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Updated: Jan 31, 2026

Helical Organization of Blood Coagulation Factor VIII on Lipid Nanotubes
Published on: June 3, 2014
Anaphylaxis after treatment with recombinant factor VIII: investigation and therapeutic challenge
Sofia Pires1, Teresa Sevivas2, Carla Chaves Loureiro1
1Pediatric Department, Hospital Pediátrico de Coimbra, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Abstract:
We report a 10-year-old patient with haemophilia A developing anaphylaxis to recombinant factor VIII (octocog alfa). Allergic reactions, and especially anaphylactic events, are rare in patients with haemophilia A. The nature of these reactions is not fully understood. Here, we demonstrate a type I hypersensitivity reaction using sodium dodecyl sulfate-polyacrylamide gel electrophoresis immunoblotting assay. This test revealed itself as an essential diagnostic tool, as it allowed us to choose an alternative treatment (moroctocog alfa). Its safety was later confirmed by an uneventful challenge test.
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