The PK profiles are indicated in Figure 19 and Table 54. After single or multiple daily oral doses of neratinib, Cmax and AUC increased with increasing dose. There was no major accumulation of neratinib after repeated daily administration (mean accumulation ratios were 1.19 to 1.45 at the doses of 80 to 320 mg). Mean apparent oral clearanee ranged from 2.5 to 12 L/h/kg. Mean half-life following a single dose on day 1 ranged from 11 to 16 hours.