Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
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 are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 2, 2026, 4:25 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 863 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Proton Clear all
Active, not recruiting Phase 1Phase 2 Interventional

A Phase I/II Study of Hypofractionated Proton Therapy for Stage II-III Non-Small Cell Lung Cancer

NCT01770418
View directory record Official record
Conditions
Lung Neoplasms
Interventions
Radiation with Concurrent Chemotherapy
Radiation
Lead sponsor
Proton Collaborative Group
Network
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
6
States / cities
Jacksonville, Florida • Warrenville, Illinois • Baltimore, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Sep 2, 2026, 4:25 PM EDT
Completed Phase 2 Interventional

Multi-Center Study of Panosyl-Isomaltooligosaccharides Adjunctive to PPI Therapy to Treat GERD

NCT05556824
View directory record Official record
Conditions
Gastroesophageal Reflux
Interventions
MHS-1031, Placebo
Drug · Other
Lead sponsor
Microbiome Health Sciences
Industry
Eligibility
18 Years to 75 Years
Enrollment
255 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
18
States / cities
Phoenix, Arizona • Los Angeles, California • Lake City, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Jul 26, 2026 · Synced Sep 2, 2026, 4:25 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess Pharmacokinetics (PK) of Brensocatib Alone and With Multiple Doses of Rifampin or Esomeprozole in Healthy Participants

NCT05826574
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Brensocatib, Rifampin, Esomeprazole
Drug
Lead sponsor
Insmed Incorporated
Industry
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Aug 20, 2023 · Synced Sep 2, 2026, 4:25 PM EDT
Active, not recruiting Not applicable Interventional Results available

Proton Beam Therapy in the Treatment of Esophageal Cancer

NCT03482791
View directory record Official record
Conditions
Esophagus Cancer, Esophageal Cancer, Cancer of the Esophagus
Interventions
Proton beam therapy, Patient-Reported Outcome Measures
Radiation · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Sep 2, 2026, 4:25 PM EDT
Active, not recruiting Phase 2 Interventional Results available

An Open-Label Phase II Study of Nivolumab or Nivolumab/Ipilimumab in Adult Participants With Progessive/ Recurrent Meningioma

NCT02648997
View directory record Official record
Conditions
Meningiomas
Interventions
Nivolumab - 240 mg, Ipilimumab - 1 mg/kg, Nivolumab - 480 mg, Nivolumab - 3 mg/kg, External Beam RT, Nivolumab - 1 mg/kg, Ipilimumab - 3 mg/kg
Drug · Radiation
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 2, 2026, 4:25 PM EDT
Completed No phase listed Observational

Cardiotoxicity in Breast Cancer Patients Treated With Proton or Photon Radiotherapy: A RadComp Companion Study

NCT04361240
View directory record Official record
Conditions
Breast Cancer, Cardiotoxicity
Interventions
Proton vs Photon Radiation
Radiation
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
21 Years and older
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
6
States / cities
Birmingham, Alabama • Warrenville, Illinois • Baltimore, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Sep 2, 2026, 4:25 PM EDT
Active, not recruiting Phase 2 Interventional

Proton Beam Therapy (PBT) Versus Intensity-Modulated Radiation Therapy (IMRT) Trial

NCT01512589
View directory record Official record
Conditions
Esophageal Cancer
Interventions
Proton Beam Therapy (PBT), Intensity Modulated Radiation Therapy (IMRT), Questionnaires
Radiation · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 2, 2026, 4:25 PM EDT
Completed No phase listed Observational

Primary Hyperoxaluria Mutation Genotyping/Phenotyping

NCT02340689
View directory record Official record
Conditions
Primary Hyperoxaluria
Interventions
Genetic Analysis
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
1 Day and older
Enrollment
1,235 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 18, 2019 · Synced Sep 2, 2026, 4:25 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Fundic Gland Polyps and Proton Pump Inhibitor (PPI) Drugs

NCT01130363
View directory record Official record
Conditions
Fundic Gland Polyps
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 85 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 1, 2012 · Synced Sep 2, 2026, 4:25 PM EDT
Terminated No phase listed Observational

Feasibility Study of Tumor Blood Flow Measurement by Detection of Positron Activation Post Proton Therapy (DS01)

NCT01987193
View directory record Official record
Conditions
Brain Cancer, Prostate Cancer, Lung Cancer
Interventions
Not listed
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated May 28, 2018 · Synced Sep 2, 2026, 4:25 PM EDT
Recruiting Phase 2 Interventional

Tafasitamab and Rituximab for Front-Line Treatment of Post-Transplant Lymphoproliferative Disorder

NCT05786040
View directory record Official record
Conditions
Monomorphic B-Cell Post-Transplant Lymphoproliferative Disorder, Polymorphic Post-Transplant Lymphoproliferative Disorder
Interventions
Biopsy, Biospecimen Collection, Computed Tomography, Positron Emission Tomography, Rituximab, Tafasitamab
Procedure · Biological
Lead sponsor
Timothy Voorhees
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
4
States / cities
New Brunswick, New Jersey • Hillsborough, North Carolina • Columbus, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Sep 2, 2026, 4:25 PM EDT
Recruiting Not applicable Interventional

Evaluation of Radiobiological Effects in Skin Toxicities Head and Neck Cancer Patients With PBS Proton Therapy

NCT06183268
View directory record Official record
Conditions
Head and Neck Cancer, Head and Neck Squamous Cell Carcinoma, Head and Neck Carcinoma
Interventions
Spot Delete
Radiation
Lead sponsor
Covenant Health Cancer Center
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 7, 2025 · Synced Sep 2, 2026, 4:25 PM EDT
Recruiting No phase listed Observational

