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ClinicalTrials.gov public records Last synced Oct 29, 2026, 1:36 AM EDT

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Showing 697–720 of 868 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Proton Clear all
Recruiting No phase listed Observational Accepts healthy volunteers

Serologic Response to Pneumococcal Vaccination Among Esophageal Cancer Patients With High Grade Lymphopenia After Chemoradiation

NCT06181656
View directory record Official record
Conditions
Pneumococcal Vaccine, Esophageal Cancer, Lymphopenia, Chemoradiation
Interventions
Pneumonia vaccine
Biological
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 20, 2026 · Synced Oct 29, 2026, 1:36 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Neoadjuvant Accelerated Short Course Radiation Therapy With Proton Beam and Capecitabine for Resectable Pancreatic Cancer

NCT00438256
View directory record Official record
Conditions
Pancreatic Cancer
Interventions
Proton Beam Radiation, Capecitabine
Procedure · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 23, 2019 · Synced Oct 29, 2026, 1:36 AM EDT
Terminated Phase 2 Interventional Results available

The UPPROACH (Upfront Intensity Modulated Proton Beam Therapy) Approach

NCT04527900
View directory record Official record
Conditions
Endometrial Cancer
Interventions
carboplatin and paclitaxel, pelvic IMPT (Intensity Modulated Proton Therapy)
Drug · Radiation
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older · Female only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
4
States / cities
Baltimore, Maryland • Columbia, Maryland • Glen Burnie, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Oct 29, 2026, 1:36 AM EDT
Not listed No phase listed Observational

Study of Quality of Life for Prostate Proton Therapy

NCT00489814
View directory record Official record
Conditions
Prostate Cancer
Interventions
Questionnaire
Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Male only
Enrollment
1,125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 7, 2020 · Synced Oct 29, 2026, 1:36 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Fruquintinib Food Effect and Proton Pump Inhibitor Study

NCT04645940
View directory record Official record
Conditions
Drug Interaction, Food-drug Interaction
Interventions
fruquintinib with food/fruquintinib without food/fruquintinib with rabeprazole, fruquintinib without food/fruquintinib with food/fruquintinib with rabeprazole
Drug
Lead sponsor
Hutchison Medipharma Limited
Industry
Eligibility
18 Years to 55 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated Jun 18, 2021 · Synced Oct 29, 2026, 1:36 AM EDT
Completed Phase 3 Interventional Results available

Study of Acid Reflux in Asthma

NCT00069823
View directory record Official record
Conditions
Asthma, Lung Diseases, Lung Diseases, Obstructive
Interventions
Esomeprazole, Placebo proton pump inhibitor
Drug
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older
Enrollment
403 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
20
States / cities
Birmingham, Alabama • San Diego, California • Denver, Colorado + 17 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2012 · Synced Oct 29, 2026, 1:36 AM EDT
Terminated No phase listed Observational

Photon/Proton Radiation Therapy for Oropharyngeal Cancers

NCT00797446
View directory record Official record
Conditions
Oropharyngeal Cancers
Interventions
Not listed
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 7, 2017 · Synced Oct 29, 2026, 1:36 AM EDT
Completed Phase 2 Interventional Results available

68Ga PSMA PET Imaging for the Treatment of Advanced Liver Cancer

NCT05176223
View directory record Official record
Conditions
Advanced Hepatocellular Carcinoma, Stage III Hepatocellular Carcinoma AJCC v8, Stage IV Hepatocellular Carcinoma AJCC v8, Unresectable Hepatocellular Carcinoma
Interventions
Computed Tomography, Gallium Ga 68 Gozetotide, Positron Emission Tomography
Procedure · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 29, 2026, 1:36 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of PVP001, PVP002, and PVP003 in Healthy Adults and PVP001 and PVP002 in Adults With Celiac Disease

NCT03701555
View directory record Official record
Conditions
Digestive System Disease
Interventions
PvP001 placebo, PvP001 100 mg, PvP001 300 mg, PvP001 900 mg, Maximum Feasible Dose (MFD) of PvP002, Maximum Tolerated Dose (MTD) of PvP001, MTD of PvP001 following 7 days of PPI treatment, PvP002 placebo, PvP001 600 mg, PvP003 placebo, PvP003, PvP003 150 mg
Other · Drug
Lead sponsor
Millennium Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Anaheim, California
Source: ClinicalTrials.gov public record
Updated Apr 4, 2023 · Synced Oct 29, 2026, 1:36 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Drug Interaction With Proton Pump Inhibitors for Nifedipine ER Tablets

