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ClinicalTrials.gov public records Last synced May 21, 2026, 10:12 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 202 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Parkinson Disease 2 Clear all
Completed Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Melanoma
Interventions
Pembrolizumab, Pembrolizumab/Quavonlimab, Lenvatinib
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 120 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
9
States / cities
Los Angeles, California • Santa Monica, California • Aurora, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2025 · Synced May 21, 2026, 10:12 PM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Endometrial Neoplasms
Interventions
Pembrolizumab, Carboplatin, Paclitaxel, Placebo for pembrolizumab, Docetaxel, Cisplatin, External Beam Radiotherapy (EBRT), Cisplatin (as radiosensitizer), Brachytherapy
Biological · Drug · Radiation
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older · Female only
Enrollment
990 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
29
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 26 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2025 · Synced May 21, 2026, 10:12 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Metastatic Non-Small Cell Lung Cancer
Interventions
Pembrolizumab, Lenvatinib, Docetaxel
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
422 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
28
States / cities
Bakersfield, California • Fleming Island, Florida • Orange City, Florida + 24 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2025 · Synced May 21, 2026, 10:12 PM EDT
Active, not recruiting Phase 2 Interventional
View directory record Official record
Conditions
Parkinson's Disease
Interventions
BIA 28-6156 10 mg, BIA 28-6156 60 mg, Placebo
Drug
Lead sponsor
Bial R&D Investments, S.A.
Industry
Eligibility
35 Years to 80 Years
Enrollment
237 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
43
States / cities
Phoenix, Arizona • La Jolla, California • Los Angeles, California + 30 more
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced May 21, 2026, 10:12 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Parkinson Disease
Interventions
PDM608, Placebo
Drug
Lead sponsor
Calibr, a division of Scripps Research
Other
Eligibility
18 Years to 65 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 17, 2025 · Synced May 21, 2026, 10:12 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Hepatocellular Carcinoma
Interventions
Pembrolizumab, Placebo
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
959 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
24
States / cities
Gilbert, Arizona • Tucson, Arizona • Duarte, California + 18 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced May 21, 2026, 10:12 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers
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 May 21, 2026, 10:12 PM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Esophageal Squamous Cell Carcinoma (ESCC), Gastroesophageal Junction Carcinoma (GEJC), Esophageal Adenocarcinoma (EAC)
Interventions
pembrolizumab, placebo, cisplatin, 5-FU, radiotherapy, leucovorin, levoleucovorin, oxaliplatin
Biological · Drug · Radiation
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
703 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
19
States / cities
Long Beach, California • Columbus, Georgia • Westwood, Kansas + 16 more
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced May 21, 2026, 10:12 PM EDT
Recruiting No phase listed Observational
View directory record Official record
Conditions
Carcinoma, Non-Small-Cell Lung
Interventions
Tumor Imaging, Tumor Tissue Collection, Blood Sample Collection
Diagnostic Test · Procedure
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
1,065 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2032
U.S. locations
18
States / cities
Gilbert, Arizona • Duarte, California • San Francisco, California + 14 more
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced May 21, 2026, 10:12 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Prostatic Neoplasms
Interventions
Pembrolizumab, Olaparib, Abiraterone acetate, Prednisone, Enzalutamide, Prednisolone
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older · Male only
Enrollment
793 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
29
States / cities
Fullerton, California • Los Angeles, California • Washington D.C., District of Columbia + 24 more
Source: ClinicalTrials.gov public record
Updated May 17, 2025 · Synced May 21, 2026, 10:12 PM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Carcinoma, Renal Cell
Interventions
Belzutifan, Pembrolizumab, Placebo
Drug · Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
1,800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
37
States / cities
Phoenix, Arizona • Duarte, California • La Jolla, California + 31 more
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced May 21, 2026, 10:12 PM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Parkinson Disease
