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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Early Parkinson Disease Clear all
Completed Phase 3 Interventional

SLV 308 and Pramipexole for Treatment of Patients With Early Parkinson Disease

NCT00335166
View directory record Official record
Conditions
Early Stage Parkinson Disease
Interventions
Pardaprunox, pramipexole, Placebo Comparator
Drug
Lead sponsor
Solvay Pharmaceuticals
Industry
Eligibility
30 Years and older
Enrollment
330 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
17
States / cities
Birmingham, Alabama • Oceanside, California • Oxnard, California + 13 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2008 · Synced Jun 11, 2026, 5:19 AM EDT
Completed Phase 1Phase 2 Interventional

A Study of Three Doses of TCH346 in Patients With Early Parkinson's Disease to Evaluate Safety and Efficacy

NCT00407212
View directory record Official record
Conditions
Parkinson's Disease
Interventions
TCH346 (dibenz[b,f]oxepin-10-ylmethyl-prop-2-ynyl-amine, hydrogen maleate salt)
Drug
Lead sponsor
Novartis
Industry
Eligibility
30 Years to 80 Years
Enrollment
301 participants
Timeline
2002 – 2003
U.S. locations
11
States / cities
Phoenix, Arizona • Berkley, California • Fountain Valley, California + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 22, 2011 · Synced Jun 11, 2026, 5:19 AM EDT
Completed Phase 4 Interventional Results available

A Fixed Dose, Dose Response Study for Ropinirole Prolonged Release in Patients With Early Stage Parkinson's Disease

NCT01485172
View directory record Official record
Conditions
Parkinson Disease
Interventions
ropinirole monotherapy, placebo monotherapy
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
30 Years and older
Enrollment
186 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
11
States / cities
Fountain Valley, California • Pasadena, California • Reseda, California + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 19, 2018 · Synced Jun 11, 2026, 5:19 AM EDT
Active, not recruiting Phase 2 Interventional

Adrenergic Blockers for Cardiac Changes in Early Parkinson's Disease (Protocol 53136)

NCT03775096
View directory record Official record
Conditions
REM Sleep Behavior Disorder, Pre-motor Parkinson Disease, Symptomatic Parkinson Disease
Interventions
Carvedilol
Drug
Lead sponsor
Michele Tagliati, MD
Other
Eligibility
50 Years to 85 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Jun 11, 2026, 5:19 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Mutations Associated With Parkinson s Disease

NCT01547832
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 80 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 28, 2018 · Synced Jun 11, 2026, 5:19 AM EDT
Completed Phase 3 Interventional Results available

Fixed-Dose Trial in Early Parkinson's Disease (PD)

NCT04201093
View directory record Official record
Conditions
Parkinson Disease
Interventions
Tavapadon, Placebo
Drug
Lead sponsor
AbbVie
Industry
Eligibility
40 Years to 80 Years
Enrollment
529 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
27
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Fountain Valley, California + 24 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2025 · Synced Jun 11, 2026, 5:19 AM EDT
Not yet recruiting Phase 1 Interventional

AAV2-hAADC for Parkinson's Disease (PDCS-01)

NCT07267065
View directory record Official record
Conditions
Parkinson's Disease (PD), Early Onset Parkinson Disease
Interventions
AAV2-hAADC
Drug
Lead sponsor
Krzysztof Bankiewicz
Other
Eligibility
18 Years to 75 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 4, 2025 · Synced Jun 11, 2026, 5:19 AM EDT
Terminated No phase listed Observational

The Long Term Impact of Initiating Pramipexole Versus Levodopa in Early Parkinson's Disease (CALM-PD Cohort Study)

NCT00804479
View directory record Official record
Conditions
Parkinson's Disease
Interventions
No intervention.
Other
Lead sponsor
University of Rochester
Other
Eligibility
Not listed
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2004
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jan 20, 2016 · Synced Jun 11, 2026, 5:19 AM EDT
Active, not recruiting Phase 2 Interventional

A Study of NE3107 in Early Parkinson's

NCT06757010
View directory record Official record
Conditions
Parkinsons Disease (PD)
Interventions
NE3107, Placebo
Drug
Lead sponsor
BioVie Inc.
Industry
Eligibility
45 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
4
States / cities
Farmington Hills, Michigan • Amherst, New York • Morrisville, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Jun 11, 2026, 5:19 AM EDT
Completed Phase 1 Interventional

Phase 1 Study of BAY1905254 - An Early Clinical Research Study to Evaluate a New Drug Called Bapotulimab (BAY1905254) in the Expansion Cohort in Combination With Pembrolizumab in Head and Neck Cancer That Has Returned or is Discovered to be Metastatic and is Expressing PDL1.

