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ClinicalTrials.gov public records Last synced Oct 16, 2026, 6:15 AM EDT

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

Showing 769–792 of 855 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Proton beam radiation therapy. Clear all
Recruiting Not applicable Interventional

Proton Therapy in the Treatment of Liver Metastases

NCT01697371
View directory record Official record
Conditions
Liver Metastases
Interventions
Proton, Proton Radiation
Radiation
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2033
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Jun 5, 2026 · Synced Oct 16, 2026, 6:15 AM EDT
Not listed Phase 2 Interventional Results available

PET-Directed Therapy With Pembrolizumab and Combination Chemotherapy in Treating Patients With Previously Untreated Classical Hodgkin Lymphoma

NCT03226249
View directory record Official record
Conditions
Classical Hodgkin Lymphoma, Lymphocyte-Depleted Classical Hodgkin Lymphoma, Lymphocyte-Rich Classical Hodgkin Lymphoma, Mixed Cellularity Classical Hodgkin Lymphoma, Nodular Sclerosis Classical Hodgkin Lymphoma
Interventions
Computed Tomography, Dacarbazine, Doxorubicin Hydrochloride, Fludeoxyglucose F-18, Laboratory Biomarker Analysis, Pembrolizumab, Positron Emission Tomography, Vinblastine Sulfate
Procedure · Drug · Radiation + 2 more
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
4
States / cities
Stanford, California • Atlanta, Georgia • Chicago, Illinois + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2023 · Synced Oct 16, 2026, 6:15 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

PPI and Clopidogrel Response

NCT01170533
View directory record Official record
Conditions
Drug Interaction
Interventions
omeprazole and pantoprazole
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 6, 2012 · Synced Oct 16, 2026, 6:15 AM EDT
Completed No phase listed Observational

Proton Pump Inhibitor (PPI) Responsive Eosinophilic Esophagitis EoE: Gastroesophageal Reflux Disease (GERD) or Eosinophilic Esophagitis (EoE)?

NCT01865825
View directory record Official record
Conditions
Erosive Esophagitis
Interventions
Esophageal Barium Xray
Radiation
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 22, 2017 · Synced Oct 16, 2026, 6:15 AM EDT
Recruiting Not applicable Interventional

Local Control, Quality of Life and Toxicities in Adults With Benign or Indolent Brain Tumors Undergoing Proton Radiation Therapy

NCT03286335
View directory record Official record
Conditions
Brain Tumor
Interventions
Proton Radiation
Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Oct 16, 2026, 6:15 AM EDT
No Longer Available No phase listed Expanded access

F18 DCFPyL PET/CT in Imaging Participants With Recurrent Prostate Cancer

NCT03501940
View directory record Official record
Conditions
Prostate Adenocarcinoma, PSA Level Greater Than 0.2, PSA Level Greater Than or Equal to Two, PSA Progression, Recurrent Prostate Carcinoma
Interventions
Computed Tomography, Fluorine F 18 DCFPyL, Laboratory Biomarker Analysis, Positron Emission Tomography
Procedure · Radiation · Other
Lead sponsor
Andrei Iagaru
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jan 21, 2022 · Synced Oct 16, 2026, 6:15 AM EDT
Terminated Phase 4 Interventional

Lansoprazole Preventing Gastroduodenal Stress Ulcerations

NCT00220909
View directory record Official record
Conditions
Patients Undergoing Elective Coronary Artery Bypass Graft
Interventions
Lansoprazole
Drug
Lead sponsor
Temple University
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 11, 2008 · Synced Oct 16, 2026, 6:15 AM EDT
Completed Phase 4 Interventional

Role of Pain Modulation in GERD Patients Who Failed Standard Dose Proton Pump Inhibitors (PPI)

NCT00251732
View directory record Official record
Conditions
Gastroesophageal Reflux Disease
Interventions
Standard dose (once daily) PPI plus low-dose antidepressant, Double dose PPI plus evening placebo, Rabeprazole , placebo, placebo
Drug
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 75 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 19, 2010 · Synced Oct 16, 2026, 6:15 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Proton Pump Inhibitor (PPI, Rabeprazole) Effect On Tablet Formulation Of Palbociclib

NCT03220191
View directory record Official record
Conditions
Healthy Volunteer
Interventions
Palbociclib, Rabeprazole
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 10, 2017 · Synced Oct 16, 2026, 6:15 AM EDT
Completed Not applicable Interventional Results available

Proton Beam Radiation Therapy in Treating Young Patients Who Have Undergone Biopsy or Surgery for Medulloblastoma or Pineoblastoma

NCT00105560
View directory record Official record
Conditions
Brain and Central Nervous System Tumors, Long-term Effects Secondary to Cancer Therapy in Children
Interventions
radiation therapy
Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
3 Years to 21 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 28, 2021 · Synced Oct 16, 2026, 6:15 AM EDT
Completed Phase 2 Interventional Results available

Fluciclovine F18 PET/CT Imaging in Assessing Hormone-Naive Men With Prostate Cancer That Has Spread to the Bone

NCT03707184
View directory record Official record
Conditions
Metastatic Prostate Carcinoma, Prostate Carcinoma Metastatic in the Bone, Stage IV Prostate Cancer
Interventions
Computed Tomography, Fluciclovine F18, Positron Emission Tomography
Procedure · Drug
Lead sponsor
University of Utah
Other
Eligibility
Male only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Nov 29, 2024 · Synced Oct 16, 2026, 6:15 AM EDT
Completed Phase 1 Interventional

