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ClinicalTrials.gov public records Last synced May 22, 2026, 12:46 AM EDT

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 50 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Cholinergic System Clear all
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Parkinson Disease
Interventions
I-123-5-IA85380
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced May 22, 2026, 12:46 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Lewy Body Disease, Lewy Body Variant of Alzheimer Disease, Lewy Body Dementia With Behavioral Disturbance
Interventions
HD-tDCS
Device
Lead sponsor
University of Michigan
Other
Eligibility
50 Years to 90 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 21, 2025 · Synced May 22, 2026, 12:46 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Donepezil, Vitamin E
Drug
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
55 Years to 90 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2004
U.S. locations
63
States / cities
Phoenix, Arizona • Tucson, Arizona • Irvine, California + 53 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2009 · Synced May 22, 2026, 12:46 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Parkinson Disease, Progressive Supranuclear Palsy
Interventions
(18)F]fluoroethoxybenzovesamicol ([(18)F (FEOBV) PET, Dihydrotetrabenazine (DTBZ) PET
Radiation
Lead sponsor
University of Michigan
Other
Eligibility
21 Years and older
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 29, 2025 · Synced May 22, 2026, 12:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Psoriatic Arthritis, Rheumatoid Arthritis, Ankylosing Spondylitis
Interventions
Ultrasound Stimulation, Non-active ultrasound stimulation
Device
Lead sponsor
Surf Therapeutics
Industry
Eligibility
22 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
2
States / cities
Austin, Texas • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced May 22, 2026, 12:46 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Sjogren's Syndrome, Dysautonomia
Interventions
Not listed
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced May 22, 2026, 12:46 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Parkinson Disease
Interventions
Donepezil (Aricept)
Drug
Lead sponsor
University of Virginia
Other
Eligibility
40 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 8, 2026 · Synced May 22, 2026, 12:46 AM EDT
Recruiting Phase 2 Interventional
View directory record Official record
Conditions
Psychosis Associated With Alzheimer's Disease
Interventions
ML-007C-MA, Placebo
Drug
Lead sponsor
MapLight Therapeutics
Industry
Eligibility
55 Years to 90 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
27
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Tucson, Arizona + 20 more
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced May 22, 2026, 12:46 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
50 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 16, 2017 · Synced May 22, 2026, 12:46 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Donepezil
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
30 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 13, 2019 · Synced May 22, 2026, 12:46 AM EDT
Enrolling by invitation Not applicable Interventional
View directory record Official record
Conditions
Alzheimer Disease, Early Onset, Dementia, Alzheimer Disease
Interventions
Device Implantation- Boston Scientific, VERCISE GENUS™ system, DBS Stimulation - Boston Scientific, VERCISE GENUS™ system
Procedure · Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
60 Years to 80 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced May 22, 2026, 12:46 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
50 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 28, 2017 · Synced May 22, 2026, 12:46 AM EDT
Completed Early Phase 1 Interventional Results available
View directory record Official record
Conditions
Asthma, Depression, Childhood Asthma
Interventions
Ipratropium Bromide
Drug
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
7 Years to 17 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced May 22, 2026, 12:46 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Postmenopausal Symptoms, Aging, Alzheimer Disease
Interventions
Cholinergic antagonist
Drug
Lead sponsor
University of Vermont
Other
Eligibility
50 Years to 70 Years · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
2
States / cities
Nashville, Tennessee • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced May 22, 2026, 12:46 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
HIV-1-infection, Aging, Premature, Cognitive Impairment, Memory Impairment, HIV-Associated Cognitive Motor Complex
Interventions
Scopolamine Injectable Product, Mecamylamine Pill
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
35 Years and older
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 24, 2019 · Synced May 22, 2026, 12:46 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
50 Years to 99 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 1, 2021 · Synced May 22, 2026, 12:46 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Atropine Bioequivalence
Interventions
Atropine Sulfate Ophthalmic Solution USP, 1%, Atropine Sulfate Injection, USP 8 mg/20 mL (0.4 mg/mL)
Drug
Lead sponsor
Biomedical Advanced Research and Development Authority
Federal
Eligibility
18 Years to 65 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced May 22, 2026, 12:46 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Juvenile Idiopathic Arthritis (JIA)
Interventions
Active tcVNS, Sham tcVNS
Device
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
5 Years to 18 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
7
States / cities
San Francisco, California • Orlando, Florida • Indianapolis, Indiana + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 24, 2025 · Synced May 22, 2026, 12:46 AM EDT
Not yet recruiting Early Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Epilepsy, Seizures, Cognitive Impairment, Mild, Memory Disorder, Memory Loss
Interventions
COBENFY KarXT (50/20 mg), Placebo
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2031
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced May 22, 2026, 12:46 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Visual Perception, Attention, Information Processing, Cholinergic System
Interventions
Donepzil, Placebo oral tablet
Drug
Lead sponsor
University of California, Berkeley
Other
Eligibility
18 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Aug 11, 2021 · Synced May 22, 2026, 12:46 AM EDT
Terminated No phase listed Observational
View directory record Official record
Conditions
Posttraumatic Stress Disorder, Pseudopheochromocytoma, Healthy Volunteers, Neurocardiogenic Syncope, Postural Tachycardia Syndrome
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
2 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 7, 2021 · Synced May 22, 2026, 12:46 AM EDT
Recruiting Phase 2 Interventional
View directory record Official record
Conditions
Schizophrenia
Interventions
ML-007C-MA
Drug
Lead sponsor
MapLight Therapeutics
Industry
Eligibility
18 Years to 65 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
5
States / cities
Lemon Grove, California • Miami Lakes, Florida • Chicago, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced May 22, 2026, 12:46 AM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Chronic Inducible Urticaria
Interventions
Ligelizumab, Placebo
Drug · Other
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
12 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
4
States / cities
Evansville, Indiana • North Charleston, South Carolina • El Paso, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 17, 2024 · Synced May 22, 2026, 12:46 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Cervical Dystonia, Dystonia, Movement Disorder, Focal Dystonia
Interventions
[18F]FP-TZTP
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 100 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced May 22, 2026, 12:46 AM EDT