RCT: Elective internal mammary node irradiation does not increase disease-free survival or overall survival in most women with node-positive breast cancer.

Effect of Elective Internal Mammary Node Irradiation on Disease-Free Survival in Women With Node-Positive Breast Cancer: A Randomized Phase 3 Clinical Trial – JAMA Oncology (free for a limited period)

Commentary: No Survival Benefit for Internal Mammary Node Irradiation in Breast Cancer — Women with medially or centrally located tumors may be candidates, however, says researcher – MedPage Today (free registration required)

Commentary on Twitter

Phase III randomized study evaluated the role of internal mammary node irradiation (IMNI) in node-positive #breastcancer. IMNI did not improve the DFS in unselected patients, but did improve DFS in patients with medially or centrally located tumors https://t.co/tw4ZrHn5wn pic.twitter.com/34ye3TR9MA

— JAMA Oncology (@JAMAOnc) October 25, 2021