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Terminated Phase 3 Interventional Results available

Extension Study of Pimavanserin for the Adjunctive Treatment of Schizophrenia

ClinicalTrials.gov ID: NCT03121586

Public ClinicalTrials.gov record NCT03121586. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 1, 2026, 10:41 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A 52-Week, Open-Label, Extension Study of Pimavanserin for the Adjunctive Treatment of Schizophrenia

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

To evaluate the long-term safety and tolerability of pimavanserin after 52 weeks of adjunctive treatment in subjects with schizophrenia

Study identification

NCT ID
NCT03121586
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 3
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Enrollment
995 participants

Conditions and interventions

Conditions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 31, 2016
Primary completion
Apr 29, 2024
Completion
May 29, 2024
Last update posted
Aug 23, 2025

2017 – 2024

United States locations

U.S. sites
32
U.S. states
16
U.S. cities
30
Facility City State ZIP Site status
171-Alea Research Institute Phoenix Arizona 85012
156-Woodland International Research Group, LLC Little Rock Arkansas 72211
111-Woodland Research Northwest, LLC Rogers Arkansas 72758
167-CITrials - Bellflower Bellflower California 90706
105-ProScience Research Group Culver City California 90230
123-Synergy San Diego Lemon Grove California 91945
164-Artemis Institute for Clinical Research San Diego California 92103
165-CITrials Santa Ana California 92705
108-Collaborative Nueroscience Network, LLC Torrance California 90502
125-Galiz Research Hialeah Florida 33016
137-Innovative Clinical Research, Inc. Lauderhill Florida 33319
146-Premier Clinical Research Institute, Inc. Miami Florida 33122
162-Synexus Clinical Research, Inc. Atlanta Georgia 30328
168-Atlanta Center for Medical Research Atlanta Georgia 30331
102-Northwest Behavioral Research Center Marietta Georgia 30060
114-Northwestern University Chicago Illinois 60611
101-American Medical Research Chicago Illinois 60612
130-Alexian Brothers Center for Psychiatric Research Hoffman Estates Illinois 60169
118-Lake Charles Clinical Trials Lake Charles Louisiana 70629
124-Altea Research Institute Las Vegas Nevada 89102
141-Hassman Research Institute Berlin New Jersey 08009
153-Albuquerque Neuroscience Inc. Albuquerque New Mexico 87109
104-Neurobehavioral Research, Inc. Cedarhurst New York 11516
140-Synexus Clinical Research, Inc - 140 Jamaica New York 11432
128-Finger Lakes Clinical Research Rochester New York 14618
106-New Hope Clinical Research Charlotte North Carolina 28211
145-Carolina Behavioral Care Durham North Carolina 27704
110-Cutting Edge Research Group Oklahoma City Oklahoma 73116
170-Suburban Research Associates Downingtown Pennsylvania 19335
127-University Hills Clinical Research Irving Texas 75062
103-Pillar Clinical Research, LLC Richardson Texas 75080
115-Psychiatric and Behavioral Solutions LLC Salt Lake City Utah 84105

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 129 non-U.S. sites.

Recently updated Schizophrenia trials

Other public records listing Schizophrenia. Sorted by last update posted; newest first. Not a recommendation.

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About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03121586, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Aug 23, 2025 · Synced Sep 1, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03121586 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →