Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 2, 2026, 5:52 AM EDT

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Showing 25–48 of 1,424 matching trials from the live ClinicalTrials.gov search.
Conditions
Parkinson's Disease
Interventions
Activa PC+S
Device
Lead sponsor
Vibhor Krishna
Other
Eligibility
22 Years to 90 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
PARKINSON DISEASE (Disorder)
Interventions
aDBS-Extended (Medtronic Percept™), aDBS-Standard (Medtronic Percept™), Continuous DBS (cDBS) - Active Control (Medtronic Percept™)
Device
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
1
States / cities
Davis, California
Conditions
Parkinson Disease
Interventions
N-acetylcysteine capsule
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Low Blood Pressure, Parkinsons Disease
Interventions
Nicotine gum
Dietary Supplement
Lead sponsor
New York Institute of Technology
Other
Eligibility
Not listed
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Old Westbury, New York
Conditions
Parkinson Disease
Interventions
Opicapone, Carbidopa Levodopa
Drug
Lead sponsor
Neurocrine Biosciences
Industry
Eligibility
18 Years to 85 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
3
States / cities
Glendale, California • Long Beach, California • Farmington Hills, Michigan
Conditions
Parkinson Disease
Interventions
apomorphine HCl injection
Drug
Lead sponsor
Mylan Bertek Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2005
U.S. locations
1
States / cities
Morgantown, West Virginia
Conditions
Parkinson Disease, Prodromal Stage, Neurodegenerative Diseases, Basal Ganglia Diseases, Central Nervous System Diseases, Synucleinopathies, Nervous System Diseases, Cerebral Disorder, Brain Diseases, Parkinsonian Disorders, Genetic Predisposition
Interventions
Increase of physical activity volume and intensity with the use of a motivational smartphone application
Behavioral
Lead sponsor
Radboud University Medical Center
Other
Eligibility
50 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Rochester, New York
Conditions
Parkinson Disease
Interventions
Glucose
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1998
U.S. locations
1
States / cities
Charlottesville, Virginia
Completed No phase listed Observational Accepts healthy volunteers

Development of a Face Valid Executive Functioning Task

NCT00918112
Conditions
Parkinson's Disease
Interventions
Not listed
Lead sponsor
Washington University School of Medicine
Other
Eligibility
20 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2016
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Parkinson Disease
Interventions
Cannabidiol, Placebo
Drug · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
40 Years to 85 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Aurora, Colorado
Conditions
Parkinson's Disease
Interventions
Coenzyme Q10
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
30 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2003
U.S. locations
1
States / cities
Rochester, New York
Conditions
Parkinson's Disease
Interventions
Deep Brain Stimulation surgery
Procedure
Lead sponsor
St. Joseph's Hospital and Medical Center, Phoenix
Other
Eligibility
18 Years to 85 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Phoenix, Arizona
Completed No phase listed Observational Accepts healthy volunteers

PET Scan to Study Brain Control of Human Movement

NCT00001324
Conditions
Ataxia, Cerebrovascular Accident, Healthy, Movement Disorder, Tremor
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
510 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1992 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Recruiting Not applicable Interventional

Non-invasive VNS for Parkinson's Gait

NCT06562569
Conditions
Parkinson's Disease
Interventions
non-invasive cervical vagal nerve stimulation ncVNS
Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
50 Years to 88 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Hines, Illinois
Conditions
Constipation, Parkinson's Disease
Interventions
Lubiprostone
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
50 Years to 85 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Little Rock, Arkansas
Conditions
Parkinson Disease
Interventions
CVL-751
Drug
Lead sponsor
Cerevel Therapeutics, LLC
Industry
Eligibility
45 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Long Beach, California • Atlanta, Georgia
Conditions
Parkinson Disease
Interventions
BIIB122, BIIB122-Matching Placebo
Drug
Lead sponsor
Biogen
Industry
Eligibility
30 Years to 80 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
12
States / cities
San Francisco, California • Aurora, Colorado • Englewood, Colorado + 8 more
Conditions
Parkinson Disease
Interventions
CVN424 75 mg, CVN424 150 mg, Placebo
Drug
Lead sponsor
Cerevance
Industry
Eligibility
30 Years and older
Enrollment
330 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
53
States / cities
Birmingham, Alabama • Phoenix, Arizona • Aliso Viejo, California + 41 more
Completed Phase 4 Interventional Accepts healthy volunteers

The Effect of Rasagiline on Cognition in Parkinson's Disease

NCT01382342
Conditions
Parkinson's Disease
Interventions
Rasagiline, Placebo
Drug
Lead sponsor
Brown University
Other
Eligibility
40 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Providence, Rhode Island
Completed No phase listed Observational Accepts healthy volunteers

Cell Studies of Parkinson's Disease

NCT00076505
Conditions
Parkinson Disease
Interventions
Not listed
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Parkinson's Disease
Interventions
Not listed
Lead sponsor
BlueRock Therapeutics
Industry
Eligibility
39 Years to 70 Years
Enrollment
194 participants
Timeline
2022 – 2026
U.S. locations
16
States / cities
Scottsdale, Arizona • Los Angeles, California • Orange, California + 12 more
Completed No phase listed Observational Accepts healthy volunteers

Levodopa Response and Gut Microbiome in Patients With Parkinson's Disease

NCT04956939
Conditions
Parkinson Disease
Interventions
Low dose levodopa, High dose levodopa
Drug
Lead sponsor
Rush University Medical Center
Other
Eligibility
40 Years to 80 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Parkinson Disease
Interventions
IV Levodopa, Talampanel
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Terminated No phase listed Observational Accepts healthy volunteers

Characteristics of Parkinson s Disease Associated With the LRRK-2 Gene Mutation

NCT00467090
Conditions
Parkinson Disease
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland