Study of Aripiprazole in the Treatment of Children and Adolescents With Autistic Disorder (AD).

Exclusion Criteria

• •Patients considered treatment resistant to neuroleptic medication based on lack of therapeutic response to 2 different neuroleptics after treatment of at least 3 weeks each.
• •Patients previously treated and not responding to aripiprazole treatment
• •The patient is currently diagnosed with another disorder on the autism spectrum, including PDD-NOS, Asperger's Disorder, Rett's Disorder, Fragile-X Syndrome or Childhood Disintegrative Disorder
• •Current diagnosis of bipolar disorder, psychosis, or schizophrenia, or major depression
• •A seizure in the past year
• •History of severe head trauma or stroke
• •Patients undergoing non-pharmacologic therapies (e.g., psychotherapy, behavioral modification) must have started at least 2 months prior to the initial screening visit and must remain in a consistent treatment program for the duration of the study.