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Study identifier: NCT06677944 Synced from ClinicalTrials.gov · July 28, 2026
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Preoperative Partial Breast Irradiation in Early-Stage Breast Cancer

Condition: Breast Cancer · Ductal Carcinoma in Situ · Invasive Breast Cancer  ·  Sponsor: Yonsei University

PhasePhase 2
Planned participants47
Who can joinFemale, 45 Years to no upper limit
Healthy volunteersNo

About this study

In the management of early breast cancer patients, postoperative radiotherapy following breast-conserving surgery has been established as the standard treatment. Over the past two decades, significant changes have occurred in radiotherapy for breast cancer, encompassing dose fractionation methods, radiotherapy techniques, and delineation of the radiation field. Hypofractionated radiotherapy has been reported in numerous randomized phase 3 studies to show equivalent tumor control rates, reduced acute side effects, and similar late side effects compared to conventional fractionation. Among hypofractionated radiotherapy approaches, particularly in early-breast cancer, accelerated partial breast irradiation (APBI) may be chosen over whole breast irradiation (WBI). This approach is based on data indicating that the majority of local recurrences in breast cancer occur around the site of the primary tumor. By targeting radiation to the involved breast region, it becomes possible to increase the dose per fraction while shortening the overall treatment duration due to the smaller radiation treatment volume. While careful patient selection is crucial, multiple clinical studies have demonstrated that APBI, particularly after breast-conserving surgery, yields satisfactory local control rates comparable to WBI. This is accompanied by reduced side effects, improved convenience, enhanced quality of life, and potential cost savings. Traditionally, APBI has been administered after surgery, b…

This description comes directly from the study's public registry record.

Talk to the study team

Yong Bae Kim  ·  82-2-2228-8106  ·  ybkim3@yuhs.ac

Always discuss trial participation with your own doctor first.

Locations (1)

Department of Radiation Oncology, Yonsei University College of MedicineSeoul, South KoreaRecruiting

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Source record: clinicaltrials.gov/study/NCT06677944