Clinical Trial

Postmastecomy Internal Mammary Nodal Irradiation for High-risk Breast Cancer Patients

Active, Not Recruiting Phase 3
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Summary
The purpose of this study is to evaluate the impact of internal mammary nodal irradiation on disease-free survival in high-risk breast cancer patients treated with mastectomy or breast-conserving surgery.
Protocol Amendment History 4 amendments
This ClinicalTrials.gov record has been amended 4 times since 2020-03-23; most recent amendment 2026-01-10.
Status change: Recruiting → Active, Not Recruiting 2026-01-10
Trial Details
NCT Number NCT04320979
Lead Sponsor Cancer Institute and Hospital, Chinese Academy of Medical Sciences
Collaborators: Hebei Medical University Fourth Hospital, Shanghai Zhongshan Hospital, Zhejiang Cancer Hospital, Beijing Hospital, Liaoning Cancer Hospital & Institute, Jilin Provincial Tumor Hospital, Tangshan People's Hospital, The First Hospital of Jilin University, West China Hospital, Peking Union Medical College Hospital, Henan Cancer Hospital, Zhongnan Hospital, Peking University Cancer Hospital & Institute, Fudan University, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Air Force Military Medical University, China, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Chinese Academy of Medical Sciences, Fuwai Hospital, LanZhou University, Jiangsu Province Hospital of Traditional Chinese Medicine, Cancer Hospital Chinese Academy of Medical Science, Shenzhen Center
Conditions Breast Cancer
Enrollment 2,400 participants
Start Date 2020-05-08
Primary Completion 2025-11-01 (estimated)
Study Completion 2030-05 (estimated)
Updated on ClinicalTrials.gov 2026-01-13