Interventions
Pridopidine, Placebo
Drug
Lead sponsor
Prilenia
Industry
Eligibility
30 Years to 85 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
33
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 27 more
Source: ClinicalTrials.gov public record
Updated Jun 30, 2022 · Synced May 21, 2026, 10:12 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Metastatic Urothelial Carcinoma, Locally Advanced Urothelial Carcinoma
Interventions
Sacituzumab tirumotecan, Enfortumab Vedotin, Pembrolizumab, Supportive care measures
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
8
States / cities
San Francisco, California • Chicago, Illinois • Indianapolis, Indiana + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced May 21, 2026, 10:12 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Alzheimer Disease, Parkinson Disease, Inflammation
Interventions
GE180 PET Scan
Drug
Lead sponsor
Aaron Ritter, MD
Other
Eligibility
55 Years to 90 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated May 23, 2023 · Synced May 21, 2026, 10:12 PM EDT
Recruiting Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Small Cell Lung Carcinoma
Interventions
coformulation pembrolizumab/quavonlimab, lenvatinib, MK-4830, coformulation favezelimab/pembrolizumab, R-DXd
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2029
U.S. locations
12
States / cities
Gilbert, Arizona • Atlanta, Georgia • Fort Wayne, Indiana + 7 more
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced May 21, 2026, 10:12 PM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Breast Neoplasms
Interventions
pembrolizumab, paclitaxel, nab-paclitaxel, liposomal doxorubicin, capecitabine, normal saline, dextrose
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
340 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
41
States / cities
Birmingham, Alabama • Tucson, Arizona • Monterey, California + 33 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced May 21, 2026, 10:12 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Parkinson's Disease
Interventions
florbetapir F 18
Drug
Lead sponsor
Avid Radiopharmaceuticals
Industry
Eligibility
60 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 10, 2013 · Synced May 21, 2026, 10:12 PM EDT
Completed Phase 3 Interventional Results available
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 May 21, 2026, 10:12 PM EDT
Completed Phase 1 Interventional Results available
View directory record Official record
Conditions
Pharmacokinetics, Solid Tumor, Carcinoma, Non-Small-Cell Lung, Triple Negative Breast Neoplasms
Interventions
Boserolimab, Pembrolizumab, Pemetrexed, Carboplatin, Nab-paclitaxel
Drug · Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
3
States / cities
Mobile, Alabama • Sarasota, Florida • Germantown, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced May 21, 2026, 10:12 PM EDT
Recruiting Phase 2 Interventional
View directory record Official record
Conditions
Parkinson Disease, Parkinson, Idiopathic Parkinson Disease, Early Parkinson Disease (Early PD), Parkinson Disease, Idiopathic
Interventions
NEU-411, Placebo
Drug · Other
Lead sponsor
Neuron23 Inc.
Industry
Eligibility
40 Years to 80 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
45
States / cities
Sun City, Arizona • Little Rock, Arkansas • Fresno, California + 40 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced May 21, 2026, 10:12 PM EDT
Completed Phase 2 Interventional
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 17, 2021 · Synced May 21, 2026, 10:12 PM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis (ALS), Parkinson Disease (PD), Alzheimer Disease (AD), Multiple Sclerosis (MS)
Interventions
18F-OP-801
Drug
Lead sponsor
Ashvattha Therapeutics, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
3
States / cities
San Francisco, California • Stanford, California • Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated May 1, 2025 · Synced May 21, 2026, 10:12 PM EDT
Active, not recruiting Phase 3 Interventional Results available
View directory record Official record
Conditions
Head and Neck Neoplasms
Interventions
Pembrolizumab 200 mg, Radiotherapy 60 Gray, Radiotherapy 66 Gray, Radiotherapy 70 Gray, Cisplatin 100 mg/m^2
Biological · Radiation · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
714 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
68
States / cities
La Jolla, California • Los Angeles, California • Newport Beach, California + 56 more
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced May 21, 2026, 10:12 PM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Lung Neoplasms, Carcinoma, Non-Small-Cell Lung
Interventions
Pembrolizumab, Olaparib, Placebo for olaparib, Etoposide, Carboplatin, Cisplatin, Paclitaxel, Pemetrexed, Thoracic Radiotherapy, Durvalumab
Biological · Drug · Radiation
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
870 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2029
U.S. locations
33
States / cities
Mobile, Alabama • Jonesboro, Arkansas • Fullerton, California + 28 more
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced May 21, 2026, 10:12 PM EDT