An inhibitory anti-factor IX antibody effectively reduces thrombus formation in a rat model of venous thrombosis.

Autor: Feuerstein GZ; SmithKline Beecham Pharmaceuticals, Department of Cardiovascular Pharmacology, King of Prussia, PA, USA., Toomey JR, Valocik R, Koster P, Patel A, Blackburn MN
Jazyk: angličtina
Zdroj: Thrombosis and haemostasis [Thromb Haemost] 1999 Nov; Vol. 82 (5), pp. 1443-5.
Abstrakt: An inhibitory anti-factor IX/IXa antibody (BC2) has been investigated as an anti-thrombotic agent in a rat venous thrombosis model. The treatment of rats post-injury with a single bolus dose of BC2 (3 mg/kg, i.v.) resulted in an approximately 4 fold reduction in venous thrombus mass (P = 0.043). This efficacy was matched by a minimal (<2.5 fold) prolongation of the aPTT and had no effect on the prothrombin time (PT). Heparin by comparison, given as a bolus followed by continuous infusion, at doses comparable in efficacy at reducing thrombus formation, prolonged the aPTT >50 fold. These results demonstrate that the anti-factor IX/IXa antibody (BC2), when compared to heparin, can effectively reduce venous thrombosis with less disruptive consequences on blood clotting.
Databáze: MEDLINE