Overview A Study of the Safety and Efficacy of Pimavanserin in Patients With Alzheimer's Disease Psychosis Status: Completed Trial end date: 2016-10-27 Target enrollment: Participant gender: Summary This study will evaluate the safety and efficacy of pimavanserin 40 mg compared to placebo in patients with Alzheimer's disease psychosis. Phase: Phase 2 Details Lead Sponsor: ACADIA Pharmaceuticals Inc.Treatments: Pimavanserin