Using results from the ECAT extrenal quality assessment programme for dabigatran, rivaroxaban, apixaban and edoxaban the performance of tests for these direct oral anticoagulants was performed.
Abstract
There is limited information regarding the performance of tests for direct oral anticoagulants (DOACs). To generate more knowledge, the accuracy of DOAC tests were evaluated using external quality assessment data from multiple years. This data demonstrated a good correlation for the tests with a small overall interlaboratory variability (10% for dabigatran, rivaroxaban and apixaban and 12% for edoxaban).
The greatest differences between the various reagents were observed for rivaroxaban, especially for concentrations below 100 ng/ml. In conclusion, the results show overall reliable DOAC levels with some differences between reagent groups. Important finding: clinical decision criteria could be affected by the choice of reagent.
British Journal of Haematology, 2020, 188, 460–464.
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