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ClinicalTrials.gov public records Last synced Sep 30, 2026, 1:27 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 155 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Proton beam radiotherapy (PBRT) Clear all
Completed Early Phase 1 Interventional

Concurrent Chemoradiation + 5-FU + Mitomycin-C in Anal Carcinoma

NCT01858025
View directory record Official record
Conditions
Carcinoma of the Anal Canal
Interventions
Pencil Beam scanning Radiation, 5-fluorouracil, Mitomycin-C
Radiation · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2021
U.S. locations
2
States / cities
Boston, Massachusetts • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Sep 30, 2026, 1:27 PM EDT
Completed Early Phase 1 Interventional

Local Control With Reduced-dose Radiotherapy for High-Risk Neuroblastoma

NCT02245997
View directory record Official record
Conditions
Neuroblastoma
Interventions
External beam radiotherapy, proton beam RT
Radiation
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
12 Months to 18 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 29, 2025 · Synced Sep 30, 2026, 1:27 PM EDT
Recruiting Phase 2 Interventional

Treatment of Newly Diagnosed Patient's With Wilm's Tumor Requiring Abdominal Radiation Delivered With Proton Beam Irradiation

NCT04968990
View directory record Official record
Conditions
Wilms Tumor
Interventions
Proton Beam Radiation (PBRT), DD-4A Chemotherapy Regimen, Complete Surgical Resection, Surgical Resection, Partial Nephrectomy
Device · Drug · Procedure
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
Not listed
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2036
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Sep 30, 2026, 1:27 PM EDT
Not listed No phase listed Observational

Quality of Life Study for Prostate Cancer Patients

NCT00561444
View directory record Official record
Conditions
Prostate Cancer
Interventions
Questionnaire
Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
1,051 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2020
U.S. locations
3
States / cities
Voorhees Township, New Jersey • Albuquerque, New Mexico • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 14, 2020 · Synced Sep 30, 2026, 1:27 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 12, 2026 · Synced Sep 30, 2026, 1:27 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Image-Guided, Intensity-Modulated Photon or Proton Beam Radiation Therapy in Treating Patients With Stage II-IIIB Non-small Cell Lung Cancer

NCT01629498
View directory record Official record
Conditions
Recurrent Lung Non-Small Cell Carcinoma, Stage II Non-Small Cell Lung Cancer AJCC v7, Stage IIA Non-Small Cell Lung Carcinoma AJCC v7, Stage IIB Non-Small Cell Lung Carcinoma AJCC v7, Stage IIIA Non-Small Cell Lung Cancer AJCC v7, Stage IIIB Lung Non-Small Cell Cancer AJCC v7
Interventions
Image Guided Radiation Therapy, Intensity-Modulated Radiation Therapy, Laboratory Biomarker Analysis, Photon Beam Radiation Therapy, Proton Beam Radiation Therapy, Questionnaire Administration
Radiation · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Sep 30, 2026, 1:27 PM EDT
Terminated Phase 3 Interventional Results available

Testing the Addition of Targeted Radiation Therapy to Surgery and the Usual Chemotherapy Treatment (Pemetrexed and Cisplatin [or Carboplatin]) for Stage I-IIIA Malignant Pleural Mesothelioma

NCT04158141
View directory record Official record
Conditions
Pleural Biphasic Mesothelioma, Pleural Epithelioid Mesothelioma, Stage I Pleural Malignant Mesothelioma AJCC v8, Stage IA Pleural Malignant Mesothelioma AJCC v8, Stage IB Pleural Malignant Mesothelioma AJCC v8, Stage II Pleural Malignant Mesothelioma AJCC v8, Stage IIIA Pleural Malignant Mesothelioma AJCC v8
Interventions
Carboplatin, Cisplatin, Decortication, Intensity-Modulated Radiation Therapy, Pemetrexed, Pemetrexed Disodium, Pencil beam scanning proton therapy, Pleurectomy
Drug · Procedure · Radiation
Lead sponsor
NRG Oncology
Other
Eligibility
18 Years to 80 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
12
States / cities
Coral Gables, Florida • Chicago, Illinois • Rochester, Minnesota + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Sep 30, 2026, 1:27 PM EDT
Recruiting Early Phase 1 Interventional

