TABLE 1

Summary of human pharmacokinetic parameters of GSK2251052, M3, and total radioactivity after a single i.v. infusion dose of [14C]GSK2251052 (1500 mg)

MatrixAnalyteAUC(0-t)aAUC(0-∞)aCmaxaCLaVssaT1/2bTmaxb
µg ⋅ h/mlµg.h/mlµg/mll/hlhh
PlasmaGSK225105272.3 (7.34)72.5 (7.41)24.6 (14.5)20.7 (7.41)197 (8.87)11.6 (9.96–12.1)0.917 (0.50–0.92)
M3101 (12.1)103 (12.1)1.77 (9.77)NANA77.3 (68.1–78.5)7.00 (5.00–24.0)
Radioactivity191 (10.0)195 (9.90)24.3 (16.1)7.70 (9.90)348 (12.6)96.0 (86.2–117)0.917 (0.92–0.92)
Whole bloodRadioactivity141 (20.8)193 (21.1)43.7 (10.2)7.79 (21.1)116 (17.8)14.3 (7.28–16.1)0.917 (0.92–0.92)
  • %CV, % coefficient of variation; NA, not applicable.

  • a Geometric mean (%CV).

  • b Median (range).