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  • Title: Acute myelofibrosis: response to recombinant human interferon alpha-2a.
    Author: List AF, Kummet TD, Kerr DM.
    Journal: Leuk Res; 1990; 14(4):321-6. PubMed ID: 2332985.
    Abstract:
    Acute myelofibrosis is a rare myeloproliferative syndrome characterized by bone marrow proliferation of atypical megakaryocytes, poor response to conventional leukemic therapy, and a fulminant clinical course. Because alpha interferon exhibits potent antiproliferative effects against megakaryocyte progenitors and human fibroblast cell lines, we treated two patients with acute myelofibrosis or the related syndrome of acute myelodysplasia with myelofibrosis with recombinant human interferon alpha-2a. Patient 1 received a 12-week course of interferon alpha (1-6 x 10(6) IU/d) after failure of two cytarabine-based chemotherapy regimens. Interferon administration resulted in prompt improvement in symptoms, stabilization of leukocyte count, and a reduction in circulating blast forms. Primary treatment with interferon (1-3 x 10(6) IU/d x 4 weeks) in patient 2 produced complete hematologic recovery with restoration of marrow cellularity and reduced marrow fibrosis. Our findings suggest that interferon alpha may have significant activity in the treatment of patients with acute myelofibrosis.
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