Edoxaban (DU-176b) also inhibits rat, cynomolgus monkey and rabbit FXa with Ki values of 6.90 nM, 0.715 nM and 0.457 nM, respectively.
Prothrombin time (PT), activated partial thromboplastin time (APTT) and thrombin time (TT) of human plasma are prolonged by Edoxaban (DU-176b) in a concentration-dependent manner, doubling PT and APTT at 0.256 and 0.508 μM, respectively. The double clotting time (CT2) for TT, however, was much higher (4.95 μM), reflecting its anti-thrombin activity. Thrombin-induced platelet aggregation is inhibited by a high concentration of Edoxaban (DU-176b) (IC50: 2.90 μM), reflecting its weak anti-thrombin activity.
Edoxaban is minimally metabolized (,4%) by the cytochrome P450 system (CYP3A4) and is a substrate for P-glycoprotein.