Individual (A–C) and mean ± SD (D) serum concentration–time profiles of PF-05280014, trastuzumab-EU and trastuzumab-US following a single dose of 6 mg kg−1 in healthy subjects. SD, standard deviation. A, B and C: , median; , individual; D: •, PF-02580014; ▪, trastuzumab-EU; ▴, trastuzumab-US