Overview Melatonin Effects on Sleep and Circadian Rhythm in Youth and Young Adults With At-risk Symptoms Status: Recruiting Trial end date: 2023-01-01 Target enrollment: Participant gender: Summary Randomized control trial assessing supplemental melatonin for youth with at-risk or psychotic symptoms. Phase: N/A Details Lead Sponsor: Children's Hospital of PhiladelphiaCollaborators: Brain and Behavior Research Foundation (NARSAD Young Investigator Award, Grant Number 26742)University of PennsylvaniaTreatments: Melatonin