Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 7, 2026, 11:48 AM EDT

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Showing 25–45 of 45 matching trials from the live ClinicalTrials.gov search.
Conditions
Rett Syndrome
Interventions
trofinetide
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
5 Years to 21 Years · Female only
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
21
States / cities
Birmingham, Alabama • Phoenix, Arizona • La Jolla, California + 18 more
Conditions
Rett Syndrome
Interventions
Trofinetide
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
5 Years to 21 Years · Female only
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
21
States / cities
Birmingham, Alabama • Phoenix, Arizona • La Jolla, California + 18 more
Conditions
Schizophrenia
Interventions
ACP-104, Placebo
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
20 Years to 50 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
2
States / cities
Dallas, 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
Schizophrenia
Interventions
ACP-104, Placebo
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
247 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
21
States / cities
Anaheim, California • Costa Mesa, California • Covina, California + 18 more
Conditions
Rett Syndrome
Interventions
Trofinetide
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
2 Years to 5 Years · Female only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
7
States / cities
Birmingham, Alabama • Aurora, Colorado • Chicago, Illinois + 4 more
Conditions
Hyperphagia in Prader-Willi Syndrome
Interventions
Carbetocin, Placebo
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
5 Years to 30 Years
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
19
States / cities
Birmingham, Alabama • Phoenix, Arizona • Orange, California + 16 more
Conditions
Irritability Associated With Autism Spectrum Disorder
Interventions
Pimavanserin
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
5 Years to 18 Years
Enrollment
209 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
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
403 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
33
States / cities
Phoenix, Arizona • Rogers, Arkansas • Bellflower, California + 27 more
Conditions
Parkinson Disease, Parkinson Disease Psychosis, Hallucinations, Delusion
Interventions
Observation of minor phenomena
Other
Lead sponsor
University of Rochester
Other
Eligibility
30 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Rochester, New York
Conditions
Parkinson's Disease Psychosis
Interventions
pimavanserin tartrate (ACP-103)
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
Not listed
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2013
U.S. locations
1
States / cities
Danbury, Connecticut
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
Recruiting Phase 2 Interventional Accepts healthy volunteers

Pimavanserin and Aggression and Social Cognition.

NCT05895513
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
Acute Postoperative Pain, Bunionectomy
Interventions
ACP-044 Dose A, ACP-044 Dose B, Placebo
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
239 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
4
States / cities
Anaheim, California • Pasadena, Maryland • San Antonio, Texas + 1 more
Conditions
Major Depressive Disorder (MDD), Depressive Disorder, Treatment-Resistant
Interventions
ACP-211, Placebo
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
28
States / cities
Birmingham, Alabama • Chino, California • Glendale, California + 24 more
Conditions
Neuropsychiatric Symptoms Related to Neurodegenerative Disease
Interventions
Pimavanserin, Placebo
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
60 Years and older
Enrollment
784 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
21
States / cities
Gilbert, Arizona • Costa Mesa, California • Santa Ana, California + 13 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
Hyperphagia in Prader-Willi Syndrome
Interventions
Carbetocin
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
5 Years to 30 Years
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
19
States / cities
Birmingham, Alabama • Phoenix, Arizona • Orange, California + 16 more
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
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
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