Overview A Study to Assess the Pharmacodynamic Effects of SAGE-217 in Healthy Adults Using an Insomnia Model Status: Completed Trial end date: 2017-12-18 Target enrollment: Participant gender: Summary This study will assess the pharmacodynamic effects of SAGE-217 in approximately 42 healthy adult subjects using an insomnia model. Phase: Phase 1 Details Lead Sponsor: Sage Therapeutics