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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 3 Interventional

Rasagiline in Advanced Parkinson's Disease Patients With Motor Fluctuations Treated With Levodopa/Carbidopa Therapy.

NCT00203177
View directory record Official record
Conditions
Parkinson's Disease
Interventions
rasagiline mesylate, rasagiline mesylate 1.0 mg
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
Started 2001
U.S. locations
7
States / cities
Fresno, California • Atlanta, Georgia • Chicago, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 8, 2010 · Synced Sep 1, 2026, 10:20 PM EDT
Not listed Phase 1Phase 2 Interventional

A Study of IBRF Disorders of Consciousness Advanced Care/MultiModal Care Protocol in Severe Disorders of Consciousness

NCT02696512
View directory record Official record
Conditions
Brain Injury
Interventions
Polypharmacy using FDA-approved products, Median Nerve Stimulation (MNS), Nutraceutical Supplementation, Standard of Care
Drug · Device · Dietary Supplement + 1 more
Lead sponsor
International Brain Research Foundation
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Edison, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 1, 2016 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 3 Interventional Results available

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

NCT00660673
View directory record Official record
Conditions
Advanced Parkinson's Disease
Interventions
Levodopa-Carbidopa Intestinal Gel (LCIG), CADD-Legacy® 1400 ambulatory infusion pump, Percutaneous Endoscopic Gastrostomy with jejunal extension tube (PEG-J)
Drug · Device
Lead sponsor
AbbVie
Industry
Eligibility
30 Years to 99 Years
Enrollment
262 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2021
U.S. locations
31
States / cities
Birmingham, Alabama • Encinitas, California • Fountain Valley, California + 25 more
Source: ClinicalTrials.gov public record
Updated Dec 1, 2022 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 1 Interventional

Treatment of Orthostatic Hypotension in Autonomic Failure

NCT00223691
View directory record Official record
Conditions
Autonomic Failure, Orthostatic Hypotension
Interventions
Atomoxetine, Acarbose, Pyridostigmine Bromide, Yohimbine, Midodrine HCl, placebo, Modafinil, Octreotide, water intake, Diphenhydramine Hydrochloride, Ranitidine HCL, Tranylcypromine, Ergotamine/ Caffeine, Celecoxib, Pseudoephedrine, Methylphenidate, Indomethacin, Ibuprofen, Oxymetazoline 0.05% nasal solution, Bovril, Acetazolamide, Rivastigmine tartrate, Carbidopa/levodopa, Inflatable abdominal binder, inflatable abdominal binder (sham)
Drug · Other · Dietary Supplement + 1 more
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 85 Years
Enrollment
389 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 17, 2017 · Synced Sep 1, 2026, 10:20 PM EDT
Not listed Phase 2 Interventional

A Study of Efficacy and Safety of Eltoprazine HCl for Treating Levodopa-induced Dyskinesia in Parkinson's Disease Patients

NCT02439125
View directory record Official record
Conditions
Parkinson's Disease, Dyskinesia
Interventions
Eltoprazine HCl, Placebo
Drug
Lead sponsor
Amarantus BioScience Holdings, Inc.
Industry
Eligibility
30 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Boca Raton, Florida
Source: ClinicalTrials.gov public record
Updated Apr 21, 2016 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 1 Interventional

Sinemet for Spasticity and Function in Amyotrophic Lateral Sclerosis and Primary Lateral Sclerosis

NCT03929068
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis, Motor Neuron Disease
Interventions
carbidopa-levodopa, Placebo Oral Tablet
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 10, 2022 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 3 Interventional Results available

Efficacy, Safety, and Tolerability of E2007 in Levodopa Treated Parkinson's Disease Patients With Motor Fluctuations

NCT00368108
View directory record Official record
Conditions
Parkinson's Disease
Interventions
2 mg perampanel, 4 mg perampanel, placebo comparator
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
30 Years and older
Enrollment
752 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
99
States / cities
Birmingham, Alabama • Huntsville, Alabama • Peoria, Arizona + 82 more
Source: ClinicalTrials.gov public record
Updated May 19, 2013 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 2 Interventional

Comparison of IPX054 and Immediate-Release Carbidopa-Levodopa in Patients With Parkinson's Disease

NCT00253084
View directory record Official record
Conditions
Parkinson's Disease
Interventions
IPX054 200 mg, CD-LD IR, IPX054 Placebo, CD-LD IR Placebo
Drug
Lead sponsor
Impax Laboratories, LLC
Industry
Eligibility
30 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
2
States / cities
Chicago, Illinois • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 28, 2019 · Synced Sep 1, 2026, 10:20 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 15, 2009 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Modulating Glucose Tolerance With Dietary Tyrosine

