Resistance to recombinant alpha interferon therapy in idiopathic mixed cryoglobulinemia: reinduction of remission by natural alpha interferon both in antibody-positive and -negative patients.

Abstract

A subset of patients treated with recombinant interferon alpha-2a (rIFN-alpha 2a) for idiopathic mixed cryoglobulinemia (IMC) developed clinical resistance to therapy after a sustained response. Neutralizing antibodies to rIFN-alpha 2a were found in the sera of three out of four such patients, and in none of the patients who remained responsive to treatment… (More)

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