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  • Title: Collaborative study for the establishment of Human immunoglobulin (molecular size) BRP replacement batches 4, 5 and 6.
    Author: Jouette S, Regourd E.
    Journal: Pharmeur Bio Sci Notes; 2024; 2024():90-105. PubMed ID: 38967620.
    Abstract:
    Human immunoglobulin products are used for the treatment of a number of diseases, such as primary or secondary immunodeficiencies and autoimmune conditions due to the complete absence of antibodies or the production of defective immunoglobulins. Quality control of human immunoglobulin products is essential to ensure therapeutic functionality and safety. This includes testing for Fc function and anticomplementary activity (ACA), as well as verification of appropriate molecular size distribution using size-exclusion chromatography as prescribed in the European Pharmacopoeia (Ph. Eur.) monographs 0338, 0918, 2788 and 1928. To this end, specific biological reference preparations (BRPs) must be used. Stocks of the Ph. Eur. Human immunoglobulin (molecular size) BRP were running low and therefore a collaborative study was run by the European Directorate for the Quality of Medicines & HealthCare (EDQM), under the aegis of the Biological Standardisation Programme, to calibrate replacement batches. Eighteen laboratories, including manufacturers and Official Medicines Control Laboratories, took part in the study. Three batches of candidate BRPs were assessed and compared to Ph. Eur. Human immunoglobulin (molecular size) BRP 3 to ensure continuity. Based on the study results, the candidate BRPs were adopted by the Ph. Eur. Commission as Ph. Eur. Human immunoglobulin (molecular size) BRP batch 4, 5 and 6.
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