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Showing 1–24 of 41 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Hypofractionated Proton Therapy Clear all
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 28, 2025 · Synced Sep 14, 2026, 3:47 PM EDT
Completed Not applicable Interventional Results available

Proton Therapy for Low and Intermediate Risk Prostate Cancer

NCT00693238
View directory record Official record
Conditions
Prostate Cancer
Interventions
Low Risk Proton Radiation, Intermediate Risk Proton Radiation
Radiation
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older · Male only
Enrollment
228 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2022
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 17, 2023 · Synced Sep 14, 2026, 3:47 PM EDT
Recruiting Phase 2 Interventional

Shortening Adjuvant Photon and Proton Irradiation (SAPPHIRe-II): A 4 Cohort, Randomized, Phase II Multi-center Trial Evaluating Shorter Schedules of Adjuvant Regional Nodal Irradiation Among Women and Men With Node-positive and High-risk Node-negative Invasive Breast Cancer

NCT07076485
View directory record Official record
Conditions
Breast Cancer
Interventions
Ultrahypofractionated Radiation, Moderately Hypofractionated Radiation
Radiation
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
768 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
5
States / cities
Loveland, Colorado • Jacksonville, Florida • Voorhees Township, New Jersey + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 14, 2026, 3:47 PM EDT
Recruiting Phase 2 Interventional

Reduced Dose Radiotherapy for the Treatment of Indolent Non-Hodgkin Lymphoma

NCT06386315
View directory record Official record
Conditions
Indolent B-Cell Non-Hodgkin Lymphoma, Recurrent Indolent B-Cell Non-Hodgkin Lymphoma, Refractory Indolent B-Cell Non-Hodgkin Lymphoma, Recurrent Indolent Non-Hodgkin Lymphoma, Refractory Indolent Non-Hodgkin Lymphoma
Interventions
Computed Tomography, Endoscopic Procedure, Involved-site Radiation Therapy (3 Fractions), Involved-site Radiation Therapy (12 Fractions), Positron Emission Tomography, Questionnaire Administration
Procedure · Radiation · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
7
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Albert Lea, Minnesota + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Sep 14, 2026, 3:47 PM EDT
Recruiting Phase 1 Interventional

Immunotherapy for Malignant Pediatric Brain Tumors Employing Adoptive Cellular Therapy (IMPACT)

NCT06193759
View directory record Official record
Conditions
Medulloblastoma, Childhood, Atypical Teratoid/Rhabdoid Tumor of CNS, Embryonal Tumor With Multilayered Rosettes, Pineoblastoma, Embryonal Brain Tumor Not Otherwise Specified, Ependymoma
Interventions
Multi-tumor antigen specific cytotoxic T lymphocytes (TSA-T) directed against proteogenomically determined personalized tumor-specific antigens (TSA), Group A Standard-of-Care Backbone Therapy, Group B Salvage Backbone Therapy
Biological · Drug · Radiation
Lead sponsor
Children's National Research Institute
Other
Eligibility
1 Year to 30 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2032
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Sep 14, 2026, 3:47 PM EDT
Active, not recruiting Phase 2 Interventional

Phase II Study of Pencil Beam Scanning Proton Stereotactic Body Radiation Therapy for Prostate Cancer

NCT04842890
View directory record Official record
Conditions
Prostate Cancer
Interventions
Pencil Beam Scanning Proton SBRT
Radiation
Lead sponsor
The New York Proton Center
Other
Eligibility
18 Years and older · Male only
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2031
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 14, 2026, 3:47 PM EDT
Terminated Phase 1 Interventional

Study of Hypofractionated Proton Radiation Therapy in Thoracic Malignancies

NCT01165658
View directory record Official record
Conditions
Non-small Cell Lung Cancer, Small Cell Lung Cancer, Carcinoid, Thymic Cancer, Lung Cancer
Interventions
Proton Therapy
Radiation
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 1, 2020 · Synced Sep 14, 2026, 3:47 PM EDT
Active, not recruiting Phase 2 Interventional