NCT03100838
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Nifedipine 60 MG Extended Release Oral Tablet, omeprazole/sodium bicarbonate, SmartPill (TM)
Drug · Device
Lead sponsor
Food and Drug Administration (FDA)
Federal
Eligibility
18 Years to 55 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 16, 2019 · Synced Oct 29, 2026, 1:36 AM EDT
Completed Phase 2 Interventional Results available

AMT-PET in Monitoring Telotristat Etiprate Treatment in Participants With MetastaticNeuroendocrine Neoplasm

NCT03453489
View directory record Official record
Conditions
Carcinoid Syndrome, Metastatic Nonfunctional Well Differentiated Neuroendocrine Neoplasm
Interventions
Carbon C 11 Alpha-methyltryptophan, Laboratory Biomarker Analysis, Positron Emission Tomography, Telotristat Etiprate
Other · Procedure · Drug
Lead sponsor
Barbara Ann Karmanos Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 10, 2025 · Synced Oct 29, 2026, 1:36 AM EDT
Completed Phase 3 Interventional Results available

Efficacy of Lansoprazole in Chronic Post Nasal Drip

NCT00335283
View directory record Official record
Conditions
Larynx Disease
Interventions
Lansoprazole Tablet, PH and impedence testing, manometry, lansoprazole, placebo
Drug · Procedure
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 21, 2012 · Synced Oct 29, 2026, 1:36 AM EDT
Recruiting Not applicable Interventional

PET/CT Imaging to Evaluate Cardiac Radiation Damage in Patients With Lung or Esophageal Cancer, EUCLID Trial

NCT05775939
View directory record Official record
Conditions
Lung Carcinoma, Esophageal Carcinoma
Interventions
Fludeoxyglucose F-18, Positron Emission Tomography, Computed Tomography, Questionnaire Administration
Other · Procedure
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Oct 29, 2026, 1:36 AM EDT
Completed Phase 2Phase 3 Interventional Results available

68Ga-PSMA-11 PET/MRI in Finding Tumors in Patients With Intermediate or High-Risk Prostate Cancer Undergoing Surgery

NCT02678351
View directory record Official record
Conditions
Stage II Prostate Adenocarcinoma, Stage III Prostate Adenocarcinoma
Interventions
68Ga-PSMA-11, Magnetic resonance imaging (MRI), Positron Emission Tomography (PET)
Drug · Procedure
Lead sponsor
Andrei Iagaru
Other
Eligibility
18 Years and older · Male only
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Mar 4, 2022 · Synced Oct 29, 2026, 1:36 AM EDT
Completed Not applicable Interventional Results available

Free-Base Nicotine or Nicotine Salt e-Liquids in Current E-Cigarette Smokers, PeloPET Study

NCT05455086
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Cigarette Smoking, Computed Tomography, Positron Emission Tomography, Questionnaire Administration
Behavioral · Procedure · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years to 50 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Oct 29, 2026, 1:36 AM EDT
Terminated No phase listed Observational

Effect of Acid Blockade on Microbiota and Inflammation in Cystic Fibrosis (CF)

NCT02769637
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
PPI treatment
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
10 Years to 21 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
2
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 27, 2018 · Synced Oct 29, 2026, 1:36 AM EDT
Terminated Phase 2 Interventional Results available

Proton Radiotherapy for Extremity Soft Tissue Sarcoma

NCT01561495
View directory record Official record
Conditions
Soft Tissue Sarcoma of the Extremities
Interventions
Proton Therapy
Radiation
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 6, 2019 · Synced Oct 29, 2026, 1:36 AM EDT
Recruiting Phase 2 Interventional

Selective Adjuvant Therapy for HPV-mediated Oropharynx SCCs Based on Residual Circulating Tumor DNA Levels (SAVAL)

NCT06088381
View directory record Official record
Conditions
Head and Neck Cancer, Head and Neck Squamous Cell Carcinoma, Oropharynx Cancer, Oropharynx Squamous Cell Carcinoma, HPV Positive Oropharyngeal Squamous Cell Carcinoma
Interventions
Experimental Observation, Observation per Standard of Care, Adjuvant Treatment per Standard of Care, Circulating Tumor DNA test (ctDNA test)
Other · Radiation · Diagnostic Test
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
5
States / cities
Baltimore, Maryland • Bel Air, Maryland • Columbia, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 10, 2025 · Synced Oct 29, 2026, 1:36 AM EDT
Completed Phase 2 Interventional Results available

