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 1, 2026, 3:07 PM EDT

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

Showing 25–48 of 59 matching trials from the live ClinicalTrials.gov search.
Conditions
Parkinson Disease, Parkinsonian Syndrome
Interventions
levodopa, Mirapex (pramipexole), [123I]ß-CIT and SPECT imaging
Drug · Procedure
Lead sponsor
Institute for Neurodegenerative Disorders
Other
Eligibility
30 Years and older
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
13
States / cities
Oxnard, California • Englewood, Colorado • New Haven, Connecticut + 9 more
Conditions
Infertility, Female
Interventions
Follitropin delta, Placebo
Drug
Lead sponsor
Ferring Pharmaceuticals
Industry
Eligibility
35 Years to 42 Years · Female only
Enrollment
588 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
24
States / cities
Tempe, Arizona • Encino, California • Farmington, Connecticut + 21 more
Completed Phase 1 Interventional Accepts healthy volunteers

The Effect of Dopamine on Diabetic Retinopathy

NCT02706977
Conditions
Diabetes
Interventions
Low Dose Sinemet CR, High Dose Sinemet CR, RETeval Electroretinogram (ERG) Testing, Contrast Sensitivity Testing, Visual Acuity Testing
Drug · Device · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dopaminergic Effects of Adjunctive Aripiprazole on the Brain in Treatment-Resistant Depression

NCT00953745
Conditions
Major Depressive Disorder
Interventions
Escitalopram, Aripiprazole, Placebo Capsule, Placebo Tablet
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 55 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Parkinson Disease
Interventions
Resistance Exercise via Negative Eccentric Work, Standard care exercise training
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
40 Years to 90 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Stimulant Use, Relapse, Cognitive Function, ADHD
Interventions
Contrave 8Mg-90Mg Extended-Release Tablet, Bupropion
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Parkinson Disease
Interventions
Gait tests with and without the use of a tactile sensory cue (electrical stimulation using a TENS unit)
Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
50 Years to 80 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Parkinson Disease
Interventions
Stepping training
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
50 Years to 80 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Salt Lake City, Utah
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
Completed Phase 1 Interventional Accepts healthy volunteers

Relative Bioavailability of LY03010 Compared to Listed Drug

NCT04922593
Conditions
Schizophrenia, Psychotic Disorders, Mood Disorders, Schizophrenia Spectrum, Mental Disorders, Antipsychotic Agents, Tranquilizing Agents, Central Nervous System Depressants, Physiological Effects of Drugs, Psychotropic Drugs, Neurotransmitter Agents, Molecular Mechanisms of Pharmacological Action
Interventions
LY03010; paliperidone palmitate, INVEGA SUSTENNA
Drug
Lead sponsor
Luye Pharma Group Ltd.
Industry
Eligibility
18 Years to 65 Years
Enrollment
281 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
9
States / cities
Garden Grove, California • Lemon Grove, California • Torrance, California + 6 more
Recruiting Phase 4 Interventional Accepts healthy volunteers

Pimavanserin vs. Quetiapine for Treatment of Parkinson's Psychosis

NCT04373317
Conditions
Parkinson's Disease Psychosis
Interventions
Pimavanserin, Quetiapine
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
40 Years and older
Enrollment
358 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2028
U.S. locations
24
States / cities
Tucson, Arizona • Loma Linda, California • Palo Alto, California + 20 more
Terminated Early Phase 1 Interventional

Vitamin D and Cocaine Administration

NCT04826133
Conditions
Cocaine Use Disorder
Interventions
Calcitriol, Placebo
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
30 Years to 55 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
Prolactin-Producing Pituitary Tumor
Interventions
Pasireotide, SF-36 and HADS
Drug · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Behavioral Effects of Drugs (Inpatient): 40 [Methamphetamine, Methylphenidate, Duloxetine]

NCT04178993
Conditions
Methamphetamine Use Disorder
Interventions
Methamphetamine, Methylphenidate, Placebo oral capsule, Duloxetine
Drug
Lead sponsor
Craig Rush
Other
Eligibility
18 Years to 55 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
2
States / cities
Lexington, Kentucky
Completed Phase 1 Interventional Accepts healthy volunteers Results available

The Influence of ANS-6637 on Midazolam Pharmacokinetics in Healthy Volunteers

NCT03831971
Conditions
Opiod Use Disorder
Interventions
ANS-6637
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Parkinsonian Signs in Older Persons
Interventions
Carbidopa 25 mg, Carbidopa-Levodopa 25/100 mg, Placebo 1, Placebo 2
Drug
Lead sponsor
University of Michigan
Other
Eligibility
60 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
2
States / cities
Ann Arbor, Michigan
Conditions
Parkinson Disease, Idiopathic Parkinson Disease
Interventions
N acetyl cysteine, [F-18] Fluorodopa Positron Emission Tomography
Dietary Supplement · Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
30 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Depressive Disorder
Interventions
Carbidopa/levodopa, Placebo, Exercise training, Control
Drug · Behavioral
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
60 Years to 100 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
New York, New York
Conditions
Gastroparesis
Interventions
Domperidone
Drug
Lead sponsor
Arnold, George, M.D.
Individual
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2018
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Parkinson Disease
Interventions
150% of their routine home dopaminergic medications dose right in the clinic, Evaluation of mathematical models
Drug · Device
Lead sponsor
Stardots AB
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Manchester, New Hampshire
Conditions
Parkinson Disease
Interventions
Upper limb feeding training
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
50 Years to 80 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Parkinsonian Signs in Older Persons
Interventions
Carbidopa 25 mg, Carbidopa-Levodopa 25/100 mg
Drug
Lead sponsor
University of Michigan
Other
Eligibility
60 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
2
States / cities
Ann Arbor, Michigan
Conditions
Parkinson's Disease
Interventions
Detailed motor testing, including FoG, in PD subjects
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
50 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Ann Arbor, Michigan
Conditions
Major Depressive Disorder, Bipolar Disorder
Interventions
chronobiological augmentation, sertraline, lithium, one night of sleep deprivation and two FDG PET scans
Other · Drug · Radiation
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years to 75 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2011
U.S. locations
2
States / cities
Irvine, California • La Jolla, California