TABLE 6

Predicted relative contributions of CYP2C8, 2C9, 2C19, 2D6, and 3A4 to the overall oxidative metabolism of [14C]muraglitazar in the human liver at muraglitazar concentrations of 1, 2.5, 3.8, and 25 μM


Enzyme

FCYPi (Total Relative Contribution)a
1 μM
2.5 μM
3.8 μM
25 μM
%
CYP2C8 12.2 12.3 12.3 12.7
CYP2C9 14.7 14.8 14.8 15.0
CYP2C19 36.3 35.5 34.8 28.1
CYP2D6 0.55 0.57 0.60 0.77
CYP3A4 36.3 36.9 37.5 43.4
Total
100
100
100
100
  • a Based on the formation of M10, M11, M14, and M15, without consideration of formation of M1, M9, M16, and other minor radioactive peaks.