Overview Evaluating the Effects of Tasimelteon vs Placebo on Sleep Disturbances in SMS Status: Unknown status Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary The aim of this study is to investigate tasimelteon vs. placebo on sleep disturbances of individuals with Smith-Magenis Syndrome. Phase: Phase 2/Phase 3 Details Lead Sponsor: Vanda Pharmaceuticals