In vitro assessment of edoxaban anticoagulant effect in pediatric plasma

Thomas Sinegre1, Mélissa Zlobecki2, Eric Doré3

  • 1CHU Clermont-Ferrand, Service d'Hématologie Biologique, Clermont-Ferrand, France; Université Clermont Auvergne, INRA, UNH, Unité de Nutrition Humaine, CRNH Auvergne, Clermont-Ferrand, France.

Thrombosis Research
|April 22, 2019
PubMed

Insights

Direct oral anticoagulants like edoxaban show promise for children. In vitro studies found edoxaban

Area of Science:

  • Pharmacology
  • Pediatric Medicine
  • Hematology

Background:

  • Anticoagulant therapy in children presents challenges.
  • Direct oral anticoagulants (DOACs) offer potential safer alternatives.
  • Edoxaban, a factor Xa inhibitor, is a candidate for pediatric use.

Purpose of the Study:

  • To compare the in vitro anticoagulant effects of edoxaban in pediatric and adult populations.
  • To evaluate edoxaban's dose-dependent activity across different age groups.

Main Methods:

  • Prospective collection of blood samples from 87 adults and 97 children across various age strata.
  • In vitro addition of edoxaban to plasma samples at concentrations of 50, 150, and 300 ng/mL.
  • Assessment of edoxaban's impact on prothrombin time (PT), activated partial thromboplastin time (aPTT), fibrinogen, anti-factor Xa activity, and thrombin generation assay (TGA).

Main Results:

  • Edoxaban demonstrated dose-dependent effects on PT, aPTT, and anti-factor Xa activity, consistent across adult and pediatric groups.
  • Thrombin peak reduction in TGA was similar between adults and children.
  • A significantly higher reduction in thrombin peak was observed in the youngest pediatric group (<2 years old) compared to adults at all tested edoxaban concentrations.

Conclusions:

  • Edoxaban exhibits comparable in vitro anticoagulant effects in children and adults.
  • The <2-year-old pediatric group showed a more pronounced response to edoxaban's anticoagulant effect.
  • These findings support edoxaban's potential as a safer anticoagulant option for pediatric patients, with potential age-specific considerations for the youngest.
Abstract

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