- 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
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 come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
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 124
matching trials from the live ClinicalTrials.gov search.
- 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
- Parkinson's Disease
- Interventions
- Istradefylline (KW-6002)
- Drug
- Lead sponsor
- Kyowa Kirin, Inc.
- Industry
- Eligibility
- 30 Years and older
- Enrollment
- 230 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2004 – 2006
- U.S. locations
- 1
- States / cities
- Princeton, New Jersey
- 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
- Parkinson's Disease
- Interventions
- IPX066, IR CD-LD
- Drug
- Lead sponsor
- Impax Laboratories, LLC
- Industry
- Eligibility
- 30 Years and older
- Enrollment
- 471 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 35
- States / cities
- Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 30 more
- 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
- 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
- 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
- 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
- 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
- Parkinson's Disease, Motor Symptoms
- Interventions
- APOKYN, Physical Therapy
- Drug · Behavioral
- Lead sponsor
- MDD US Operations, LLC a subsidiary of Supernus Pharmaceuticals
- Industry
- Eligibility
- 18 Years to 78 Years
- Enrollment
- 13 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016
- U.S. locations
- 12
- States / cities
- Phoenix, Arizona • Scottsdale, Arizona • Loma Linda, California + 9 more
- Conditions
- Advanced Parkinson's Disease
- Interventions
- Levodopa-Carbidopa Intestinal Gel (LCIG), CADD-Legacy® 1400 ambulatory infusion pump, Percutaneous Endoscopic Gastrostomy with jejunal extension tube (PEG-J)
- Drug · Device
- Lead sponsor
- AbbVie
- Industry
- Eligibility
- 30 Years to 99 Years
- Enrollment
- 262 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2021
- U.S. locations
- 31
- States / cities
- Birmingham, Alabama • Encinitas, California • Fountain Valley, California + 25 more
- 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
- 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
- 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
- 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
- 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
- Parkinson's Disease
- Interventions
- istradefylline
- Drug
- Lead sponsor
- Kyowa Kirin, Inc.
- Industry
- Eligibility
- 30 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2002 – 2003
- U.S. locations
- 1
- States / cities
- Princeton, New Jersey
- 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
- Advanced Parkinson's Disease
- Interventions
- Sinemet, IPX203
- Drug
- Lead sponsor
- Impax Laboratories, LLC
- Industry
- Eligibility
- 40 Years to 100 Years
- Enrollment
- 28 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2017
- U.S. locations
- 11
- States / cities
- Little Rock, Arkansas • Boca Raton, Florida • Naples, Florida + 7 more
- Conditions
- Parkinson Disease
- Interventions
- CREXONT ER
- Drug
- Lead sponsor
- Impax Laboratories, LLC
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 220 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2026
- U.S. locations
- 27
- States / cities
- Phoenix, Arizona • Little Rock, Arkansas • Aliso Viejo, California + 22 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
- 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