Independent directory Public ClinicalTrials.gov records United States
Clear filters

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

ClinicalTrials.gov public records Last synced Oct 2, 2026, 8:14 PM EDT

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

Showing 97–120 of 124 matching trials from the live ClinicalTrials.gov search.
Completed Not applicable Interventional Accepts healthy volunteers Results available

Neurobiological Principles Applied to the Rehabilitation of Stroke Patients

NCT00715520
Conditions
Stroke
Interventions
Transcranial Magnetic Stimulation (TMS), Carbidopa-Levodopa, Methylphenidate, Amphetamine Sulfate, Placebo, Sham Transcranial Magnetic Stimulation (TMS), Transcranial Magnetic Stimulation (TMS) Training
Other · Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 80 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2016
U.S. locations
1
States / cities
Atlanta, Georgia
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
Terminated Phase 2 Interventional Results available

Vision Response to Dopamine Replacement

NCT01663935
Conditions
Albinism, Oculocutaneous Albinism
Interventions
Levodopa/carbidopa
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
3 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Madison, Wisconsin
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
Completed Phase 2 Interventional Results available

Carbidopa-levodopa in Neovascular AMD

NCT03022318
Conditions
Age-related Macular Degeneration
Interventions
carbidopa-levodopa 25-100 mg tablets
Drug
Lead sponsor
Snyder, Robert W., M.D., Ph.D., P.C.
Individual
Eligibility
50 Years to 85 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Tucson, Arizona
Conditions
Parkinson's Disease (PD)
Interventions
ABBV-951
Drug
Lead sponsor
AbbVie
Industry
Eligibility
30 Years and older
Enrollment
244 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
24
States / cities
Birmingham, Alabama • Sun City, Arizona • Fountain Valley, California + 21 more
Conditions
Opioid Use, Opioid Dependence, Opioid-use Disorder, Narcotic Use, Back Pain, Back Injuries, Chronic Pain, Chronic Low-back Pain, Pain, Chronic, Pain;Back Low;Chronic, Pain, Back
Interventions
Carbidopa-Levodopa 25 Mg-100 Mg Oral Tablet, Naproxen 500 Mg, Opioids
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Parkinson's Disease
Interventions
Levodopa, Zolpidem first dose, Zolpidem second dose, sugar pill
Drug
Lead sponsor
Rush University Medical Center
Other
Eligibility
30 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Chicago, Illinois
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
Active, not recruiting Phase 3 Interventional

Infusion of Apomorphine: Long-term Safety Study

NCT02339064
Conditions
Idiopathic Parkinson's Disease
Interventions
apomorphine infusion
Drug
Lead sponsor
MDD US Operations, LLC a subsidiary of Supernus Pharmaceuticals
Industry
Eligibility
30 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2025
U.S. locations
18
States / cities
Phoenix, Arizona • Loma Linda, California • Los Angeles, California + 13 more
Conditions
Parkinson's Disease
Interventions
levodopa
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
30 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2004
U.S. locations
1
States / cities
New York, New York
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
Conditions
Parkinson's Disease
Interventions
Accordion Pill™ Carbidopa/Levodopa
Drug
Lead sponsor
Intec Pharma Ltd.
Industry
Eligibility
30 Years to 100 Years
Enrollment
460 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
37
States / cities
Birmingham, Alabama • Phoenix, Arizona • Sun City, Arizona + 33 more
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
Conditions
Parkinson's Disease
Interventions
CVT-301, Sinemet
Drug
Lead sponsor
Acorda Therapeutics
Industry
Eligibility
30 Years to 85 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
5
States / cities
Long Beach, California • Hallandale, Florida • Orlando, Florida + 2 more
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
Parkinson's Disease
Interventions
IPX066, CLE
Drug
Lead sponsor
Impax Laboratories, LLC
Industry
Eligibility
30 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
12
States / cities
Fresno, California • Sunnyvale, California • Miami, Florida + 9 more
Conditions
Cocaine Abuse
Interventions
L-dopa / carbidopa / entacapone (LCE)
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 50 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
New York, New York
Conditions
Cocaine Abuse, Cocaine-Related Disorders
Interventions
Levodopa, Carbidopa, Clinical Management, Relapse Prevention Therapy, Contingency Management
Drug · Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 55 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2007
U.S. locations
1
States / cities
Houston, Texas
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
Parkinsonian Signs in Older Persons
Interventions
carbidopa
Drug
Lead sponsor
University of Michigan
Other
Eligibility
60 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Ann Arbor, Michigan
Conditions
Parkinson's Disease
Interventions
Istradefylline (KW-6002)
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
30 Years and older
Enrollment
580 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
2
States / cities
Princeton, New Jersey
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
Conditions
Parkinson's Disease (PD)
Interventions
Optimized antiparkinsonian treatment, Levodopa-Carbidopa Intestinal Gel (LCIG), CADD-Legacy ambulatory infusion pump, Percutaneous endoscopic gastrostomy tube, Jejunal extension tube
Drug · Device
Lead sponsor
AbbVie
Industry
Eligibility
30 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
2
States / cities
Port Charlotte, Florida • Round Rock, Texas