A Clinical Trial of Endoscopic Surgery Followed by Chemotherapy and Proton Radiation for the Treatment of Tumors in the Sinus and Nasal Passages

NCT03274414
View directory record Official record
Conditions
Paranasal Sinus Cancer, Nasal Cavity Tumor, Nasal Cavity Adenocarcinoma
Interventions
Cisplatin, Adjuvant Proton Radiotherapy, Endoscopic Resection, cisplatin and etoposide
Drug · Radiation · Procedure
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
5
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 2 more
Source: ClinicalTrials.gov public record
Updated May 16, 2025 · Synced Oct 29, 2026, 1:36 AM EDT
Recruiting Phase 2 Interventional

Mosunetuzumab and Polatuzumab Vedotin for the Treatment of Patients With Relapsed or Refractory Grade 1-3a Follicular Lymphoma

NCT06453044
View directory record Official record
Conditions
Recurrent Grade 1 Follicular Lymphoma, Recurrent Grade 2 Follicular Lymphoma, Recurrent Grade 3a Follicular Lymphoma, Refractory Grade 1 Follicular Lymphoma, Refractory Grade 2 Follicular Lymphoma, Refractory Grade 3a Follicular Lymphoma
Interventions
Biospecimen Collection, Computed Tomography, Magnetic Resonance Imaging, Mosunetuzumab, Polatuzumab Vedotin, Positron Emission Tomography, Questionnaire Administration
Procedure · Biological · Drug + 1 more
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
2
States / cities
Duarte, California • Irvine, California
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Oct 29, 2026, 1:36 AM EDT
Recruiting Phase 2 Interventional

GCCC 2578 Randomized Photon vs Proton RT for Newly Diagnosed Gynecologic Primaries

NCT07415681
View directory record Official record
Conditions
Gynaecologic Cancer, Cervical Cancer, Radiation Therapy
Interventions
Volume Modulated Arc Therapy (VMAT), Intensity Modulated Proton Therapy (IMPT)
Radiation
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older · Female only
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2033
U.S. locations
5
States / cities
Baltimore, Maryland • Bel Air, Maryland • Columbia, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 29, 2026, 1:36 AM EDT
Withdrawn Phase 2 Interventional

Hyperpolarized Carbon C 13 Pyruvate Magnetic Resonance Spectroscopic Imaging in Predicting Treatment Response in Patients With Prostate Cancer

NCT03581500
View directory record Official record
Conditions
Prostate Adenocarcinoma, PSA Level Greater Than Ten, Stage IIB Prostate Cancer AJCC v8, Stage III Prostate Cancer AJCC v8, Stage IIIA Prostate Cancer AJCC v8, Stage IIIB Prostate Cancer AJCC v8, Stage IIIC Prostate Cancer AJCC v8, Stage IV Prostate Cancer AJCC v8, Stage IVA Prostate Cancer AJCC v8, Stage IVB Prostate Cancer AJCC v8
Interventions
Hyperpolarized Carbon C 13 Pyruvate, Magnetic Resonance Spectroscopic Imaging
Drug · Procedure
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 23, 2025 · Synced Oct 29, 2026, 1:36 AM EDT
Active, not recruiting Phase 3 Interventional

Intensity-Modulated Proton Beam Therapy or Intensity-Modulated Photon Therapy in Treating Patients With Stage III-IVB Oropharyngeal Cancer

NCT01893307
View directory record Official record
Conditions
Stage III Oropharyngeal Squamous Cell Carcinoma AJCC v7, Stage IVA Oropharyngeal Squamous Cell Carcinoma AJCC v7, Stage IVB Oropharyngeal Squamous Cell Carcinoma AJCC v7
Interventions
Intensity-Modulated Radiation Therapy, Laboratory Biomarker Analysis, Photon Beam Radiation Therapy, Proton Beam Radiation Therapy, Quality-of-Life Assessment
Radiation · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
440 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2031
U.S. locations
22
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Gainesville, Florida + 17 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2026 · Synced Oct 29, 2026, 1:36 AM EDT
Withdrawn Phase 2 Interventional

Efficacy Study of Botulinum Toxin (BOTOX) Injections to Treat Vocal Fold Granulomas

NCT01678053
View directory record Official record
Conditions
Contact Ulcer of Vocal Folds, Granuloma of Vocal Cords, Granuloma, Laryngeal, Granuloma
Interventions
onabotulinumtoxinA, omeprazole (proton pump inhibitor)
Drug
Lead sponsor
Phillip Song, MD
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 28, 2017 · Synced Oct 29, 2026, 1:36 AM EDT