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Completed Phase 4 Interventional Results available

A Study of the Effectiveness and Safety of Two Doses of Risperidone in the Treatment of Children and Adolescents With Autistic Disorder

ClinicalTrials.gov ID: NCT00576732

Public ClinicalTrials.gov record NCT00576732. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 27, 2026, 3:19 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Risperidone in the Treatment of Children and Adolescents With Autistic Disorder: A Double-Blind, Placebo-Controlled Study of Efficacy and Safety, Followed by an Open-Label Extension Study of Safety

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to evaluate the effectiveness (change in level of irritability and related behaviors) and safety and tolerability of the administration of 2 different fixed dose levels of risperidone (an atypical antipsychotic drug) compared with placebo in children or adolescents who have autism, and to evaluate the safety and tolerability of the drug for additional 26 weeks after the initial 6-week study period.

Study identification

NCT ID
NCT00576732
Recruitment status
Completed
Study type
Interventional
Phase
Phase 4
Enrollment
96 participants

Conditions and interventions

Eligibility (public fields only)

Age range
5 Years to 17 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 2007 (Type not available)
Primary completion
Sep 2009 (Actual)
Completion
Mar 2010 (Actual)
Last update posted
May 9, 2014

2007 – 2010

United States locations

U.S. sites
20
U.S. states
13
U.S. cities
20
Facility City State ZIP Site status
Not listed Dothan Alabama — —
Not listed Phoenix Arizona — —
Not listed Sacramento California — —
Not listed Santa Ana California — —
Not listed Boca Raton Florida — —
Not listed Miami Florida — —
Not listed Smyrna Georgia — —
Not listed Hoffman Estates Illinois — —
Not listed Naperville Illinois — —
Not listed Lake Charles Louisiana — —
Not listed Manhasset New York — —
Not listed New York New York — —
Not listed Staten Island New York — —
Not listed The Bronx New York — —
Not listed Columbus Ohio — —
Not listed Oklahoma City Oklahoma — —
Not listed Philadelphia Pennsylvania — —
Not listed Houston Texas — —
Not listed Fairfax Virginia — —
Not listed Portsmouth Virginia — —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00576732, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 9, 2014 · Synced Oct 27, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00576732 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →