达比加群酯;BIBR-1048-abs816405

一、产品概述

二、产品信息

Dabigatran selectively and reversibly inhibits human thrombin (Ki: 4.5 nM) as well as thrombin-induced platelet aggregation (IC50: 10 nM), while showing no inhibitory effect on other platelet-stimulating agents. Dabigatran selectively and reversibly inhibits human thrombin (Ki: 4.5 nM) as well as thrombin-induced platelet aggregation (IC50: 10 nM), while showing no inhibitory effect on other platelet-stimulating agents. Dabigatran inhibits thrombin generation in platelet-poor plasma (PPP) with IC50 of 0.56 μM, measured as the endogenous thrombin potential (ETP). Dabigatran demonstrates concentrationdependent anticoagulant effects in various species in vitro, doubling the activated partial thromboplastin time (aPTT), prothrombin time (PT) and ecarin clotting time (ECT) in human PPP at concentrations of 0.23, 0.83 and 0.18 μM, respectively.

Dabigatran prolongs the aPTT dose-dependently after intravenous administration in rats (0.3, 1 and 3 mg/kg) and rhesus monkeys (0.15, 0.3 and 0.6 mg/kg). Dabigatran etexilate (20 mg/kg, orally) produces less prolongation of K value and less decreases in angle and maximum amplitude than enoxaparin in swine. Dabigatran (0.01-0.1 mg/kg) reduces thrombus formation dose-dependently, with an ED50 (50% of the effective dose) of 0.033 mg/kg and complete inhibition at 0.1 mg/kg. Dabigatran etexilate (5-30 mg/kg) inhibits thrombus formation in a dose- and time-dependent manner, with maximum inhibition within 30 min of pretreatment, suggesting a rapid onset of action.

三、背景

四、制备和贮存

五、产品特点

六、注意事项