PMRT was not identified to be an independent factor of LRFS (HR 0.429; 95% CI, 0.097–1.898; p = 0.265), DFS (HR 0.781; 95% CI, 0.413–1.477; p = 0.448), DMFS (HR 0.826; 95% CI, 0.416–1.641; p = 0.585), OS (HR 0.555; 95% CI, 0.227–1.354; p = 0.195) or BCSS (HR 0.585; 95% CI, 0.237–1.443; p = 0.224) in post‐chemotherapy ypT1‐2ypN1 BC patients from the multivariate analysis (Table 2). This evidence concerns the gene RAB1A and breast cancer.