Evaluation of Bridging Radiation Therapy Before CAR T-Cell Infusion for the Treatment of Relapsed or Refractory Large B-Cell Lymphoma

NCT05800405
View directory record Official record
Conditions
Recurrent Diffuse Large B-Cell Lymphoma, Refractory Diffuse Large B-Cell Lymphoma
Interventions
Biospecimen Collection, Chimeric Antigen Receptor T-Cell Therapy, Computed Tomography, External Beam Radiation Therapy, Leukapheresis, Magnetic Resonance Imaging, Positron Emission Tomography
Procedure · Biological · Radiation
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 30, 2026, 1:27 PM EDT
Active, not recruiting Not applicable Interventional

Proton Beam Radiation Therapy for Central Nervous System (CNS) Germ Cell Tumors

NCT01049230
View directory record Official record
Conditions
Germ Cell Tumor, Central Nervous System Germ Cell Tumor
Interventions
Proton Beam radiation
Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
3 Years to 25 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2027
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Sep 30, 2026, 1:27 PM EDT
Completed Not applicable Interventional Results available

Study of Hypofractionated Proton Beam Radiation Therapy for Prostate Cancer

NCT00831623
View directory record Official record
Conditions
Prostate Cancer
Interventions
Proton Radiation, Proton
Radiation
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years and older · Male only
Enrollment
167 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2019
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Mar 13, 2023 · Synced Sep 30, 2026, 1:27 PM EDT
Completed Phase 2 Interventional Results available

Observation or Radiation Therapy in Treating Patients With Grade I, Grade II, or Grade III Meningioma

NCT00895622
View directory record Official record
Conditions
Brain and Central Nervous System Tumors
Interventions
54 Gy radiotherapy, 60 Gy radiotherapy
Radiation
Lead sponsor
Radiation Therapy Oncology Group
Network
Eligibility
18 Years and older
Enrollment
244 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2023
U.S. locations
74
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Duarte, California + 62 more
Source: ClinicalTrials.gov public record
Updated Sep 8, 2023 · Synced Sep 30, 2026, 1:27 PM EDT
Active, not recruiting Not applicable Interventional

Proton Pencil Beam Scanning GRID for Treatment of Bulky Tumors

NCT05121545
View directory record Official record
Conditions
Sarcoma, Melanoma
Interventions
Pro-GRID
Radiation
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jan 29, 2026 · Synced Sep 30, 2026, 1:27 PM EDT
Completed Phase 2 Interventional Results available

Positron Emission Tomography and Computed Tomography in Guiding Radiation Therapy for Stage III Non-small Cell Lung Cancer

NCT01507428
View directory record Official record
Conditions
Stage III Lung Non-Small Cell Cancer AJCC v7, Stage IIIA Lung Non-Small Cell Cancer AJCC v7, Stage IIIB Lung Non-Small Cell Cancer AJCC v7
Interventions
18F-Fluoromisonidazole, Carboplatin, Computed Tomography, External Beam Radiation Therapy, Fludeoxyglucose F-18, Image-Guided Adaptive Radiation Therapy, Laboratory Biomarker Analysis, Paclitaxel, Positron Emission Tomography
Drug · Procedure · Radiation + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2022
U.S. locations
29
States / cities
Palo Alto, California • Augusta, Georgia • Chicago, Illinois + 23 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Sep 30, 2026, 1:27 PM EDT
Terminated Early Phase 1 Interventional

Proton Based Cardiac Sparing Accelerated Fractionated RadioTherapy in Unresectable NSCLC

NCT03818776
View directory record Official record
Conditions
Non-Small Cell Lung Cancer
Interventions
Durvalumab, Proton beam therapy RT
Drug · Radiation
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
19 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 15, 2024 · Synced Sep 30, 2026, 1:27 PM EDT
Completed Phase 2 Interventional Results available

