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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03325556
Other study ID # ACP-103-045
Secondary ID 2017-002227-13
Status Completed
Phase Phase 3
First received
Last updated
Start date September 27, 2017
Est. completion date October 30, 2019

Study information

Verified date May 2021
Source ACADIA Pharmaceuticals Inc.
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to evaluate the efficacy of pimavanserin compared to placebo in preventing relapse of psychotic symptoms in subjects with dementia-related psychosis who responded to 12 weeks of open label pimavanserin treatment.


Recruitment information / eligibility

Status Completed
Enrollment 392
Est. completion date October 30, 2019
Est. primary completion date July 31, 2019
Accepts healthy volunteers No
Gender All
Age group 50 Years to 90 Years
Eligibility Inclusion Criteria: 1. Meets criteria for All-cause Dementia according to NIA-AA guidelines 2. Meets clinical criteria for one of the following disorders: Dementia associated with Parkinson's disease, Dementia with Lewy bodies, Possible or probable Alzheimer's disease, Frontotemporal degeneration spectrum disorders, Vascular dementia 3. Has an MMSE score =6 and =24 4. Has had psychotic symptoms for at least 2 months 5. Must be on a stable does of cholinesterase inhibitor or memantine, if applicable 6. If the subject is female, she must not be pregnant or breastfeeding. She must also be of non-childbearing potential or must agree to use a clinically acceptable method of contraception for the duration of the study Exclusion Criteria: 1. Has psychotic symptoms that are primarily attributable to a condition other than dementia 2. Has had a recent major depressive episode 3. Has experienced suicidal ideation or behavior within 3 months prior to study enrollment 4. Has evidence of a non-neurologic medical comorbidity or medication use that could substantially impair cognition 5. Has a history of ischemic stroke within the last 12 months or any evidence of hemorrhagic stroke 6. Has a known history of cerebral amyloid angiopathy (CAA), epilepsy, CNS neoplasm, or unexplained syncope 7. Has any of the following: greater than New York Heart Association (NYHA) Class 2 congestive heart failure, Grade 2 or greater angina pectoris, sustained ventricular tachycardia, ventricular fibrillation, torsade de pointes, syncope due to an arrhythmia, an implantable cardiac defibrillator 8. Had a myocardial infarction within the last 6 months 9. Has a known personal or family history or symptoms of long QT syndrome 10. Has a significant unstable medical condition that could interfere with subject's ability to complete the study or comply with study procedures 11. Requires treatment with a medication or other substance that is prohibited by the protocol Additional inclusion/exclusion criteria apply. Subjects will be evaluated at screening to ensure that all criteria for study participation are met.

Study Design


Intervention

Drug:
Placebo
Placebo, tablets, once daily by mouth
Pimavanserin 34 mg
Pimavanserin 34 mg total daily dose, tablets, once daily by mouth
Pimavanserin 20 mg
Pimavanserin 20 mg total daily dose, tablets, once daily by mouth

