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Showing 1–24 of 159 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Proton Beam radiation Clear all
Completed No phase listed Observational

Neurobehavioral Functioning in Pediatric Brain Tumor Patients After Proton Beam Radiation Treatment

NCT01180881
View directory record Official record
Conditions
Brain Tumor, Central Nervous System Neoplasms
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
1 Year to 25 Years
Enrollment
155 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 10, 2026, 5:59 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Pembrolizumab and Stereotactic Body Radiation Therapy or Non-Stereotactic Wide-Field Radiation Therapy in Treating Patients With Non-small Cell Lung Cancer

NCT02444741
View directory record Official record
Conditions
Malignant Solid Neoplasm, Metastatic Lung Non-Small Cell Carcinoma, Stage IV Lung Non-Small Cell Cancer AJCC v7
Interventions
3-Dimensional Conformal Radiation Therapy, Intensity-Modulated Radiation Therapy, Laboratory Biomarker Analysis, Pembrolizumab, Proton Beam Radiation Therapy, Radiation Therapy, Stereotactic Body Radiation Therapy
Radiation · Other · Biological
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 10, 2026, 5:59 PM EDT
Completed Phase 2 Interventional Results available

Bevacizumab With or Without Radiation Therapy in Treating Patients With Recurrent Glioblastoma

NCT01730950
View directory record Official record
Conditions
Adult Giant Cell Glioblastoma, Adult Glioblastoma, Adult Gliosarcoma, Recurrent Adult Brain Tumor
Interventions
bevacizumab, radiation therapy
Biological · Radiation
Lead sponsor
Radiation Therapy Oncology Group
Network
Eligibility
18 Years and older
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2022
U.S. locations
31
States / cities
Birmingham, Alabama • Phoenix, Arizona • Walnut Creek, California + 26 more
Source: ClinicalTrials.gov public record
Updated Dec 28, 2022 · Synced Sep 10, 2026, 5:59 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 15, 2026 · Synced Sep 10, 2026, 5:59 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 10, 2026, 5:59 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 14, 2024 · Synced Sep 10, 2026, 5:59 PM EDT
Completed Phase 1 Interventional

Study of GDC-0084 in Pediatric Patients With Newly Diagnosed Diffuse Intrinsic Pontine Glioma or Diffuse Midline Gliomas

NCT03696355
View directory record Official record
Conditions
Brain and Central Nervous System Tumors
Interventions
GDC-0084, radiation therapy
Drug · Radiation
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
2 Years to 21 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 17, 2023 · Synced Sep 10, 2026, 5:59 PM EDT
Withdrawn Phase 2 Interventional

Neoadjuvant Short-course Hypofractionated PBT for Non-metastatic RPS

NCT05302570
View directory record Official record
Conditions
Retroperitoneal Sarcoma
Interventions
Hypofractionated Proton Beam Therapy
Radiation
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 14, 2022 · Synced Sep 10, 2026, 5:59 PM EDT
Completed Not applicable Interventional Results available

Proton Therapy for Unresectable Cancer (CA) of Pancreas

NCT00685763
View directory record Official record
Conditions
Pancreatic Cancer
Interventions
Proton radiation and chemotherapy
Radiation
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 100 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2017
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 23, 2017 · Synced Sep 10, 2026, 5:59 PM EDT
Recruiting Phase 1 Interventional

Atovaquone Combined With Radiation in Children With Malignant Brain Tumors

NCT06624371
View directory record Official record
Conditions
High-grade Glioma, Medulloblastoma, Diffuse Intrinsic Pontine Glioma, Diffuse Midline Glioma, H3 K27M-Mutant
Interventions
Atovaquone, Radiation Therapy
Drug · Radiation
Lead sponsor
Emory University
Other
Eligibility
2 Years to 25 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 2, 2026 · Synced Sep 10, 2026, 5:59 PM EDT
Completed Not applicable Interventional Results available

