- Conditions
- Parkinson's Disease Psychosis
- Interventions
- Pimavanserin, Quetiapine
- Drug
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 40 Years and older
- Enrollment
- 358 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2028
- U.S. locations
- 24
- States / cities
- Tucson, Arizona • Loma Linda, California • Palo Alto, California + 20 more
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 1–24
of 38
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Adjunctive Treatment of Major Depressive Disorder
- Interventions
- Pimavanserin, Placebo
- Drug
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 298 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2020
- U.S. locations
- 41
- States / cities
- Birmingham, Alabama • Garden Grove, California • Glendale, California + 34 more
- Conditions
- Schizophrenia
- Interventions
- Pimavanserin
- Drug
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 995 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2024
- U.S. locations
- 32
- States / cities
- Phoenix, Arizona • Little Rock, Arkansas • Rogers, Arkansas + 27 more
- Conditions
- Parkinson's Disease
- Interventions
- Pimavanserin, Placebo, Quetiapine
- Drug · Other
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 50 Years to 85 Years
- Enrollment
- 11 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2020
- U.S. locations
- 16
- States / cities
- Scottsdale, Arizona • Tucson, Arizona • Sacramento, California + 13 more
- Conditions
- Autism Spectrum Disorder
- Interventions
- Pimavanserin Tartrate 34 Mg ORAL CAPSULE [NUPLAZID], Placebo
- Drug
- Lead sponsor
- New York State Psychiatric Institute
- Other
- Eligibility
- 12 Years to 40 Years
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2026
- U.S. locations
- 2
- States / cities
- Lawrence, Kansas • White Plains, New York
- Conditions
- Neurodegenerative Diseases, Parkinson Disease, Parkinson Disease Psychosis
- Interventions
- Pimavanserin
- Drug
- Lead sponsor
- Vanderbilt University Medical Center
- Other
- Eligibility
- 50 Years to 85 Years
- Enrollment
- 75 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2027
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- Conditions
- Major Depressive Disorder
- Interventions
- Psilocybin, Pimavanserin, Placebo
- Drug
- Lead sponsor
- Icahn School of Medicine at Mount Sinai
- Other
- Eligibility
- 21 Years to 80 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2028
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Parkinson's Disease Psychosis
- Interventions
- pimavanserin tartrate, placebo
- Drug
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 40 Years and older
- Enrollment
- 199 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2012
- U.S. locations
- 62
- States / cities
- Gilbert, Arizona • Phoenix, Arizona • Tucson, Arizona + 58 more
- Conditions
- Parkinson's Disease Psychosis
- Interventions
- Pimavanserin tartrate (ACP-103), Placebo
- Drug
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 40 Years and older
- Enrollment
- 298 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2009
- U.S. locations
- 36
- States / cities
- Gilbert, Arizona • Phoenix, Arizona • Berkeley, California + 33 more
- Conditions
- Parkinson Disease
- Interventions
- Pimavanserin
- Drug
- Lead sponsor
- State University of New York - Downstate Medical Center
- Other
- Eligibility
- 40 Years to 85 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Brooklyn, New York
- Conditions
- Parkinson Disease Psychosis
- Interventions
- Pimavanserin
- Drug
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 40 Years and older
- Enrollment
- 29 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2022
- U.S. locations
- 18
- States / cities
- Scottsdale, Arizona • Fullerton, California • Miami, Florida + 15 more
- Conditions
- Hallucinations, Psychoses, Parkinson's Disease
- Interventions
- ACP-103
- Drug
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 0 Years and older
- Enrollment
- 60 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2004 – 2005
- U.S. locations
- 13
- States / cities
- Fountain Valley, California • Sunnyvale, California • Danbury, Connecticut + 10 more
- Conditions
- Irritability Associated With Autism Spectrum Disorder
- Interventions
- Pimavanserin, Placebo
- Drug
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 5 Years to 17 Years
- Enrollment
- 237 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2024
- U.S. locations
- 18
- States / cities
- Phoenix, Arizona • Glendale, California • San Rafael, California + 15 more
- Conditions
- Schizophrenia
- Interventions
- Pimavanserin, Placebo
- Drug
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 396 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2019
- U.S. locations
- 33
- States / cities
- Phoenix, Arizona • Little Rock, Arkansas • Rogers, Arkansas + 27 more
- Conditions
- Parkinson Disease Psychosis
- Interventions
- Real-world, non-interventional
- Other
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 764 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2021
- U.S. locations
- 69
- States / cities
- Cullman, Alabama • Anchorage, Alaska • Scottsdale, Arizona + 62 more
- Conditions
- Dementia-related Psychosis
- Interventions
- Placebo, Pimavanserin 34 mg, Pimavanserin 20 mg
- Drug
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 50 Years to 90 Years
- Enrollment
- 392 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2019
- U.S. locations
- 27
- States / cities
- Costa Mesa, California • Fullerton, California • Aventura, Florida + 22 more
- Conditions
- Schizophrenia
- Interventions
- ACP-103
- Drug
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 400 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2005 – 2007
- U.S. locations
- 11
- States / cities
- Cerritos, California • Garden Grove, California • Glendale, California + 7 more
- Conditions
- Intermittent Explosive Disorder
- Interventions
- Pimavanserin 34 mg, Placebo
- Drug
- Lead sponsor
- Ohio State University
- Other
- Eligibility
- 21 Years to 55 Years
- Enrollment
- 35 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2028
- U.S. locations
- 1
- States / cities
- Columbus, Ohio
- Conditions
- Tourette Syndrome, Tardive Dyskinesia
- Interventions
- Pimavanserin
- Drug
- Lead sponsor
- Joseph Jankovic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2021
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Parkinson's Disease Psychosis, Dementia With Lewy Bodies
- Interventions
- Pimavanserin, Quetiapine
- Drug
- Lead sponsor
- The University of Texas Health Science Center at San Antonio
- Other
- Eligibility
- Not listed
- Enrollment
- 94 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2027
- U.S. locations
- 2
- States / cities
- San Antonio, Texas
- Conditions
- Insomnia Chronic, Posttraumatic Stress Disorder
- Interventions
- Pimavanserin
- Drug
- Lead sponsor
- Baylor College of Medicine
- Other
- Eligibility
- 18 Years to 64 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Adjunctive Treatment of Major Depressive Disorder
- Interventions
- Pimavanserin
- Drug
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 235 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2021
- U.S. locations
- 33
- States / cities
- Garden Grove, California • Glendale, California • Irvine, California + 26 more
- Conditions
- Post-traumatic Stress Disorder, Insomnia
- Interventions
- Pimavanserin
- Drug
- Lead sponsor
- Baylor College of Medicine
- Other
- Eligibility
- 18 Years to 64 Years
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Agitation and Aggression in Alzheimer's Disease
- Interventions
- Pimavanserin 34 mg, Pimavanserin 20 mg, Placebo
- Drug · Other
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 50 Years and older
- Enrollment
- 111 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2018
- U.S. locations
- 33
- States / cities
- Costa Mesa, California • Fresno, California • Fullerton, California + 30 more