Title: Epidemiology of inhibitor formation with recombinant factor VIII replacement therapy
Authors: Peerlinck, Kathelijne ×
Hermans, C #
Issue Date: Nov-2006
Series Title: Haemophilia vol:12 issue:6 pages:579-590
Abstract: This article reviews the epidemiology of inhibitor formation in patients receiving recombinant factor VIII (rFVIII) replacement therapy for haemophilia A. Data from pivotal trial programmes, post-marketing surveillance studies, and pharmacovigilance studies for all available rFVIII products were reviewed. To date, no comparative studies have been performed, and in the non-comparative studies, there were differences in the patient population enrolled and study design (including the number of patient exposure days). In the absence of comparative clinical trials, it is not possible to make comparisons between inhibitor data for the various rFVIII products. This review of the epidemiological data shows that across the pivotal trial programmes for rFVIII products, the observed incidence of inhibitors was in the range of 15-32% in previously untreated patients (PUPs) and 0.9-2.9% in previously treated patients (PTPs). High-titre inhibitors (peak >5 BU) were detected in 10-16% of PUPs and 0-2.3% of PTPs. Several initiatives proposed to help standardize collection and interpretation of inhibitor data for patients receiving rFVIII treatment are described. Such standardization would help to clarify the epidemiology of inhibitor formation across FVIII treatments.
ISSN: 1351-8216
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular and Vascular Biology
× corresponding author
# (joint) last author

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