ERBB2 and breast carcinoma: With eribulin for locally recurrent or metastatic HER2 negative breast cancer, RR was 13–29%, CBR was 23–52%, and the median progression-free survival (PFS) was 3.7–6.8 months (McIntyre et al. 2014; Aogi et al. 2012; Cortes et al. 2011).