Sunitinib Malate in Treating Patients With Unresectable or Metastatic Kidney Cancer or Other Advanced Solid Tumors

NCT00499135
View directory record Official record
Conditions
Adult Solid Neoplasm, Clear Cell Renal Cell Carcinoma, Recurrent Renal Cell Carcinoma, Stage III Renal Cell Cancer, Stage IV Renal Cell Cancer
Interventions
Computed Tomography, Fluorothymidine F-18, Laboratory Biomarker Analysis, Pharmacological Study, Positron Emission Tomography, Sunitinib Malate
Other · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 10, 2017 · Synced Oct 16, 2026, 6:15 AM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Study of Proton Pump Inhibitors (PPI) to Prevent Strictures After Gastric Bypass Surgery

NCT00361985
View directory record Official record
Conditions
Anastomotic Stricture, Morbid Obesity
Interventions
Esomeprazole
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 60 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced Oct 16, 2026, 6:15 AM EDT
Completed Phase 1 Interventional

Ranibizumab in Combination With Proton Beam Irradiation for Choroidal Melanoma

NCT00765921
View directory record Official record
Conditions
Choroidal Melanoma
Interventions
ranibizumab
Drug
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 2, 2016 · Synced Oct 16, 2026, 6:15 AM EDT
Active, not recruiting Phase 2 Interventional

Hearing Outcomes Using Fractionated Proton Radiation Therapy for Vestibular Schwannoma

NCT01199978
View directory record Official record
Conditions
Vestibular Schwannoma, Acoustic Neuroma
Interventions
Fractionated proton radiation, Losartan
Radiation · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 16, 2026, 6:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cobalamin Absorption From Fortified Food

NCT01399164
View directory record Official record
Conditions
Vitamin B-12 Deficiency, Achlorhydria
Interventions
14C-B12 fortified bread
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
60 Years and older
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Oct 22, 2013 · Synced Oct 16, 2026, 6:15 AM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Use of Hyperpolarized Xenon Gas for Lung Imaging in Children and Adults

NCT02272049
View directory record Official record
Conditions
Respiratory Disorders
Interventions
Hyperpolarized 129 Xenon
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
6 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2029
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Oct 16, 2026, 6:15 AM EDT
Active, not recruiting Not applicable Interventional

RefleXion PET/CT Imaging Performance in Patients With Various Malignancies

NCT05844306
View directory record Official record
Conditions
Hematopoietic and Lymphoid System Neoplasm, Malignant Solid Neoplasm
Interventions
Computed Tomography, Fludeoxyglucose F-18, Medical Device Usage and Evaluation, Positron Emission Tomography
Procedure · Other · Device
Lead sponsor
City of Hope Medical Center
Other
Eligibility
21 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 16, 2026, 6:15 AM EDT
Completed Early Phase 1 Interventional

PSMA PET/MRI or PSMA PET/CT for Evaluation of Liver Cancer

NCT04310540
View directory record Official record
Conditions
Hepatocellular Carcinoma
Interventions
Biopsy, Computed Tomography, Gallium Ga 68 Gozetotide, Magnetic Resonance Imaging, Positron Emission Tomography
Procedure · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 16, 2026, 6:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dietary Supplement With and Without a Probiotic

NCT04433208
View directory record Official record
Conditions
Healthy Adult Subjects
Interventions
Complex oligosaccharide, Probiotic, PPI, H2 Blocker
Dietary Supplement · Other
Lead sponsor
Prolacta Bioscience
Industry
Eligibility
18 Years to 44 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated Mar 18, 2025 · Synced Oct 16, 2026, 6:15 AM EDT
Not yet recruiting Phase 3 Interventional

Personalized vs Standard of Care Treatment for Helicobacter Pylori Eradication Among Veterans

NCT07104318
View directory record Official record
Conditions
Helicobacter Pylori
Interventions
Bismuth quadruple therapy with optimized proton pump inhibitor (PPI), Bismuth quadruple therapy with standard proton pump inhibitor (PPI), Clarithromycin triple therapy with optimized proton pump inhibitor (PPI), Clarithromycin triple therapy with standard PPI, Standard bismuth quadruple therapy
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2030
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Oct 9, 2026 · Synced Oct 16, 2026, 6:15 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Study of RO7890597 in Healthy Adult Volunteers

NCT07797478
View directory record Official record
Conditions
Healthy Volunteers
Interventions
RO7890597, Placebo, Rabeprazole, Itraconazole
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 16, 2026, 6:15 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate Relative Bioavailability, Proton Pump Inhibitor (PPI) (Rabeprazole) Effect, Food Effect and Particle Size Effect of New Acalabrutinib Tablet in Healthy Subjects

NCT04488016
View directory record Official record
Conditions
Bioavailability, B-cell Lymphoid Cancer
Interventions
Treatment A- Part 1, Treatment B- Part 1, Treatment C - Part 1, Treatment D- Part 1, Treatment A-Part 2, Treatment B - Part 2, Treatment C - Part 2, Treatment D - Part 2
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 55 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced Oct 16, 2026, 6:15 AM EDT
Completed Not applicable Interventional

Proton Radiation for Resectable Carcinoma of the Pancreas

NCT00763516
View directory record Official record
Conditions
Pancreatic Cancer
Interventions
Proton radiation and chemotherapy
Radiation
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 6, 2017 · Synced Oct 16, 2026, 6:15 AM EDT