PMID: 16637459Apr 28, 2006Paper

Emerging anticoagulants: mechanism of action and future potential

Vnitr̆ní lékar̆ství
P Klement, J Rak

Abstract

Medical needs associated with diverse thromboembolic conditions are not fully met by currently available anticoagulants. Of those, unfractionated heparin (UFH) is gradually replaced by low molecular weight heparin (LMWH) for prevention and treatment of venous thromboembolism and acute coronary syndromes, along with supportive treatment with oral anticoagulants, such as warfarin derivatives. While generally effective these agents have several shortcomings involving compliance, delivery, efficacy and safety considerations in various disease settings, and for these reasons new anticoagulants are sought, to target more specifically the critical effectors and steps in the blood coagulation process, namely: (i) initiation, (ii) propagation and (iii) the phase of thrombin activity. The emerging agents that block tissue factor/factor VIIa-dependent initiation phase of the coagulation cascade, include: recombinant tissue factor pathway inhibitor (rTFPI), nematode anticoagulant peptide (NAPc2), active site-blocked factor VIIa (FVIIai) and TF targeting antibodies. Some of them are currently evaluated in clinical trials with promising results. Propagation phase of thrombus formation (e.g. the activity of factors IXa, Xa, VIIIa or Va) is ta...Continue Reading

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