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  • Title: [Anagrelide--new antiplatelet drug].
    Author: Robak T, Treliński J, Hołub A.
    Journal: Acta Haematol Pol; 1994; 25(4):309-15. PubMed ID: 7847031.
    Abstract:
    Anagrelide is a quinazoline compound developed as a potent inhibitor of platelet aggregation. During studies in human it has produced rapid and selective thrombocytopenia and has therefore been evaluated for use in conditions associated with thrombocythaemia. Anagrelide significantly inhibits human megakaryocyte colony development in vitro by preventing full megakaryocyte maturation, and inhibits platelet aggregation as a result of potent inhibition of cyclic adenosine monophosphate (cAMP) phosphodiesterase activity. In 60 to 93% of patients with essential or myeloproliferative thrombocythaemia anagrelide produces sustain reductions in platelet counts and also reduces the incidence of disease-related symptoms. Most adverse effects are related to its vasodilatory or positive inotropic properties. This new agent appears promising in the treatment of thrombocytosis in patients with chronic myeloproliferative diseases, especially in younger persons in whom the risk of leukaemogenic transformation with some alternative drugs is of particular concern.
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