Study to Evaluate Safety and Daytime Sedation in Subjects With Parkinson's Disease With Neuropsychiatric Symptoms Treated With Pimavanserin or Low-Dose Quetiapine
Public ClinicalTrials.gov record NCT04164758. 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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Pilot Randomized, Double-blind, Placebo-controlled Study to Evaluate Safety and Daytime Sedation in Subjects With Parkinson's Disease With Neuropsychiatric Symptoms Treated With Pimavanserin or Low-Dose Quetiapine
Study identification
- NCT ID
- NCT04164758
- Recruitment status
- Terminated
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Enrollment
- 11 participants
Conditions and interventions
Conditions
Interventions
- Pimavanserin Drug
- Placebo Other
- Quetiapine Drug
Drug · Other
Eligibility (public fields only)
- Age range
- 50 Years to 85 Years
- 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
- Oct 22, 2019
- Primary completion
- Sep 24, 2020
- Completion
- Sep 24, 2020
- Last update posted
- Oct 13, 2021
2019 – 2020
United States locations
- U.S. sites
- 16
- U.S. states
- 11
- U.S. cities
- 16
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Movement Disorders Center of Arizona | Scottsdale | Arizona | 85258 | — |
| Tucson Neuroscience Research | Tucson | Arizona | 85710 | — |
| Sutter Institute for Medical Research | Sacramento | California | 95816 | — |
| Galiz Research | Hialeah | Florida | 30016 | — |
| Charter Research, LLC | Lady Lake | Florida | 32159 | — |
| Premier Clinical Research Institute, Inc. | Miami | Florida | 33122 | — |
| Infinity Clinical Research, LLC | Sunrise | Florida | 33351 | — |
| Charter Research, LLC | Winter Park | Florida | 32792 | — |
| Meridian Clinical Research | Savannah | Georgia | 31406 | — |
| Hawaii Pacific Neuroscience, LLC. | Honolulu | Hawaii | 96817 | — |
| University of lowa Hospital and Clinics | Iowa City | Iowa | 52242 | — |
| SRI International | Plymouth | Michigan | 48170 | — |
| Bio Behavioral Health | Toms River | New Jersey | 08755 | — |
| M3 Wake Research, Inc. | Raleigh | North Carolina | 27612 | — |
| Dayton Center for Neurological Disorders | Centerville | Ohio | 45459 | — |
| Prisma Health-Upstate | Greenville | South Carolina | 29615 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04164758, 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 Oct 13, 2021 · Synced Jun 25, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04164758 live on ClinicalTrials.gov.