Effects of Hyperbaric Oxygenation Therapy on Adaptive, Aberrant and Stereotyped Behaviors in Children With Autism
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ClinicalTrials.gov Identifier: NCT00404846 |
Recruitment Status : Unknown
Verified May 2009 by The Center for Autism and Related Disorders.
Recruitment status was: Active, not recruiting
First Posted : November 29, 2006
Last Update Posted : May 5, 2009
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Autism | Procedure: Hyperbaric Oxygenation Therapy | Not Applicable |
Positive treatment effects of HBOT have been reported in a number of studies, while others have found no demonstrable effect. Studies to date have evaluated effects on a variety of conditions, and utilized diverse research methods and generally await replication. Despite its increasing usage in children with autism, and the preliminary anecdotal reports indicating positive outcome, there is a paucity of well-controlled studies of HBOT in this population, which precludes clinicians from recommending and/or implementing it as an evidence-based treatment. It is clearly important therefore, to evaluate carefully the treatment effects of HBOT using robust research designs in this population.
Hypotheses
- Hyperbaric Oxygenation Therapy will be associated with a positive effect on symptoms of autism.
- Treatment gains obtained from Hyperbaric Oxygenation Therapy will be maintained at follow-up.
Specific Aims
- Evaluate the effects of Hyperbaric Oxygenation Therapy on behavioral and cognitive symptoms of autism before, during, and after treatment.
- Determine the percentage of children with autism who respond positively to 80 HBOT treatment cycles and the extent to which they do so.
- Determine the extent to which any observed treatment effects are maintained up to three months after HBOT.
Study duration: Two weeks baseline, 10-15 week acute phase, with 1- and 3-month follow-ups.
All participants will spend one hour per session in hyperbaric oxygen chambers, for a minimum of 6 and a maximum of 10 sessions per week. A total of 80 cycles of one hour compressions must be completed within 15 weeks for all participants
Treatment Group: Pressure and Frequency
- 1.3 atmosphere absolute (ATA)
- 24% oxygen
- One session = 1 hour
- Total of 80 cycles of one hour compressions must be completed within 15 weeks.
Placebo Group: Pressure and Frequency
- Close to ambient air pressure, but the chamber needs enough pressure to inflate: 1.05 to 1.1 atmosphere absolute (ATA)
- Room Air
- One session = 1 hour
- Total of 80 cycles of one hour compressions must be completed within 15 weeks.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 40 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double |
Primary Purpose: | Treatment |
Study Start Date : | November 2006 |
Actual Primary Completion Date : | September 2007 |
Estimated Study Completion Date : | December 2007 |
- Direct Behavioral Observations
- The Vineland Adaptive Behavior Scales: Expanded Edition (VABS)
- Peabody Picture Vocabulary Test (PPVT)
- Test of Visual-Perceptual Skills (TVPS)
- The Beery-Buktenica Developmental Test of Visual-Motor Integration (VMI)
- Autism Diagnostic Observation Schedule (ADOS)
- The Behavior Rating Inventory of Executive Functioning (BRIEF)
- Aberrant Behavior Checklist
- Clinical Global Impression Scale

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Ages Eligible for Study: | 2 Years to 14 Years (Child) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Autism diagnosis
- Access to CARD clinics as necessary for the study duration
- Caregiver commitment to completing 80 sessions in 10-15 weeks
Exclusion Criteria:
- Any prior treatment with HBOT
- New dietary treatment within 3 months prior to enrollment,
- New biomedical treatment within 3 weeks prior to enrollment
- Inadequate vision or hearing for the purposes of test administration
- Non-ambulatory or require more than minimum support walking
- Unstable medical disorder
- History of, or current seizure disorder
- History of, or current asthma
- History of, or current pulmonary cysts
- History of, or current emphysema
- History of, or current severe claustrophobia
- Current otitis media
- Current sinus infection
- Current upper respiratory tract infection (URTI)

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00404846
United States, California | |
Center for Autism and Related Disorders | |
Tarzana, California, United States, 91356 |
Principal Investigator: | Jeff Bradstreet, MD | ICDRC |
ClinicalTrials.gov Identifier: | NCT00404846 |
Other Study ID Numbers: |
906001 |
First Posted: | November 29, 2006 Key Record Dates |
Last Update Posted: | May 5, 2009 |
Last Verified: | May 2009 |
Hyperbaric oxygenation therapy HBOT Autism |
Autistic Disorder Autism Spectrum Disorder Child Development Disorders, Pervasive Neurodevelopmental Disorders Mental Disorders |