NCT03666273
View directory record Official record
Conditions
Advanced Solid Tumor, Head and Neck Squamous Cell Carcinoma
Interventions
Bapotulimab (BAY1905254), Bapotulimab (BAY1905254) + Pembrolizumab (KEYTRUDA®)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
8
States / cities
Tucson, Arizona • New Haven, Connecticut • Chicago, Illinois + 5 more
Source: ClinicalTrials.gov public record
Updated May 27, 2024 · Synced Jun 11, 2026, 5:19 AM EDT
Completed Phase 2 Interventional

NINDS Parkinson's Disease Neuroprotection Trial of CoQ10 and GPI 1485

NCT00076492
View directory record Official record
Conditions
Parkinson Disease
Interventions
CoQ10, GPI 1485
Drug
Lead sponsor
University of Rochester
Other
Eligibility
30 Years and older
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Nov 1, 2012 · Synced Jun 11, 2026, 5:19 AM EDT
Completed Phase 3 Interventional Results available

Efficacy, Safety, Tolerability of Pramipexol ER Versus Pramipexol IR Versus Placebo in Early PD Patients

NCT00479401
View directory record Official record
Conditions
Early Parkinson Disease (Early PD)
Interventions
Pramipexol Extended Release, Pramipexol Immediate Release, Placebo
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
30 Years and older
Enrollment
539 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
16
States / cities
Gilbert, Arizona • Sun City, Arizona • La Jolla, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2014 · Synced Jun 11, 2026, 5:19 AM EDT
Recruiting Phase 3 Interventional

A Clinical Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) in People With Breast Cancer (MK-2870-032)

NCT06966700
View directory record Official record
Conditions
Breast Neoplasms, Triple Negative Breast Neoplasms, HR Low-Positive/HER2-Negative Breast Neoplasms
Interventions
Sacituzumab tirumotecan, Pembrolizumab, Rescue Medication, Carboplatin, Paclitaxel, Doxorubicin, Epirubicin, Cyclophosphamide, Capecitabine, Olaparib
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
2,400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2034
U.S. locations
53
States / cities
Gilbert, Arizona • Phoenix, Arizona • Tucson, Arizona + 46 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Jun 11, 2026, 5:19 AM EDT
Completed Phase 3 Interventional Results available

A Phase 3 Study With P2B001 in Subjects With Early Parkinson's

NCT03329508
View directory record Official record
Conditions
Parkinson Disease, Early Parkinson's Disease
Interventions
P2B001 0.6/0.75 mg, Rasagiline 0.75 mg, Pramipexole 0.6 mg, Marketed Pramipexole ER
Drug
Lead sponsor
Pharma Two B Ltd.
Industry
Eligibility
35 Years to 80 Years
Enrollment
544 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
45
States / cities
Scottsdale, Arizona • Little Rock, Arkansas • Los Angeles, California + 39 more
Source: ClinicalTrials.gov public record
Updated Mar 20, 2023 · Synced Jun 11, 2026, 5:19 AM EDT
Completed Phase 3 Interventional Results available

Study of Urate Elevation in Parkinson's Disease, Phase 3

NCT02642393
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Inosine, Placebo
Drug
Lead sponsor
Michael Alan Schwarzschild
Other
Eligibility
30 Years and older
Enrollment
298 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
61
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 51 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2020 · Synced Jun 11, 2026, 5:19 AM EDT
Terminated Phase 2 Interventional

Efficacy and Safety Study of Aplindore in Patients With Early Parkinson Disease

NCT00809302
View directory record Official record
Conditions
Early Parkinson Disease
Interventions
aplindore MR tablets or Placebo
Drug
Lead sponsor
Neurogen Corporation
Industry
Eligibility
30 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
25
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Sunnyvale, California + 22 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2009 · Synced Jun 11, 2026, 5:19 AM EDT
Not yet recruiting Not applicable Interventional

