Abstract
BackgroundOptimal reversal agent for direct oral anticoagulant (DOAC)–associated major bleeding has not been described. Before the approval of andexanet alfa (AA) in 2018, 4-factor prothrombin complex concentrate (4F-PCC) was recommended by major guidelines. Currently, AA is recommended as the first-line agent by most guidelines. With a paucity of literature comparing the 2 agents, there is clinical value in assessing hemostatic efficacy and safety of the 2 agents. ObjectiveThis study aimed to evaluate hemostatic efficacy and safety of AA and 4F-PCC in all DOAC-associated major bleedings. MethodsA multicenter, retrospective chart review was performed of adult subjects who were admitted for a DOAC-associated major bleeding and received 4F-PCC from February 2018 to May 2019 or AA from May 2019 to September 2021. Some of the exclusion criteria included not receiving a DOAC, receiving multiple reversal agents during the same hospitalization, receiving reversal for any nonmajor bleeding indication, and not receiving the full dose of a reversal agent. The primary outcome was hemostatic efficacy 24 hours after the end of the reversal agent administration. Secondary outcomes included time to administration, hospital mortality, length of stay, need for surgery, and need for additional blood product. Safety outcome was incidence of thrombotic events. ResultsThere were 99 subjects included in the 4F-PCC group and 84 subjects in the AA group. Hemostatic efficacy was achieved in 69 subjects (69.7%) in the 4F-PCC group and 63 subjects (75%) in the AA group (P = 0.927). In-hospital mortality was seen in 20 subjects (20.2%) in the 4F-PCC group and 10 subjects (11.9%) in the AA group. Thrombotic events were seen in 7 subjects (7.1%) in the 4F-PCC group and 6 subjects (7.1%) in the AA group. ConclusionsThere were no significant differences in hemostatic efficacy, in-hospital mortality, and number of thrombotic events between 4F-PCC and AA.
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