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A Randomized Trial ...
A Randomized Trial of Genotype-Guided Dosing of Warfarin
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Pirmohamed, Munir (författare)
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Burnside, Girvan (författare)
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- Eriksson, Niclas (författare)
- Uppsala universitet,Institutionen för medicinska vetenskaper,Uppsala kliniska forskningscentrum (UCR)
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Jorgensen, Andrea L. (författare)
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Toh, Cheng Hock (författare)
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Nicholson, Toby (författare)
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Kesteven, Patrick (författare)
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- Christersson, Christina (författare)
- Uppsala universitet,Institutionen för medicinska vetenskaper
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- Wahlström, Bengt (författare)
- Uppsala universitet,Institutionen för medicinska vetenskaper
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Stafberg, Christina (författare)
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Zhang, J. Eunice (författare)
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Leathart, Julian B. (författare)
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Kohnke, Hugo (författare)
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Maitland-van der Zee, Anke H. (författare)
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Williamson, Paula R. (författare)
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Daly, Ann K. (författare)
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Avery, Peter (författare)
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Kamali, Farhad (författare)
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- Wadelius, Mia (författare)
- Uppsala universitet,Klinisk farmakogenomik och osteoporos
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(creator_code:org_t)
- 2013
- 2013
- Engelska.
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Ingår i: New England Journal of Medicine. - 0028-4793 .- 1533-4406. ; 369:24, s. 2294-2303
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Background: The level of anticoagulation in response to a fixed-dose regimen of warfarin is difficult to predict during the initiation of therapy. We prospectively compared the effect of genotype-guided dosing with that of standard dosing on anticoagulation control in patients starting warfarin therapy.Methods: We conducted a multicenter, randomized, controlled trial involving patients with atrial fibrillation or venous thromboembolism. Genotyping for CYP2C9*2, CYP2C9*3, and VKORC1 (-1639GA) was performed with the use of a point-of-care test. For patients assigned to the genotype-guided group, warfarin doses were prescribed according to pharmacogenetic-based algorithms for the first 5 days. Patients in the control (standard dosing) group received a 3-day loading-dose regimen. After the initiation period, the treatment of all patients was managed according to routine clinical practice. The primary outcome measure was the percentage of time in the therapeutic range of 2.0 to 3.0 for the international normalized ratio (INR) during the first 12 weeks after warfarin initiation.Results: A total of 455 patients were recruited, with 227 randomly assigned to the genotype-guided group and 228 assigned to the control group. The mean percentage of time in the therapeutic range was 67.4% in the genotype-guided group as compared with 60.3% in the control group (adjusted difference, 7.0 percentage points; 95% confidence interval, 3.3 to 10.6; P<0.001). There were significantly fewer incidences of excessive anticoagulation (INR 4.0) in the genotype-guided group. The median time to reach a therapeutic INR was 21 days in the genotype-guided group as compared with 29 days in the control group (P<0.001).Conclusions: Pharmacogenetic-based dosing was associated with a higher percentage of time in the therapeutic INR range than was standard dosing during the initiation of warfarin therapy.
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Pirmohamed, Muni ...
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Burnside, Girvan
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Eriksson, Niclas
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Jorgensen, Andre ...
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Toh, Cheng Hock
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Nicholson, Toby
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visa fler...
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Kesteven, Patric ...
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Christersson, Ch ...
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Wahlström, Bengt
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Stafberg, Christ ...
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Zhang, J. Eunice
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Leathart, Julian ...
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Kohnke, Hugo
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Maitland-van der ...
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Williamson, Paul ...
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Daly, Ann K.
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Avery, Peter
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Kamali, Farhad
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Wadelius, Mia
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visa färre...
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Uppsala universitet