A Study To Evaluate Hypofractionated Proton Therapy Or IMRT For Recurrent, Oligometastatic Prostate Cancer

NCT04190446
View directory record Official record
Conditions
Metastatic Prostate Adenocarcinoma, Oligometastatic Prostate Carcinoma, Prostate Adenocarcinoma, Recurrent Prostate Carcinoma, Stage IVB Prostate Cancer AJCC v8
Interventions
Intensity-Modulated Radiation Therapy, Proton Beam Radiation Therapy, Quality-of-Life Assessment, Questionnaire Administration, Computed Tomography, Magnetic Resonance Imaging, Biospecimen Collection
Radiation · Other · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Male only
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 14, 2026, 3:47 PM EDT
Completed Not applicable Interventional

Hypofractionated Proton Radiation Therapy for Low and Intermediate Risk Prostate Cancer

NCT01368055
View directory record Official record
Conditions
Prostate Cancer
Interventions
70 Gy/CGE, 72.5 Gy/CGE
Radiation
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older · Male only
Enrollment
361 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2025
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced Sep 14, 2026, 3:47 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 14, 2026, 3:47 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 14, 2026, 3:47 PM EDT
Not listed Not applicable Interventional

Hypofractionated Image Guided Proton Therapy for Low andIntermediate Risk Prostate Cancer

NCT02040610
View directory record Official record
Conditions
Prostate Cancer
Interventions
Hypofractionated Proton Therapy
Radiation
Lead sponsor
Provision Center for Proton Therapy
Other
Eligibility
18 Years and older · Male only
Enrollment
235 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2025
U.S. locations
2
States / cities
Knoxville, Tennessee • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 4, 2019 · Synced Sep 14, 2026, 3:47 PM EDT
Active, not recruiting Not applicable Interventional

LITT Followed by Hypofractionated RT for Recurrent Gliomas

NCT04181684
View directory record Official record
Conditions
Glioblastoma, Brain Tumor, Glioma, Neoplasms
Interventions
Procedure: LITT, Hypo-Fractionated Radiation Therapy
Device · Radiation
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
22 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
4
States / cities
Baltimore, Maryland • Bel Air, Maryland • Columbia, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Sep 14, 2026, 3:47 PM EDT
Recruiting Phase 2 Interventional

Preoperative Hypofractionated Radiotherapy With FOLFOX for Esophageal or Gastroesophageal Junction Adenocarcinoma

NCT06078709
View directory record Official record
Conditions
Clinical Stage I Esophageal Adenocarcinoma AJCC v8, Clinical Stage I Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage II Esophageal Adenocarcinoma AJCC v8, Clinical Stage II Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage III Esophageal Adenocarcinoma AJCC v8, Clinical Stage III Gastroesophageal Junction Adenocarcinoma AJCC v8
Interventions
Biospecimen Collection, Computed Tomography, Endoscopic Ultrasound, Esophagogastroduodenoscopy, Fluorouracil, Hypofractionated Radiation Therapy, Leucovorin Calcium, Oxaliplatin, Positron Emission Tomography, Survey Administration, Docetaxel, Durvalumab
Procedure · Drug · Radiation + 2 more
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
3
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced Sep 14, 2026, 3:47 PM EDT
Recruiting Not applicable Interventional

LITT Followed by Hypofractionated RT for Newly Diagnosed Gliomas (GCC 20138)

NCT04699773
View directory record Official record
Conditions
Glioma, Glioblastoma, Brain Tumor
Interventions
LITT, Hypofractionated Radiation Therapy
Procedure · Radiation
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
5
States / cities
Baltimore, Maryland • Bel Air, Maryland • Columbia, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 14, 2026, 3:47 PM EDT
Completed Phase 2 Interventional Results available

