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ClinicalTrials.gov public records Last synced Oct 5, 2026, 12:58 AM EDT

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Showing 1–24 of 32 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Partial breast radiation after lumpectomy Clear all
Recruiting Not applicable Interventional

SABER Study for Selected Early Stage Breast Cancer

NCT04360330
View directory record Official record
Conditions
Breast Cancer, Early-stage Breast Cancer
Interventions
Stereotactic Ablative Breast Radiotherapy
Radiation
Lead sponsor
University of Miami
Other
Eligibility
50 Years and older · Female only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2029
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 5, 2026, 12:58 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 5, 2026, 12:58 AM EDT
Active, not recruiting Phase 2 Interventional

Partial Breast Irradiation (PBI) Using 40 Gy for Select Patients With Early Invasive or Noninvasive Breast Cancer

NCT01203839
View directory record Official record
Conditions
Breast Cancer
Interventions
multiple beams utilizing either intensity-modulated or 3D-conformal techniques
Radiation
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2026
U.S. locations
8
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 6, 2025 · Synced Oct 5, 2026, 12:58 AM EDT
Active, not recruiting Phase 2 Interventional

CompassHER2-pCR: Decreasing Chemotherapy for Breast Cancer Patients After Pre-surgery Chemo and Targeted Therapy

NCT04266249
View directory record Official record
Conditions
Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Anatomic Stage IIB Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Invasive Breast Carcinoma, Prognostic Stage II Breast Cancer AJCC v8, Prognostic Stage IIA Breast Cancer AJCC v8, Prognostic Stage IIB Breast Cancer AJCC v8, Prognostic Stage IIIA Breast Cancer AJCC v8
Interventions
Docetaxel, Lumpectomy, Mastectomy, Nab-paclitaxel, Paclitaxel, Pertuzumab, Radiation Therapy, Trastuzumab, Trastuzumab Emtansine
Drug · Procedure · Biological + 1 more
Lead sponsor
ECOG-ACRIN Cancer Research Group
Network
Eligibility
18 Years and older
Enrollment
2,175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2038
U.S. locations
999
States / cities
Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 674 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Oct 5, 2026, 12:58 AM EDT
Completed Not applicable Interventional

Intraoperative Radiation Therapy in Early Stage Breast Cancer

NCT02266602
View directory record Official record
Conditions
Breast Cancer
Interventions
Intraoperative Radiation Therapy
Radiation
Lead sponsor
Benaroya Research Institute
Other
Eligibility
45 Years and older · Female only
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 26, 2019 · Synced Oct 5, 2026, 12:58 AM EDT
Not listed Phase 3 Interventional

Randomized Study of Combination Chemotherapy With or Without Focused Microwave Thermotherapy Before Surgery in Treating Women With Large Breast Cancer Tumors

NCT01204801
View directory record Official record
Conditions
Breast Cancer
Interventions
Focused Microwave Thermotherapy, Chemotherapy (control)
Device · Drug
Lead sponsor
Medifocus, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
238 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Sep 24, 2015 · Synced Oct 5, 2026, 12:58 AM EDT
Completed Phase 1 Interventional

Radiation Therapy Using Gold Markers in Treating Women With Early-Stage Breast Cancer

NCT00749437
View directory record Official record
Conditions
Breast Cancer
Interventions
3-dimensional conformal accelerated partial breast irradiation
Radiation
Lead sponsor
University of Medicine and Dentistry of New Jersey
Other
Eligibility
45 Years and older · Female only
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 14, 2012 · Synced Oct 5, 2026, 12:58 AM EDT
Completed Phase 1 Interventional

Pre-Operative Radiation and Veliparib for Breast Cancer

NCT01618357
View directory record Official record
Conditions
Breast Cancer
Interventions
Radiation, Lumpectomy/Mastectomy, Veliparib
Radiation · Procedure · Drug
Lead sponsor
Richard Zellars
Other
Eligibility
18 Years and older · Female only
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2023
U.S. locations
6
States / cities
Avon, Indiana • Carmel, Indiana • Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Oct 5, 2026, 12:58 AM EDT
Completed Phase 4 Interventional

Use of the Contura™ Catheter to Deliver Accelerated Partial Breast Irradiation to "Low-risk" Breast Cancer Patients

NCT00882596
View directory record Official record
Conditions
Breast Cancer
Interventions
Accelerated partial breast irradiation
Device
Lead sponsor
Cancer Center of Irvine
Other
Eligibility
50 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Jan 25, 2018 · Synced Oct 5, 2026, 12:58 AM EDT
Recruiting Phase 3 Interventional

De-Escalation of Breast Radiation Trial for Hormone Sensitive, HER-2 Negative, Oncotype Recurrence Score Less Than or Equal to 18 Breast Cancer (DEBRA)

NCT04852887
View directory record Official record
Conditions
Stage I Breast Cancer
Interventions
Radiation and Endocrine Therapy (Tamoxifen, Anastrozol, Letrozole, Exemestane), Endocrine Therapy (Tamoxifen, Anastrozol, Letrozole, Exemestane)
Other · Drug
Lead sponsor
NRG Oncology
Other
Eligibility
50 Years to 70 Years
Enrollment
1,670 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2041
U.S. locations
812
States / cities
Birmingham, Alabama • Mobile, Alabama • Kingman, Arizona + 553 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Oct 5, 2026, 12:58 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 5, 2026, 12:58 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 5, 2026, 12:58 AM EDT
Withdrawn Not applicable Interventional

Lumpectomy Followed By Intraoperative Electron Radiation Therapy (IOERT)

