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Key clinical point: Recurrence-free survival after sentinel lymph node biopsy (SLNB) yielded noninferior outcomes compared to complete axillary lymph node dissection (ALND) in patients with clinically node-negative breast cancer (BC) and one or two sentinel-node macrometastases.
Major finding: The estimated 5-year recurrence-free survival was comparable in the SLNB alone vs completion ALND group (89.7% [95% CI 87.5%-91.9%] vs 88.7% [95% CI 86.3%-91.1%]), with the hazard ratio for recurrence or death being significantly below the noninferiority margin (0.89; P < .001 for non-inferiority).
Study details: Findings are from the noninferiority trial, SENOMAC, which included 2540 patients with clinically node-negative primary T1 to T3 BC with one or two sentinel lymph-node macrometastases who were randomly assigned to undergo SLNB alone (n = 1335) or completion ALND (n = 1205).
Disclosures: This study was supported by the Swedish Research Council and others. Oreste D. Gentilini declared serving as a consultant for various sources. The other authors declared no conflicts of interest.
Source: de Boniface J, Tvedskov TF, Rydén L, et al, for the SENOMAC Trialists’ Group. Omitting axillary dissection in breast cancer with sentinel-node metastases. N Engl J Med. 2024;390:1163-1175 (Apr 3). doi: 10.1056/NEJMoa2313487 Source
Key clinical point: Recurrence-free survival after sentinel lymph node biopsy (SLNB) yielded noninferior outcomes compared to complete axillary lymph node dissection (ALND) in patients with clinically node-negative breast cancer (BC) and one or two sentinel-node macrometastases.
Major finding: The estimated 5-year recurrence-free survival was comparable in the SLNB alone vs completion ALND group (89.7% [95% CI 87.5%-91.9%] vs 88.7% [95% CI 86.3%-91.1%]), with the hazard ratio for recurrence or death being significantly below the noninferiority margin (0.89; P < .001 for non-inferiority).
Study details: Findings are from the noninferiority trial, SENOMAC, which included 2540 patients with clinically node-negative primary T1 to T3 BC with one or two sentinel lymph-node macrometastases who were randomly assigned to undergo SLNB alone (n = 1335) or completion ALND (n = 1205).
Disclosures: This study was supported by the Swedish Research Council and others. Oreste D. Gentilini declared serving as a consultant for various sources. The other authors declared no conflicts of interest.
Source: de Boniface J, Tvedskov TF, Rydén L, et al, for the SENOMAC Trialists’ Group. Omitting axillary dissection in breast cancer with sentinel-node metastases. N Engl J Med. 2024;390:1163-1175 (Apr 3). doi: 10.1056/NEJMoa2313487 Source
Key clinical point: Recurrence-free survival after sentinel lymph node biopsy (SLNB) yielded noninferior outcomes compared to complete axillary lymph node dissection (ALND) in patients with clinically node-negative breast cancer (BC) and one or two sentinel-node macrometastases.
Major finding: The estimated 5-year recurrence-free survival was comparable in the SLNB alone vs completion ALND group (89.7% [95% CI 87.5%-91.9%] vs 88.7% [95% CI 86.3%-91.1%]), with the hazard ratio for recurrence or death being significantly below the noninferiority margin (0.89; P < .001 for non-inferiority).
Study details: Findings are from the noninferiority trial, SENOMAC, which included 2540 patients with clinically node-negative primary T1 to T3 BC with one or two sentinel lymph-node macrometastases who were randomly assigned to undergo SLNB alone (n = 1335) or completion ALND (n = 1205).
Disclosures: This study was supported by the Swedish Research Council and others. Oreste D. Gentilini declared serving as a consultant for various sources. The other authors declared no conflicts of interest.
Source: de Boniface J, Tvedskov TF, Rydén L, et al, for the SENOMAC Trialists’ Group. Omitting axillary dissection in breast cancer with sentinel-node metastases. N Engl J Med. 2024;390:1163-1175 (Apr 3). doi: 10.1056/NEJMoa2313487 Source