Docosahexaenoic Acid in the Treatment of Autism

April 27, 2015 updated by: Mayo Clinic

A Randomized, Double-Blind, Placebo-Controlled Trial of Docosahexaenoic Acid Supplementation in Children With Autism

The purpose of this study is to test the hypothesis that dietary supplementation with the omega-3 fatty acid docosahexaenoic acid (DHA) improves the behavior of children with autism.

Study Overview

Detailed Description

Autism is a neurodevelopmental disability with an increasing prevalence. Traditional medicine does not offer any cures for autism; thus, many parents of children with autism are attracted to complementary and alternative therapies, one of which is dietary supplementation with the long chain polyunsaturated omega-3 fatty acid, docosahexaenoic acid (DHA). DHA is a critical structural lipid of brain cell membranes and differences in brain DHA content may influence synaptic function, particularly in nutritionally-sensitive areas of the brain, such as the cerebellum and hippocampus, which may be brain structures involved in the etiology of autism. This study is a randomized, double-blind, placebo-controlled trial investigating whether DHA supplementation is an effective treatment for children with autism. Eighty children with autism will be randomized to receive 200mg of DHA or placebo for 6 months. Outcome variables will include total plasma fatty acid patterns and scores on parent and investigator-completed behavioral and developmental rating scales at baseline and after 3 and 6 months of supplementation. Differences between groups after 6 months will be evaluated using regression methods. Regression analysis will be used to detect correlations between plasma total fatty acid DHA contents and scores on the various outcome measures. Results from this study will either provide evidence for a breakthrough biomedical treatment alternative for children with autism or evidenced-based advice to desperate parents in regard to their choices of potential treatments for their children with autism

Study Type

Interventional

Enrollment (Actual)

48

Phase

  • Not Applicable

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

    • Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic

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 10 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Meet DSM-IV criteria for autistic disorder
  • Age 3 to 10 years

Exclusion Criteria:

  • Use of a dietary supplement containing DHA within 90 days of study inclusion
  • Medical history of a disorder of lipid metabolism

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
Active Comparator: 1
DHA supplemented group
Capsule containing 200mg of DHA
Placebo Comparator: 2
Placebo group
Placebo capsule containing corn and soybean oil

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Clinical Global Impressions-Improvement Scale
Time Frame: 6 months
6 months

Secondary Outcome Measures

Outcome Measure
Time Frame
Child Development Inventory
Time Frame: 6 months
6 months
Behavior Assessment Scale for Children
Time Frame: 6 months
6 months
Aberrant Behavior Checklist
Time Frame: 6 months
6 months

Collaborators and Investigators

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

Sponsor

Investigators

  • Principal Investigator: Robert G Voigt, MD, Mayo Clinic

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

October 1, 2005

Primary Completion (Actual)

September 1, 2007

Study Completion (Actual)

November 1, 2007

Study Registration Dates

First Submitted

December 18, 2007

First Submitted That Met QC Criteria

December 19, 2007

First Posted (Estimate)

December 20, 2007

Study Record Updates

Last Update Posted (Estimate)

April 28, 2015

Last Update Submitted That Met QC Criteria

April 27, 2015

Last Verified

April 1, 2015

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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