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Internal Mammary and Medial Supraclavicular Irradiation in Breast Cancer

Open access
Poortmans, Philip M., Collette, Sandra, Kirkove, Carine, Van Limbergen, Erik, Budach, Volker, Struikmans, Henk, Collette, Laurence, Fourquet, Alain, Maingon, Philippe, Valli, Mariacarla, De Winter, Karin, Marnitz, Simone, Barillot, Isabelle, Scandolaro, Luciano, Vonk, Ernest, Rodenhuis, Carla, Marsiglia, Hugo, Weidner, Nicola, van Tienhoven, Geertjan, Glanzmann, Christoph, Kuten, Abraham, Arriagada, Rodrigo, Bartelink, Harry, Van den Bogaert, Walter·2015·New England Journal of Medicine

Abstract

BACKGROUND: The effect of internal mammary and medial supraclavicular lymph-node irradiation (regional nodal irradiation) added to whole-breast or thoracic-wall irradiation after surgery on survival among women with early-stage breast cancer is unknown. METHODS: We randomly assigned women who had a centrally or medially located primary tumor, irrespective of axillary involvement, or an externally located tumor with axillary involvement to undergo either whole-breast or thoracic-wall irradiation in addition to regional nodal irradiation (nodal-irradiation group) or whole-breast or thoracic-wall irradiation alone (control group). The primary end point was overall survival. Secondary end points were the rates of disease-free survival, survival free from distant disease, and death from breast cancer. RESULTS: Between 1996 and 2004, a total of 4004 patients underwent randomization. The majority of patients (76.1%) underwent breast-conserving surgery. After mastectomy, 73.4% of the patients in both groups underwent chest-wall irradiation. Nearly all patients with node-positive disease (99.0%) and 66.3% of patients with node-negative disease received adjuvant systemic treatment. At a median follow-up of 10.9 years, 811 patients had died. At 10 years, overall survival was 82.3% in the nodal-irradiation group and 80.7% in the control group (hazard ratio for death with nodal irradiation, 0.87; 95% confidence interval [CI], 0.76 to 1.00; P=0.06). The rate of disease-free survival was 72.1% in the nodal-irradiation group and 69.1% in the control group (hazard ratio for disease progression or death, 0.89; 95% CI, 0.80 to 1.00; P=0.04), the rate of distant disease-free survival was 78.0% versus 75.0% (hazard ratio, 0.86; 95% CI, 0.76 to 0.98; P=0.02), and breast-cancer mortality was 12.5% versus 14.4% (hazard ratio, 0.82; 95% CI, 0.70 to 0.97; P=0.02). Acute side effects of regional nodal irradiation were modest. CONCLUSIONS: In patients with early-stage breast cancer, irradiation of the regional nodes had a marginal effect on overall survival. Disease-free survival and distant disease-free survival were improved, and breast-cancer mortality was reduced. (Funded by Fonds Cancer; ClinicalTrials.gov number, NCT00002851.).

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Metadata

Authors
Poortmans, P. M., Collette, S., Kirkove, C., Van Limbergen, E., Budach, V., Struikmans, H., Collette, L., Fourquet, A., Maingon, P., Valli, M., De Winter, K., Marnitz, S., Barillot, I., Scandolaro, L., Vonk, E., Rodenhuis, C., Marsiglia, H., Weidner, N., van Tienhoven, G., Glanzmann, C., Kuten, A., Arriagada, R., Bartelink, H., & Van den Bogaert, W.
Venue
New England Journal of Medicine
Published
2015-07-23
Volume
373
Issue
4
Pages
317-327
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W1770259999
Cited by
1,005
References
1
FWCI
40.73
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Internal Mammary and Medial Supraclavicular Irradiation in Breast Cancer. https://app.cochat.ai/papers/10.1056/nejmoa1415369
The paper
Poortmans, P. M., Collette, S., Kirkove, C., Van Limbergen, E., Budach, V., Struikmans, H., Collette, L., Fourquet, A., Maingon, P., Valli, M., De Winter, K., Marnitz, S., Barillot, I., Scandolaro, L., Vonk, E., Rodenhuis, C., Marsiglia, H., Weidner, N., van Tienhoven, G., . . . Van den Bogaert, W. (2015). Internal Mammary and Medial Supraclavicular Irradiation in Breast Cancer. New England Journal of Medicine. https://doi.org/10.1056/nejmoa1415369

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.