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Successful treatment of acquired factor VIII inhibitor with cyclosporin


Dr Y. L. Kwong, University Department of Medicine, Professorial Block, Queen Mary Hospital, Pokfulam Road, Hong Kong.
Tel.: (852) 2 855 4597; fax: (852) 2 974 1165;


Summary.  Acquired factor VIII inhibitor causes a rare but life-threatening form of bleeding disorder, owing to the formation of auto-antibodies against FVIII. Treatment modalities include the use of immunosuppressive drugs such as cyclophosphamide and corticosteroids, plasmapheresis and i.v. immunoglobulin. A patient with idiopathic acquired FVIII inhibitor presented with serious bleeding complications resistant to all the above therapeutic modalities. Treatment with cyclosporin, however, resulted in a prompt and complete response. The lack of side-effects and the relatively quick response suggest that cyclosporin may be tried as front line treatment for patients with acquired FVIII inhibitors.