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 come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 28, 2026, 7:31 AM EDT

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

Showing 1–24 of 116 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Partial Breast Irradiation Clear all
Active, not recruiting Phase 1 Interventional

A Phase I Dose Escalation Study of Single Fraction Pre-operative Partial Breast (S-PBI) for Early Stage Breast Cancer

NCT04040569
View directory record Official record
Conditions
Breast Cancer
Interventions
Radiomics on MRI
Radiation
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 28, 2026, 7:31 AM EDT
Not listed No phase listed Observational

A Multi-Institutional Registry for CyberKnife Stereotactic Accelerated Partial Breast Irradiation (CK-SAPBI)

NCT02457117
View directory record Official record
Conditions
Breast Cancer
Interventions
CyberKnife Stereotactic Accelerated Partial Breast Irradiation (CK-SAPBI)
Radiation
Lead sponsor
Georgetown University
Other
Eligibility
50 Years to 99 Years · Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jul 17, 2019 · Synced Oct 28, 2026, 7:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Multi-Reader, Multi-Case, Cross-Over, Retrospective Study to Evaluate Effectiveness of Lunit INSIGHT DBT

NCT05716958
View directory record Official record
Conditions
Breast Cancer
Interventions
Digital Breast Tomosynthesis
Radiation
Lead sponsor
Lunit Inc.
Industry
Eligibility
22 Years and older · Female only
Enrollment
262 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Annapolis, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 28, 2026, 7:31 AM EDT
Withdrawn Phase 2 Interventional

Radiation Omission in Patients With HER2 Overexpressing Tumors With Pathologic Complete Response

NCT05371860
View directory record Official record
Conditions
Breast Cancer, HER2-positive Breast Cancer
Interventions
Omit breast radiation
Other
Lead sponsor
Armando Giuliano
Other
Eligibility
40 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 22, 2023 · Synced Oct 28, 2026, 7:31 AM EDT
Active, not recruiting Phase 3 Interventional Results available

Hormone Therapy With or Without Combination Chemotherapy in Treating Women Who Have Undergone Surgery for Node-Negative Breast Cancer (The TAILORx Trial)

NCT00310180
View directory record Official record
Conditions
Breast Adenocarcinoma, Hormone Receptor Positive, Stage IA Breast Cancer AJCC v7, Stage IB Breast Cancer AJCC v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7, Stage IIIB Breast Cancer AJCC v7
Interventions
Anastrozole, Exemestane, Laboratory Biomarker Analysis, Letrozole, Quality-of-Life Assessment, Radiation Therapy, Tamoxifen Citrate
Drug · Other · Radiation
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 75 Years · Female only
Enrollment
10,273 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2030
U.S. locations
1160
States / cities
Anniston, Alabama • Birmingham, Alabama • Mobile, Alabama + 723 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 28, 2026, 7:31 AM EDT
Completed Not applicable Interventional

Three Fraction Accelerated Partial Breast Irradiation as the Sole Method of Radiation Therapy for Low-risk Stage 0 and I Breast Carcinoma

NCT03612648
View directory record Official record
Conditions
Breast Carcinoma, Breast Cancer
Interventions
Three Fraction Accelerated Partial Breast Irradiation, Partial mastectomy
Radiation · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
50 Years and older · Female only
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 28, 2026, 7:31 AM EDT
Terminated No phase listed Observational

Patient Registry: Partial Breast Irradiation

NCT01127971
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
19 Years and older
Enrollment
145 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Green Bay, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 3, 2024 · Synced Oct 28, 2026, 7:31 AM EDT
Completed Not applicable Interventional Results available

Radiation Therapy During Surgery in Treating Older Women With Invasive Breast Cancer

NCT00182728
View directory record Official record
Conditions
Breast Cancer
Interventions
surgery, therapy, radiation therapy
Procedure · Radiation
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
48 Years to 120 Years · Female only
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 1, 2024 · Synced Oct 28, 2026, 7:31 AM EDT
Recruiting Phase 3 Interventional

