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Completed Phase 4 Interventional Results available

Minocycline to Treat Childhood Regressive Autism

ClinicalTrials.gov ID: NCT00409747

Public ClinicalTrials.gov record NCT00409747. 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 Sep 3, 2026, 1:14 AM EDT

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

Official title

Treatment of Childhood Regressive Autism With Minocycline: an Anti-Inflammatory Agent Active Within the CNS

Brief summary

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

There is a subgroup of children with autism that appears to develop typically for a period of time, and then loses social or language skills, or regresses. A recent study by Vargas and co-workers at Johns Hopkins has demonstrated that this regressive type of autism is associated with chronic brain inflammation as shown by an abnormal production of inflammatory cytokines among other abnormalities. This present study will test the effectiveness of minocycline, an antibiotic with anti-inflammatory properties, in treating regressive autism. Although behavioral therapies have improved some symptoms of autism, there are no medical treatments for the disorder, and many children have ongoing behavioral difficulties. A medicine with anti-inflammatory properties may be beneficial for children with regressive autism. This will be an open-label trial, meaning all children in this study will receive minocycline. They will also receive vitamin B6 to reduce the possible chance of side effects of the minocycline. Children ages 3 to 12 with regressive autism may be eligible for this study. The children will take minocycline and vitamin B6 daily for 6 months. Prior to starting the medication and vitamin B6, children will receive a comprehensive diagnostic assessment for autism as well as a physical examination, medical history, and laboratory tests. Children will then receive ongoing assessments to monitor their behavior, communication, language skills, and medical issues at 2 weeks, and at 1, 2, 4, 6, and 12 months. Children who respond to the treatment will receive an additional 3 months of minocycline and vitamin B6.

Study identification

NCT ID
NCT00409747
Recruitment status
Completed
Study type
Interventional
Phase
Phase 4
Enrollment
11 participants

Conditions and interventions

Eligibility (public fields only)

Age range
3 Years to 12 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
Oct 31, 2006
Primary completion
May 31, 2010
Completion
Mar 31, 2011
Last update posted
Dec 10, 2015

2006 – 2011

United States locations

U.S. sites
2
U.S. states
2
U.S. cities
2
Facility City State ZIP Site status
Childrens National Medical Center Washington D.C. District of Columbia
National Institutes of Health Clinical Center, 9000 Rockville Pike Bethesda Maryland 20892

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 NCT00409747, 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 Dec 10, 2015 · Synced Sep 3, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00409747 live on ClinicalTrials.gov.

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