SAN DIEGO--(BUSINESS WIRE)--ACADIA Pharmaceuticals Inc. (NASDAQ: ACAD), a biopharmaceutical company focused on innovative treatments that address unmet medical needs in neurological and related central nervous system disorders, announced that Jeffrey Cummings, M.D., Sc.D., Director of Cleveland Clinic Lou Ruvo Center for Brain Health, presented detailed results today from ACADIA’s pivotal Phase III -020 Study with pimavanserin in patients with Parkinson’s disease psychosis at the Emerging Science session of the 65th American Academy of Neurology (AAN) Annual Meeting. The analysis of the full data set from the Phase III -020 Study showed robust and consistent efficacy of pimavanserin across a wide array of study measures and confirmed the positive top-line results previously reported.