Some PK studies including infants have been published. No effect of age on the PK of isotretinoin has been found.
Table 1
Table 1 Model derived dosing nomogram for busulfan to achieve a target total AUCday0-4 of 90
mg/L*h
(obtained from Bartelink et al. Clin Pharmacokinet; 2012:51: 331-345)
BW(kg)
Dose (mg/kg/day)
3
3.8
5
4.7
7
5.1
8-13
5.2
15-16
5.1
Figure 1
Figure 2
Figure 3
Figure 3 Vincristine exposure (AUC) values observed in neonate and infant patients following doses of >0.05mg/kg and doses of ≥0.05mg/kg, as compared to exposures observed in older children receiving a dose of 1.5mg/m2 (**** p <0.0001). Blue dashed lines indicate proposed therapeutic window.