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Clinical Pharmacokinetics
Published in: Clinical Pharmacokinetics 4/2010

01-04-2010 | Original Research Article

Influence of Renal Impairment on the Pharmacokinetics and Pharmacodynamics of Oral Dabigatran Etexilate

An Open-Label, Parallel-Group, Single-Centre Study

Authors: Dr Joachim Stangier, Karin Rathgen, Hildegard Stähle, Dago Mazur

Published in: Clinical Pharmacokinetics | Issue 4/2010

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Abstract

Background and Objective: Dabigatran etexilate is an oral direct thrombin inhibitor in clinical development for the prevention and treatment of thromboembolic disorders. Following oral administration, dabigatran etexilate is rapidly absorbed and converted into its active form, dabigatran. The aim of this study was to investigate the effect of renal impairment on the pharmacokinetics and pharmacodynamics of dabigatran following administration of a single oral dose of dabigatran etexilate in subjects with renal impairment (150 mg) or end-stage renal disease (ESRD) on maintenance haemodialysis (50 mg).
Methods: This open-label, parallel-group, single-centre study enrolled 23 subjects with mild, moderate or severe renal impairment (creatinine clearance >50 to ≤80, >30 to ≤50 and ≤30 mL/min, respectively), 6 patients with ESRD and 6 healthy subjects. Blood and urine samples were collected up to 96 hours after dosing for determination of dabigatran pharmacokinetic and pharmacodynamic parameters.
Results: Compared with the values in healthy subjects, the area under the plasma concentration-time curve from time zero to infinity (AUC∞) values were 1.5-, 3.2- and 6.3-fold higher in subjects with mild, moderate and severe renal impairment. Changes in the maximum plasma concentration (Cmax) were modest, and the time to reach the Cmax was unchanged. In subjects with severe renal impairment, the mean terminal elimination half-life was doubled (28 hours vs 14 hours for control). The AUC for prolongation of pharmacodynamic parameters (the activated partial thromboplastin time and ecarin clotting time) increased in line with the pharmacokinetic changes. In patients with ESRD, the dose-normalized AUC∞ was approximately twice the value in the control group. Haemodialysis removed 62–68% of the dose. Dabigatran etexilate was well tolerated in all groups.
Conclusions: Exposure to dabigatran is increased by renal impairment and correlates with the severity of renal dysfunction. A decrease in the dose and/or an increase in the administration interval in these patients may be appropriate. In patients with ESRD, dabigatran can be partly removed from the plasma by haemodialysis.
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Metadata
Title
Influence of Renal Impairment on the Pharmacokinetics and Pharmacodynamics of Oral Dabigatran Etexilate
An Open-Label, Parallel-Group, Single-Centre Study
Authors
Dr Joachim Stangier
Karin Rathgen
Hildegard Stähle
Dago Mazur
Publication date
01-04-2010
Publisher
Springer International Publishing
Published in
Clinical Pharmacokinetics / Issue 4/2010
Print ISSN: 0312-5963
Electronic ISSN: 1179-1926
DOI
https://doi.org/10.2165/11318170-000000000-00000

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