NCT01960803
View directory record Official record
Conditions
Invasive Ductal Breast Cancer, Carcinoma Breast Stage I
Interventions
Intraoperative Electron Radiotherapy
Radiation
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
50 Years to 95 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Oak Lawn, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 4, 2024 · Synced Oct 5, 2026, 12:58 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

CyberKnife Stereotactic Accelerated Partial Breast Irradiation (SAPBI)

NCT02365714
View directory record Official record
Conditions
Breast Cancer, DCIS, Invasive Ductal Carcinoma
Interventions
CK Stereotactic Accelerated Partial Breast Irradiation
Radiation
Lead sponsor
Georgetown University
Other
Eligibility
50 Years to 99 Years · Female only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Apr 13, 2018 · Synced Oct 5, 2026, 12:58 AM EDT
Completed Not applicable Interventional Results available

Single Fraction High-Gradient Partial Breast Irradiation in Treating Patients With Low-Risk Stage 0-I Breast Cancer

NCT02076074
View directory record Official record
Conditions
Breast Neoplasms
Interventions
accelerated partial breast irradiation
Radiation
Lead sponsor
Washington University School of Medicine
Other
Eligibility
50 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2023
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 11, 2024 · Synced Oct 5, 2026, 12:58 AM EDT
Completed Not applicable Interventional

Intensity Modulated Accelerated Partial Breast Irradiation Before Surgery in Treating Older Patients With Hormone Responsive Stage 0-I Breast Cancer

NCT02186470
View directory record Official record
Conditions
Estrogen Receptor-positive Breast Cancer, Invasive Ductal Breast Carcinoma, Invasive Ductal Breast Carcinoma With Predominant Intraductal Component, Medullary Ductal Breast Carcinoma With Lymphocytic Infiltrate, Mucinous Ductal Breast Carcinoma, Papillary Ductal Breast Carcinoma, Progesterone Receptor-positive Breast Cancer, Stage IA Breast Cancer, Stage IB Breast Cancer, Tubular Ductal Breast Carcinoma
Interventions
accelerated partial breast irradiation, intensity-modulated radiation therapy, image-guided radiation therapy, therapeutic conventional surgery
Radiation · Procedure
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
50 Years and older · Female only
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2025
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 22, 2025 · Synced Oct 5, 2026, 12:58 AM EDT
Completed Not applicable Interventional Results available

Proton Therapy for Early Stage Breast Cancer

NCT00614172
View directory record Official record
Conditions
Early-Stage Breast Cancer
Interventions
Proton radiation therapy
Radiation
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2020
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 5, 2026, 12:58 AM EDT
Completed Not applicable Interventional Results available

Multi-Beam Intensity-Modulated Radiation Therapy for Node-Positive Breast Cancer

NCT01127373
View directory record Official record
Conditions
Breast Cancer
Interventions
Multi-Beam Intensity-Modulated Radiation Therapy, BreastQ questionnaire-
Radiation · Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2019
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Commack, New York + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2021 · Synced Oct 5, 2026, 12:58 AM EDT
Completed Phase 1 Interventional Results available

A Study of Rucaparib Administered With Radiation in Patients With Triple Negative Breast Cancer With an Incomplete Response Following Chemotherapy

NCT03542175
View directory record Official record
Conditions
Breast Cancer
Interventions
Rucaparib, Radiotherapy
Drug · Radiation
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
8
States / cities
Norwalk, Connecticut • Basking Ridge, New Jersey • Middletown, New Jersey + 5 more
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced Oct 5, 2026, 12:58 AM EDT
Recruiting Not applicable Interventional

RAD 1802: Pilot Trial of Five Fraction Stereotactic Body Radiotherapy for Early Stage Breast Cancer Patients Eligible for Post-Operative Accelerated Partial Breast Irradiation (APBI)

NCT03643861
View directory record Official record
Conditions
Breast Cancer
Interventions
5 Fraction Stereotactic Body Radiation Therapy
Radiation
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 99 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Oct 31, 2025 · Synced Oct 5, 2026, 12:58 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 – 2026
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Oct 5, 2026, 12:58 AM EDT
Not listed Not applicable Interventional

Intraoperative Boost Radiotherapy With Electrons (IOERT) Followed By Hypofractionated Whole-Breast Irradiation (WBRT)

NCT01295723
View directory record Official record
Conditions
Invasive Lobular and Ductal Carcinoma
Interventions
Hypofractionated Whole Breast Radiation Therapy, Intraoperative Electron Radiation Therapy
Radiation
Lead sponsor
St. Joseph Hospital of Orange
Other
Eligibility
40 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2022
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated May 11, 2022 · Synced Oct 5, 2026, 12:58 AM EDT
Recruiting No phase listed Observational

IORT Following Breast Conserving Surgery for Early Stage Breast Cancer Registry

NCT03536897
View directory record Official record
Conditions
Breast Cancer
Interventions
IORT
Radiation
Lead sponsor
Mount Carmel Health System
Other
Eligibility
65 Years and older · Female only
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 27, 2024 · Synced Oct 5, 2026, 12:58 AM EDT
Recruiting Phase 2 Interventional

Compare Adjuvant Monotherapy With Endocrine or Accelerated Partial Breast Irradiation After Lumpectomy

NCT05472792
View directory record Official record
Conditions
Breast Cancer, Quality of Life
Interventions
Accelerated Partial Breast Irradiation (APBI), tamoxifen, anastrozole, exemestane, letrozole, fulvestrant, toremifene
Radiation · Drug
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
65 Years and older · Female only
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2032
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Oct 5, 2026, 12:58 AM EDT