From heparin to EP217609: The long way to a new pentasaccharide-based neutralisable anticoagulant with an unprecedented pharmacological profile

Maurice Petitou; Vanessa Nancy-Portebois; Guy Dubreucq; Vincent Motte; Dick Meuleman; Martin de Kort; Constant A. A. van Boeckel; Gerard M. T. Vogel; Jeffry A. J. Wisse

doi:10.1160/TH09-01-0063

Thrombosis and Haemostasis, Inhaltsverzeichnis

Thromb Haemost 2009; 102(05): 804-810
DOI: 10.1160/TH09-01-0063

Theme Issue Article

Schattauer GmbH

From heparin to EP217609: The long way to a new pentasaccharide-based neutralisable anticoagulant with an unprecedented pharmacological profile

Maurice Petitou

¹Endotis Pharma, Parc Biocitech, Romainville, France

,

Vanessa Nancy-Portebois

¹Endotis Pharma, Parc Biocitech, Romainville, France

,

Guy Dubreucq

¹Endotis Pharma, Parc Biocitech, Romainville, France

,

Vincent Motte

¹Endotis Pharma, Parc Biocitech, Romainville, France

,

Dick Meuleman^*

¹Endotis Pharma, Parc Biocitech, Romainville, France

,

Martin de Kort

²N.V. Organon, part of Schering-Plough Corporation, Oss, The Netherlands

,

Constant A. A. van Boeckel

²N.V. Organon, part of Schering-Plough Corporation, Oss, The Netherlands

,

Gerard M. T. Vogel

²N.V. Organon, part of Schering-Plough Corporation, Oss, The Netherlands

,

Jeffry A. J. Wisse

²N.V. Organon, part of Schering-Plough Corporation, Oss, The Netherlands

› Institutsangaben

Abstract

Summary

The elucidation of the structure of the antithrombin binding sequence in heparin has given a large impulse to the rational design of heparin related drugs. De novo chemical synthesis of the corresponding pentasaccharide as well as simplified analogues has provided very specific, antithrombin-mediated inhibitors of factor Xa with various pharmacokinetic profiles. Fondaparinux and idraparinux are examples of such compounds that have found clinical application as antithrombotics. Because of the very specific binding to antithrombin the pharmacokinetics of pentasaccharides can be predicted and transferred to other molecules covalently bound to them. The new chemical entities thus obtained display a wide array of antithrombotic activities, giving improved heparin molecules as well as new anticoagulants, devoid of the undesired side effects of heparin and with unprecedented pharmacological profiles. In this context, a direct thrombin inhibitor was covalently coupled to a pentasaccharide by an inert spacer.This compound, EP42675 exerts antithrombin mediated anti-factor Xa activity together with direct thrombin inhibiting capacity. It displays favourable pharmacokinetics as imposed by the pentasaccharide. EP42675 was further modified by the introduction of a biotin moiety in its structure.The new entity obtained, EP217609 exerts the same pharmacological profile as EP42675 and it can be instantaneously neutralised by injection of avidin. Due to this unprecedented mechanism of anticoagulant activity and its ability to be neutralised,EP217609 deserves to be investigated in clinical settings where direct thrombin inhibition is required.

Keywords

Antithrombin - coagulation inhibitors - drug design - heparin - thrombosis

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Referenzen

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