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To explore the mode of action (MoA) by which sugammadex interferes with coagulation. The effect of sugammadex on various steps in the coagulation cascade including thrombin generation, factor Xa activity, and factor Xa generation was explored in human plasma. Sugammadex did not affect a conventional thrombin generation test (TGT), while it prolongs activated partial thromboplastin time (APTT) and prothrombin time (PT). However, a customized TGT with PT reagent revealed sugammadex effects. In addition, sugammadex prolonged a one-step prothrombinase-induced clotting time (PiCT) using human factor Xa. Furthermore, sugammadex interfered with factor Xa generation induced by an intrinsic and not by an extrinsic activator, nor by Russell's viper venom factor X (RVV-X). Adapted, rather than standard, experiments show that sugammadex is likely to decrease factor Xa activity in the common pathway and activation of factor X specifically in the intrinsic pathway.


Annelieke C Kruithof, Cornelis Kluft, Pieter-Jan de Kam, Ria H Laterveer, Matthijs Moerland, Jacobus Burggraaf. The mode of action of sugammadex on coagulation. International journal of clinical pharmacology and therapeutics. 2021 Feb;59(2):89-98

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PMID: 33155541

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