Locations

Country Name City State
Bulgaria Mental Health Center - Ruse EOOD Russe
Chile Psicomed Estudios Medicos Antofagasta
Chile Biomedica Research Group Santiago
Chile Especialidades Médicas L y S Santiago
Czechia Fakultni nemocnice Hradec Kralove Hradec Králové
Czechia AD71, s.r.o. Praha 10
Czechia Clintrial s.r.o. Praha 10
Czechia Vestra Clinics, s.r.o Rychnov nad Knežnou
France Assistance Publique Hopitaux de Marseille (AP-HM) - Hopital de La Timone - Service de Neurologie et Pathologie du Mouvement du Pr Azulay Marseille
France Centre de Recherche du Gerontopole - CHU de Toulouse Toulouse
Germany Klinik für Psychiatrie und Psychotherapie der Universität Tübingen Tuebingen
Italy Azienda Ospedaliera di Padova Clinica Neurologica Padova
Italy IRCCS Fondazione Santa Lucia, Dipartimento di Neurologia e Psichiatria Rome
Italy IRCCS San Raffaele Pisanna Rome
Italy Universita degli Studi di ROMA "La Sapienza" Dipartimento di NEUROLOGIA E PSICHIATRIA Rome
Italy Azienda Ospedaliero-Universitaria Citta della Salute a della Scienza di Torino - c/o Presidio Ospedaliero Molinette Clinica Neurologica I Torino
Poland Przychodnia Sródmiescie Sp. z o.o. Bydgoszcz
Poland ISPL Wieslaw Jerzy Cubala Gdansk
Poland Care Clinic Katowice
Poland Specjalistyczna Praktyka Lekarska Lublin
Poland NZOZ Neuro-Kard Ilkowski i Partnerzy Spólka Partnerska Lekarzy Poznan
Poland NEURO-CARE Sp. z o.o. Sp. Komandytowa Siemianowice Slaskie
Poland Euromedis Sp z. o. o. Szczecin
Poland Centrum Medyczne NeuroProtect Warszawa
Serbia Clinical center of Serbia, Clinic for Neurology Belgrade
Serbia Clinical Hospital Center Dr Dragisa Misovic-Dedinje Belgrade
Serbia Institut of Mental Health Belgrade
Serbia Military Medical Academy, Clinic for Neurology Belgrade
Serbia Psychiatric Clinic, Military Medical Academy Belgrade
Serbia Clinic for Psychiatry, Clinical Center Kragujevac Kragujevac
Serbia Department of addictive disorders of the Clinic for Psychiatry, Clinical center Kragujevac Kragujevac
Serbia Clinic for Psychiatry Nis
Slovakia MUDr. Beata Dupejova, neurologicka ambulancia s.r.o Banska Bystrica
Slovakia Epamed s.r.o., Psychiatricka ambulancia Košice
Slovakia NEURES s.r.o. neurologicka ambulancia Krompachy
Slovakia Centrum Zdravia R.B.K., s.r.o. Svidnik
Slovakia Crystal Comfort, s.r.o. Vranov nad Toplou
Spain Clinica IINA Barcelona
Spain Hospital Universitari Vall d'Hebron Barcelona
Spain Hospital General de Cataluña Sant Cugat Del Vallès
Spain Estudio de Psiquiatría Sevilla
Spain Hospital Universitario Virgen del Rocío Sevilla
Ukraine Communal Institution "Dnipropetrovsk Regional Clinical Hospital n.a. I. I. Mechnikov" Dnipro
Ukraine Municipal Institution of Health Care "Kharkiv Regional Clinical Psychiatric Hospital #3" Kharkiv
Ukraine State Institution "Institute of Neurology, Psychiatry, and Narcology of the National Academy of Medical Sciences of Ukraine", Department of Clinical, Social, and Paediatric Psychiatry Kharkiv
Ukraine Kherson Regional Psychiatric Hospital Kherson
Ukraine Lviv Regional State Clinical Psychiatric Hospital Lviv
Ukraine Municipal Institution "Odesa Regional Medical Center of Mental Health", Department #18 Odesa
Ukraine Municipal Institution "Odesa Regional Psychiatric Hospital #2", Female Gerontological Department # 5, Male Gerontological Department #1 Oleksandrivka Odessa Region
Ukraine Poltava Regional Clinical Psychiatric Hospital named after O.F. Maltsev Poltava
Ukraine Municipal Institution "Vinnytsya Regional Psychoneurological Hospital n.a. Acad. O.I.Yushchenko", Male Department #14, Female Department #15, Vinnytsya National Medical University n.a. M.I.Pyrogov, Department of Psychiatry, Narcology and Psychotherapeutic Vinnytsya
Ukraine Municipal Institution "Zaporizhzhya Regional Clinical Hospital of Zaporizhzhya Regional Council" Zaporizhzhya
United Kingdom Royal United Hospital - The Research Institute for the Care of Older People (RICE) Centre Bath
United Kingdom MAC Clinical Research - Blackpool Blackpool
United Kingdom Re:Cognition Health Ltd. London
United Kingdom MAC Clinical Research - Manchester Manchester
United States Neurological Associates of Albany, PC Albany New York
United States Visionary Investigators Network (Aventura Neurologic Associates) Aventura Florida
United States Parkinson's Disease and Movement Disorders Center of Boca Raton Boca Raton Florida
United States University of Virginia Adult Neurology Charlottesville Virginia
United States Clinical Research Professionals Chesterfield Missouri
United States ATP Clinical Research Inc. Costa Mesa California
United States Memory Enhancement Center of America, Inc. Eatontown New Jersey
United States Neurology Center of North Orange County Fullerton California
United States University of Kansas Medical Center Research Institute, Inc. Kansas City Kansas
United States University of Tennessee Medical Center Knoxville Tennessee
United States Neurology Center of Las Vegas Las Vegas Nevada
United States Novel Clinical Research Center, LLC Miami Florida
United States Premier Clinical Research Institute, Inc. Miami Florida
United States Visionary Investigators Network (First Choice Neurology Group) Miami Florida
United States Collier Neurologic Specialists LLC Naples Florida
United States Manhattan Behavioral Medicine, PLLC New York New York
United States Neuro-Behavioral Clinical Research, Inc. North Canton Ohio
United States Bioclinica Research Orlando Florida
United States Neurology Associates of Ormond Beach Ormond Beach Florida
United States Thomas Jefferson University Philadelphia Pennsylvania
United States Quantum Laboratories Pompano Beach Florida
United States Alzheimer Disease Center Quincy Massachusetts
United States Millennium Psychiatric Associates, LLC; DBA Millennium Center for Clinical Research Saint Louis Missouri
United States Richmond Behavioral Associates Staten Island New York
United States BioBehavioral Health Toms River New Jersey
United States Abington Neurological Associates Ltd. Willow Grove Pennsylvania
United States Neuroscience Research Institute Winfield Illinois

Sponsors (1)

Lead Sponsor Collaborator
ACADIA Pharmaceuticals Inc.

Countries where clinical trial is conducted

United States,  Bulgaria,  Chile,  Czechia,  France,  Germany,  Italy,  Poland,  Serbia,  Slovakia,  Spain,  Ukraine,  United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Primary Time From Randomization to Relapse in the Double-blind (DB) Period The time from randomization to relapse in the DB period was compared between treatment groups using a Cox regression model. The treatment effect was measured by the hazard ratio (HR).
Relapse was defined as (1) =30% increase in SAPS-H+D total score from DB baseline (BL) and CGI-I score =6 relative to DB BL, (2) treatment with antipsychotic for dementia-related delusions/hallucinations, (3) treatment/study discontinuation due to lack of efficacy, and/or (4) hospitalization for worsening dementia-related psychosis.
SAPS-H+D is a 20-item scale; the total score is the sum of the 20 item scores (range 0-100); higher scores denote more severe symptoms. CGI-I is a clinician-rated 7-point scale to rate improvement in hallucinations/delusions relative to BL (range 1-7); higher scores denote less improvement or worsening.
A pre-specified IA was conducted after accrual of 40 adjudicated relapse events. The prespecified stopping criterion was met; the study was stopped for efficacy.
From randomization in the DB period through 26 weeks
Secondary Time From Randomization to Discontinuation From the DB Period for Any Reason The endpoint of time from randomization to discontinuation from the DB period for any reason (other than termination of the study by the sponsor) was compared between treatment groups using a Cox regression model. The treatment effect was measured by the HR. From randomization in the DB period through 26 weeks