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Betrixaban maleate

CAS No. : 936539-80-9

MCE 站：Betrixaban maleate

产品活性：Betrixaban (PRT054021) maleate 是一种有效的，具有口服活性的选择性 factor Xa (fXa) 抑制剂，IC₅₀ 为 1.5 nM。Betrixaban maleate 具有抗血栓形成效果。

研究领域：Metabolic Enzyme/Protease

作用靶点：Factor Xa

In Vitro: Betrixaban (PRT054021) shows IC₅₀ of 8.9 μM in patch clamp hERG assays.
Betrixaban shows an IC₅₀ ａnd a K_i of 6.3 μM ａnd 3.5 μM for the plasma kallikrein, respectively.
Betrixaban (hERG K_i 1.8 μM) exhibits significantly lower hERG activity than all the others (hERG K_i0.5 μM).
Betrixaban (5-25 ng/mL) inhibits thrombin generation.

In Vivo: Betrixaban (0.5 mg/kg, i.v.; 2.5 mg/kg, p.o.) has bioavailability of 51.6% in dog.
Betrixaban (0.75 mg/kg, i.v.; 7.5 mg/kg, p.o.) has bioavailability of 58.7% in monkey.
Betrixaban mediated whole-blood INR increase is reversed by r-Antidote. After i.v. infusion for 30 min, the total plasma concentrations of Betrixaban is 0.2±0.01 μM, ａnd the percentages of unbound inhibitor is 40%±7.2%. After administration of r-Antidote, the total plasma concentration increased to 2.0±0.4 μM, ａnd the percentage of unbound inhibitor declined to 0.3%±0.1%.
Betrixaban (3 mg/kg) shows nearly comparable inhibition of thrombus mass to enoxaparin 1.6 mg/kg (76% vs 96% inhibition) in the rabbit abdominal vena cava model of clot accretion on cotton threads.
Betrixaban (19.1 mg/kg) is at least as effective at maintaining patency as enoxaparin 7.6 mg/kg ａnd clopidogrel 3 mg/kg/d (90% vs 70% vs 80% patency, respectively) in the ferric chloride injury model of rodent carotid artery.

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