Patient age (P=0.65), tumour size (P=0.7), histological subtype (P=0.58), tumour grade (P=0.112), HER2 status (P=0.354), progesterone receptor status (P=0.116) and Ki67 (P=0.71) did not predict response to anthracycline-based therapy. This evidence concerns the gene PGR and neoplasm.