Direct Oral Anticoagulant Use in Atypical Thrombosis-Related Conditions.

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Direct Oral Anticoagulant Use in Atypical Thrombosis-Related Conditions.

Ann Pharmacother. 2017 Sep 01;:1060028017731850

Authors: Chang C, Hoyos M, Owusu Y, Elewa H

OBJECTIVE: To review the published literature for evidence of the efficacy and safety of direct oral anticoagulants (DOACs) when used in the management of atypical thrombosis-related conditions.
DATA SOURCES: A comprehensive MEDLINE database search (1948 to July 2017) and EMBASE search (1980 to July 2017) were conducted using the search terms direct oral anticoagulant in combination with acute coronary syndrome (ACS), antiphospholipid antibody syndrome (APLAS), and cancer-associated thrombosis (CAT).
STUDY SELECTION AND DATA EXTRACTION: The literature search was limited to studies that were conducted in humans and published in English. Clinical trials, observational studies, and case series were selected.
DATA SYNTHESIS: A total of 20 published studies were selected from the literature. Only 1 randomized controlled study showed a significant reduction in cardiovascular outcomes on DOAC use in ACS patients but at the expense of increased bleeding. For the use of DOACs in APLAS, the evidence from case series seems to suggest low incidence of thromboembolic events or recurrent thrombosis in low-risk patients. Finally, in cancer patients, DOACs were comparable to warfarin in preventing CAT in 8 studies of different designs. Major bleeding with DOACs was not significantly lower than in patients who received an enoxaparin/warfarin regimen.
CONCLUSIONS: Until more evidence from the ongoing clinical trials is available, DOACs may not be favorable add-on therapy in ACS patients receiving standard antiplatelet therapy but may be alternative to warfarin in preventing or treating thrombosis in low-risk APLAS patients as well as in cases of CAT in which patients have to be managed with warfarin.

PMID: 28918657 [PubMed - as supplied by publisher]

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