Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 8, 2026, 1:39 AM EDT

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Showing 1–24 of 256 matching trials from the live ClinicalTrials.gov search.
Conditions
Parkinson's Disease, Dyskinesias
Interventions
Intravenous Levodopa, ACP-103
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
30 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Parkinson's Disease
Interventions
carbidopa
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
35 Years to 85 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Portland, Oregon
Conditions
Parkinson's Disease
Interventions
Istradefylline ( KW-6002)
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
30 Years and older
Enrollment
1,100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Princeton, New Jersey
Conditions
Parkinson's Disease
Interventions
XP21279 and carbidopa (experimental), Sinemet (comparator), Placebo for XP21279 and carbidopa, Placebo for Sinemet
Drug
Lead sponsor
XenoPort, Inc.
Industry
Eligibility
30 Years to 80 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
12
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Long Beach, California + 9 more
Conditions
Parkinson's Disease
Interventions
ND0612
Drug
Lead sponsor
NeuroDerm Ltd.
Industry
Eligibility
30 Years and older
Enrollment
214 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
26
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Fountain Valley, California + 23 more
Conditions
Parkinson Disease
Interventions
Ropinirole oral product, Ropinirole Implant
Drug
Lead sponsor
Titan Pharmaceuticals
Industry
Eligibility
30 Years to 80 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
3
States / cities
Orlando, Florida • Farmington Hills, Michigan • Kirkland, Washington
Conditions
Parkinson's Disease
Interventions
Docosahexaenoic Acid (DHA), Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years to 99 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Portland, Oregon
Conditions
Parkinson's Disease
Interventions
KW-6002 (istradefylline)
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
30 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
1
States / cities
Princeton, New Jersey
Conditions
Parkinson's Disease
Interventions
perampanel, placebo
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
30 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
3
States / cities
New Haven, Connecticut • The Woodlands, Texas
Conditions
Parkinson Disease, Tremor
Interventions
Istradefylline Pill
Drug
Lead sponsor
Georgetown University
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
McLean, Virginia
Conditions
Parkinson's Disease, Erectile Dysfunction
Interventions
Selegiline, Tadalafil
Drug
Lead sponsor
University of South Florida
Other
Eligibility
40 Years to 64 Years · Male only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Tampa, Florida
Conditions
Parkinson's Disease
Interventions
Deep Brain Stimulation
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
22 Years to 75 Years
Enrollment
313 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2022
U.S. locations
22
States / cities
Phoenix, Arizona • Los Angeles, California • Sacramento, California + 18 more
Conditions
Levodopa-Induced Dyskinesia, Parkinson's Disease
Interventions
Intervention: Ketamine
Drug
Lead sponsor
University of Arizona
Other
Eligibility
30 Years to 85 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Tucson, Arizona
Conditions
Parkinson Disease
Interventions
Botulinum Toxin Type A, Placebo
Biological
Lead sponsor
University of Cincinnati
Other
Eligibility
35 Years to 75 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Cincinnati, Ohio
Conditions
Parkinson's Disease
Interventions
Levodopa
Drug
Lead sponsor
Kevin J. Black, MD
Other
Eligibility
40 Years to 79 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Parkinson Disease
Interventions
CVT-301 (Dose Level 1), CVT-301 (Dose Level 2), Sinemet®
Drug
Lead sponsor
Acorda Therapeutics
Industry
Eligibility
25 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Dallas, Texas
Conditions
Parkinson's Disease
Interventions
PARCOPA
Drug
Lead sponsor
UCB Pharma
Industry
Eligibility
18 Years and older
Timeline
2004
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Conditions
Dyskinesia, Levodopa-Induced Dyskinesia (LID), Parkinson's Disease (PD)
Interventions
ADS-5102, Placebo
Drug · Other
Lead sponsor
Adamas Pharmaceuticals, Inc.
Industry
Eligibility
30 Years to 85 Years
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
21
States / cities
Fountain Valley, California • Sunnyvale, California • Boca Raton, Florida + 18 more
Completed Early Phase 1 Interventional Accepts healthy volunteers

Sustained Release Oral Formulation for Treatment of Parkinson's Disease

NCT05471609
Conditions
Healthy Volunteers
Interventions
levodopa/carbidopa oral formulation A, levodopa/carbidopa oral formulation B
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Parkinson's Disease
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Parkinson Disease
Interventions
Donepezil, Placebo
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
50 Years to 90 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Portland, Oregon
Conditions
Parkinson Disease
Interventions
modafinil 50mg, Placebo oral capsule
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
50 Years to 90 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Little Rock, Arkansas
Conditions
Parkinsons Disease (PD)
Interventions
NE3107, Placebo
Drug
Lead sponsor
BioVie Inc.
Industry
Eligibility
45 Years to 80 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
4
States / cities
Farmington Hills, Michigan • Amherst, New York • Morrisville, North Carolina + 1 more
Conditions
Parkinson's Disease
Interventions
Prasinezumab, Placebo
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
50 Years to 85 Years
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
53
States / cities
Birmingham, Alabama • Phoenix, Arizona • Fullerton, California + 47 more