This is a research study to examine the tolerability and effectiveness of pregnenolone in
individuals with autism. Pregnenolone is a naturally occurring steroid hormone in the brain
that has been implicated in treating various psychiatric conditions. The investigators hope
to learn the effects and safety of using pregnenolone in reducing irritability and
sensitivity to sensory differences and improving social communication in individuals with
autism. The investigators hope by studying the effects of pregnenolone in more detail, the
investigators can design better ways to treat individuals with autism.