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  • Title: Treatment with natural IFN of hepatitis C patients with or without antibodies to recombinant IFN.
    Author: Milella M, Antonelli G, Santantonio T, Giannelli G, Currenti M, Monno L, Turriziani O, Pastore G, Dianzani F.
    Journal: Hepatogastroenterology; 1995 Jul; 42(3):201-4. PubMed ID: 7590565.
    Abstract:
    The purpose of this study was to evaluate if a retreatment with natural human interferon alpha could lead to a recovery of the therapeutic responsiveness in non-responder patients with chronic hepatitis C who did (9 cases) or did not (14 cases) develop anti-interferon neutralizing antibodies while on treatment with recombinant interferon alpha2a. During retreatment, no patient developed detectable levels of neutralizing antibodies to natural interferon. At the end of retreatment, 6/9 positive patients showed a complete response to natural interferon therapy, while only 1/14 negative patients had a partial response. These data suggest that a second course of treatment with the natural preparation may be useful in patients who failed to respond to an earlier course of recombinant interferon, particularly the anti-interferon positive patients who showed hepatitis reactivation after an initial response concomitantly with antibody appearance. Conversely, a second course of natural interferon therapy might be useless in cases in which the lack of response is not associated to antibody development.
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