Back to Search
Start Over
Differential Neutralization of Unfractionated Heparin and Enoxaparin by Andexanet Alfa
- Source :
- Clinical and Applied Thrombosis/Hemostasis, Vol 28 (2022)
- Publication Year :
- 2022
- Publisher :
- SAGE Publishing, 2022.
-
Abstract
- Introduction Andexanet alfa (andexanet) is an approved antidote used to reverse the bleeding effects of Direct Oral Anticoagulant (Direct-Xa agents) agents because it reverses anti-Xa activity. Unfractionated heparin (UFH) and low molecular weight heparins (LMWHs) exhibit anti-Xa activity. The purpose is to investigate the neutralization of UFH and LMWH by andexanet in activated clotting time (ACT), thrombelastography (TEG), and anti-Xa due to the protamine sulfate shortage. Methods UFH and LMWH were studied with andexanet, PS, or saline as potential reversal agents/controls at varying concentrations in ACT, TEG, and anti-Xa and compared to each other. Results Andexanet partially neutralized both drugs several TEG parameters at high andexanet concentrations, but it was not as effective as protamine sulfate in any of the assays used. Most TEG parameters were correlated with andexanet concentration. In ACT, significant neutralization was demonstrated at many andexanet concentrations for UFH, but not LMWH. UFH was completely neutralized by PS in ACT, while LMWH was partially neutralized by PS in ACT. Andexanet alfa was a less effective neutralization agent than the protamine sulfate as it only partially neutralized UFH in ACT and was ineffective at neutralizing LMWH when tested at the same concentration as PS (10 ug/mL). Conclusion Andexanet partially neutralized UFH and LMWH with variability between assays, necessitating investigation into assay-dependent differences.
- Subjects :
- Diseases of the circulatory (Cardiovascular) system
RC666-701
Subjects
Details
- Language :
- English
- ISSN :
- 19382723 and 10760296
- Volume :
- 28
- Database :
- Directory of Open Access Journals
- Journal :
- Clinical and Applied Thrombosis/Hemostasis
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.898573021cb94fc8992380467d649964
- Document Type :
- article
- Full Text :
- https://doi.org/10.1177/10760296221099934