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National Institutes of Health
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Clinical Trials

Autism Spectrum Disorders (Pervasive Developmental Disorders)

Featured Studies

Featured studies include only those currently recruiting participants. They are listed according to the date they were added to the ClinicalTrials.gov registry, with the most recent studies appearing first.

  • Long-Term Olanzapine Treatment in Children With Autism.
    Interventional study. This study will determine the short- and long-term safety and effectiveness of the drug olanzapine (Zyprexa®) for reducing symptoms of autism in children. Ages 3-12. Location in Philadelphia, PA.
  • Methylphenidate for Attention Deficit Hyperactivity Disorder and Autism in Children.
    Interventional study. In the initial phase, this study will examine the cognitive and behavioral/emotional differences in children who have an Autism Spectrum Disorder (ASD) (e.g., Autistic Disorder, Asperger's Disorder, Pervasive Developmental Disorder-Not Otherwise Specified) and who do and do not have additional symptoms of Attention-Deficit/Hyperactivity Disorder (ADHD). The second part of the study will examine the effectiveness of a range of doses of methylphenidate in improving cognitive and behavioral outcomes in children with both ASD and ADHD. Ages 7-12. Location in Houston, TX.
  • Diet and Behavior in Young Children With Autism.
    Interventional study. This study will determine whether a gluten- and casein-free diet has specific benefits for children with autism. Ages 30 Months-54 Months. Location in Rochester, NY.

Search ClinicalTrials.gov for other NIH studies on Autism Spectrum Disorders (Pervasive Developmental Disorders).