PMID- 25096922 OWN - NLM STAT- MEDLINE DCOM- 20150622 LR - 20140909 IS - 1095-8320 (Electronic) IS - 1045-1056 (Linking) VI - 42 IP - 5 DP - 2014 Sep TI - Quantifying the thrombogenic potential of human plasma-derived immunoglobulin products. PG - 260-70 LID - S1045-1056(14)00068-2 [pii] LID - 10.1016/j.biologicals.2014.04.002 [doi] AB - Polyvalent immunoglobulin G (IgG) products obtained by fractionation of human plasma are used to treat a broad range of conditions, including immunodeficiency syndromes and autoimmune, inflammatory, and infectious diseases. Recent incidences of increased thromboembolic events (TEEs) associated with intravenous (IV) IgG (IVIG) led to recalls of some products and increased regulatory oversight of manufacturing processes in order to ensure that products are essentially free of procoagulant/thrombogenic plasma protein contaminants. Laboratory investigations have now identified activated factor XI (FXIa) as the likely causative agent of IVIG-related TEEs. Quantification of the thrombogenic potential is becoming a requirement made to fractionators (a) to validate the capacity of IVIG and subcutaneous IgG manufacturing processes to remove procoagulant contaminants and (b) to establish the safety of the final products. However, in the absence of a recommended test by the main regulatory authorities, several analytical approaches have been evaluated by fractionators, regulators, and university groups. This review focuses on the scientific rationale, merits, and applications of several analytical methods of quantifying the thrombogenic potential of IgG products and intermediates to meet the latest regulatory requirements. CI - Copyright (c) 2014 The International Alliance for Biological Standardization. Published by Elsevier Ltd. All rights reserved. FAU - Germishuizen, W A AU - Germishuizen WA AD - National Bioproducts Institute, Pinetown, South Africa. FAU - Gyure, D C AU - Gyure DC AD - National Bioproducts Institute, Pinetown, South Africa. FAU - Stubbings, D AU - Stubbings D AD - National Bioproducts Institute, Pinetown, South Africa. FAU - Burnouf, T AU - Burnouf T AD - Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, 250 Wuxing St., Taipei City 110, Taiwan. Electronic address: tburnou@attglobal.net. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20140802 PL - England TA - Biologicals JT - Biologicals : journal of the International Association of Biological Standardization JID - 9004494 RN - 0 (Biological Products) RN - 0 (Blood Coagulation Factors) RN - 0 (Immunoglobulin G) RN - 0 (Immunoglobulins, Intravenous) RN - 0 (Immunologic Factors) RN - EC 3.4.21.27 (Factor XIa) SB - IM MH - Animals MH - Biological Products/*adverse effects/*blood/standards MH - Blood Coagulation Factors/adverse effects/isolation & purification MH - Chemistry, Pharmaceutical MH - Drug Contamination/prevention & control MH - Factor XIa/adverse effects/isolation & purification MH - Humans MH - Immunoglobulin G/*adverse effects/*blood MH - Immunoglobulins, Intravenous/adverse effects/standards MH - Immunologic Factors/adverse effects/blood MH - Risk Assessment MH - Thromboembolism/blood/*etiology/immunology OTO - NOTNLM OT - FXIa OT - IVIG OT - Procoagulant OT - SCIG OT - Thrombosis EDAT- 2014/08/07 06:00 MHDA- 2015/06/24 06:00 CRDT- 2014/08/07 06:00 PHST- 2014/01/30 00:00 [received] PHST- 2014/04/24 00:00 [revised] PHST- 2014/04/29 00:00 [accepted] PHST- 2014/08/07 06:00 [entrez] PHST- 2014/08/07 06:00 [pubmed] PHST- 2015/06/24 06:00 [medline] AID - S1045-1056(14)00068-2 [pii] AID - 10.1016/j.biologicals.2014.04.002 [doi] PST - ppublish SO - Biologicals. 2014 Sep;42(5):260-70. doi: 10.1016/j.biologicals.2014.04.002. Epub 2014 Aug 2.