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CompletedNCT00692315Updated Apr 15, 2016

Treating Oxidative Stress in Children With Autism

An interventional study of Methylcobalamin (methylB12) in Autistic Disorder, sponsored by Arkansas Children's Hospital Research Institute. Completed at 1 site in United States. Open to participants aged 3 Years to 7 Years. Per ClinicalTrials.gov, last updated 2016-04-15.

Sponsored by Arkansas Children's Hospital Research Institute · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Non-randomized
Ages
3 Years to 7 Years
Sex
All
01

Study summary

An open label trial was undertaken in 40 autistic children to determine whether treatment with metabolic precursors methylcobalamin and folinic acid would improve plasma biomarkers of oxidative stress and measures of core behavior using the Vineland Adaptive Behavior Scales (VABS). Metabolites involved in methionine and glutathione synthesis and VABS behavior scores were measured before and after a three month intervention period.

The results indicated that pre-treatment metabolites in autistic children were significantly different from values in age-matched control children. The three month intervention resulted in significant increases in cysteine, cysteinylglycine, and glutathione (GSH, p \< 0.001). The oxidized disulfide form of glutathione (GSSG) was decreased (p \< 0.008) and the glutathione redox ratio (GSH/GSSG) was increased after treatment (p \< 0.001). Although significantly improved, these metabolites remained below control levels after intervention (p > 0.01). Similarly, increases in VABS composite score and sub-scores for Socialization, Communication, and Daily Living Skills increased after treatment (p \< 0.007) but also remained below standard scores.

02

Conditions studied

  • Autistic Disorder

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Keywords

  • glutathione
  • methionine
  • folinic acid
  • redox
  • oxidative stress
  • behavior
03

In context

Autistic Disorder

1,344 studies on the registry are indexed under Autistic Disorder; 334 are open to participants now.

This study's enrollment of 40 is below the median of 45 across 1,044 interventional studies indexed under Autistic Disorder.

Browse Autistic Disorder studies →

Lead sponsor

Arkansas Children's Hospital Research Institute is the lead sponsor of 118 studies on the registry; 27 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
3 Years to 7 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Clinical diagnosis of Autistic Disorder by DSM-IV 299.0 or CARS score >30

Exclusion criteria

Exclusion Criteria:

  • Primary genetic disease with co-morbid autism
  • frequent seizures
  • recent surgery
  • active infection with fever
  • high dose vitamin/mineral supplements
  • severe gastrointestinal symptoms
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
40 participants (actual)

Study arms

  • Experimental
    Methyl B12

    Subcutaneous injection of 75 micrograms/Kg

    Drug: Methylcobalamin (methylB12)

  • Experimental
    Folinic Acid

    400 micrograms orally twice a day

    Drug: Methylcobalamin (methylB12)

Interventions

  • DrugMethylcobalamin (methylB12)

    75 ug/Kg methylB12 every 3 days by subcutaneous injection

    Also known as: Vitamin B12

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What researchers measure

Primary outcomes

  1. Glutathione redox status (GSH/GSSG)

    HPLC analysis

    Time frame: 3 months

Secondary outcomes

  1. Vineland Adaptive Behavior Scales

    Behavior measure

    Time frame: 3 months

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Study locations

1 site
  • Arkansas Children's Hospital Research Institute
    Little Rock, Arkansas 72202, United States
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References and documents

Publications

  • James SJ, Melnyk S, Fuchs G, Reid T, Jernigan S, Pavliv O, Hubanks A, Gaylor DW. Efficacy of methylcobalamin and folinic acid treatment on glutathione redox status in children with autism. Am J Clin Nutr. 2009 Jan;89(1):425-30. doi: 10.3945/ajcn.2008.26615. Epub 2008 Dec 3. PubMed 19056591 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 15, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00692315
Lead sponsor
Arkansas Children's Hospital Research Institute
First posted
Jun 6, 2008
Start date
Sep 2006
Primary completion
Jun 2007
Completion
Dec 2007
Last update
Apr 15, 2016

Study contacts

S. Jill James, PhD
principal investigator · University of Arkansas

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2016. You cannot join it, but the record below documents what was studied.

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