Currently, there are no FDA-approved medications for the treatment of irritability associated with Autism Spectrum Disorder (ASD). This study is designed to look at the efficacy and safety of lumateperone (CAPLYTA) for the treatment of irritability associated with ASD among pediatric participants between the ages of 5 to 17 years.

It is a 6-week study, and the study drug will be compared to a placebo. Following this study, there will be an opportunity to participate in an open-label extension study where all participants will be on the active study medicine.