A Trial of 15 Fraction vs 25 Fraction Pencil Beam Scanning Proton Radiotherapy After Mastectomy in Patients Requiring Regional Nodal Irradiation

NCT02783690
View directory record Official record
Conditions
Breast Cancer
Interventions
Hypofractionation
Radiation
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
2
States / cities
Scottsdale, Arizona • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 4, 2025 · Synced Sep 30, 2026, 1:27 PM EDT
Not listed Phase 2 Interventional Results available

Proton Therapy in Reducing Toxicity in Anal Cancer

NCT03018418
View directory record Official record
Conditions
Anus Neoplasms
Interventions
Proton therapy, Chemotherapy
Radiation · Drug
Lead sponsor
Jordan Kharofa
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Sep 30, 2026, 1:27 PM EDT
Terminated Not applicable Interventional Results available

Hypofractionated Pencil-Beam Scanning Intensity-modulated Proton Therapy (IMPT) in Recurrent Rectal Cancer

NCT04827732
View directory record Official record
Conditions
Recurrent Rectal Cancer
Interventions
Hypofractionated Pencil-Beam Scanning Intensity-modulated Proton Therapy, MEVION S250i Hyperscan and Adaptive Aperture Proton Therapy Machine
Radiation · Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 29, 2025 · Synced Sep 30, 2026, 1:27 PM EDT
Recruiting No phase listed Observational

Proton Therapy Patient Registry

NCT02986048
View directory record Official record
Conditions
Treatment With Proton Beam Radiation Therapy
Interventions
Proton Beam Therapy
Other
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
Not listed
Enrollment
999 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 9, 2026 · Synced Sep 30, 2026, 1:27 PM EDT
Completed No phase listed Observational

Proton Therapy for Chordomas and/or Chondrosarcomas

NCT00797602
View directory record Official record
Conditions
Chordomas, Chondrosarcomas
Interventions
Not listed
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
189 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 14, 2017 · Synced Sep 30, 2026, 1:27 PM EDT
Terminated Not applicable Interventional Results available

Proton Radiotherapy Plus Sorafenib Versus Sorafenib for Patients With HCC Exceeding San Francisco Criteria

NCT01141478
View directory record Official record
Conditions
Carcinoma, Hepatocellular
Interventions
Proton Beam Radiotherapy, Sorafenib
Radiation · Drug
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years to 80 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Oct 15, 2021 · Synced Sep 30, 2026, 1:27 PM EDT
Terminated Not applicable Interventional

Proton Radiation Therapy in Treating Patients With Prostate Cancer

NCT01045226
View directory record Official record
Conditions
Prostate Cancer
Interventions
Proton Beam Radiation Therapy, Quality-of-Life assessment, Questionnaire Administration
Procedure · Other
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older · Male only
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 1, 2023 · Synced Sep 30, 2026, 1:27 PM EDT
Withdrawn Not applicable Interventional

Proton Therapy for High Risk Prostate Cancer

NCT01811810
View directory record Official record
Conditions
Prostate Cancer
Interventions
Radiation therapy (XRT), Androgen Deprivation Therapy (ADT), Chemotherapy
Radiation · Other
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years to 75 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 23, 2019 · Synced Sep 30, 2026, 1:27 PM EDT
Completed Not applicable Interventional Results available

Proton Beam Teletherapy for Post-Hysterectomy Cancers of the Uterus and Cervix

NCT01600040
View directory record Official record
Conditions
Uterine Cancer, Cervical Cancer
Interventions
Proton radiation therapy
Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 29, 2024 · Synced Sep 30, 2026, 1:27 PM EDT
Active, not recruiting Phase 3 Interventional

Phase III Study of 5tx vs 15tx of RT (X-rays or Protons) Including RNI in Breast Cancer Patients

NCT04443413
View directory record Official record
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8
Interventions
Proton Beam Radiation Therapy, Questionnaire Administration, X-ray Therapy
Radiation · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2029
U.S. locations
3
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 16, 2026 · Synced Sep 30, 2026, 1:27 PM EDT