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 3, 2026, 2:34 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–23 of 23 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Pencil Beam Scanning Clear all
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 3, 2026, 2:34 AM 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 3, 2026, 2:34 AM EDT
Recruiting Early Phase 1 Interventional

Pencil Beam Scanning in Patients With Renal Tumors

NCT03810651
View directory record Official record
Conditions
Renal Tumor, Wilms Tumor
Interventions
Proton beam radiation using pencil beam scanning
Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
0 Years to 30 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 3, 2026, 2:34 AM EDT
Recruiting Not applicable Interventional

UFPTI 2403-PR12: Real-Time Volumetric Ionizing Radiation Acoustic Imaging for In-vivo Proton Treatment Monitoring in Pencil-Beam Scanning

NCT06465966
View directory record Official record
Conditions
Prostate Cancer
Interventions
iRAI
Device
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 100 Years · Male only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 3, 2026, 2:34 AM 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 3, 2026, 2:34 AM EDT
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 17, 2026 · Synced Sep 3, 2026, 2:34 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 3, 2026, 2:34 AM EDT
Recruiting Not applicable Interventional

Evaluation of Radiobiological Effects in Skin Toxicities for Breast Cancer Patients With Pencil Beam Scanning Proton Therapy

NCT06006806
View directory record Official record
Conditions
Breast Cancer, Breast Cancer Stage II, Breast Cancer Stage III, Breast Cancer Stage I
Interventions
Pencil Beam Scanning Proton Therapy
Radiation
Lead sponsor
Covenant Health Cancer Center
Other
Eligibility
18 Years and older · Female only
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 3, 2026, 2:34 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 3, 2026, 2:34 AM EDT
Withdrawn Phase 2 Interventional

Proton Accelerated Partial Breast Irradiation

NCT03940248
View directory record Official record
Conditions
Breast Cancer
Interventions
Proton Accelerated Partial Breast Irradiation
Radiation
Lead sponsor
University of Cincinnati
Other
Eligibility
50 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 5, 2021 · Synced Sep 3, 2026, 2:34 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 Jun 9, 2026 · Synced Sep 3, 2026, 2:34 AM EDT
Not yet recruiting Not applicable Interventional

A Pilot Study of Ultra-High Dose Rate (ConformalFLASH®), for Reirradiation of Carcinoma of the Head and Neck

NCT07644585
View directory record Official record
Conditions
Head and Neck Cancer
Interventions
ConformalFLASH irradiation
Radiation
Lead sponsor
IBA Proton Therapy, Inc.
Industry
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Sep 3, 2026, 2:34 AM 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 3, 2026, 2:34 AM EDT
Active, not recruiting Phase 2 Interventional

Major De-escalation to 30 Gy for Select Human Papillomavirus Associated Oropharyngeal Carcinoma

NCT03323463
View directory record Official record
Conditions
HPV-Associated Oropharyngeal Squamous Cell Carcinoma, Squamous Cell Carcinoma of the Neck
Interventions
F-FMISO PET/CT Scan, 30 Gy over 3 weeks, Cisplatin, Carboplatin, 5Fluorouracil, Proton Therapy
Diagnostic Test · Radiation · Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
316 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
10
States / cities
Hartford, Connecticut • Miami, Florida • Basking Ridge, New Jersey + 7 more
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 3, 2026, 2:34 AM EDT
Recruiting Phase 3 Interventional

Testing Addition of an Anti-cancer Drug, Vorasidenib to Temozolomide, After Radiation for Advanced Brain Cancer

NCT07215910
View directory record Official record
Conditions
Astrocytoma, IDH-Mutant, Grade 3
Interventions
Intensity-Modulated Radiation Therapy, Volume Modulated Arc Therapy, Pencil Beam Scanning, Intensity-Modulated Proton Therapy, Temozolomide, Vorasidenib, Placebo Administration, Biospecimen Collection, Magnetic Resonance Imaging, Questionnaire Administration
Radiation · Procedure · Drug + 1 more
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
12 Years and older
Enrollment
408 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2040
U.S. locations
121
States / cities
Bakersfield, California • Duarte, California • Irvine, California + 96 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 3, 2026, 2:34 AM EDT
Recruiting Not applicable Interventional

Reduction of Gastrointestinal Toxicity in Prostate Cancer by Proton Spot Placement

NCT06200259
View directory record Official record
Conditions
Prostate Cancer, Prostate Adenocarcinoma, Prostate Carcinoma
Interventions
Spot Delete planning for proton therapy, Traditional proton treatment planning system
Radiation
Lead sponsor
Covenant Health Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2040
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Sep 3, 2026, 2:34 AM 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 28, 2025 · Synced Sep 3, 2026, 2:34 AM EDT
Completed No phase listed Observational

Pencil Beam Scanning Proton Radiotherapy for Esophageal Cancer

NCT02452021
View directory record Official record
Conditions
Esophageal Cancer
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 26, 2021 · Synced Sep 3, 2026, 2:34 AM 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 12, 2026 · Synced Sep 3, 2026, 2:34 AM 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 3, 2026, 2:34 AM 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 28, 2026 · Synced Sep 3, 2026, 2:34 AM 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 3, 2025 · Synced Sep 3, 2026, 2:34 AM EDT
Completed Phase 2 Interventional Results available

A Clinical Trial of Endoscopic Surgery Followed by Chemotherapy and Proton Radiation for the Treatment of Tumors in the Sinus and Nasal Passages

NCT03274414
View directory record Official record
Conditions
Paranasal Sinus Cancer, Nasal Cavity Tumor, Nasal Cavity Adenocarcinoma
Interventions
Cisplatin, Adjuvant Proton Radiotherapy, Endoscopic Resection, cisplatin and etoposide
Drug · Radiation · Procedure
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
5
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 2 more
Source: ClinicalTrials.gov public record
Updated May 15, 2025 · Synced Sep 3, 2026, 2:34 AM EDT