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  • Title: Calibration of the Ph. Eur. human coagulation Factor VIII Concentrate BRP batch 6.
    Author: Raut S, Le Tallec D, Costanzo A.
    Journal: Pharmeur Bio Sci Notes; 2021; 2021():88-100. PubMed ID: 33973517.
    Abstract:
    The European Pharmacopoeia (Ph. Eur.) Biological Reference Preparation (BRP) for human coagulation Factor VIII (FVIII) Concentrate is used as working standard for potency determination of human coagulation FVIII preparations by chromogenic assay. BRP batch 5 was established in 2015 and its stocks were running low. Therefore, the European Directorate for the Quality of Medicines & HealthCare (EDQM) initiated a project (BSP156) for the calibration of a replacement batch. The potency of BRP batch 6 was assigned during an international collaborative study involving 16 laboratories worldwide, with reference to the WHO 8th International Standard (IS) and BRP batch 5. Participants were instructed to perform 3 independent FVIII potency assays following their own routine validated methods for the chromogenic assay, which is the assay prescribed by the Ph. Eur. As an outcome of the study, Ph. Eur. human coagulation FVIII Concentrate BRP batch 6 was assigned a consensus potency of 9.9 IU/ampoule for the chromogenic assay. The Ph. Eur. BRP batch 6 is a freeze-dried, plasma-derived concentrate. Based on accelerated degradation studies, the stability of the material is suitable for a reference preparation. The Ph. Eur. BRP batch 6 was adopted at the 167th session of the Ph. Eur. Commission in June 2020 and is available from the EDQM under product code H0920000.
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