Disseminated Intravascular Coagulation Following Idarucizumab and Andexanet Alfa: Assessment of a Signal of Disproportionate Reporting From the Food and Drugs Administration Adverse Event Reporting System (FAERS) Database

The disproportionality analysis of the FAERS allowed us to highlight the associations between idarucizumab-DIC and andexanet-alfa-DIC, which might otherwise have remained unobserved due to the rarity of DIC and the low utilization of idarucizumab and andexanet alfa. Although the case-by-case evaluation was limited by the intrinsic indication bias, a causal link remained possible in those cases that occurred soon after administration. Since DIC is a life-threatening and often fatal condition, further investigation is warranted while close follow-up of high-risk patients may be considered to promptly detect any sign of coagulopathy following the administration of DOAC reversal agents. Any such observed adverse events should be reported to the relevant pharmacovigilance system in a timely manner.