- Conditions
- Parkinson Disease
- Interventions
- Not listed
- Lead sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
- NIH
- Eligibility
- 21 Years and older
- Enrollment
- 133 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2002 – 2009
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
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
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
These describe how studies tend to be titled and grouped on ClinicalTrials.gov — they are search vocabulary, not medical guidance.
Showing 181–192 of 256 matching trials for Parkinson's Disease.
Live ClinicalTrials.gov results.
Live official records
Open in full search- Conditions
- Parkinson Disease
- Interventions
- Intravenous Levodopa, Lisuride Transdermal System
- Drug
- Lead sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
- NIH
- Eligibility
- 40 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, 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
- Not listed
- Lead sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
- NIH
- Eligibility
- 18 Years and older
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2008
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Parkinson's Disease
- Interventions
- capsules containing: carbidopa (25 mg), levodopa (100 mg), entacapone (200 mg)
- Drug
- Lead sponsor
- Novartis
- Industry
- Eligibility
- 30 Years to 80 Years
- Enrollment
- 493 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2005 – 2007
- U.S. locations
- 17
- States / cities
- Phoenix, Arizona • La Jolla, California • Reseda, California + 13 more
- Conditions
- Parkinson's Disease With End of Dose Wearing Off
- Interventions
- Carbidopa/levodopa/entacapone
- Drug
- Lead sponsor
- Novartis Pharmaceuticals
- Industry
- Eligibility
- 30 Years to 85 Years
- Enrollment
- 359 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2005 – 2008
- U.S. locations
- 41
- States / cities
- Phoenix, Arizona • Fullerton, California • Irvine, California + 38 more
- Conditions
- Parkinson's Disease
- Interventions
- PF-06649751
- Drug
- Lead sponsor
- Pfizer
- Industry
- Eligibility
- 30 Years to 80 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2016
- U.S. locations
- 16
- States / cities
- Fountain Valley, California • Long Beach, California • Englewood, Colorado + 10 more
- Conditions
- Parkinson Disease
- Interventions
- Ropinirole
- Drug
- Lead sponsor
- GlaxoSmithKline
- Industry
- Eligibility
- 30 Years and older
- Enrollment
- 393 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2004
- U.S. locations
- 28
- States / cities
- Birmingham, Alabama • Northridge, California • San Francisco, California + 24 more
- Conditions
- Parkinson's Disease, Levodopa
- Interventions
- Erythromycin, placebo
- Drug
- Lead sponsor
- Virginia Commonwealth University
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 18 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2015
- U.S. locations
- 1
- States / cities
- Richmond, Virginia
- Conditions
- Parkinson's Disease
- Interventions
- CVT-301, LIP, Placebo
- Drug · Other
- Lead sponsor
- Acorda Therapeutics
- Industry
- Eligibility
- 30 Years to 85 Years
- Enrollment
- 36 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016
- U.S. locations
- 11
- States / cities
- Fountain Valley, California • Boca Raton, Florida • Hallandale, Florida + 8 more
- Conditions
- Parkinson's Disease, Dyskinesia
- Interventions
- Sarizotan HCl
- Drug
- Lead sponsor
- EMD Serono
- Industry
- Eligibility
- 30 Years and older
- Enrollment
- 360 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2002 – 2003
- U.S. locations
- 17
- States / cities
- Fountain Valley, California • Sunnyvale, California • Miami, Florida + 14 more
- Conditions
- Parkinson's Disease, Parkinson Disease, Dyskinesias
- Interventions
- ropinirole controlled-release (REQUIP CR) for RLS
- Drug
- Lead sponsor
- GlaxoSmithKline
- Industry
- Eligibility
- 30 Years to 70 Years
- Enrollment
- 209 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2006
- U.S. locations
- 69
- States / cities
- Anniston, Alabama • Birmingham, Alabama • Phoenix, Arizona + 61 more
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.