TABLE 2

Pharmacokinetic parameters of ERY in rats after i.v. dosing with and without rifampin or GG918 coadministration

Data are depicted as the mean ± S.D., n = 6.


PK Parameters

Rifampin Group

GG918 Group
ERY Only
With Rifampin
ERY Only
With GG918
t1/2 (min) 151 ± 27 219 ± 47* 124 ± 33 250 ± 77*
AUC0-inf (μg/ml · min) 224 ± 55 348 ± 73** 240 ± 29 537 ± 221**
CLblood (ml/min/kg) 47.2 ± 12.5 29.8 ± 6.1* 42.1 ± 5.7 21.7 ± 9.0**
MRT0-inf (min) 147 ± 27 237 ± 66* 109 ± 28 242 ± 135*
Vss (l/kg) 6.30 ± 1.12 6.80 ± 1.11 4.51 ± 0.98 3.94 ± 1.28
CLbiliary (ml/min/kg) 15.5 ± 2.9 7.23 ± 1.46*** 11.2 ± 2.0 3.50 ± 1.16***
CLother (ml/min/kg) 25.4 ± 9.0 15.3 ± 6.7 26.9 ± 5.8 17.0 ± 8.5*
CLrenal (ml/min/kg) 6.26 ± 2.18 7.21 ± 2.44 4.02 ± 0.93 1.18 ± 0.61***
CLrenal, met (ml/min/kg)
0.644 ± 0.127
0.691 ± 0.090
0.691 ± 0.192
0.421 ± 0.183*
  • p = 0.05, * p < 0.05, ** p < 0.01, *** p < 0.001, significantly different from ERY only.