TABLE 1.
Estimated compartmental pharmacokinetic parameters of caspofungin in plasmaa
| Drug dose (mg/kg) | Cmax (μg/ml) | Cmin (24 h) (μg/ml) | AUC0–∞ (μg/ml · h) | Vss (liter/kg) | CL (liter/h/kg) | t1/2αb (h) | t1/2β (h) | t1/2γ∗ (h) |
|---|---|---|---|---|---|---|---|---|
| Single dose | ||||||||
| 1 | 20.02 ± 1.18 | 0.00 ± 0.00 | 20.57 ± 0.89 | 0.239 ± 0.011 | 0.050 ± 0.002 | 0.09 ± 0.00 | 2.00 ± 0.06 | 31.61 ± 0.12 |
| 3 | 60.47 ± 8.49 | 0.00 ± 0.00 | 47.14 ± 3.60 | 0.277 ± 0.033 | 0.068 ± 0.005 | 0.05 ± 0.00 | 1.84 ± 0.07 | 30.23 ± 1.19 |
| 6 | 123.40 ± 5.17 | 0.10 ± 0.00 | 119.30 ± 10.91 | 0.275 ± 0.006 | 0.053 ± 0.006 | 0.11 ± 0.01 | 1.85 ± 0.14 | 26.19 ± 1.29 |
| Multiple dose | ||||||||
| 1 | 16.01 ± 0.61 | 0.00 ± 0.00 | 13.15 ± 2.37 | 0.299 ± 0.011 | 0.086 ± 0.017 | 0.09 ± 0.01 | 1.62 ± 0.21 | 31.87 ± 0.18 |
| 3 | 51.05 ± 4.59 | 0.18 ± 0.18 | 63.70 ± 21.34 | 0.378 ± 0.050 | 0.065 ± 0.015 | 0.09 ± 0.01 | 2.20 ± 0.37 | 34.77 ± 3.09 |
| 6 | 105.52 ± 8.92 | 0.63 ± 0.26 | 158.43 ± 15.58 | 0.351 ± 0.016 | 0.043 ± 0.004 | 0.10 ± 0.00 | 3.53 ± 0.48 | 30.86 ± 0.96 |
All values represent the means ± standard errors of the means of values three rabbits each. Abbreviations: Cmin(24 h), plasma concentration at the end of the dosing interval (24 h); t1/2α distributional half-life; t1/2β, apparent elimination half-life; t1/2γ, terminal elimination half-life.
P ⩽ 0.05 for the comparison among dosage groups by ANOVA.