Extended Half-Life Factor VIII and Factor IX Preparations.

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Graf L

Extended Half-Life Factor VIII and Factor IX Preparations.

Transfus Med Hemother. 2018 Apr;45(2):86-91. doi: 10.1159/000488060. Epub 2018 Mar 21.

PubMed ID
29765290 [ View in PubMed
]
Abstract

In the last couple of years, several extended half-life factor VIII and factor IX preparations were intensively studied and gained approval. In order to extend half-lives, techniques like fusion to protein conjugates (Fc part of IgG1 or albumin), chemical modification (PEGylation), and protein sequence modification are implemented. With these techniques, it is possible to extend half-lives of factor IX products 4- to 6- fold, while half-life extension of factor VIII products is limited to 1.5- to 2-fold due to their interaction with von Willebrand factor. Nevertheless, both extended half-life factor VIII and IX products have improved and facilitated prophylactic factor replacement therapy in hemophilia A and B, respectively. Extended half-life factor concentrates pose challenges to coagulation laboratories because accurate therapy monitoring is not possible with all factor activity assays currently used.

DrugBank Data that Cites this Article

Drugs
Drug Targets
DrugTargetKindOrganismPharmacological ActionActions
Damoctocog alfa pegolCoagulation factor VIIIProteinHumans
Yes
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