Intensity Modulated Radiotherapy (IMRT) vs. 3D-conformal Accelerated Partial Breast Irradiation (APBI) for Early Stage Breast Cancer After Lumpectomy

NCT01185132
View directory record Official record
Conditions
Breast Cancer
Interventions
accelerated partial breast irradiation - 3D-conformal planning, accelerated partial breast irradiation - IMRT planning
Radiation
Lead sponsor
Rocky Mountain Cancer Centers
Other
Eligibility
40 Years and older
Enrollment
660 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2028
U.S. locations
5
States / cities
Aurora, Colorado • Boulder, Colorado • Lakewood, Colorado + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2014 · Synced Oct 28, 2026, 7:31 AM EDT
Completed No phase listed Observational

Effect of Radiotherapy Variables on Circulating Effectors of Immune Response and Local Microbiome

NCT03383107
View directory record Official record
Conditions
Breast Cancer, Prostate Cancer
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 90 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 12, 2022 · Synced Oct 28, 2026, 7:31 AM EDT
Active, not recruiting Not applicable Interventional Results available

MRI-Based Preoperative Accelerated Partial Breast Irradiation

NCT02728076
View directory record Official record
Conditions
Breast Cancer
Interventions
Phase II - Preoperative Radiation followed by Lumpectomy.
Radiation
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
40 Years and older · Female only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 21, 2026 · Synced Oct 28, 2026, 7:31 AM EDT
Not listed Phase 2 Interventional

Accelerated Partial Breast Radiotherapy With Either Mammosite or Intensity Modulated Radiotherapy

NCT01185145
View directory record Official record
Conditions
Breast Cancer
Interventions
Breast Brachytherapy with Mammosite RTS, Intensity Modulated Radiotherapy
Radiation
Lead sponsor
Rocky Mountain Cancer Centers
Other
Eligibility
40 Years and older
Enrollment
291 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2024
U.S. locations
6
States / cities
Aurora, Colorado • Boulder, Colorado • Denver, Colorado + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2013 · Synced Oct 28, 2026, 7:31 AM EDT
Recruiting Phase 2 Interventional

Phase II Protocol of Proton Therapy for Partial Breast Irradiation in Early Stage Breast Cancer

NCT01766297
View directory record Official record
Conditions
Breast Cancer, Breast Neoplasm, Breast Tumor, Cancer of the Breast
Interventions
Proton Radiotherapy
Radiation
Lead sponsor
Proton Collaborative Group
Network
Eligibility
50 Years and older · Female only
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2035
U.S. locations
9
States / cities
Scottsdale, Arizona • San Diego, California • Warrenville, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 28, 2026, 7:31 AM EDT
Active, not recruiting Phase 2 Interventional

Radiation Therapy in Treating Patients With Stage 0-II Breast Cancer

NCT01245712
View directory record Official record
Conditions
Breast Adenocarcinoma, Ductal Breast Carcinoma In Situ, Invasive Breast Carcinoma, Stage 0 Breast Cancer AJCC v6 and v7, Stage I Breast Cancer AJCC v7, Stage IA Breast Cancer AJCC v7, Stage IB Breast Cancer AJCC v7, Stage II Breast Cancer AJCC v6 and v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7
Interventions
Accelerated Partial Breast Irradiation, Proton Beam Radiation Therapy, Quality-of-Life Assessment
Radiation · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2032
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 28, 2026, 7:31 AM EDT
Completed Not applicable Interventional Results available

Partial Breast Irradiation (PBI) for Selected Patients With Early Invasive or Non-Invasive Breast Cancer

NCT00694577
View directory record Official record
Conditions
Ductal Breast Cancer
Interventions
Partial Breast Irradiation using 32 Gy / 8 fractions, Partial Breast Irradiation using 36 Gy / 9 fractions, Partial Breast Irradiation using 40 Gy /10 fractions
Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
324 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2021
U.S. locations
4
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 14, 2022 · Synced Oct 28, 2026, 7:31 AM EDT
Withdrawn Not applicable Interventional

