With HER2 negative breast cancer and residual disease after undergoing neoadjuvant chemotherapy:
To standard postsurgical treatment and capecitabine or placebo
The primary end point:
Was disease-free survival (DFS)
Secondary end points included:
Overall survival (OS)
DFS was longer in the capecitabine group than in the control group (placebo):
74.1% vs. 67.6% of the patients were alive and free from recurrence or second cancer at 5 years
Among patients with triple-negative disease:
DFS was 69.8% in the capecitabine group versus 56.1% in the control group
OS rate was 78.8% versus 70.3%
There is no role for tamoxifen or anastrozole in triple negative breast cancer
Residual disease after completion of neoadjuvant chemotherapy:
Is associated with worse outcomes
References
1. Masuda N, Lee SJ, Ohtani S, Im YH, Lee ES, Yokota I, et al. Adjuvant capecitabine for breast cancer after preoperative chemotherapy. N Eng J Med. 2017;376(22):2147-2159.
2. Symmans WF, Wei C, Gould R, Yu X, Zhang Y, Liu M, et al. Long-term prognostic risk after neoadjuvant chemotherapy associated with residual cancer burden and breast cancer subtype. J Clin Oncol. 2017;35(10):1049-1060.