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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, 1:03 AM 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.

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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.

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Showing 205–216 of 256 matching trials for Parkinson's Disease.
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Live official records

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Completed Phase 2 Interventional Results available

A Study to Explore the Safety And Tolerability of Doses of E2007 Up to a Maximum of 8 mg In Patients With Parkinson's Disease Who Experience End-of-Dose Wearing Off Motor Fluctuations

NCT00165789
View directory record Official record
Conditions
Parkinson's Disease
Interventions
E2007
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
10
States / cities
Little Rock, Arkansas • Oxnard, California • New Haven, Connecticut + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2015 · Synced Oct 15, 2026, 1:03 AM EDT
Completed Not applicable Interventional

Expectation and Response to Levodopa and Acupuncture in Parkinson's Disease

NCT00692328
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Levodopa or acupuncture
Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 80 Years
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated May 5, 2015 · Synced Oct 15, 2026, 1:03 AM EDT
Completed Not applicable Interventional Results available

The Effect of Exercise on Individuals With Parkinson's Disease

NCT00591344
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Progressive resistance training, Modified Fitness Counts
Behavioral
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
50 Years to 67 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 5, 2015 · Synced Oct 15, 2026, 1:03 AM EDT
Completed Phase 3 Interventional

SLV308 for Treatment of Patients With Parkinson's Disease Experiencing Motor Fluctuations

NCT00406588
View directory record Official record
Conditions
Advanced Stage Parkinson's Disease
Interventions
Levodopa (Pardoprunox), Placebo Comparator
Drug
Lead sponsor
Solvay Pharmaceuticals
Industry
Eligibility
30 Years and older
Enrollment
295 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
15
States / cities
Birmingham, Alabama • La Jolla, California • San Francisco, California + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2015 · Synced Oct 15, 2026, 1:03 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

The Effect of Rasagiline on Cognition in Parkinson's Disease

NCT01382342
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 5, 2015 · Synced Oct 15, 2026, 1:03 AM EDT
Completed Phase 3 Interventional Results available

Safety/Efficacy Study of Levodopa-Carbidopa Intestinal Gel in Parkinson's Subjects

NCT00360568
View directory record Official record
Conditions
Dyskinesias, Parkinson's Disease, Severe Motor Fluctuations
Interventions
Levodopa-carbidopa intestinal gel, CADD-Legacy® 1400 ambulatory infusion pump, PEG tube, J-tube
Drug · Device
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
30 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
16
States / cities
Birmingham, Alabama • Fountain Valley, California • Los Angeles, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jan 16, 2015 · Synced Oct 15, 2026, 1:03 AM EDT
Completed Phase 3 Interventional Results available

Levodopa-Carbidopa Intestinal Gel Open-Label Study in Advanced Parkinson's Disease

NCT00335153
View directory record Official record
Conditions
Advanced Parkinson's Disease
Interventions
Levodopa-carbidopa intestinal gel, CADD-Legacy® 1400 ambulatory infusion pump, PEG tube, J-tube
Drug · Device
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
30 Years and older
Enrollment
354 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
31
States / cities
Birmingham, Alabama • Fountain Valley, California • Los Angeles, California + 25 more
Source: ClinicalTrials.gov public record
Updated Jan 16, 2015 · Synced Oct 15, 2026, 1:03 AM EDT
Completed Phase 3 Interventional Results available

Study of Efficacy, Safety and Tolerability of Levodopa-Carbidopa Intestinal Gel in Levodopa-Responsive Parkinson's Subjects

NCT00660387
View directory record Official record
Conditions
Advanced Parkinson's Disease
Interventions
Levodopa carbidopa intestinal gel (LCIG), Placebo Gel, Levodopa-carbidopa (LC) oral encapsulated immediate release (IR) tablets, Placebo (PBO) oral capsules, CADD-Legacy® 1400 ambulatory infusion pump, PEG tube, J-tube
Drug · Device
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
30 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
11
States / cities
Birmingham, Alabama • Fountain Valley, California • Oceanside, California + 8 more
Source: ClinicalTrials.gov public record
Updated Jan 16, 2015 · Synced Oct 15, 2026, 1:03 AM EDT
Completed Phase 3 Interventional Results available

Study of Efficacy, Safety and Tolerability of Levodopa-Carbidopa Intestinal Gel in Levodopa-Responsive Parkinson's Subjects

NCT00357994
View directory record Official record
Conditions
Advanced Parkinson's Disease
Interventions
Levodopa carbidopa intestinal gel (LCIG), Placebo gel, Levodopa carbidopa (LC) oral encapsulated immediate release (IR) tablets, Placebo (PBO) oral capsules, CADD-Legacy® 1400 ambulatory infusion pump, PEG tube, J-tube
Drug · Device
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
30 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
8
States / cities
Los Angeles, California • Englewood, Colorado • Washington D.C., District of Columbia + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 16, 2015 · Synced Oct 15, 2026, 1:03 AM EDT
Terminated Phase 2Phase 3 Interventional

Vitamin B12 Status and Response to Vitamin B12 Supplementation in Patients With Parkinson's Disease

NCT00208611
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Vitamin B12 Supplementation
Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
21 Years and older
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 18, 2014 · Synced Oct 15, 2026, 1:03 AM EDT
Completed No phase listed Observational

Development of an Instrumented System to Measure Mobility in Parkinson's Disease

NCT01174758
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Not listed
Lead sponsor
Oregon Health and Science University
Other
Eligibility
50 Years to 80 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 3, 2014 · Synced Oct 15, 2026, 1:03 AM EDT
Completed Phase 3 Interventional Results available

Trial to Assess Parkinson's Disease (PD) Symptom Control to Four Doses of Rotigotine in a Transdermal Patch

NCT00522379
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Rotigotine, Placebo
Drug · Other
Lead sponsor
UCB Pharma
Industry
Eligibility
30 Years and older
Enrollment
514 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
62
States / cities
Birmingham, Alabama • Tuscaloosa, Alabama • Gilbert, Arizona + 59 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2014 · Synced Oct 15, 2026, 1:03 AM 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.