Efficacy of apixaban when compared with warfarin in relation to renal function in patients with atrial fibrillation: insights from the ARISTOTLE trial

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Efficacy of apixaban when compared with warfarin in relation to renal function in patients with atrial fibrillation : insights from the ARISTOTLE trial

Hohnloser, Stefan H. (author)

Hijazi, Ziad (author): Uppsala universitet,Uppsala kliniska forskningscentrum (UCR),Kardiologi

Thomas, Laine (author)

Alexander, John H. (author)

Amerena, John (author)

Hanna, Michael (author)

Keltai, Matyas (author)

Lanas, Fernando (author)

Lopes, Renato D. (author)

Lopez-Sendon, Jose (author)

Granger, Christopher B. (author)

Wallentin, Lars (author): Uppsala universitet,Uppsala kliniska forskningscentrum (UCR)

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(creator_code:org_t)

2012-08-29
2012
English.
In: European Heart Journal. - : Oxford University Press (OUP). - 0195-668X .- 1522-9645. ; 33:22, s. 2821-2830

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

AimsAtrial fibrillation (AF) is common among patients with impaired renal function. Apixaban, a novel oral anticoagulant with partial renal excretion, was compared with warfarin and reduced the rate stroke, death and bleeding in the ARISTOTLE trial. We evaluated these outcomes in relation to renal function.Methods and resultsBaseline glomerular filtration rate (GFR) was estimated using the Cockcroft–Gault and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations as well as cystatin C measurements. According to baseline Cockcroft–Gault, there were 7518 patients (42%) with an estimated GFR (eGFR) of >80 mL/min, 7587 (42%) between >50 and 80 mL/min, and 3017 (15%) with an eGFR of ≤50 mL/min. The rate of cardiovascular events and bleeding was higher at impaired renal function (≤80 mL/min). Apixaban was more effective than warfarin in preventing stroke or systemic embolism and reducing mortality irrespective of renal function. These results were consistent, regardless of methods for GFR estimation. Apixaban was associated with less major bleeding events across all ranges of eGFRs. The relative risk reduction in major bleeding was greater in patients with an eGFR of ≤50 mL/min using Cockcroft–Gault {hazard ratio (HR) 0.50 [95% confidence interval (CI) 0.38–0.66], interaction P = 0.005} or CKD-EPI equations [HR 0.48 (95% CI 0.37–0.64), interaction P = 0.003].ConclusionIn patients with AF, renal impairment was associated with increased risk of cardiovascular events and bleeding. When compared with warfarin, apixaban treatment reduced the rate of stroke, death, and major bleeding, regardless of renal function. Patients with impaired renal function seemed to have the greatest reduction in major bleeding with apixaban.

Keyword

Atrial fibrillation
Anticoagulation
Stroke prevention
Bleeding
Apixaban

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By the author/editor: Hohnloser, Stefa ...; Hijazi, Ziad; Thomas, Laine; Alexander, John ...; Amerena, John; Hanna, Michael; show more...; Keltai, Matyas; Lanas, Fernando; Lopes, Renato D.; Lopez-Sendon, Jo ...; Granger, Christo ...; Wallentin, Lars; show less...

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