Summary of the WHO hearing on the development of product-specific reference materials for coagulation factor VIII and factor IX products
| Autor: | Stella C. Williams, Mikhail V Ovanesov, Elaine Gray, Johannes Dodt, C. Micha Nübling, Anneliese Hilger, Yuyun Maryuningsih |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Bioengineering Hemophilia A World Health Organization Haemophilia Applied Microbiology and Biotechnology Factor IX 03 medical and health sciences 0302 clinical medicine Labelling medicine Humans Potency In patient 030212 general & internal medicine Reference standards Pharmacology Factor IX products Factor VIII General Immunology and Microbiology Clinical Laboratory Techniques business.industry International reference standards Hämophilie Coagulation factor VIII Extended half-life factor VIII Coagulation factor IX General Medicine Reference Standards Coagulation Factor IX medicine.disease Recombinant Proteins Biotechnology 030104 developmental biology Coagulation Blood Coagulation Tests business |
| Zdroj: | Biologicals, 67:88-93 |
| ISSN: | 1045-1056 |
| DOI: | 10.1016/j.biologicals.2020.07.009 |
| Popis: | In recent years, several modified recombinant factor (F) VIII and FIX therapeutics with extended half-life have been licensed internationally for the treatment of haemophilia. Safe and effective use of these products requires monitoring of factor activity in patient plasma. The potency of all FVIII and FIX products is currently assigned in International Units (IU) which anchors the relationship between potency labelling, dosing and clinical monitoring. However, varying degrees of discrepancies in factor activity assays are observed between and within the factor activity analytical methods (one-stage clotting and chromogenic), when measuring these modified products against plasma and plasma-derived (concentrate) International Standards (IS) or in-house reference standard traceable to the IS. Availability of product-specific reference reagents would mitigate assay discrepancies, facilitate independent testing of assay methods and reagents, and ensure long-term continuity of the IU related to each product. A hearing meeting was organised by the WHO to discuss the requirements for product-specific reference materials for these products and whether these reference materials should be produced by the WHO. Advantages and disadvantages of product-specific reference materials were identified and discussed. |
| Databáze: | OpenAIRE |
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