Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Condition Directory

Parkinson's Disease clinical trials

Directory of U.S. ClinicalTrials.gov public records for Parkinson's Disease. Browse Parkinson's Disease recruiting trials, filter by phase, sponsor, location, or intervention, and open the official ClinicalTrials.gov study record for each result.

By Clinical Trials Finder Guidance last reviewed June 10, 2026 Data synced October 15, 2026 Report an issue

ClinicalTrials.gov public records Last synced Oct 15, 2026, 5:38 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official matching trials
256
Shown on this page
12
Current sort
Recently updated
Condition scope
Parkinson's Disease
Additional filters apply within this condition.

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

How Parkinson's Disease studies are organized in the registry

Records generally use the registry spelling “Parkinson disease.” The portfolio mixes drug studies with a high share of device, exercise, and rehabilitation research, so the study-type filter is unusually useful here. Disease-stage language (“early,” “advanced,” “levodopa-treated”) commonly appears in titles.

Terms that often appear in related listings
early Parkinson deep brain stimulation levodopa gait

These describe how studies tend to be titled and grouped on ClinicalTrials.gov — they are search vocabulary, not medical guidance.

Filter and sort this condition

These controls apply only within Parkinson's Disease. Default order is Recently updated. Add location, sponsor, treatment, or recruitment status to narrow this condition page further.

Reset condition filters
Clear filters
Showing 241–252 of 256 matching trials for Parkinson's Disease.
Live ClinicalTrials.gov results.
Active filters: "levodopa" Clear condition filters
Local aggregate panels are unavailable or hidden for filtered views. The result list above identifies its data source.

Live official records

Open in full search
Completed Phase 3 Interventional

Study to Evaluate the Safety and Tolerability of Rasagiline in Advanced Parkinson's Disease Patients

NCT00203164
View directory record Official record
Conditions
Parkinson's Disease
Interventions
rasagiline mesylate
Drug
Lead sponsor
Teva Branded Pharmaceutical Products R&D, Inc.
Industry
Eligibility
30 Years and older
Enrollment
254 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2006
U.S. locations
6
States / cities
Fresno, California • Chicago, Illinois • Omaha, Nebraska + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 9, 2010 · Synced Oct 15, 2026, 5:38 PM EDT
Completed Phase 2 Interventional

Safety and Efficacy Study of Fipamezole in Treatment of Motor Dysfunctions in Parkinson's Disease

NCT00559871
View directory record Official record
Conditions
Parkinson's Disease
Interventions
fipamezole
Drug
Lead sponsor
Juvantia Pharma Ltd
Industry
Eligibility
30 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
29
States / cities
Birmingham, Alabama • Northport, Alabama • Tucson, Arizona + 25 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2009 · Synced Oct 15, 2026, 5:38 PM EDT
Terminated Phase 4 Interventional

Botulinum Toxin Type A (Botox) in the Management of Levodopa-Induced Peak-Dose Dyskinesias in Parkinson's Disease

NCT00477802
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 16, 2009 · Synced Oct 15, 2026, 5:38 PM EDT
Completed Phase 1 Interventional

Effects of a Dopamine Agonist on Pharmacodynamics of Levodopa in Parkinson's Disease

NCT00666653
View directory record Official record
Conditions
Parkinson's Disease
Interventions
pramipexole
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
30 Years to 80 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 25, 2008 · Synced Oct 15, 2026, 5:38 PM EDT
Completed Phase 2 Interventional

JP-1730 to Treat Parkinson's Disease

NCT00040209
View directory record Official record
Conditions
Parkinson Disease
Interventions
JP 1730, IV Levodopa, IV Apomorphine
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 15, 2026, 5:38 PM EDT
Completed Phase 2 Interventional

EMD 128130 for the Treatment of Parkinson's Disease

NCT00009048
View directory record Official record
Conditions
Parkinson's Disease
Interventions
EMD 128130, IV Levodopa
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 15, 2026, 5:38 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Stimulus Rate on Cognitive and Motor Activity in Young Subjects, Elderly Subjects, and Patients With Parkinson's Disease

NCT00026598
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 15, 2026, 5:38 PM EDT
Completed No phase listed Observational

Intravenous Levodopa for the Diagnosis of Parkinson's Disease

NCT00001928
View directory record Official record
Conditions
Parkinson Disease
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 15, 2026, 5:38 PM EDT
Completed Phase 2 Interventional

KW-6002 to Treat Parkinson's Disease

NCT00006337
View directory record Official record
Conditions
Parkinson's Disease
Interventions
KW-6002, IV Levodopa
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 15, 2026, 5:38 PM EDT
Completed Phase 2 Interventional

Talampanel to Treat Parkinson's Disease

NCT00108667
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 15, 2026, 5:38 PM EDT
Completed Phase 2 Interventional

Riluzole to Treat Parkinson's Disease

NCT00013624
View directory record Official record
Conditions
Parkinson's Disease
Interventions
IV Levodopa
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 15, 2026, 5:38 PM EDT
Completed Phase 2 Interventional

Treatment of Parkinson's Disease With Eliprodil

NCT00001929
View directory record Official record
Conditions
Movement Disorders, Parkinson Disease
Interventions
Eliprodil
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 15, 2026, 5:38 PM EDT

About this Parkinson's Disease clinical trials directory page

What this page lists
U.S. ClinicalTrials.gov public records that list Parkinson's Disease as a study condition, including recruiting, not yet recruiting, and active not recruiting trials across phase 1, phase 2, and phase 3.
How to narrow results
Use the filters above to scope by intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, age, or NCT ID within Parkinson's Disease.
Where the data comes from
Records are sourced from the official ClinicalTrials.gov public API. Each result links back to the official study page, which is the source of truth for eligibility, enrollment, and contact information.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, ranking of trials by quality, or AI-generated medical summaries.

Related: all condition pages, browse by drug or therapy, browse by U.S. city, browse by sponsor, or open the full search for Parkinson's Disease.