- Conditions
- Parkinson's Disease (PD)
- Interventions
- ABBV-951, Placebo for Levodopa/Carbidopa (LD/CD), Levodopa/Carbidopa (LD/CD), Placebo for ABBV-951
- Drug
- Lead sponsor
- AbbVie
- Industry
- Eligibility
- 30 Years and older
- Enrollment
- 174 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 70
- States / cities
- Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 62 more
Search Results
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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 25–48
of 24
matching trials from the live ClinicalTrials.gov search.
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- Conditions
- Anhedonia, Depression
- Interventions
- Carbidopa Levodopa, Placebo
- Drug
- Lead sponsor
- Emory University
- Other
- Eligibility
- 25 Years to 55 Years
- Enrollment
- 70 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2027
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Parkinson's Disease
- Interventions
- KW-6002 (istradefylline)
- Drug
- Lead sponsor
- Kyowa Kirin, Inc.
- Industry
- Eligibility
- 30 Years and older
- Enrollment
- 180 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2002 – 2003
- U.S. locations
- 1
- States / cities
- Princeton, New Jersey
- 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
- 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
- Conditions
- Parkinson's Disease
- Interventions
- XP21279 and carbidopa (experimental), Sinemet (comparator), Placebo for XP21279 and carbidopa, Placebo for Sinemet
- Drug
- Lead sponsor
- XenoPort, Inc.
- Industry
- Eligibility
- 30 Years to 80 Years
- Enrollment
- 35 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2011
- U.S. locations
- 12
- States / cities
- Phoenix, Arizona • Little Rock, Arkansas • Long Beach, California + 9 more
- 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
- Acute Pain, Bunionectomy, Toe Fusion
- Interventions
- Carbidopa-Levodopa (100mg/25mg):, Naproxen
- Drug
- Lead sponsor
- Northwestern University
- Other
- Eligibility
- 18 Years to 75 Years · Female only
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2024
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Parkinson's Disease
- Interventions
- Carbidopa/levodopa/entacapone, Immediate release carbidopa/levodopa
- Drug
- Lead sponsor
- Novartis
- Industry
- Eligibility
- 30 Years to 85 Years
- Enrollment
- 14 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2009
- U.S. locations
- 21
- States / cities
- Phoenix, Arizona • Aliso Viejo, California • Irvine, California + 17 more
- Conditions
- Cocaine Dependence
- Interventions
- levodopa, Placebo, Cognitive Behavioral Therapy, Contingency Management
- Drug · Behavioral
- Lead sponsor
- The University of Texas Health Science Center, Houston
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 85 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2011
- U.S. locations
- 1
- States / cities
- Houston, Texas
- 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
- 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
- Conditions
- Spinal Cord Injuries
- Interventions
- 5HTP, L-DOPA, Placebo oral tablet, Carbidopa
- Drug
- Lead sponsor
- Jessica M D'Amico
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2023
- U.S. locations
- 1
- States / cities
- Louisville, Kentucky
- Conditions
- Parkinson Disease
- Interventions
- NE3107, placebo
- Drug
- Lead sponsor
- BioVie Inc.
- Industry
- Eligibility
- 30 Years to 80 Years
- Enrollment
- 46 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2023
- U.S. locations
- 16
- States / cities
- Englewood, Colorado • Boca Raton, Florida • Hallandale, Florida + 10 more
- Conditions
- Angelman Syndrome
- Interventions
- Levodopa, Placebo Oral Capsule
- Drug
- Lead sponsor
- Wen-Hann Tan
- Other
- Eligibility
- 4 Years to 12 Years
- Enrollment
- 67 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2015
- U.S. locations
- 7
- States / cities
- San Diego, California • San Francisco, California • Boston, Massachusetts + 4 more
- 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
- Idiopathic Parkinson's Disease
- Interventions
- IPX054 200 mg, IPX054 250 mg, CD-LD IR, CD-LD CR, IPX054 200 mg Placebo, IPX054 250 mg Placebo, CD-LD IR Placebo, CD-LD CR Placebo
- Drug
- Lead sponsor
- Impax Laboratories, LLC
- Industry
- Eligibility
- 30 Years and older
- Enrollment
- 16 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2007
- U.S. locations
- 2
- States / cities
- Bingham Farms, Michigan • Portland, Oregon
- Conditions
- Major Depressive Disorder, Dysthymia, Depression
- Interventions
- L-DOPA, Placebo Oral Tablet
- Drug
- Lead sponsor
- New York State Psychiatric Institute
- Other
- Eligibility
- 60 Years and older
- Enrollment
- 51 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2021
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Age-related Macular Degeneration
- Interventions
- carbidopa-levodopa 25-100 mg, placebo for carbidopa-levodopa 25-100 mg
- Drug
- Lead sponsor
- Snyder, Robert W., M.D., Ph.D., P.C.
- Individual
- Eligibility
- 50 Years to 85 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2020
- U.S. locations
- 1
- States / cities
- Tucson, Arizona
- Conditions
- Depression
- Interventions
- Levodopa+carbidopa, Placebo
- Drug
- Lead sponsor
- Emory University
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 57 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2020
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Advanced Parkinson's Disease
- Interventions
- Levodopa carbidopa intestinal gel (LCIG), Placebo Gel, Levodopa-carbidopa (LC) oral encapsulated immediate release (IR) tablets, Placebo (PBO) oral capsules, CADD-Legacy® 1400 ambulatory infusion pump, PEG tube, J-tube
- Drug · Device
- Lead sponsor
- AbbVie (prior sponsor, Abbott)
- Industry
- Eligibility
- 30 Years and older
- Enrollment
- 35 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 11
- States / cities
- Birmingham, Alabama • Fountain Valley, California • Oceanside, California + 8 more
- 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
- 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 Dependence
- Interventions
- levodopa carbidopa and entacapone (LCE), Placebo
- Drug
- Lead sponsor
- New York State Psychiatric Institute
- Other
- Eligibility
- 21 Years to 50 Years
- Enrollment
- 23 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2014 – 2015
- U.S. locations
- 1
- States / cities
- New York, New York