2008
DOI: 10.2165/00003088-200847030-00006
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Population Pharmacokinetics and Pharmacodynamics of Rivaroxaban – an Oral, Direct Factor Xa Inhibitor – in Patients Undergoing Major Orthopaedic Surgery

Abstract: This population analysis in patients undergoing major orthopaedic surgery demonstrated that rivaroxaban has predictable, dose-dependent pharmacokinetics that were well described by an oral one-compartment model and affected by expected covariates. Rivaroxaban exposure could be assessed using the prothrombin time, if necessary, but not the international normalized ratio. The findings suggested that fixed dosing of rivaroxaban may be possible in patients undergoing major orthopaedic surgery.

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Cited by 231 publications
(312 citation statements)
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“…Ecarin clotting time (ECT) directly assesses the activity of thrombin in plasma and has shown a linear dose-response to therapeutic concentrations of dabigatran 100) . Neoplatin-induced prothrombin time shows a dose-dependent correlation to rivoraxaban plasma levels 101) , but neither of these have been established in major clinical trials.…”
Section: Monitoringmentioning
confidence: 99%
“…Ecarin clotting time (ECT) directly assesses the activity of thrombin in plasma and has shown a linear dose-response to therapeutic concentrations of dabigatran 100) . Neoplatin-induced prothrombin time shows a dose-dependent correlation to rivoraxaban plasma levels 101) , but neither of these have been established in major clinical trials.…”
Section: Monitoringmentioning
confidence: 99%
“…Because age, sex, body weight and mild-to-moderate renal impairment have had no clinically relevant influence on the pharmacokinetic and pharmacodynamic profiles of rivaroxaban, it can be used at a fixed dose (e.g., 10 mg once daily) with no need for routine coagulation monitoring or dose adjustment. [40][41][42][43][44] Unlike warfarin, it has a low propensity for food-drug or drugdrug interactions.…”
Section: Rivaroxabanmentioning
confidence: 99%
“…Por sua vez, ambas as heparinas necessitam ser administradas por via parenteral, o que poderia ser considerado um fator para diminuir a adesão ao tratamento, além do desconforto da via (4,14,(28)(29)(30)(31)(32)(33) . O rivaroxaban é um anticoagulante oral que age inibindo diretamente a ação do fator de coagulação X ativado (FXa) (14,(34)(35)(36)(37)(38) . Sua concentração plasmática máxima é atingida duas a quatro horas após a administração oral e sua biodisponibilidade varia de 60 a 80% (34,39) .…”
Section: Tabelaunclassified
“…O rivaroxaban é excretado por via renal (66% da dose total) e biliar (28%); 36% são excretados inalterados na urina (14,34,36,39) . Além disso, por apresentar ampla janela terapêutica, não necessita monitorização laboratorial de rotina e pode ser administrado em dose úni-ca (14,(35)(36)(37)(38)(40)(41)(42) .…”
Section: Tabelaunclassified
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