An open-label study of the pharmacokinetics and pharmacodynamics of dabigatran etexilate 150mg once daily in Caucasian patients with moderate renal impairment undergoing primary unilateral elective total knee or hip replacement surgery
Background - In adults with moderate renal impairment (creatinine clearance [CrCl] 30-50mL/min) undergoing total hip or knee replacement (THR/TKR), the recommended dose of dabigatran etexilate is 150mg once daily (qd). We investigated the steady state pharmacokinetics, pharmacodynamics and safety in...
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| Main Authors: | , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
August 2016
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| In: |
Thrombosis research
Year: 2016, Volume: 144, Pages: 158-164 |
| ISSN: | 1879-2472 |
| DOI: | 10.1016/j.thromres.2016.06.017 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1016/j.thromres.2016.06.017 Verlag: http://www.sciencedirect.com/science/article/pii/S0049384816304534 
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| Author Notes: | Bengt I. Eriksson, Zsolt Mikuska, Martin Feuring, Jean Amiral, Sebastian Haertter, Joachim Stangier, Gerhard Nehmiz, Jeffrey I. Weitz |
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| 245 | 1 | 3 | |a An open-label study of the pharmacokinetics and pharmacodynamics of dabigatran etexilate 150mg once daily in Caucasian patients with moderate renal impairment undergoing primary unilateral elective total knee or hip replacement surgery |c Bengt I. Eriksson, Zsolt Mikuska, Martin Feuring, Jean Amiral, Sebastian Haertter, Joachim Stangier, Gerhard Nehmiz, Jeffrey I. Weitz |
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| 520 | |a Background - In adults with moderate renal impairment (creatinine clearance [CrCl] 30-50mL/min) undergoing total hip or knee replacement (THR/TKR), the recommended dose of dabigatran etexilate is 150mg once daily (qd). We investigated the steady state pharmacokinetics, pharmacodynamics and safety in these patients. - Methods - Single-arm, open-label phase 4 study (NCT01184989) in Caucasian patients receiving dabigatran etexilate 75mg 1-4h after surgery and 150mg qd on days 2-10 (TKR) or days 2-35 (THR). Plasma total dabigatran concentrations (day 6±1) were determined by high-performance liquid chromatography tandem mass spectrometry and indirectly using the commercially available diluted thrombin time (dTT) assay (Hemoclot® Thrombin Inhibitors). - Results - Of 112 patients (mean CrCl 42.5mL/min, age 79.1years, 69.6% female), 100 completed the study. Geometric mean trough and peak dabigatran concentrations were 47.5ng/mL (10th-90th percentile 19.7-120) and 166ng/mL (49.1-364), respectively. There were four major bleeding events and no venous thromboembolic events. Dabigatran concentrations determined from dTT (and falling within the assay range of 50-500ng/mL) underestimated actual values by 7.6% (90% confidence interval 5.3, 9.9), which is within the acceptance limits of ±15%. - Conclusions - These findings in Caucasians with moderate renal impairment undergoing THR or TKR support the use of the 150mg qd dose of dabigatran etexilate. With adequate set-up, calibration and quality control the dTT assay might be appropriate for situations, such as serious bleeding or a need for urgent surgery, where determination of dabigatran levels would be helpful. | ||
| 650 | 4 | |a Assay | |
| 650 | 4 | |a Dabigatran etexilate | |
| 650 | 4 | |a Orthopedic surgery | |
| 650 | 4 | |a Pharmacokinetics | |
| 650 | 4 | |a Renal impairment | |
| 650 | 4 | |a Venous thromboembolism | |
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