TABLE 1

Summary of Studies for Pharmacokinetics, Distribution, and Metabolism in Animals

Study typeDurationRoute of administrationDose or concentration
Studies in rats
 Preliminary pharmacokineticsSingle doseIntravenous1 mg/kg
 Distribution (brain exposure)Single doseIntravenous0.1 mg/kg
 Distribution and metabolism in plasma and brainSingle doseIntravenous1 mg/kg
In vitro studies
 Brain and plasma protein binding (interspecies)1 μM
 In vitro permeation through the caco-2 cell model2 μM
 Intrinsic clearance in microsomes (interspecies)1 μM (rhesus), 5 μM (mouse, rat, and human)
 Metabolism in microsomes (interspecies)1 μM