Successful reinstitution of agalsidase beta therapy in Fabry disease patients with previous IgE-antibody or skin-test reactivity to the recombinant enzyme

Abstract

Purpose: To determine if enzyme replacement therapy, involving intravenous infusions of recombinant human α-galactosidase A (agalsidase beta; Fabrazyme®), could be safely continued in patients with Fabry disease who had been withdrawn from a previous clinical trial as a precautionary, protocol-specified measure due to detection of serum IgE antibodies or skin-test reactivity to agalsidase beta.Methods: The rechallenge infusion protocol specified strict patient monitoring conditions and graded dosing and infusion-rate schemes that were adjusted according to each patient's tolerance to the infusion. Six males (age: 26–66 years) were enrolled.Results: During rechallenge, five patients received between 4 and 27 infusions; one patient voluntarily withdrew after one infusion because of recurrence of infusion-associated reactions. No anaphylactic reactions occurred. All adverse events, including four serious adverse events, were mild or moderate in intensity. Most treatment-related adverse events occurred during infusions (most commonly urticaria, vomiting, nausea, chills, pruritus, hypertension) and were resolved by infusion rate reductions and/or medication. After participation in the study, all patients, including the one who withdrew after one infusion, transitioned to commercial drug.Conclusions: Agalsidase beta therapy can be successfully reinstated in patients with Fabry disease who have developed IgE antibodies or skin test reactivity to the recombinant enzyme.

DOI: 10.1097/GIM.0b013e318170f868

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@article{Bodensteiner2008SuccessfulRO, title={Successful reinstitution of agalsidase beta therapy in Fabry disease patients with previous IgE-antibody or skin-test reactivity to the recombinant enzyme}, author={David C. Bodensteiner and Catherine R Scott and Katherine Bustin Sims and Gillian M Shepherd and Rebecca D Cintron and Dominique P Germain}, journal={Genetics in Medicine}, year={2008}, volume={10}, pages={353-358} }