- 1. Meet DSM-IV, ADI, or ADOS criteria for autism spectrum disorder. 2. Age 18-65. 3. Be seen as outpatients 4. Demonstrate capacity to provide authorized informed consent or provide consent for participation by an approved surrogate on the autistic individual’s behalf 5. Sexually active females of childbearing potential must use an acceptable method of birth control and have a negative serum pregnancy test prior to entry into the study.