• Emerg Med J · Feb 2024

    Four-factor prothrombin complex concentrate versus andexanet alfa for the reversal of traumatic brain injuries.

    • Erin Sadek, William Curtiss, Jessica Andrews, and Jason Hecht.
    • Inpatient Pharmacy, Trinity Health Ann Arbor, Ann Arbor, Michigan, USA.
    • Emerg Med J. 2024 Feb 20; 41 (3): 162167162-167.

    BackgroundAndexanet alfa was approved in 2018 for reversal of direct oral anticoagulants but due to issues of cost and access, four-factor prothrombin complex concentrate (4F-PCC) continues to be used for this indication. The objective of this study is to evaluate outcomes of reversal with these agents in patients with isolated traumatic brain injuries (TBI).MethodsThis is a retrospective review of 35 trauma centres from 2014 to 2021. Patients were included with an Abbreviated Injury Scale (AIS)>2 for head and having received andexanet alfa or 4F-PCC within 24 hours of admission. Patients were excluded if P2Y12 inhibitor use or AIS>2 outside of head. Primary outcome includes rate of mortality/hospice at hospital discharge. Secondary outcomes include a composite of serious hospital complications. A subgroup analysis of severe TBI patients (AIS head 4 or 5) was completed. Multivariable logistic regression was used to account for differences in comorbidities and TBI severity.Results4F-PCC was given to 265 patients with another 59 receiving andexanet alfa. Patients in the andexanet alfa group were more likely to have an AIS head score of 5 (47.5% vs 26.1%; p<0.005). After adjusting for severity of TBI and comorbidities with regard to tomortality/hospice, there were 15 (25.4%) patients in the andexanet alfa group and 49 (18.5%) in the 4F-PCC group (OR 1.34; 95% CI 0.67 to 2.71). This remained consistent when looking at severe patients with TBI with 12 (28.6%) andexanet alfa patients and 37 (28.7%) 4F-PCC patients (OR 0.93 (95% CI 0.40 to 2.16)). Severe hospital complications were also similar between groups with 5 (8.5%) andexanet alfa patients as compared with 21 (7.9%) 4F-PCC patients (OR 1.01; 95% CI 0.36 to 2.88).ConclusionThere was no firm conclusion on the treatment effect in mortality/hospice or serious complications among isolated TBI patients reversed with 4F-PCC as compared with andexanet alfa.© Author(s) (or their employer(s)) 2024. No commercial re-use. See rights and permissions. Published by BMJ.

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