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Showing 1–24 of 49 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Accelerated partial breast irradiation Clear all
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 10, 2013 · Synced Sep 12, 2026, 3:02 PM EDT
Completed Phase 4 Interventional

Electronic Xoft Intersociety Brachytherapy Trial: Electronic Brachytherapy (EBT) For Treatment of Early Stage Breast Cancer

NCT00742222
View directory record Official record
Conditions
Breast Cancer, Carcinoma, Lumpectomy, Ductal Carcinoma in Situ
Interventions
Electronic Brachytherapy, Intracavitary accelerated partial breast irradiation
Radiation
Lead sponsor
Xoft, Inc.
Industry
Eligibility
50 Years and older · Female only
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
8
States / cities
Tuscaloosa, Alabama • Montebello, California • Orange Park, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated May 16, 2016 · Synced Sep 12, 2026, 3:02 PM 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 13, 2012 · Synced Sep 12, 2026, 3:02 PM EDT
Terminated Phase 2 Interventional

Safety Study for Short-course Accelerated, Hypofractionated Partial Breast Radiotherapy (APBI) in Women With Early Stage Breast Cancer Using the Contura MLB

NCT01072838
View directory record Official record
Conditions
Breast Cancer
Interventions
APBI (Dose Escalation), Contura MLB Breast Brachytherapy Catheter
Radiation · Device
Lead sponsor
SenoRx, Inc.
Industry
Eligibility
50 Years and older · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
3
States / cities
Royal Oak, Michigan • New Brunswick, New Jersey • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 16, 2013 · Synced Sep 12, 2026, 3:02 PM 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 21, 2025 · Synced Sep 12, 2026, 3:02 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Accelerated Partial Breast Irradiation (APBI) Using Stereotactic Body Radiation Therapy (SBRT)

NCT04985032
View directory record Official record
Conditions
Ductal Carcinoma in Situ, Invasive Ductal Carcinoma of Female Breast
Interventions
stereotactic body radiation therapy
Radiation
Lead sponsor
RPCR, Inc.
Other
Eligibility
50 Years to 100 Years · Female only
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
2
States / cities
Stuart, Florida • Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Aug 4, 2022 · Synced Sep 12, 2026, 3:02 PM EDT
Active, not recruiting Not applicable Interventional

Accelerated Partial Breast Irradiation Study

NCT03437395
View directory record Official record
Conditions
Breast Cancer Female
Interventions
Balloon Brachytherapy, 3D Conformal External Beam Irradiation
Device · Radiation
Lead sponsor
Sentara Norfolk General Hospital
Other
Eligibility
50 Years and older · Female only
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2025
U.S. locations
1
States / cities
Harrisonburg, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 1, 2025 · Synced Sep 12, 2026, 3:02 PM EDT
Completed Not applicable Interventional Results available

4D Image-Guided Partial Breast Radiation in Stage 0 and l Breast Cancer

NCT01646346
View directory record Official record
Conditions
Breast Cancer
Interventions
4D Conformal Image-Guided Partial Breast RT
Radiation
Lead sponsor
Yale University
Other
Eligibility
50 Years and older · Female only
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 22, 2018 · Synced Sep 12, 2026, 3:02 PM EDT
Completed Not applicable Interventional

Partial Breast Radiation Therapy in Treating Women Undergoing Breast Conservation Therapy for Early-Stage Breast Cancer

NCT00599989
View directory record Official record
Conditions
Breast Cancer, Long-term Effects Secondary to Cancer Therapy in Adults, Skin Reactions Secondary to Radiation Therapy
Interventions
adjuvant therapy, conventional surgery, 3-dimensional conformal radiation therapy, brachytherapy, intracavitary balloon brachytherapy, proton beam radiation therapy
Procedure · Radiation
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years to 120 Years · Female only
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 8, 2020 · Synced Sep 12, 2026, 3:02 PM 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 10, 2024 · Synced Sep 12, 2026, 3:02 PM 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 22, 2026 · Synced Sep 12, 2026, 3:02 PM EDT
Recruiting Phase 2 Interventional