Partial Breast Irradiation in a Low-risk Population Screened With MRI

NCT01255553
View directory record Official record
Conditions
Breast Cancer
Interventions
Partial Breast Irradiation
Radiation
Lead sponsor
University of Chicago
Other
Eligibility
40 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 4, 2014 · Synced Oct 28, 2026, 7:31 AM EDT
Suspended Phase 1 Interventional

Pilot Trial of Preop Partial Radiation in Breast Cancer Patients

NCT07178665
View directory record Official record
Conditions
Early-stage Breast Cancer, Breast Carcinoma, DCIS
Interventions
Radiation: Accelerated Partial Breast Irradiation (APBI)
Radiation
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
50 Years to 90 Years · Female only
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
10
States / cities
Belleville, New Jersey • Elizabeth, New Jersey • Hamilton, New Jersey + 7 more
Source: ClinicalTrials.gov public record
Updated Nov 14, 2025 · Synced Oct 28, 2026, 7:31 AM EDT
Completed Not applicable Interventional

Image Guided Radiotherapy (IGRT) for Prone Partial Breast Irradiation

NCT02272400
View directory record Official record
Conditions
Breast Cancer
Interventions
IGRT for prone partial breast irradiation (PBI)
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
310 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Oct 28, 2026, 7:31 AM EDT
Completed Not applicable Interventional Results available

Partial Breast Irradiation Using Non Invasive Approach for Early Stage Breast Cancer

NCT01463007
View directory record Official record
Conditions
Breast Cancer
Interventions
Accelerated partial breast irradiation, Extended Follow up
Radiation · Other
Lead sponsor
Jaroslaw Hepel
Other
Eligibility
50 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2021
U.S. locations
4
States / cities
Lakeland, Florida • Providence, Rhode Island • Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated May 19, 2021 · Synced Oct 28, 2026, 7:31 AM EDT
Recruiting Not applicable Interventional

Multicenter Trial for Eliminating Breast Cancer Surgery or Radiotherapy in Exceptional Responders to Neoadjuvant Systemic Therapy

NCT02945579
View directory record Official record
Conditions
Estrogen Receptor Negative, HER2 Positive Breast Carcinoma, HER2/Neu Negative, Invasive Breast Carcinoma, Progesterone Receptor Negative, Stage I Breast Cancer AJCC v7, Stage IA Breast Cancer AJCC v7, Stage IB Breast Cancer AJCC v7, Stage II Breast Cancer AJCC v6 and v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7, Triple-Negative Breast Carcinoma
Interventions
Undergo EBRT, Laboratory Biomarker Analysis, Quality-of-Life Assessment, Questionnaire Administration, Partial Breast Irradiation
Radiation · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
30 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
8
States / cities
Gilbert, Arizona • Jacksonville, Florida • Honolulu, Hawaii + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2026 · Synced Oct 28, 2026, 7:31 AM EDT
Recruiting No phase listed Observational

Registry for Intra-Operative Radiotherapy During Breast Conserving Surgery in Patients With Early Stage Breast Cancer

NCT04603209
View directory record Official record
Conditions
Early-stage Breast Cancer, Breast Carcinoma in Situ, Breast Neoplasms
Interventions
Intraoperative Radiation Therapy (IORT)
Radiation
Lead sponsor
Saint John's Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced Oct 28, 2026, 7:31 AM EDT
Withdrawn Not applicable Interventional

A Pilot Study of CyberKnife Radiosurgery Delivered to the Partial Breast

NCT00529334
View directory record Official record
Conditions
Breast Cancer
Interventions
CyberKnife Partial Breast Irradiation
Radiation
Lead sponsor
Georgetown University
Other
Eligibility
45 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Nov 20, 2013 · Synced Oct 28, 2026, 7:31 AM EDT
Recruiting Not applicable Interventional

Surgical Excision vs Neoadjuvant Radiotherapy+Delayed Surgical Excision of Ductal Carcinoma

NCT03909282
View directory record Official record
Conditions
Ductal Breast Carcinoma in Situ
Interventions
Lumpectomy, Partial breast irradiation prior to surgery
Procedure · Radiation
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 28, 2026, 7:31 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 13, 2026 · Synced Oct 28, 2026, 7:31 AM EDT