A Study of Treatment Success in Changing From Olanzapine to Long-acting Injectable Risperidone (RISPERDAL® CONSTA™)

NCT ID: NCT00216632

Last Updated: 2012-12-07

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE4
• Total Enrollment: 99 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2005-03-31
• Study Completion Date: 2007-07-31

Brief Summary

The purpose of the study is to evaluate the maintained effectiveness of long-acting injectable risperidone (RISPERDAL® CONSTA™) compared with the previous treatment with oral olanzapine in non-acute subjects with schizophrenia or schizoaffective disorder considered in need of a therapy change.

Detailed Description

Although many schizophrenia patients currently take oral antipsychotic medications, it is estimated that up to 75% of them have difficulty adhering to the daily oral regimen. Long-acting injectable formulations may eliminate the need for daily medication and enhance patient compliance with the treatment regimen. In addition, transitioning to a different antipsychotic drug is at times a necessary step in the clinical management of patients with schizophrenia due to different reasons, including insufficient response and poor tolerability. This is an open-label, non-randomized study of a formulation of risperidone (RISPERDAL® CONSTA™) (coated microspheres) injected into the muscle at week intervals over 6 months in patients with schizophrenia or schizoaffective disorder. During the first 3 weeks, oral olanzapine treatment is continued to provide therapy until the risperidone long-acting injectable reaches effective drug levels. The oral olanzapine treatment is tapered off within 1 week for one group of patients and within 3 weeks for another group. Assessments of effectiveness include the Positive and Negative Syndrome Scale (PANSS), overall severity of illness measured by the Clinical Global Impression (CGI) scale, and quality of life evaluated by the SF-36 questionnaire. Safety evaluations include incidence of adverse events through out the study and Extrapyramidal Symptom Rating Scale (ESRS), clinical laboratory tests (biochemistry, hematology, and urinalysis), and physical exams, including body weight, at specified intervals. The study hypothesis is that changing to treatment every 2 weeks with long-acting risperidone will provide a maintained effectiveness patients with schizophrenia or schizoaffective disorder and will be generally well-tolerated Risperidone, long-acting formulation for intramuscular injection (25 milligrams[mg]) every 2 weeks for 6 months. Investigator may adjust dosage to 37.5mg or 50mg (maximum) or supplement risperidone injections with risperidone tablets (2mg maximum), according to symptoms and treatment response.

Conditions

Schizophrenia; Psychotic Disorders

Keywords

Schizophrenia, Schizoaffective disorder; antipsychotic agents; long-acting risperidone; intramuscular injection

Study Design

• Allocation Method: NON_RANDOMIZED
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Interventions

risperidone

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• Diagnosis of schizophrenia or schizoaffective disorder according to criteria of Diagnostic and StatisticalManual of Mental Diseases, 4th edition (DSM-IV)
• patients must have been symptomatically non-acute on a stable dose of olanzapine the last month before the screening visit
• patients must be currently treated with oral olanzapine at doses stable for the last month and willing to switch to long-acting injectable risperidone for one of the following reasons: insufficient treatment response, adverse events, compliance issues, or patient's request.

Exclusion Criteria

• Patients not treated with effective doses of olanzapine (acc. to SmPC) prior to study initiation
• known hypersensitivity, intolerance, or unresponsiveness to risperidone
• history of drug allergy or neuroleptic malignant syndrome, a rare psychotropic-drug reaction, which may be characterized by confusion, reduced consciousness, high fever or pronounced muscle stiffness
• tardive dyskinesia, a complication of neuroleptic therapy involving involuntary movements of facial muscles
• pregnant or nursing females, or those lacking adequate contraception

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Janssen Pharmaceutica N.V., Belgium

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Janssen Pharmaceutica N.V. Clinical Trial

Role: STUDY_DIRECTOR

Janssen Pharmaceutica N.V.

Countries

France; Kuwait; Portugal; Saudi Arabia

References

Rosa F, Schreiner A, Thomas P, Sherif T. Switching patients with stable schizophrenia or schizoaffective disorder from olanzapine to risperidone long-acting injectable. Clin Drug Investig. 2012 Apr 1;32(4):267-79. doi: 10.2165/11599080-000000000-00000.

Reference Type: DERIVED

PMID: 22339430 (View on PubMed)

Other Identifiers

CR003211

Identifier Type: -

Identifier Source: org_study_id