Abstract
Objective
To investigate the influence of nonvalvular atrial fibrillation (NVAF) on the pharmacokinetic (PK) properties of the oral direct thrombin inhibitor ximelagatran and its active form, melagatran.
Methods
In an open study, 12 patients with persistent NVAF and 12 age- and gender-matched, healthy control subjects received a 10-min intravenous (i.v.) infusion of 2.66 mg melagatran followed by oral ximelagatran, 36 mg twice daily, for the subsequent five study days. Plasma and urine samples for PK analyses were collected after i.v. and single and repeated oral dosing.
Results
The oral absorption of ximelagatran was rapid, and maximum plasma concentrations of ximelagatran (Cmax) were achieved at about 1 h post-dosing. There were no differences between NVAF patients and controls for the area under the plasma concentration versus time curve, Cmax, half-life (t 1/2), or bioavailability (F) of melagatran after oral dosing with ximelagatran. The Cmax of melagatran, formed by the rapid bioconversion of ximelagatran, occurred approximately 3 h post-dosing. The geometric means of the t 1/2 for melagatran were 4.0 h and 4.2 h for the first and last doses, respectively, in patients, and 3.5 h and 3.7 h, respectively, in controls. Geometric means of F of melagatran following oral administration of ximelagatran were 22% and 24% for the first and last doses, respectively, in patients and 21% and 23%, respectively, in controls. Approximately 80% of the i.v. dose of melagatran was excreted in urine in patients and in controls.
Conclusion
The PK properties of oral ximelagatran and i.v. melagatran in elderly patients with NVAF are consistent with those in matched, healthy controls.
Similar content being viewed by others
References
Wolf PA (1998) Prevention of stroke. Lancet 352[Suppl]:S15–S18
Hart RG, Sherman DG, Easton JD, Cairns JA (1998) Prevention of stroke in patients with nonvalvular atrial fibrillation. Neurology 51:674–681
Fuster V, Ryden LE, Asinger RW, Cannom DS, Crijns HJ, Frye RL et al (2001) ACC/AHA/ESC guidelines for the management of patients with atrial fibrillation. A report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and the European Society of Cardiology Committee for Practice Guidelines and Policy Conferences (Committee to develop guidelines for the management of patients with atrial fibrillation) developed in collaboration with the North American Society of Pacing and Electrophysiology. Eur Heart J 22:1852–1923
Michelson AD (1994) Platelet activation by thrombin can be directly measured in whole blood through the use of the peptide GPRP and flow cytometry: methods and clinical applications. Blood Coagul Fibrinolysis 5:121–131
Becker RC, Bovill EG, Seghatchian MJ, Samama MM (1998) Pathobiology of thrombin in acute coronary syndromes. Am Heart J 136[Suppl]:S19–S31
Fenton JW 2nd, Ofosu FA, Brezniak DV, Hassouna HI (1998) Thrombin and antithrombotics. Semin Thromb Hemost 24:87–91
Kamath S, Blann AD, Chin BS, Lip GY (2002) A prospective randomized trial of aspirin-clopidogrel combination therapy and dose-adjusted warfarin on indices of thrombogenesis and platelet activation in atrial fibrillation. J Am Coll Cardiol 40:484–490
Hauptmann J, Stürzebecher J (1999) Synthetic inhibitors of thrombin and factor Xa: from bench to bedside. Thromb Res 93:203–241
Eichinger S, Wolzt M, Schneider B, Nieszpaur-Los M, Heinrichs H, Lechner K et al (1995) Effects of recombinant hirudin (r-hirudin, HBW 023) on coagulation and platelet activation in vivo. Comparison with unfractionated heparin and a low-molecular-weight heparin preparation (fragmin). Arterioscler Thromb Vasc Biol 15:886–892
Prasa D, Svendsen L, Stürzebecher J (1997) The ability of thrombin inhibitors to reduce the thrombin activity generated in plasma on extrinsic and intrinsic activation. Thromb Haemost 77:498–503
Sarich TC, Ericsson UG, Mattsson C, Wolzt M, Frison L, Fager G et al (2002) Inhibition of thrombin generation by the oral direct thrombin inhibitor ximelagatran in shed blood from healthy male subjects. Thromb Haemost 87:300–305
Lindhout T, Blezer R, Hemker HC (1990) The anticoagulant mechanism of action of recombinant hirudin (CGP39393) in plasma. Thromb Haemost 64:464–468
Eriksson UG, Bredberg U, Gislen K, Johansson LC, Frison L, Ahnoff M, Gustafsson D (2003) Pharmacokinetics and pharmacodynamics of ximelagatran, a novel direct thrombin inhibitor, in young healthy male subjects. Eur J Clin Pharmacol 59:35–43
Gustafsson D, Nystrom J, Carlsson S, Bredberg U, Eriksson U, Gyzander E et al (2001) The direct thrombin inhibitor melagatran and its oral prodrug H 376/95: intestinal absorption properties, biochemical and pharmacodynamic effects. Thromb Res 101:171–181
