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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Proton Beam Clear all
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 21, 2026, 7:21 AM EDT
Completed Phase 2 Interventional Results available

Radiation w/FOLFIRINOX-Losartan for Pancreatic Cancer

NCT01821729
View directory record Official record
Conditions
Pancreatic Cancer
Interventions
FOLFIRINOX, Losartan, Proton Beam Radiation
Drug · Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Sep 21, 2026, 7:21 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Proton Beam Radiation Therapy and Chemotherapy in Treating Patients With Stage III Non-Small Cell Lung Cancer That Can Be Removed By Surgery

NCT01076231
View directory record Official record
Conditions
Stage IIIA Non-small Cell Lung Cancer
Interventions
proton beam radiation therapy, cisplatin, etoposide, therapeutic conventional surgery
Radiation · Drug · Procedure
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 16, 2021 · Synced Sep 21, 2026, 7:21 AM EDT
Recruiting Phase 2 Interventional

Testing What Happens When an Immunotherapy Drug (Pembrolizumab) is Given by Itself Compared to the Usual Treatment of Chemotherapy With Radiation After Surgery for Recurrent Head and Neck Squamous Cell Carcinoma

NCT04671667
View directory record Official record
Conditions
Recurrent Head and Neck Squamous Cell Carcinoma, Recurrent Hypopharyngeal Squamous Cell Carcinoma, Recurrent Laryngeal Squamous Cell Carcinoma, Recurrent Oral Cavity Squamous Cell Carcinoma, Recurrent Oropharyngeal Squamous Cell Carcinoma
Interventions
Carboplatin, Cisplatin, Computed Tomography, Intensity-Modulated Radiation Therapy, Magnetic Resonance Imaging, Pembrolizumab, Proton Beam Radiation Therapy
Drug · Procedure · Radiation + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 79 Years
Enrollment
188 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2029
U.S. locations
178
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Anaheim, California + 128 more
Source: ClinicalTrials.gov public record
Updated Aug 23, 2026 · Synced Sep 21, 2026, 7:21 AM 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 21, 2026, 7:21 AM EDT
Terminated Phase 1 Interventional

Proton Beam Therapy to Treat Esophageal Cancer

NCT02023541
View directory record Official record
Conditions
Esophageal Squamous Cell Carcinoma, Adenocarcinoma Of Esophagus
Interventions
Proton beam therapy
Radiation
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 6, 2015 · Synced Sep 21, 2026, 7:21 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

A Study of How Proton Beam Radiotherapy (PBRT) Affects Brain Function and Quality of Life in Children and Young Adults Undergoing Treatment for a Brain Tumor

NCT05288439
View directory record Official record
Conditions
Brain Tumor, Metastatic Brain Tumor
Interventions
Resting-state functional connectivity MRI, Neurocognitive battery with quality-of-life assessment
Diagnostic Test · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
6 Years to 25 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 22, 2026 · Synced Sep 21, 2026, 7:21 AM EDT
Recruiting Phase 2 Interventional

Risk-adapted Therapy in HPV+ Oropharyngeal Cancer Using Circulating Tumor (ct)HPV DNA Profile - The ReACT Study

NCT04900623
View directory record Official record
Conditions
HPV-Associated Oropharyngeal Squamous Cell Carcinoma, HPV Positive Oropharyngeal Squamous Cell Carcinoma, HPV-Mediated (P16-Positive) Oropharyngeal Carcinoma by AJCC V8 Stage, HPV-Related Squamous Cell Carcinoma, Clinical Stage III HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8, Pathologic Stage III HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8, Clinical Stage II HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8, Pathologic Stage II HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8, Clinical Stage I HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8, Pathologic Stage I HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8, HPV-Mediated (P16-Positive) Oropharyngeal Carcinoma by AJCC V8 Clinical Stage, HPV-Mediated (P16-Positive) Oropharyngeal Carcinoma by AJCC V8 Pathologic Stage
Interventions
NavDx HPV ctDNA Testing, Radiotherapy, Chemotherapy drug
Device · Radiation · Drug
Lead sponsor
Jonathan Schoenfeld, MD, MPH
Other
Eligibility
22 Years and older
Enrollment
145 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2032
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Sep 21, 2026, 7:21 AM EDT
Recruiting Phase 2 Interventional