NCT03872557
View directory record Official record
Conditions
Glucose Tolerance
Interventions
Tyrosine (TYR) Supplementation
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 4, 2021 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 2 Interventional

Sarizotan in Parkinson Patients With L-dopa-induced Dyskinesia

NCT00314288
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 22, 2017 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Early Phase 1 Interventional

A Targeted Amino Acid Supplement for People With Parkinson's Disease

NCT06954662
View directory record Official record
Conditions
Parkinson Disease, Idiopathic
Interventions
Amino acid supplement, Whey Protein Supplement, Isonitrogenous Placebo Supplement
Drug · Dietary Supplement
Lead sponsor
UConn Health
Other
Eligibility
55 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 3 Interventional

Extension Study To Evaluate Safety And Tolerability Of 24-Hour Daily Exposure Of Continuous Subcutaneous Infusion of ABBV-951 In Adult Participants With Parkinson's Disease

NCT04379050
View directory record Official record
Conditions
Parkinson's Disease (PD)
Interventions
ABBV-951
Drug
Lead sponsor
AbbVie
Industry
Eligibility
30 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
15
States / cities
Birmingham, Alabama • Sun City, Arizona • Aurora, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Sep 1, 2026, 10:20 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Cortical Electrophysiology of Response Inhibition in Parkinson's Disease

NCT06234995
View directory record Official record
Conditions
Parkinson Disease
Interventions
Levodopa, Clinical DBS Setting, Sham DBS, DBS Setting Maximizing Prefrontal Activation, DBS Setting Minimizing Prefrontal Activation
Drug · Device
Lead sponsor
Emory University
Other
Eligibility
45 Years to 75 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 4 Interventional

Istradefylline Effect Protocol on Parkinson's Disease Tremor

NCT05885360
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 12, 2025 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 1 Interventional

PF 06412562 in Subjects With Advanced Stage Parkinson's Disease

NCT03665454
View directory record Official record
Conditions
Parkinson Disease
Interventions
PF-06412562, Standard of Care Placebo
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
Not listed
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 30, 2019 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 4 Interventional Results available

Effect of L-dopa In Subacute Back Pain Population

NCT01951105
View directory record Official record
Conditions
Sub-acute Back Pain
Interventions
Naproxen, Carbidopa/Levodopa, Placebo
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 23, 2021 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 2 Interventional

Lisuride Patch to Treat Parkinson's Disease

NCT00089622
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 1, 2026, 10:20 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 3, 2008 · Synced Sep 1, 2026, 10:20 PM EDT
Withdrawn Phase 4 Interventional

Combining Robotic-Assisted Therapy and Pharmacotherapy in Post-Stroke Rehabilitation

NCT02346630
View directory record Official record
Conditions
Stroke
Interventions
Placebo, Levodopa / Carbidopa, Armeo
Drug · Device
Lead sponsor
Ross D. Zafonte, MD
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Charlestown, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 26, 2021 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 1Phase 2 Interventional

Pharmacokinetics and Pharmacodynamics of IPX054 in Subjects With Parkinson's Disease

NCT00239564
View directory record Official record
Conditions
Idiopathic Parkinson's Disease
Interventions
IPX054 100 mg, IPX054 150 mg, IPX054 200 mg, IPX054 250 mg, IPX054 300 mg
Drug
Lead sponsor
Impax Laboratories, LLC
Industry
Eligibility
30 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
2
States / cities
Sunnyvale, California • Lawrence, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 28, 2019 · Synced Sep 1, 2026, 10:20 PM EDT
Not listed Phase 2 Interventional

Effect of L-Dihydoxyphenylserine on Locomotion, Postural Stability, and Fall Risk Reduction in Parkinson Disease

NCT02812147
View directory record Official record
Conditions
Parkinson Disease
Interventions
L-DOPS, Placebo
Drug
Lead sponsor
St. Joseph's Hospital and Medical Center, Phoenix
Other
Eligibility
30 Years to 83 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Feb 14, 2019 · Synced Sep 1, 2026, 10:20 PM EDT
Completed Phase 4 Interventional Results available

Vigor and the LDR in Parkinson Disease

NCT04821830
View directory record Official record
Conditions
Parkinson Disease
Interventions
carbidopa/levodopa, as prescribed by treating physician
Drug
Lead sponsor
University of Michigan
Other
Eligibility
45 Years to 90 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 17, 2025 · Synced Sep 1, 2026, 10:20 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 3, 2008 · Synced Sep 1, 2026, 10:20 PM EDT