Overview Pimavanserin for Insomnia in Veterans With Posttraumatic Stress Disorder: Proof of Concept Status: Not yet recruiting Trial end date: 2022-09-15 Target enrollment: Participant gender: Summary This is a proof-of-concept, open-label trial of pimavanserin 34mg at bedtime for 6 weeks in Veterans with insomnia and Posttraumatic Stress Disorder. Phase: Phase 4 Details Lead Sponsor: Baylor College of MedicineCollaborator: ACADIA Pharmaceuticals Inc.Treatments: Pimavanserin