Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 3 Interventional Results available

A Study of the Safety and Tolerability of Pimavanserin (ACP-103) in Patients With Parkinson's Disease Psychosis

ClinicalTrials.gov ID: NCT00550238

Public ClinicalTrials.gov record NCT00550238. 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 Oct 30, 2026, 8:06 PM 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 Multi-Center, Open-Label Extension Study to Examine the Safety and Tolerability of ACP-103 in the Treatment of Psychosis in Parkinson's Disease

Brief summary

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

To assess the long-term safety and tolerability of ACP-103 in subjects with Parkinson's disease psychosis.

Study identification

NCT ID
NCT00550238
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Enrollment
459 participants

Conditions and interventions

Eligibility (public fields only)

Age range
40 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
Jul 2007 (Type not available)
Primary completion
May 30, 2018 (Actual)
Completion
May 30, 2018 (Actual)
Last update posted
Jun 24, 2019

2007 – 2018

United States locations

U.S. sites
83
U.S. states
28
U.S. cities
83
Facility City State ZIP Site status
Not listed Gilbert Arizona 85234 —
Not listed Phoenix Arizona 85013 —
Not listed Tucson Arizona 84724 —
Not listed Berkeley California 94705 —
Not listed Carson California 90746 —
Not listed Fountain Valley California 92708 —
Not listed Fresno California 93720 —
Not listed Irvine California 92697 —
Not listed La Habra California 90631 —
Not listed La Jolla California 92037 —
Not listed Laguna Hills California 92653 —
Not listed Loma Linda California 92354 —
Not listed Oxnard California 93030 —
Not listed Pasadena California 91105 —
Not listed Reseda California 91335 —
Not listed Sunnyvale California 94085 —
Not listed Ventura California 93003 —
Not listed Englewood Colorado 80113 —
Not listed Danbury Connecticut 06810 —
Not listed Fairfield Connecticut 06824 —
Not listed Farmington Connecticut 06030 —
Not listed Boca Raton Florida 33486 —
Not listed Bradenton Florida 34205 —
Not listed Deerfield Beach Florida 33064 —
Not listed Gainesville Florida 32610 —
Not listed Jacksonville Florida 32209 —
Not listed Miami Florida 33136 —
Not listed Naples Florida 34102 —
Not listed Orlando Florida 32806 —
Not listed Ormond Beach Florida 32174 —
Not listed Panama City Florida 32405 —
Not listed Pompano Beach Florida 33060 —
Not listed Port Charlotte Florida 33980 —
Not listed Sarasota Florida 34233 —
Not listed St. Petersburg Florida 33701 —
Not listed Tampa Florida 33606 —
Not listed Augusta Georgia 30912 —
Not listed Decatur Georgia 30033 —
Not listed Glenview Illinois 60026 —
Not listed Springfield Illinois 62794 —
Not listed Kansas City Kansas 66160 —
Not listed Louisville Kentucky 40202 —
Not listed Scarborough Maine 04074 —
Not listed Baltimore Maryland 21287 —
Not listed Boston Massachusetts 02215 —
Not listed Worcester Massachusetts 01655 —
Not listed Clinton Township Michigan 48037 —
Not listed Detroit Michigan 48201 —
Not listed East Lansing Michigan 48824 —
Not listed Roseville Michigan 48066 —
Not listed Traverse City Michigan 49684 —
Not listed West Bloomfield Michigan 48334 —
Not listed Columbia Missouri 65201 —
Not listed St Louis Missouri 63110 —
Not listed Missoula Montana 59802 —
Not listed Toms River New Jersey 08755 —
Not listed Albany New York 12208 —
Not listed Commack New York 11725 —
Not listed Kingston New York 12401 —
Not listed Rochester New York 14618 —
Not listed Asheville North Carolina 28806 —
Not listed Charlotte North Carolina 28204 —
Not listed Durham North Carolina 27705 —
Not listed New Bern North Carolina 28562 —
Not listed Salisbury North Carolina 28144 —
Not listed Cincinnati Ohio 45210 —
Not listed Cleveland Ohio 44195 —
Not listed Columbus Ohio 43210 —
Not listed Toledo Ohio 43614 —
Not listed Greensburg Pennsylvania 15601 —
Not listed Philadelphia Pennsylvania 19131 —
Not listed Providence Rhode Island 02906 —
Not listed Brentwood Tennessee 37027 —
Not listed Houston Texas 77030 —
Not listed Salt Lake City Utah 84108 —
Not listed Burlington Vermont 05401 —
Not listed Alexandria Virginia 22311 —
Not listed Richmond Virginia 23229 —
Not listed Roanoke Virginia 24018 —
Not listed Virginia Beach Virginia 23456 —
Not listed Kirkland Washington 98034 —
Not listed Spokane Washington 99204 —
Not listed Milwaukee Wisconsin 53233 —

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 52 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00550238, 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 Jun 24, 2019 · Synced Oct 30, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00550238 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →