TABLE 2

Area under the concentration-time curve for erlotinib depletion and desmethyl erlotinib formation in primary cultures of human hepatocytes treated with vehicle (DMSO), ritonavir, or ketoconazole and incubated with erlotinib (5 μM)

TreatmentLiver IDAUC 0–48h
ErlotinibDesmethyl Erlotinib
μg⋅h/mlμg⋅h/ml
DMSOHH 201122.710.2
Hu 152242.79.7
HH 201411.96.0
Hu 159425.34.1
H 116131.33.4
Hu 159523.73.2
Mean ± S.D.26.3 ± 10.26.1 ± 3.2
RitonavirHH 2011102.23.3
Hu 1522190.84.4
HH 201485.71.7
Hu 159484.91.4
H 116180.31.1
Hu 159576.71.2
Mean ± S.D.103.4 ± 43.7*2.2 ± 1.4*
Ratio to DMSO4.2 ± 1.60.4 ± 0.1
KetoconazoleHu 159458.93.9
H 116161.04.1
Hu 159544.93.2
Mean ± S.D.55.0 ± 8.73.7 ± 0.5
Ratio to DMSO2.1 ± 0.21.1 ± 0.1
  • * P < 0.05 versus DMSO; nonparametric Friedman analysis of variance followed by Dunn’s multiple comparison test.