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Randomized Study of Elective Regional Lymph Node Irradiation in N1 Breast Cancer

Breast Neoplasm Clinical Trial

Official title:
A Phase III Prospective Randomized Study of Elective Regional Lymph Node Irradiation in Pathologic N1 Breast Cancer Patients Treated With Breast Conserving Surgery

Clinical Trial Summary

This study evaluates the impact of elective regional lymph node irradiation on N1 breast cancer patients receiving post-lumpectomy radiotherapy and anthracycline plus taxane (AT)-based chemotherapy. We randomly assign patients having one to three metastatic lymph nodes (pN1) after breast-conserving surgery (BCS) and AT-based chemotherapy to undergo either whole-breast and regional nodal irradiation (WB+RNI group) or whole-breast irradiation alone (WBI group).

Clinical Trial Description

Objective: - Compare the effect of post-BCS WBI vs. WB+RNI on disease-free survival in pN1 breast cancer patients who received AT-based chemotherapy. - Evaluate the impact of WBI or WB+RNI according to molecular subtype of tumor. - Compare the treatment-related toxicities between the WBI and WB+RNI. - Compare the patient's quality of life between the WBI and WB+RNI. Outline: This is a a randomized, multi-center, phase III study. Patients are stratified according to molecular subtype of tumor (luminal A vs luminal vs luminal HER2 vs HER2-enriched vs basal-like), axillary lymph node management (sentinel lymph node biopsy [SLN] only vs axillary lymph node dissection+/- SLN) and participating institutions. Patients are randomized to one of two treatment arms. - Arm I: Patients receive WB+RNI. - Arm II: Patients receive WBI alone. Arm circumference and quality of life (EORTC QLQ-C30 & EORTC QLQ-BR23) are assessed within 2 weeks prior to randomization, during the last week of radiotherapy, at 3 months after completion of radiotherapy, and then annually thereafter for five years. Patients are followed at 3 months after completion of radiotherapy and annually thereafter for seven years. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03269981
Study type Interventional
Source Samsung Medical Center
Contact
Status Active, not recruiting
Phase N/A
Start date April 1, 2017
Completion date December 30, 2029
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