TABLE 6

Inhibitory activities of lenvatinib and metabolites on the phthalazine oxidation activity of AO

Data represent the mean of triplicate determinations.

InhibitoraConcentrationRemaining Activity (% of control)IC50
μMμM
Control0100.0NA
Lenvatinib10063.8>100
1084.9
M210038.811.6
1055.4
M310030.430.8
1046.2
M2′100109.5>100
10100.5
M3′5095.0>50
1098.1
Raloxifene0.0114.50.0035
0.00182.5
  • NA, not analyzed.

  • a Concentration of phthalazine as substrate is 10 μM.