- Conditions
- Cocaine Dependence
- Interventions
- levodopa/carbidopa 400/100 BID
- Drug
- Lead sponsor
- Virginia Commonwealth University
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 131 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2014 – 2017
- U.S. locations
- 1
- States / cities
- Richmond, Virginia
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Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
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Showing 25–35
of 11
matching trials from the live ClinicalTrials.gov search.
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- Conditions
- Late Life Depression, Cognitive Decline, Depressive Disorder, Treatment-Resistant, Levodopa, Gait Impairment
- Interventions
- L-Dopa, Placebo
- Drug
- Lead sponsor
- Vanderbilt University Medical Center
- Other
- Eligibility
- 60 Years and older
- Enrollment
- 79 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2026
- U.S. locations
- 2
- States / cities
- Pittsburgh, Pennsylvania • Nashville, Tennessee
- Conditions
- Parkinson's Disease
- Interventions
- Accordion Pill™ Carbidopa/Levodopa, Sinemet®, Placebo -AP-CD/LD, Placebo- Sinemet
- Drug
- Lead sponsor
- Intec Pharma Ltd.
- Industry
- Eligibility
- 30 Years and older
- Enrollment
- 420 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2019
- U.S. locations
- 36
- States / cities
- Birmingham, Alabama • Phoenix, Arizona • Fountain Valley, California + 32 more
- Conditions
- PTSD, Post Traumatic Stress Disorder
- Interventions
- L-DOPA, Placebo
- Drug
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 21 Years to 50 Years · Female only
- Enrollment
- 120 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2023
- U.S. locations
- 2
- States / cities
- Austin, Texas • Madison, Wisconsin
- Conditions
- Age Related Macular Degeneration
- Interventions
- carbidopa-levodopa
- Drug
- Lead sponsor
- Snyder, Robert W., M.D., Ph.D., P.C.
- Individual
- Eligibility
- 50 Years to 85 Years
- Enrollment
- 7 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Tucson, Arizona
- Conditions
- Cocaine Abuse, Cocaine-Related Disorders
- Interventions
- Modafinil, Levodopa/Carbidopa, Naltrexone HCl, Placebo, Motivational Interviewing (MI), Contingency management (CM), Cognitive-Behavioral Therapy (CBT)
- Drug · Behavioral
- Lead sponsor
- The University of Texas Health Science Center, Houston
- Other
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 101 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2012
- U.S. locations
- 1
- States / cities
- Houston, Texas
- 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
- Chronic Pain
- Interventions
- Methylphenidate, carbidopa-levodopa, Placebo
- Drug
- Lead sponsor
- University of Rochester
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2027
- U.S. locations
- 1
- States / cities
- Rochester, New York
- Conditions
- Macula; Degeneration, Retina
- Interventions
- carbidopa-levodopa 25-100 mg
- Drug
- Lead sponsor
- Snyder, Robert W., M.D., Ph.D., P.C.
- Individual
- Eligibility
- 50 Years to 85 Years
- Enrollment
- 35 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2020
- U.S. locations
- 1
- States / cities
- Tucson, Arizona
- Conditions
- Parkinson's Disease
- Interventions
- CD-LD IR, IPX203 180 mg, IPX203 270 mg, Rytary 195 mg, Rytary 145 mg
- Drug
- Lead sponsor
- Impax Laboratories, LLC
- Industry
- Eligibility
- 40 Years and older
- Enrollment
- 26 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2016
- U.S. locations
- 11
- States / cities
- Phoenix, Arizona • Little Rock, Arkansas • Fountain Valley, California + 8 more
- Conditions
- Age-related Macular Degeneration
- Interventions
- Carbidopa-Levodopa, 25 Mg-100 Mg Oral Tablet
- Drug
- Lead sponsor
- Snyder, Robert W., M.D., Ph.D., P.C.
- Individual
- Eligibility
- 50 Years to 85 Years
- Enrollment
- 35 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2020
- U.S. locations
- 1
- States / cities
- Tucson, Arizona