PROton Therapy for Post Surgical Treatment of GYNecologic Cancer

NCT05758688
View directory record Official record
Conditions
Cervical Cancer, Uterine Cancer, Endometrial Cancer
Interventions
Whole Pelvis (WP) Pencil Beam Scanning Proton Radiation (PBS PRT)
Radiation
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
3
States / cities
Voorhees Township, New Jersey • Lancaster, Pennsylvania • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Sep 21, 2026, 7:21 AM EDT
Recruiting Not applicable Interventional

Hypofractionated Proton Therapy for Benign Intracranial Brain Tumors, the HiPPI Study

NCT04278118
View directory record Official record
Conditions
Grade I Meningioma, Grade II Meningioma, Grade III Meningioma, Intracranial Neoplasm, Nerve Sheath Neoplasm, Pituitary Gland Adenoma, Schwannoma
Interventions
Hypofractionated Radiation Therapy, Photon Beam Radiation Therapy, Proton Beam Radiation Therapy, Quality-of-Life Assessment, Questionnaire Administration
Radiation · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2031
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Sep 21, 2026, 7:21 AM EDT
Recruiting Phase 3 Interventional

Observation or Radiation Therapy in Treating Patients With Newly Diagnosed Grade II Meningioma That Has Been Completely Removed by Surgery

NCT03180268
View directory record Official record
Conditions
Grade 2 Meningioma, Intracranial Meningioma
Interventions
Biospecimen Collection, Clinical Observation, Intensity-Modulated Radiation Therapy, Laboratory Biomarker Analysis, Magnetic Resonance Imaging, Proton Beam Radiation Therapy, Quality-of-Life Assessment
Procedure · Other · Radiation
Lead sponsor
NRG Oncology
Other
Eligibility
18 Years and older
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2032
U.S. locations
198
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 162 more
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Sep 21, 2026, 7:21 AM 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 21, 2026, 7:21 AM EDT
Terminated Early Phase 1 Interventional

Proton Stereotactic Body Radiation Therapy for Early-Stage Non-Small Cell Lung Cancer

NCT01525446
View directory record Official record
Conditions
Non-small Cell Lung Cancer
Interventions
SBRT with proton beam radiation
Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 16, 2016 · Synced Sep 21, 2026, 7:21 AM EDT
Active, not recruiting Phase 1 Interventional

Radioligand Therapy After PSMA PET Guided External Beam Radiotherapy for Treating Post-Prostatectomy Patients With Biochemically Recurrent Prostate Cancer

NCT06105918
View directory record Official record
Conditions
Biochemically Recurrent Prostate Carcinoma, Prostate Adenocarcinoma
Interventions
Biospecimen Collection, Computed Tomography, External Beam Radiation Therapy, Flotufolastat F-18, Lutetium Lu 177 PSMA-10.1, Positron Emission Tomography, Single Photon Emission Computed Tomography
Procedure · Radiation · Other + 1 more
Lead sponsor
Emory University
Other
Eligibility
18 Years and older · Male only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced Sep 21, 2026, 7:21 AM 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 21, 2026, 7:21 AM EDT
Recruiting Not applicable Interventional

Prospective Evaluation of Pencil Beam Scanning Proton Therapy for Previously Irradiated Tumors

NCT05313191
View directory record Official record
Conditions
CNS Cancer, Head and Neck Cancer, GI Cancer, Gynecologic Cancer, Prostate Cancer, Thoracic Cancer, Breast Cancer
Interventions
Pencil Beam Scanning Proton Therapy
Radiation
Lead sponsor
The New York Proton Center
Other
Eligibility
18 Years and older
Enrollment
1,800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 21, 2026, 7:21 AM 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 28, 2025 · Synced Sep 21, 2026, 7:21 AM 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 21, 2026, 7:21 AM EDT
Active, not recruiting Not applicable Interventional

Proton Craniospinal Irradiation With Bone Sparing to Decrease Growth Decrement From Radiation

NCT03281889
View directory record Official record
Conditions
Brain Tumor
Interventions
Proton Beam
Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
3 Years to 18 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
2
States / cities
Boston, Massachusetts • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 21, 2026, 7:21 AM 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 21, 2026, 7:21 AM 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 15, 2026 · Synced Sep 21, 2026, 7:21 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 1, 2016 · Synced Sep 21, 2026, 7:21 AM 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 21, 2026, 7:21 AM 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 21, 2026, 7:21 AM EDT