Slow-SPEED: Slowing Parkinson's Early Through Exercise Dosage

NCT06993142
View directory record Official record
Conditions
Parkinson Disease, Prodromal Stage, Neurodegenerative Diseases, Basal Ganglia Diseases, Central Nervous System Diseases, Synucleinopathies, Nervous System Diseases, Cerebral Disorder, Brain Diseases, Parkinsonian Disorders, Genetic Predisposition
Interventions
Increase of physical activity volume and intensity with the use of a motivational smartphone application
Behavioral
Lead sponsor
Radboud University Medical Center
Other
Eligibility
50 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2025 · Synced Jun 11, 2026, 5:19 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

A Study to Analyze Symptoms Prevalent in Early PD (Dysphonia, Tremor)

NCT04288804
View directory record Official record
Conditions
Parkinson Disease
Interventions
Smartphone microphone sensor, Smartphone accelerometer sensor
Device
Lead sponsor
Goalspal LLC
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Pleasanton, California
Source: ClinicalTrials.gov public record
Updated Aug 2, 2022 · Synced Jun 11, 2026, 5:19 AM EDT
Completed Phase 2 Interventional Results available

Safety of Urate Elevation in Parkinson's Disease

NCT00833690
View directory record Official record
Conditions
Parkinson Disease
Interventions
Placebo, inosine
Drug
Lead sponsor
The Parkinson Study Group
Network
Eligibility
30 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
16
States / cities
Los Angeles, California • Manchester, Connecticut • New Haven, Connecticut + 12 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2014 · Synced Jun 11, 2026, 5:19 AM EDT
Recruiting Phase 3 Interventional

A Study to Evaluate the Efficacy and Safety of Intravenous (IV) Prasinezumab in Participants With Early-Stage Parkinson's Disease

NCT07174310
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Prasinezumab, Placebo
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
50 Years to 85 Years
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
42
States / cities
Birmingham, Alabama • Phoenix, Arizona • Fullerton, California + 38 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jun 11, 2026, 5:19 AM EDT
Active, not recruiting No phase listed Observational

Pre-Gene Therapy Study in Parkinson's Disease and Multiple System Atrophy

NCT05699460
View directory record Official record
Conditions
Parkinson's Disease, Multiple System Atrophy, Parkinson Variant, Multiple System Atrophy
Interventions
This is an observational study.
Other
Lead sponsor
AskBio Inc
Industry
Eligibility
35 Years to 75 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
7
States / cities
Irvine, California • Boca Raton, Florida • Boston, Massachusetts + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2025 · Synced Jun 11, 2026, 5:19 AM EDT
Active, not recruiting Phase 2 Interventional

Cardiac Changes in Early Parkinson's Disease: A Follow up Study

NCT04218968
View directory record Official record
Conditions
REM Sleep Behavior Disorder, Pre-motor Parkinson Disease, Symptomatic Parkinson Disease
Interventions
Carvedilol
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Jun 11, 2026, 5:19 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Safety, Tolerability and Efficacy of Two Doses of Once Daily P2B001 in Subjects With Early Parkinson's Disease

NCT01968460
View directory record Official record
Conditions
Parkinson's Disease
Interventions
P2B001 once daily (pramipexole 0.6 mg / rasagiline 0.75 mg),, Placebo, P2B001 once daily (pramipexole 0.3 mg / rasagiline 0.75 mg),
Drug
Lead sponsor
Pharma Two B Ltd.
Industry
Eligibility
35 Years to 75 Years
Enrollment
149 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
24
States / cities
Birmingham, Alabama • Los Angeles, California • Aurora, Colorado + 21 more
Source: ClinicalTrials.gov public record
Updated Apr 6, 2023 · Synced Jun 11, 2026, 5:19 AM EDT
Recruiting Phase 1 Interventional

Enrichment of Glutathione Using Gamma-glutamylcysteine Supplementation in Parkinson's Disease Patients.

NCT07064005
View directory record Official record
Conditions
Parkinsons Disease (PD)
Interventions
Gamma- glutamylcysteine
Drug
Lead sponsor
Pravat Mandal
Other
Eligibility
50 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Jun 11, 2026, 5:19 AM EDT