Radiation Therapy in Treating Patients With Prostate Cancer

NCT01434290
View directory record Official record
Conditions
Prostate Cancer, Psychosocial Effects of Cancer and Its Treatment, Radiation Toxicity, Sexual Dysfunction
Interventions
36.25 Gy IMRT, 51.6 Gy IMRT
Radiation
Lead sponsor
Radiation Therapy Oncology Group
Network
Eligibility
18 Years and older · Male only
Enrollment
255 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2022
U.S. locations
32
States / cities
Birmingham, Alabama • Peoria, Arizona • Phoenix, Arizona + 25 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2022 · Synced Sep 14, 2026, 3:47 PM EDT
Active, not recruiting Not applicable Interventional

A Prospective Comparative Study of Outcomes With Proton and Photon Radiation in Prostate Cancer

NCT03561220
View directory record Official record
Conditions
Prostate Cancer
Interventions
Standard of Care IMRT (Photon), Standard of Care Proton Therapy, Proton Arm 1: Standard Proton Therapy, Proton Arm 2: Hypofractionated Proton Therapy
Radiation
Lead sponsor
University of Florida
Other
Eligibility
30 Years to 85 Years · Male only
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
53
States / cities
Birmingham, Alabama • La Jolla, California • Loma Linda, California + 44 more
Source: ClinicalTrials.gov public record
Updated Mar 8, 2026 · Synced Sep 14, 2026, 3:47 PM EDT
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 14, 2026, 3:47 PM EDT
Active, not recruiting Phase 1 Interventional

Hypofractionated Accelerated Pelvic Nodal Radiotherapy (GCC 2048)

NCT04486755
View directory record Official record
Conditions
Prostate Cancer, Prostate Adenocarcinoma
Interventions
Hypofractionated Radiation Therapy
Radiation
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older · Male only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced Sep 14, 2026, 3:47 PM EDT
Recruiting Phase 2 Interventional

Pembrolizumab and Hypofractionated Radiation Therapy for the Treatment of Mucosal Melanoma

NCT04318717
View directory record Official record
Conditions
Mucosal Melanoma of the Head and Neck
Interventions
Pembrolizumab, Hypofractionated radiation therapy
Drug · Radiation
Lead sponsor
Washington University School of Medicine
Other
Eligibility
16 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2032
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 14, 2026, 3:47 PM EDT
Active, not recruiting Not applicable Interventional

Primary Breast Oligoprogressive Sites Treated With Radiotherapy to Obviate the Need to Change Systemic Therapy

NCT06055881
View directory record Official record
Conditions
Breast Carcinoma, Anatomic Stage IV Breast Cancer AJCC v8, Metastatic Breast Cancer
Interventions
Biospecimen Collection, Surveys, Stereotactic Body Radiation Therapy (SBRT), Computed Tomography, Magnetic Resonance Imaging, Positron Emission Tomography
Procedure · Other · Radiation
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2031
U.S. locations
2
States / cities
Scottsdale, Arizona • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 14, 2026, 3:47 PM EDT
Terminated Phase 1 Interventional

Neoadjuvant Avelumab and Hypofractionated Proton Radiation Therapy Followed by Surgery for Recurrent Radiation-refractory Meningioma

NCT03267836
View directory record Official record
Conditions
Meningioma, Meningioma, Adult
Interventions
Avelumab, Proton Therapy, Surgery
Drug · Radiation · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 14, 2023 · Synced Sep 14, 2026, 3:47 PM EDT
Terminated Phase 1 Interventional

Proton Radiation Therapy With Cisplatin and Etoposide Followed by Surgery in Stage III Non-Small Cell Lung Cancer

NCT01565772
View directory record Official record
Conditions
Non-Small Cell Lung Cancer
Interventions
Proton Beam Radiation, Cisplatin, Etoposide
Radiation · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 16, 2016 · Synced Sep 14, 2026, 3:47 PM EDT
Recruiting Phase 2 Interventional

Hypofractionated WPPT With HDR Boost

NCT06591819
View directory record Official record
Conditions
Prostate Cancer
Interventions
Hypofractionated Whole Pelvis Proton Therapy with Brachytherapy Boost
Radiation
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2035
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 14, 2026, 3:47 PM EDT