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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
Completed Not applicable Interventional

IORT (Intra-operative Radiation Therapy) in Early Stage Breast Cancer

NCT01988870
View directory record Official record
Conditions
Breast Cancer
Interventions
Intra-operative Radiation Therapy (IORT)
Radiation
Lead sponsor
Shayna Showalter, MD
Other
Eligibility
50 Years and older · Female only
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 21, 2016 · Synced Sep 16, 2026, 8:45 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 16, 2026, 8:45 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 16, 2026, 8:45 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 16, 2026, 8:45 PM 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 10, 2013 · Synced Sep 16, 2026, 8:45 PM EDT
Active, not recruiting Not applicable Interventional

Single Fraction Accelerated Partial Breast Irradiation vs. Five Fraction Accelerated Partial Breast Irradiation for Low-risk Stage 0 and I Breast Carcinoma

NCT04849871
View directory record Official record
Conditions
Breast Carcinoma, Breast Cancer, Stage 0 Breast Cancer, Stage I Breast Cancer
Interventions
External Beam Accelerated Partial Breast Irradiation
Radiation
Lead sponsor
Washington University School of Medicine
Other
Eligibility
50 Years and older · Female only
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2029
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 16, 2026, 8:45 PM EDT
Completed Phase 4 Interventional

Use of the Contura™ Catheter in Intermediate-Risk, Pathological Stage 0, I, or II (Up to 3.0 cm) Breast Cancer Patients

NCT00882089
View directory record Official record
Conditions
Breast Cancer
Interventions
Contura catheter
Device
Lead sponsor
Cancer Center of Irvine
Other
Eligibility
18 Years and older · Female only
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Jan 24, 2018 · Synced Sep 16, 2026, 8:45 PM EDT
Completed Phase 2 Interventional Results available

Accelerated Partial Breast Radiation Therapy Using High-Dose Rate Brachytherapy in Treating Patients With Early Stage Breast Cancer After Surgery

NCT02526498
View directory record Official record
Conditions
Ductal Breast Carcinoma In Situ, Estrogen Receptor Positive, Invasive Breast Carcinoma, Progesterone Receptor Positive, Stage IA Breast Cancer, Stage IB Breast Cancer, Stage IIA Breast Cancer
Interventions
Accelerated Partial Breast Irradiation, High-Dose Rate Brachytherapy, Questionnaire Administration
Radiation · Other
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
45 Years and older · Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
10
States / cities
Gilbert, Arizona • La Jolla, California • Royal Oak, Michigan + 6 more
Source: ClinicalTrials.gov public record
Updated May 14, 2023 · Synced Sep 16, 2026, 8:45 PM EDT
Completed Phase 1Phase 2 Interventional Results available

APBI Proton Feasibility and Phase II Study

NCT01839838
View directory record Official record
Conditions
Stage IA-IIA Breast Cancer
Interventions
Proton Therapy
Radiation
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
50 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 6, 2024 · Synced Sep 16, 2026, 8:45 PM 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 16, 2019 · Synced Sep 16, 2026, 8:45 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 16, 2026, 8:45 PM 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 16, 2026, 8:45 PM EDT
Recruiting Phase 2 Interventional

Real-Time MRI-Guided 3-Fraction Accelerated Partial Breast Irradiation in Early Breast Cancer

NCT03936478
View directory record Official record
Conditions
Breast Cancer, DCIS, LCIS
Interventions
MRIdian Radiation Treatment Unit
Radiation
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
40 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2031
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 16, 2026, 8:45 PM EDT
Withdrawn Not applicable Interventional

Preoperative Accelerated Partial Breast Irradiation for Triple Negative Breast Cancer Using Proton Beam Scanning

NCT03340402
View directory record Official record
Conditions
Breast Cancer
Interventions
Accelerated Partial Breast Irradiation, AlignRT
Radiation · Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
40 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 13, 2019 · Synced Sep 16, 2026, 8:45 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 16, 2026, 8:45 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 16, 2026, 8:45 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 16, 2026, 8:45 PM EDT
Recruiting Phase 2 Interventional

ASHBY: Accelerated Super-Hypofractionated Breast Brachytherapy

NCT06185205
View directory record Official record
Conditions
Breast Cancer
Interventions
Accelerated partial breast irradiation
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
45 Years to 79 Years · Female only
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2033
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 20, 2025 · Synced Sep 16, 2026, 8:45 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 16, 2026, 8:45 PM EDT
Active, not recruiting Phase 2 Interventional

Evaluation of a Once Per Day Regimen of Accelerated Partial Breast Irradiation for Improved Breast Appearance in Pts w/Low Risk, Hormone Responsive Brst Ca

NCT06008158
View directory record Official record
Conditions
Anatomic Stage 0 Breast Cancer AJCC v8, Anatomic Stage IA Breast Cancer AJCC v8, Estrogen Receptor-Positive Breast Carcinoma, HER2-Negative Breast Carcinoma
Interventions
Accelerated Partial Breast Irradiation
Radiation
Lead sponsor
City of Hope Medical Center
Other
Eligibility
40 Years and older · Female only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Jun 28, 2026 · Synced Sep 16, 2026, 8:45 PM EDT
Recruiting Not applicable Interventional

Personalized Prone Immobilization for Accelerated Partial Breast Radiotherapy

NCT07711847
View directory record Official record
Conditions
Invasive Breast Cancer Early Stages, Ductal Carcinoma In Situ, DCIS
Interventions
VENUS SHELL™ immobilization device
Device
Lead sponsor
HeroSupport SA
Industry
Eligibility
40 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 16, 2026, 8:45 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 16, 2026, 8:45 PM 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 30, 2025 · Synced Sep 16, 2026, 8:45 PM EDT