Cited by 43Blood Coagulation and Thrombosis MechanismsHemophilia Treatment and ResearchHemostasis and retained surgical items

A rapid pro-hemostatic approach to overcome direct oral anticoagulants

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Thalji, Nabil K, Ivanciu, Lacramioara, Davidson, Robert, Gimotty, Phyllis A, Krishnaswamy, Sriram, Camire, Rodney M·2016·Nature Medicine

Abstract

Direct inhibitors of coagulation factor Xa (FXa) or thrombin are promising oral anticoagulants that are becoming widely adopted. The ability to reverse their anticoagulant effects is important when serious bleeding occurs or urgent medical procedures are needed. Here, using experimental mouse models of hemostasis, we show that a variant coagulation factor, FXa(I16L), rapidly restores hemostasis in the presence of the anticoagulant effects of these inhibitors. The ability of FXa(I16L) to reverse the anticoagulant effects of FXa inhibitor depends, at least in part, on the ability of the active site inhibitor to hinder antithrombin-dependent FXa inactivation, paradoxically allowing uninhibited FXa to persist in plasma. Because of its inherent catalytic activity, FXa(I16L) is more potent (by >50-fold) in the hemostasis models tested than a noncatalytic antidote that is currently in clinical development. FXa(I16L) also reduces the anticoagulant-associated bleeding in vivo that is induced by the thrombin inhibitor dabigatran. FXa(I16L) may be able to fill an important unmet clinical need for a rapid, pro-hemostatic agent to reverse the effects of several new anticoagulants.

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Authors
Thalji, N. K., Ivanciu, L., Davidson, R., Gimotty, P. A., Krishnaswamy, S., & Camire, R. M.
Affiliations
  • Children's Hospital of Philadelphia (US)
  • University of Pennsylvania (US)
Corresponding author
Camire, Rodney M
Venue
Nature Medicine
Published
2016-07-25
Volume
22
Issue
8
Pages
924-932
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W2480311966
Cited by
43
References
65
Citations by year
2025: 1 · 2024: 5 · 2023: 5 · 2022: 3 · 2021: 3 · 2020: 7 · 2019: 1 · 2018: 8 · 2017: 9 · 2016: 1
FWCI
6.02
Type
journal article
Language
en
Open access
Locations
  • Nature Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
Funders
  • National Heart, Lung, and Blood Institute (F30HL120487, P01HL074124, T32HL007439)
  • National Institute of General Medical Sciences (T32GM007170)
Topics
  • Health Sciences › Medicine › Hematology › Blood Coagulation and Thrombosis Mechanisms
  • Health Sciences › Medicine › Hematology › Hemophilia Treatment and Research
  • Health Sciences › Medicine › Hematology › Hemostasis and retained surgical items
Keywords
direct oral anticoagulants, anticoagulant reversal, factor Xa inhibitors, hemostasis, dabigatran, thrombin inhibitors, antithrombin III, hemorrhage, antidotes
MeSH terms
Rivaroxaban, Animals, Antidotes, Blood Coagulation, Hemostasis, Humans, Thrombelastography, Factor Xa, Mice, Factor Xa Inhibitors, In Vitro Techniques

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