Study of 3-Day Partial Breast Radiation Therapy in Women With Breast Cancer

NCT04084730
View directory record Official record
Conditions
Invasive Ductal Breast Carcinoma, Invasive Ductal Carcinoma, Breast, DCIS, DCIS Grade 1, DCIS Grade 2, Breast Cancer
Interventions
Accelerated Partial Breast Irradiation
Radiation
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
45 Years and older · Female only
Enrollment
280 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
9
States / cities
Norwalk, Connecticut • Miami, Florida • Basking Ridge, New Jersey + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Sep 12, 2026, 3:02 PM EDT
Completed Not applicable Interventional

Conformal Partial Breast Irradiation With CyberKnife After Resection for Early Stage Breast Cancer

NCT01290835
View directory record Official record
Conditions
Breast Cancer
Interventions
Stereotactic radiotherapy delivered by CyberKnife, stereotactic radiotherapy
Radiation
Lead sponsor
Essentia Health
Other
Eligibility
60 Years to 60 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2025
U.S. locations
1
States / cities
Duluth, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 14, 2025 · Synced Sep 12, 2026, 3:02 PM EDT
Completed Not applicable Interventional Results available

Evaluation of Accelerated Partial Breast Brachytherapy

NCT00593346
View directory record Official record
Conditions
Breast Cancer
Interventions
brachytherapy
Radiation
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2013
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 28, 2015 · Synced Sep 12, 2026, 3:02 PM 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 24, 2018 · Synced Sep 12, 2026, 3:02 PM 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 2, 2024 · Synced Sep 12, 2026, 3:02 PM EDT
Active, not recruiting Phase 2 Interventional

Evaluating the Safety and Efficacy of a Novel Accelerated Partial Breast Irradiation Regimen

NCT05591547
View directory record Official record
Conditions
Breast Cancer
Interventions
IMRT/VMAT-Based Accelerated Partial Breast Irradiation
Radiation
Lead sponsor
Sanford Health
Other
Eligibility
50 Years and older · Female only
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
2
States / cities
Worthington, Minnesota • Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 12, 2026, 3:02 PM EDT
Completed Not applicable Interventional

Drain Placement for Seroma Prevention After Mammosite/SAVI Catheter Removal

NCT02390661
View directory record Official record
Conditions
Infected Seroma After Surgical Procedure
Interventions
Penrose drain placement
Device
Lead sponsor
Michigan State University
Other
Eligibility
45 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 11, 2019 · Synced Sep 12, 2026, 3:02 PM EDT
Recruiting Not applicable Interventional

Personalized Second Chance Breast Conservation (PSCBC): A Prospective Phase II Clinical Study

NCT04371913
View directory record Official record
Conditions
Breast Cancer
Interventions
600cGY x 5 fractions APBI, 270cGy x 15 fractions WBRT
Radiation
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
19 Years to 90 Years · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2035
U.S. locations
3
States / cities
Brooklyn, New York • New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Sep 12, 2026, 3:02 PM EDT
Completed Not applicable Interventional

Preoperative Accelerated Partial Breast Irradiation (APBI) for Women With Stage I and Select IIA Breast Cancer

NCT01014715
View directory record Official record
Conditions
Breast Cancer
Interventions
Phase II - Preoperative Radiation followed by Lumpectomy.
Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older · Female only
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2018
U.S. locations
3
States / cities
Baltimore, Maryland • Columbia, Maryland • Glen Burnie, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 11, 2019 · Synced Sep 12, 2026, 3:02 PM 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 Apr 30, 2026 · Synced Sep 12, 2026, 3:02 PM 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 4, 2026 · Synced Sep 12, 2026, 3:02 PM 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 25, 2026 · Synced Sep 12, 2026, 3:02 PM EDT