale for Schizophrenia and the Clinical Global Impression-Severity of Illness subscale (CGI-S) every 3 months, including last visit.

Enrollment: 100
Study Start Date: November 2001
Study Completion Date: February 2004
Detailed Description:
This is an open-label, long-term study of a flexible dose of a long-acting injectable formulation of risperidone (risperidone LAI) injected into the muscle at 2 week intervals for at least 12 months in patients diagnosed with schizophrenia. It is an extension of an open label study of patients with schizophrenia (RIS-USA-259) switching from treatment with an oral antipsychotic medication to long-acting injectable risperidone. Safety evaluations include incidence of adverse events, physical examinations, clinical laboratory tests (biochemistry, hematology, and urinalysis), electrocardiograms (ECGs), and Extrapyramidal Symptom Rating Scale (ESRS), a scale for assessing muscle tone, gait, and abnormal movements. Efficacy assessments include measurements using the Positive and Negative Syndrome Scale for Schizophrenia (PANSS) and the Clinical Global Impression-Severity of Illness scale (CGI-S). Risperidone (25-50milligrams [mg]) injections, long-acting formulation, every 2 weeks for at least 1 year. Dosages may be increased (50 mgs maximum) or decreased at discretion of the investigator. Supplementary risperidone tablets (1mg) may be administered.

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Completion of RIS-USA-256 within 7 days

Exclusion Criteria:

  • History of neuroleptic malignant syndrome, a rare psychotropic-drug reaction, which may be characterized by confusion, reduced consciousness, high fever or pronounced muscle stiffness
  • Significant and untreated or unstable medical illness such as diabetes, hypertension, angina
  • Serious illness of the liver, kidney, or significant disturbances of the cardiac, pulmonary, gastrointestinal, endocrine, neurological system
  • Pregnant or nursing females, or those lacking adequate contraception
  • Known hypersensitivity or unresponsiveness to risperidone
  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00236587

Sponsors and Collaborators
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Study Director: Johnson & Johnson Pharmaceutical Research & Development, L.L. C. Clinical Trial Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
  More Information

Additional Information:
No publications provided

ClinicalTrials.gov Identifier: NCT00236587     History of Changes
Other Study ID Numbers: CR003274 
Study First Received: October 7, 2005
Last Updated: June 6, 2011
Health Authority: United States: Food and Drug Administration

Keywords provided by Johnson & Johnson Pharmaceutical Research & Development, L.L.C.:
Intramuscular injection
Antipsychotic agents
Long-acting risperidone

Additional relevant MeSH terms:
Mental Disorders
Schizophrenia and Disorders with Psychotic Features
Antipsychotic Agents
Central Nervous System Agents
Central Nervous System Depressants
Dopamine Agents
Dopamine Antagonists
Molecular Mechanisms of Pharmacological Action
Neurotransmitter Agents
Pharmacologic Actions
Physiological Effects of Drugs
Psychotropic Drugs
Serotonin Agents
Serotonin Antagonists
Therapeutic Uses
Tranquilizing Agents

ClinicalTrials.gov processed this record on February 08, 2016