A Controlled Study of Olanzapine in Children With Autism

This is a 12-week study which investigates the use of olanzapine to decrease disruptive behaviors sometimes associated with Autism in children, aged 3 to 12 years old. The first six weeks of the study are double-blind and placebo controlled, meaning that patients receive either placebo or olanzapine, and that neither the researchers nor the patients know whether or not they are receiving placebo or olanzapine. In the second six weeks all of the patients receive olanzapine. The purpose in using placebo is that it is otherwise impossible to know how effective the drug is or whether or not the drug causes side effects. Patients treated with placebo can have improvement and can have side effects. In the study patients receive a psychiatric evaluation, physical examination, laboratory tests, and study medication (olanzapine or placebo), free of charge.

Study Overview

Status

Completed

Conditions

Study Type

Interventional

Enrollment (Anticipated)

78

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19124
        • Drexel University College of Medicine c/o Friends Hospital

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

3 years to 12 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Males and females, Aged between 3 and 12 years.
  2. Autistic disorder - DSM-IV criteria.
  3. A score of at least moderately impaired on the CGI-Severity item.
  4. Clinical judgment that medication treatment for autism is indicated.

Exclusion Criteria:

  1. Rett's disorder, childhood disintegrative disorder, Asperger's disorder, and PDD, NOS.
  2. Psychotic disorder (DSM-IV) (including schizophreniform disorder and schizophrenia).
  3. Major depressive disorder (DSM-IV).
  4. Bipolar disorder (DSM-IV).
  5. History of psychoactive drug in the previous 2 weeks prior to phase 1.
  6. A history of treatment with olanzapine for a cumulative period of greater than 2 weeks prior to entering phase 1.
  7. Systemic diseases such as cardiac, renal, thyroid diseases, uncontrolled seizure disorder (seizure disorder that is not controlled by anti-epileptic medication - a child who is seizure free for a period of 6 months on a stable dose of antiepileptic drug would be considered controlled), or diabetes mellitus.
  8. Children with a known medical cause for autistic disorder.
  9. Abnormal fasting blood glucose or history of diabetes.
  10. Baseline body mass index (BMI) greater than the 90th percentile for age and gender (CDC growth charts, Kuczmarski et al, 2000) (because of risk of weight gain).
  11. Baseline QTc >450 msec. Note: Historically, patients we evaluate do not have QTc values >450.
  12. Dyskinesias at baseline (per the criteria of Schooler and Kane, 1982).

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: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
Treatment with olanzapine
Olanzapine tablets given po at a dosage of 2.5 - 20 mg per day for up to 12 weeks.
Other Names:
  • Antipsychotic Drug
Placebo Comparator: 2
Matching placebo treatment
Matching Placebo
Other Names:
  • Placebo controlled

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Children's Psychiatric Rating Scale
Time Frame: Weekly
Weekly

Secondary Outcome Measures

Outcome Measure
Time Frame
Clinical Global Impressions
Time Frame: Weekly
Weekly
Aberant Behavior Checklist
Time Frame: Weekly
Weekly
Treatment Emergent Symptoms Scale
Time Frame: Weekly
Weekly
Olanzapine Untoward Effects Checklist
Time Frame: Weekly
Weekly
Abnormal Involuntary Movement Scale
Time Frame: Weekly
Weekly
Neurological Rating Scale
Time Frame: Weekly
Weekly

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Richard P Malone, MD, Drexel University College of Medicine

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 Start

May 1, 2003

Study Completion

September 1, 2005

Study Registration Dates

First Submitted

April 1, 2003

First Submitted That Met QC Criteria

April 1, 2003

First Posted (Estimate)

April 2, 2003

Study Record Updates

Last Update Posted (Estimate)

March 25, 2015

Last Update Submitted That Met QC Criteria

March 24, 2015

Last Verified

September 1, 2011

More Information

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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