The results of multiple randomized controlled trials have established that the direct
oral anticoagulants (DOACs) are at least as effective as warfarin for the prevention
of stroke or systemic embolism in patients with atrial fibrillation and for the prevention
of recurrence in patients with venous thromboembolism, while producing similar or
lower rates of major bleeding.
1
,
2
Nonetheless, DOACs are still associated with serious bleeding. The lack of a specific
antidote has raised concerns about the inability to promptly reverse their anticoagulant
effect in patients with major bleeding and in those who require emergency surgery.
Clinicians are worried that the lack of a specific antidote will lead to adverse outcomes
when these drugs are used outside of the controlled environment of a randomized trial.To read this article in full you will need to make a payment
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References
- Dabigatran and postmarketing reports of bleeding.N Engl J Med. 2013; 368: 1272-1274
- New oral anticoagulants are not superior to warfarin in secondary prevention of stroke or transient ischemic attacks, but lower the risk of intracranial bleeding: insights from a meta-analysis and indirect treatment comparisons.PLoS One. 2013; 8: e77694
- Hemostatic therapy in experimental intracerebral hemorrhage associated with the direct thrombin inhibitor dabigatran.Stroke. 2011; 42: 3594-3599
- Evaluation of prothrombin complex concentrate and recombinant activated factor VII to reverse rivaroxaban in a rabbit model.Anesthesiology. 2012; 116: 94-102
- Reversal of dabigatran anticoagulation by prothrombin complex concentrate (Beriplex P/N) in a rabbit model.J Thromb Haemost. 2012; 10: 1841-1848
- Reversal of anticoagulant effects of edoxaban, an oral, direct factor Xa inhibitor, with haemostatic agents.Thromb Haemost. 2012; 107: 253-259
- Reversal of rivaroxaban anticoagulation by haemostatic agents in rats and primates.Thromb Haemost. 2013; 110: 162-172
- Hemostatic therapy in experimental intracerebral hemorrhage associated with rivaroxaban.Stroke. 2013; 44: 771-778
- Reversal of rivaroxaban and dabigatran by prothrombin complex concentrate: a randomized, placebo-controlled, crossover study in healthy subjects.Circulation. 2011; 124: 1573-1579
- Effect of non-specific reversal agents on anticoagulant activity of dabigatran and rivaroxaban: a randomised crossover ex vivo study in healthy volunteers.Thromb Haemost. 2012; 108: 217-224
- Procoagulants for management of bleeding with the new oral anticoagulants.Thromb Haemost. 2013; 110: 1
- Assessment of anticoagulation intensity and management of bleeding with old and new oral anticoagulants.Can J Cardiol. 2013; 29: S34-S44
- A specific antidote for reversal of anticoagulation by direct and indirect inhibitors of coagulation factor Xa.Nat Med. 2013; 19: 446-451
- PRT064445 reverses rivaroxaban induced anticoagulation in a rabbit liver laceration "treatment" model (abstract).Eur Heart J. 2013; 34: 24
- Randomized, double-blind, placebo-controlled single ascending dose pharmacokinetic and pharmacodynamic study of PRT064445, a universal antidote for factor Xa inhibitors (abstract).Arterioscler Thromb Vasc Biol. 2013; 33: A10
- A phase 2 randomized, double-blind, placebo-controlled trial of PRT064445, a novel, universal antidote for direct and indirect factor Xa inhibitors (abstract).J Thromb Haemost. 2013; 11: AS20.1
- A phase 2 randomized, double-blind, placebo-controlled trial demonstrating reversal of rivaroxaban-induced anticoagulation in healthy subjects by andexanet alfa (PRT064445), an antidote for FXa inhibitors.Blood. 2013; 122 (abstract): A3636
- A specific antidote for dabigatran: functional and structural characterization.Blood. 2013; 121: 3554-3562
- A specific antidote for dabigatran: immediate, complete and sustained reversal of dabigatran induced anticoagulation in healthy male volunteers.Circulation. 2013; 128 (abstract): A17765
- Ex vivo prothrombin complex concentrates and a specific antidote are effective in reversing dabigatran-induced coagulopathy in pigs.Blood. 2013; 122 (abstract): A2387
- Small molecule antidote for anticoagulants (abstract).Circulation. 2012; 126: 10021
- Antidote for new oral anticoagulants: mechanism of action and binding specificity of PER977.J Thromb Haemost. 2013; 11 (abstract): AS47.1
- Poor prognosis in warfarin-associated intracranial hemorrhage despite anticoagulation reversal.Stroke. 2012; 43: 1812-1817
- Intracranial hemorrhage in atrial fibrillation patients during anticoagulation with warfarin or dabigatran: the RE-LY trial.Stroke. 2012; 43: 1511-1517
- What is the clinical impact of major bleedings with rivaroxaban? Results from the pooled EINSTEIN studies (abstract).J Thromb Haemost. 2013; 11: OC02.2
- Management and outcomes of major bleeding during treatment with dabigatran or warfarin.Circulation. 2013; 128: 2325-2332
Article info
Publication history
Published online: January 27, 2014
Accepted:
January 23,
2014
Received:
December 16,
2013
Footnotes
See page 383 for disclosure information.
Identification
Copyright
© 2014 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved.