Reduced-dose direct oral anticoagulants in the extended treatment of venous thromboembolism: a systematic review and meta-analysis.

Journal of Thrombosis and Haemostasis : JTH
L VasanthamohanM Crowther

Abstract

Essentials In venous thromboembolism (VTE), benefits of extended treatment are balanced by bleeding risks. This is a meta-analysis of reduced-dose direct oral anticoagulants (DOACs) in extended treatment. Reduced-dose DOACs are as effective as full anticoagulation with bleeding risks similar to placebo. Reduced-dose DOACs are an attractive option for patients in the extended phase of VTE treatment. Background Extended-duration anticoagulation is beneficial for preventing recurrent venous thromboembolism (VTE). Reduced-dose direct oral anticoagulants (DOACs) may be preferable if they preserve efficacy and cause less bleeding. We conducted a systematic review and meta-analysis of trials comparing reduced-dose DOACs with full-dose DOACs and aspirin or placebo in the extended phase of VTE treatment. Methods A literature search was conducted by use of the MEDLINE, EMBASE and CINAHL databases, supplemented by hand-searching. One thousand three hundred and ninety-nine titles were screened, with data from accepted studies being extracted by two independent reviewers. Major outcomes analyzed included recurrent VTE and major and clinically relevant non-major bleeding events, presented as risk ratios (RRs) and 95% confidence intervals (CI...Continue Reading

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Dec 26, 2018·Arteriosclerosis, Thrombosis, and Vascular Biology·Jeffrey I Weitz, Noel C Chan
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