Gustafsson D, Antonsson T, Bylund R, Eriksson U, Gyzander E, Nilsson I et al (1998) Effects of melagatran, a new low-molecular-weight thrombin inhibitor, on thrombin and fibrinolytic enzymes. Thromb Haemost 79:110–118
Eriksson BI, Arfwidsson AC, Frison L, Eriksson UG, Bylock A, Kalebo P et al (2002) A dose-ranging study of the oral direct thrombin inhibitor, ximelagatran, and its subcutaneous form, melagatran, compared with dalteparin in the prophylaxis of thromboembolism after hip or knee replacement: METHRO I. Melagatran for thrombin inhibition in orthopaedic surgery. Thromb Haemost 87:231–237
Eriksson BI, Bergqvist D, Kälebo P, Dahl OE, Lindbratt S, Bylock A et al (2002) Ximelagatran and melagatran compared with dalteparin for prevention of venous thromboembolism after total hip or knee replacement: the METHRO II randomised trial. Lancet 360:1441–1447
Francis CW, Davidson BL, Berkowitz SD, Lotke PA, Ginsberg JS, Lieberman JR et al (2002) Ximelagatran versus warfarin for the prevention of venous thromboembolism after total knee arthroplasty. A randomized, double-blind trial. Ann Intern Med 137:648–655
Eriksson BI, Ögren M, Agnelli G, Cohen A, Dahl OE, Mouret P et al (2001) The oral direct thrombin inhibitor ximelagatran (pINN, formerly H 376/95) and its subcutaneous form melagatran compared with enoxaparin as thromboprophylaxis after total hip or total knee replacement. Thromb Haemost Suppl (July) (ISSN 0340–6245) XVIII
Heit JA, Colwell CW, Francis CW, Ginsberg JS, Berkowitz SD, Whipple J et al (2001) Comparison of the oral direct thrombin inhibitor ximelagatran with enoxaparin as prophylaxis against venous thromboembolism after total knee replacement: a phase 2 dose-finding study. Arch Intern Med 161:2215–2221
Eriksson H, Wåhlander K, Gustafsson D et al (2003) A randomised, controlled, dose-guiding study of the oral direct thrombin inhibitor ximelagatran compared with standard therapy for the treatment of acute deep vein thrombosis: THRIVE I. J Thromb Haemost 1:41–47
Petersen P, Grind M, Adler J for the SPORTIF II Investigators (2003) Ximelagatran versus warfarin for stroke prevention in patients with nonvalvular atrial fibrillation. J Am Coll Cardiol 41:1445–1451
Mismetti P, Laporte-Simitsidis S, Navarro C, Sie P, d'Azemar P, Necciari J et al (1998) Aging and venous thromboembolism influence the pharmacodynamics of the anti-factor Xa and anti-thrombin activities of a low molecular weight heparin (nadroparin). Thromb Haemost 79:1162–1165
Abernethy DR, Pezzullo J, Mascelli MA, Frederick B, Kleiman NS, Freedman J (2002) Pharmacodynamics of abciximab during angioplasty: comparison to healthy subjects. Clin Pharmacol Ther 71:186–195
Larsson M, Ahnoff M, Abrahamsson A, Logren U, Fakt C, Öhrman I et al (2003) Determination of ximelagatran, an oral direct thrombin inhibitor, its active metabolite melagatran, and the intermediate metabolites, in biological samples by liquid chromatography–mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 783:335–347
Wolzt M, Boström S, Wollbratt M, Svensson M, Eriksson UG, Grind M et al (2002) Ximelagatran, an oral direct thrombin inhibitor, normalized platelet activation and inhibited thrombin generation in patients with nonvalvular atrial fibrillation. Pathophysiol Haemost Thromb 32[Suppl 2]:S56
Eriksson UG, Bredberg U, Hoffmann K-J, Thuresson A, Gabrielsson M, Ericsson H et al (2003) Absorption, distribution, metabolism and excretion of ximelagatran, an oral direct thrombin inhibitor, in rats, dogs, and humans. Drug Metab Disp 31:294–305
Johansson LC, Frison L, Logren U, Fager G, Gustafsson D, Eriksson UG (2003) The influence of age on the pharmacokinetics and pharmacodynamics of ximelagatran, an oral direct thrombin inhibitor. Clin Pharmacokinet 42:381–392
Eriksson H, Eriksson UG, Frison L, Hansson PO, Held P, Holmstrom M et al (1999) Pharmacokinetics and pharmacodynamics of melagatran, a novel synthetic LMW thrombin inhibitor, in patients with acute DVT. Thromb Haemost 81:358–363
Cockcroft DW, Gault MH (1976) Prediction of creatinine clearance from serum creatinine. Nephron 16:31–41
Acknowledgements
The administrative work of Carola Fuchs, RN, during the study is gratefully acknowledged. This study was funded by AstraZeneca, Mölndal, Sweden.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Wolzt, M., Wollbratt, M., Svensson, M. et al. Consistent pharmacokinetics of the oral direct thrombin inhibitor ximelagatran in patients with nonvalvular atrial fibrillation and in healthy subjects. Eur J Clin Pharmacol 59, 537–543 (2003). https://doi.org/10.1007/s00228-003-0667-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00228-003-0667-2