Proton Radiation Therapy for Invasive Breast Cancer Following Mastectomy

NCT01340495
View directory record Official record
Conditions
Invasive Breast Cancer
Interventions
Proton Radiation
Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Sep 10, 2026, 5:59 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Prospective Study of Intensity-Modulated Proton Therapy (IMPT) for Small Cell Lung Cancer

NCT04342429
View directory record Official record
Conditions
Small-cell Lung Cancer
Interventions
Proton-beam Therapy for Small Cell Lung Cancer
Radiation
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced Sep 10, 2026, 5:59 PM EDT
Recruiting Not applicable Interventional

Proton Radiation Therapy for the Treatment of Patients With High Risk Prostate Cancer

NCT04725903
View directory record Official record
Conditions
Stage III Prostate Cancer AJCC v8, Stage IIIA Prostate Cancer AJCC v8, Stage IIIB Prostate Cancer AJCC v8, Stage IIIC Prostate Cancer AJCC v8
Interventions
High-Dose Rate Brachytherapy, Proton Beam Radiation Therapy, Quality-of-Life Assessment, Survey Administration
Radiation · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older · Male only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Sep 10, 2026, 5:59 PM EDT
Completed No phase listed Observational

Registry Study of Thoracic Reirradiation for Non-Small Cell Lung Cancer (NSCLC) Utilizing Proton Beam Therapy or Intensity Modulated Radiation Therapy

NCT01808677
View directory record Official record
Conditions
Non-Small Cell Lung Cancer
Interventions
Thoracic Reirradiation Registry
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 23, 2016 · Synced Sep 10, 2026, 5:59 PM EDT
Terminated Not applicable Interventional Results available

Stem Cell Radiotherapy and Temozolomide for Newly Diagnosed High-grade Glioma

NCT02039778
View directory record Official record
Conditions
Glioblastoma, Malignant Glioma, Brain Tumors, Anaplastic Astrocytoma
Interventions
Stem Cell Radiotherapy (ScRT) and Temozolomide
Radiation
Lead sponsor
Beth Israel Medical Center
Other
Eligibility
18 Years to 70 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 4, 2017 · Synced Sep 10, 2026, 5:59 PM EDT
Active, not recruiting Phase 3 Interventional

Comparing Proton Therapy to Photon Radiation Therapy for Esophageal Cancer

NCT03801876
View directory record Official record
Conditions
Clinical Stage I Esophageal Adenocarcinoma AJCC v8, Clinical Stage I Esophageal Squamous Cell Carcinoma AJCC v8, Clinical Stage I Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage II Esophageal Adenocarcinoma AJCC v8, Clinical Stage II Esophageal Squamous Cell Carcinoma AJCC v8, Clinical Stage II Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage III Esophageal Adenocarcinoma AJCC v8, Clinical Stage III Esophageal Squamous Cell Carcinoma AJCC v8, Clinical Stage III Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage IVA Esophageal Adenocarcinoma AJCC v8, Clinical Stage IVA Esophageal Squamous Cell Carcinoma AJCC v8, Clinical Stage IVA Gastroesophageal Junction Adenocarcinoma AJCC v8, Thoracic Esophagus Squamous Cell Carcinoma
Interventions
Biospecimen Collection, Capecitabine, Carboplatin, Computed Tomography, Docetaxel, Esophagectomy, Fluorouracil, Intensity-Modulated Radiation Therapy, Leucovorin Calcium, Oxaliplatin, Paclitaxel, Positron Emission Tomography, Proton Beam Radiation Therapy, Quality-of-Life Assessment, Questionnaire Administration
Procedure · Drug · Radiation + 1 more
Lead sponsor
NRG Oncology
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2036
U.S. locations
96
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Little Rock, Arkansas + 77 more
Source: ClinicalTrials.gov public record
Updated Aug 23, 2026 · Synced Sep 10, 2026, 5:59 PM EDT
Completed Not applicable Interventional Results available

