- Conditions
- Cocaine Abuse, Cocaine Dependence, Opiate Dependence, Alcohol Dependence, Substance Abuse
- Interventions
- modafinil, d-amphetamine, L-Dopa, Naltrexone
- Drug
- Lead sponsor
- The University of Texas Health Science Center, Houston
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 7,500 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2005 – 2026
- U.S. locations
- 1
- States / cities
- Houston, Texas
Search Results
Search by objective public record fields.
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.
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 24
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- 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
- 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
- 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
- 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
- Parkinson's Disease, Motor Symptoms, Akinesia, Hypomobility, Delayed Levodopa Onset
- Interventions
- APOKYN, L-dopa, Trimethobenzamide
- Drug
- Lead sponsor
- MDD US Operations, LLC a subsidiary of Supernus Pharmaceuticals
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 127 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2014
- U.S. locations
- 12
- States / cities
- Los Angeles, California • Reseda, California • Washington D.C., District of Columbia + 9 more
- 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
- 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
- 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
- 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
- Parkinson's Disease (Disorder)
- Interventions
- IR CD-LD, IPX203 ER CD-LD, Placebo Matching IPX203, Placebo Matching IR CD-LD
- Drug · Other
- Lead sponsor
- Impax Laboratories, LLC
- Industry
- Eligibility
- 40 Years and older
- Enrollment
- 630 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2021
- U.S. locations
- 56
- States / cities
- Phoenix, Arizona • Little Rock, Arkansas • Loma Linda, California + 46 more
- Conditions
- Idiopathic Parkinson Disease
- Interventions
- XADAGO (safinamide)
- Drug
- Lead sponsor
- Supernus Pharmaceuticals, Inc.
- Industry
- Eligibility
- 30 Years to 80 Years
- Enrollment
- 164 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2020
- U.S. locations
- 30
- States / cities
- Homewood, Alabama • Bakersfield, California • Laguna Hills, California + 27 more
- Conditions
- Parkinson's Disease
- Interventions
- IPX066, IR CD-LD
- Drug
- Lead sponsor
- Impax Laboratories, LLC
- Industry
- Eligibility
- 30 Years and older
- Enrollment
- 27 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2009
- U.S. locations
- 1
- States / cities
- Hayward, California
- Conditions
- Cocaine Dependence
- Interventions
- levodopa/carbidopa, Ropinirole 2 mg/d, Placebo, Ropinirole 4 mg/d
- Drug
- Lead sponsor
- The University of Texas Health Science Center, Houston
- Other
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 119 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2017
- U.S. locations
- 1
- States / cities
- Houston, Texas
- 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
- 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 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
- 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
- 36 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 8
- States / cities
- Los Angeles, California • Englewood, Colorado • Washington D.C., District of Columbia + 5 more
- Conditions
- Parkinson Disease
- Interventions
- SAGE-217, Levodopa, Antiparkinsonian Agent(s)
- Drug
- Lead sponsor
- Biogen
- Industry
- Eligibility
- 40 Years to 75 Years
- Enrollment
- 29 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2017
- U.S. locations
- 11
- States / cities
- Panorama City, California • Jacksonville, Florida • Miami, Florida + 7 more
- 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
- Levodopa
- Drug
- Lead sponsor
- Kevin J. Black, MD
- Other
- Eligibility
- 40 Years to 79 Years
- Enrollment
- 31 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2019
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- 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
- 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'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