Evaluation of 18F-TFB PET/CT Scan in Patients With Differentiated Thyroid Cancer

NCT05575440
View directory record Official record
Conditions
Differentiated Thyroid Gland Carcinoma, Thyroid Gland Follicular Carcinoma, Thyroid Gland Papillary Carcinoma
Interventions
Computed Tomography, Fluorine F 18 Tetrafluoroborate, Positron Emission Tomography, Survey Administration
Procedure · Radiation · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 2, 2026, 4:25 PM EDT
Completed Phase 2 Interventional Results available

Induction TPN Followed by Nivolumab With Radiation in Locoregionally Advanced Laryngeal and Hypopharyngeal Cancer

NCT03894891
View directory record Official record
Conditions
Head and Neck Cancer
Interventions
Nivolumab, Cisplatin, Docetaxel, Intensity-modulated radiotherapy
Drug · Radiation
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
4
States / cities
Atlanta, Georgia • Boston, Massachusetts • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2023 · Synced Sep 2, 2026, 4:25 PM EDT
Recruiting Not applicable Interventional

Spectroscopic MRI Guided Proton Therapy in Assessing Metabolic Change in Pediatric Patients With Brain Tumors

NCT04908709
View directory record Official record
Conditions
Malignant Brain Glioma
Interventions
Magnetic Resonance Spectroscopic Imaging, Proton Therapy
Procedure · Device
Lead sponsor
Emory University
Other
Eligibility
Up to 21 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2030
U.S. locations
3
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Sep 2, 2026, 4:25 PM EDT
Not yet recruiting No phase listed Observational

UPRIGHT-PRO: Prospective Development Study of Upright Proton Therapy

NCT07708636
View directory record Official record
Conditions
Proton Therapy
Interventions
Standard-of-Care Proton Therapy
Radiation
Lead sponsor
Stanford University
Other
Eligibility
Not listed
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
2
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 2, 2026, 4:25 PM EDT
Active, not recruiting Phase 2 Interventional

Proton Beam Therapy for Chordoma Patients

NCT00496119
View directory record Official record
Conditions
Chordoma
Interventions
Proton Beam Therapy, Photon Beam Therapy
Radiation
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Sep 2, 2026, 4:25 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Regional Phenotyping of CF and Non-CF Bronchiectasis

NCT04793867
View directory record Official record
Conditions
Cystic Fibrosis, Non-CF Bronchiectasis
Interventions
Xenon
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
5 Years to 100 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 19, 2025 · Synced Sep 2, 2026, 4:25 PM EDT
Completed Phase 1Phase 2 Interventional

Proton Beam Radiation Therapy in Treating Patients With Low Grade Gliomas

NCT01024907
View directory record Official record
Conditions
Adult Brain Tumor, Adult Brain Stem Glioma, Adult Diffuse Astrocytoma, Adult Ependymoma, Adult Grade II Meningioma, Adult Melanocytic Lesion, Adult Meningeal Hemangiopericytoma, Adult Mixed Glioma, Adult Oligodendroglioma, Adult Pineal Gland Astrocytoma, Adult Pineocytoma, Recurrent Adult Brain Tumor
Interventions
proton beam radiation therapy, quality-of-life assessment, questionnaire administration
Radiation · Procedure · Other
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 9, 2020 · Synced Sep 2, 2026, 4:25 PM EDT
Recruiting Phase 2 Interventional

Proton Beam Radiation Therapy After Treatment for Resected N2 Non-Small Cell Lung Cancer

NCT06008730
View directory record Official record
Conditions
Resectable Lung Non-Small Cell Carcinoma
Interventions
Biospecimen Collection, Proton Beam Radiation Therapy, Radiology, Treatment Planning
Procedure · Radiation · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 2, 2026, 4:25 PM EDT
Recruiting Phase 2Phase 3 Interventional Accepts healthy volunteers

Comparison of Early Proton Pump Inhibitor Initiation Versus Usual Care on Acute Kidney Injury in Hemorrhagic Shock Patients

NCT06531642
View directory record Official record
Conditions
Acute Kidney Injury
Interventions
Protonix (Pantoprazole) 40 mg q 12 hrs for 2 days, Protonix (pantoprazole) 40 mg q 24 hrs for 2 days
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Sep 2, 2026, 4:25 PM EDT
Recruiting Phase 3 Interventional

Conventionally Fractionated vs. Hypofractionated Comprehensive Nodal Irradiation for Breast Cancer Using Pencil Beam Scanning Proton Therapy

NCT05856773
View directory record Official record
Conditions
Breast Cancer
Interventions
Proton Therapy
Radiation
Lead sponsor
Proton Collaborative Group
Network
Eligibility
19 Years and older · Female only
Enrollment
276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2041
U.S. locations
9
States / cities
Scottsdale, Arizona • San Diego, California • Jacksonville, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 2, 2026, 4:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Which Supraesophageal Reflux Symptoms Reliably Respond to Proton-Pump-Inhibitor (PPI) Therapy

NCT00170001
View directory record Official record
Conditions
Gastroesophageal Reflux
Interventions
Nexium, Sugar Pill
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 14, 2011 · Synced Sep 2, 2026, 4:25 PM EDT
Completed Not applicable Interventional Results available

A Phase II Trial of Preoperative Proton Therapy in Soft-tissue Sarcomas of the Extremities and Body Wall

NCT01819831
View directory record Official record
Conditions
Soft Tissue Sarcoma
Interventions
proton radiation, surgery (wide local excision; limb preservation surgery)
Radiation · Procedure
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years to 98 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2022
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Aug 22, 2023 · Synced Sep 2, 2026, 4:25 PM EDT