Proton Beam Re-Irradiation in Thoracic Cancers

NCT02204761
View directory record Official record
Conditions
Metastatic Malignant Neoplasm in the Lung, Recurrent Disease, Thoracic Neoplasm
Interventions
Proton Beam Radiation Therapy
Radiation
Lead sponsor
University of Washington
Other
Eligibility
19 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
2
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 19, 2018 · Synced Sep 10, 2026, 5:59 PM 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 5, 2017 · Synced Sep 10, 2026, 5:59 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 28, 2024 · Synced Sep 10, 2026, 5:59 PM EDT
Completed Phase 1 Interventional

Hypofractionated Proton Beam Radiation Therapy, Paclitaxel, and Carboplatin in Treating Patients With Stage II-III Non-Small Cell Lung Cancer

NCT02172846
View directory record Official record
Conditions
Carcinoma, Non-Small-Cell Lung
Interventions
Proton beam radiation therapy (PBT), Paclitaxel, Carboplatin
Radiation · Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 7, 2017 · Synced Sep 10, 2026, 5:59 PM EDT
Active, not recruiting Phase 2 Interventional

Proton Beam Therapy for Chondrosarcoma

NCT00496522
View directory record Official record
Conditions
Chondrosarcoma
Interventions
Proton Beam Therapy
Procedure
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 8, 2026 · Synced Sep 10, 2026, 5:59 PM EDT
Active, not recruiting Not applicable Interventional

Ultrahypofractionation and Normal Tissue Toxicity

NCT05912231
View directory record Official record
Conditions
Breast Cancer, Breast Cancer Female, Breast Cancer Stage II, Breast Cancer Stage III, Myocardial Fibrosis
Interventions
Accelerated Proton Beam Radiation Therapy (PBT), Accelerated Photon Radiation Therapy (XRT)
Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 12, 2025 · Synced Sep 10, 2026, 5:59 PM EDT
Completed No phase listed Observational

Registry for Proton Beam Radiation Therapy

NCT02040467
View directory record Official record
Conditions
Carcinoma
Interventions
Not listed
Lead sponsor
Washington University School of Medicine
Other
Eligibility
Not listed
Enrollment
1,243 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2023
U.S. locations
5
States / cities
Orlando, Florida • St Louis, Missouri • New Brunswick, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2023 · Synced Sep 10, 2026, 5:59 PM EDT
Completed Phase 1 Interventional

Image-guided Proton Therapy for the Treatment of Locally Advanced Unresectable Head and Neck Cancer

NCT04870840
View directory record Official record
Conditions
Locally Advanced Head and Neck Squamous Cell Carcinoma, Locally Advanced Hypopharyngeal Squamous Cell Carcinoma, Locally Advanced Laryngeal Squamous Cell Carcinoma, Locally Advanced Nasopharyngeal Squamous Cell Carcinoma, Locally Advanced Oral Cavity Squamous Cell Carcinoma, Locally Advanced Oropharyngeal Squamous Cell Carcinoma, Malignant Posterior Tongue Neoplasm, Stage II Cutaneous Squamous Cell Carcinoma of the Head and Neck AJCC v8, Stage II Hypopharyngeal Carcinoma AJCC v8, Stage II Laryngeal Cancer AJCC v8, Stage II Nasopharyngeal Carcinoma AJCC v8, Stage II Oropharyngeal (p16-Negative) Carcinoma AJCC v8, Stage III Cutaneous Squamous Cell Carcinoma of the Head and Neck AJCC v8, Stage III Hypopharyngeal Carcinoma AJCC v8, Stage III Laryngeal Cancer AJCC v8, Stage III Nasopharyngeal Carcinoma AJCC v8, Stage III Oropharyngeal (p16-Negative) Carcinoma AJCC v8, Unresectable Head and Neck Squamous Cell Carcinoma, Unresectable Oropharyngeal Squamous Cell Carcinoma
Interventions
Proton Beam Radiation Therapy, Quality-of-Life Assessment, Questionnaire Administration
Radiation · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 28, 2024 · Synced Sep 10, 2026, 5:59 PM EDT