A Study of the Safety and Effectiveness of Risperidone Versus Placebo for the Treatment of Conduct Disorder in Children With Mild, Moderate, or Borderline Mental Retardation

January 20, 2011 updated by: Janssen Pharmaceutica N.V., Belgium

The Safety And Efficacy Of Risperidone Versus Placebo In Conduct Disorder and Other Disruptive Behavior Disorders In Mild, Moderate And Borderline Mentally Retarded Children Aged 5 To 12 Years

The purpose of the study is to assess the effectiveness and safety of an oral solution of risperidone (an antipsychotic medication) versus placebo in the treatment of conduct disorder in children with mild, moderate, or borderline mental retardation.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Conduct and psychiatric disorders are found among a higher proportion of people with mental retardation than among people who are not mentally retarded. Among the many different treatment approaches to conduct disorder are drug therapy, behavioral treatment, psychotherapy, and training for cognitive and social skills. Studies have suggested that neuroleptic drugs, such as risperidone, may be beneficial in treating conduct disorder in mental retardation. This is a randomized, double-blind, placebo-controlled study to evaluate the effectiveness of risperidone (0.02 to 0.06 mg/kg/day) compared with placebo in the treatment of children 5 to 12 years of age with mild, moderate, or borderline mental retardation, and who display destructive behaviors. The study has two phases: a run-in phase of 1 week and a treatment phase of 6 weeks. Patients receive placebo to be taken orally once a day during the first week (run-in). On the basis of scores on the Nisonger Child Behavior Rating Form (N-CBRF) and the Vineland Adaptive Behavior Scale after the first week, patients either continue in the double-blind treatment phase or discontinue the study. During the treatment phase patients receive an oral solution of risperidone (increasing gradually to a maximum dose of 0.06 mg/kg) or placebo to be taken once daily for 6 weeks. A parent or caregiver evaluates the child's behavior and symptoms at scheduled office visits during the course of treatment. The primary measure of effectiveness is the change in the Conduct Problem subscale of the Nisonger Child Behavior Rating Form (N-CBRF) at end of treatment compared with baseline. Additional assessments of effectiveness include: the Aberrant Behavior Checklist (ABC), the Behavioral Problems Inventory (BPI), and the Clinical Global Impression (CGI). Safety assessments include the incidence of adverse events throughout the study; weekly measurement of vital signs (pulse, temperature, blood pressure) and evaluation of the presence and severity of extrapyramidal symptoms by the Extrapyramidal Symptom Rating Scale (ESRS); and clinical laboratory tests performed both before study initiation and at the end of treatment. The study hypothesis is that risperidone is well tolerated and effective for the treatment of conduct disorder in children aged 5 to 12 years with mild, moderate, or borderline mental retardation. Risperidone oral solution 1 mg/mL or placebo oral solution, once daily on Days 1 and 2 at dose of 0.01 mg/kg body weight. Dose is 0.02 mg/kg on Day 3, increasing gradually to 0.06 mg/kg (maximum) once daily through 6 weeks. Dosage may be increased or decreased at investigator's discretion.

Study Type

Interventional

Enrollment (Actual)

118

Phase

  • Phase 3

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

5 years to 12 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Diagnosis of Conduct Disorder, Oppositional Defiant Disorder, or Disruptive Behavior Disorder not otherwise specified, by the Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV), Axis I criteria (patients with conduct disorder who also meet DSM-IV criteria for Attention Deficit/Hyperactivity Disorder (AD/HD) are eligible)
  • total rating of >=24 on the Nisonger Child Behavior Rating Form (N-CBRF) Conduct Problem Subscale
  • Diagnosis of Mild Mental Retardation, Moderate Mental Retardation or Borderline Intellectual Functioning by DSM-IV Axis II criteria (represents intelligence quotients (IQs) ranging from 35 to 84)
  • Vineland Adaptive Behavior Scale <=84.

Exclusion Criteria:

  • Diagnosis of Pervasive Development Disorder or Schizophrenia and/or Other Psychotic Disorders by DSM-IV criteria
  • mental impairment caused by head injury
  • seizure disorder currently requiring medication
  • history of tardive dyskinesia (a complication of neuroleptic therapy involving involuntary movements of facial muscles) or neuroleptic malignant syndrome (a rare psychotropic-drug reaction, which may be characterized by confusion, reduced consciousness, high fever or pronounced muscle stiffness)
  • known hypersensitivity, intolerance, or unresponsiveness to risperidone.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Change in the Conduct Problem subscale of the Nisonger Child Behavior Rating Form (N-CBRF) at end of treatment compared with baseline

Secondary Outcome Measures

Outcome Measure
Changes in Aberrant Behavior Checklist (ABC), Behavioral Problems Inventory (BPI), and Clinical Global Impression (CGI) at end of treatment compared with baseline; incidence of adverse events throughout study.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Janssen Pharmaceutica N.V., Belgium

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Completion (Actual)

October 1, 1998

Study Registration Dates

First Submitted

December 16, 2005

First Submitted That Met QC Criteria

December 16, 2005

First Posted (Estimate)

December 19, 2005

Study Record Updates

Last Update Posted (Estimate)

January 24, 2011

Last Update Submitted That Met QC Criteria

January 20, 2011

Last Verified

January 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CR006019

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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