Abstract:
:Argatroban, a synthetic peptidomimetic antithrombin agent, is the first clinical anticoagulant solely to target thrombin. For some time, this drug has been used in Japan for the management of thromboembolic disorders. Recently, it has been approved in Japan for use in thrombotic and ischaemic stroke. Despite a large number of preclinical studies on the pharmacology of this agent, clinical trials in Europe and North America were only initiated in 1996. Argatroban produces anticoagulant effects comparable to therapeutic heparinisation at concentrations of approximately 1 microg/ml. At concentrations of 5-10 microg/ml, this agent produces adequate anticoagulation for inteventional cardiovascular procedures and prolongs the activated clotting time (ACT) to 400-600 s. The predictable anticoagulant effect of this agent is relatively short lasting, and may not warrant pharmacologic neutralisation in the majority of patients. However, patients with hepatic dysfunction may need some means of neutralisation. Unlike heparin, this drug produces its anticoagulant effects by direct inhibition of thrombin and thrombin-mediated processes. This agent is not influenced by endogenous factors such as platelet factor 4 and other proteins which bind heparin. Argatroban's use does not lead to the formation of antiplatelet antibodies. Thus, this drug is useful in the management of heparin induced thrombocytopenic (HIT) patients. Although argatroban was initially developed for the management of deep vein thrombosis (DVT), based on its pharmacologic properties, it can be developed for safer anticoagulation in such indications as acute coronary syndromes, as an adjunct to thrombolytics, thrombotic and ischaemic stroke and inflammatory diseases resulting in thrombotic complications.
journal_name
Expert Opin Investig Drugsjournal_title
Expert opinion on investigational drugsauthors
Jeske W,Walenga JM,Lewis BE,Fareed Jdoi
10.1517/13543784.8.5.625subject
Has Abstractpub_date
1999-05-01 00:00:00pages
625-54issue
5eissn
1354-3784issn
1744-7658journal_volume
8pub_type
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