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  • Title: Recombinant interferon-alpha-2b treatment of hairy-cell leukaemia: experience with a low-dose schedule.
    Author: Hasselbalch H, Braide I, Lisse I, Röckert LL, Swolin B, Carneskog J, Hagberg H, Hippe E, Jensen MK, Lundin P.
    Journal: Eur J Haematol; 1988 Nov; 41(5):438-44. PubMed ID: 3061836.
    Abstract:
    50 patients with hairy cell leukaemia (HCL) were treated with recombinant interferon (IFN) alpha-2b 2.0 x 10(6) IU/m2 subcutaneously three times weekly to evaluate the efficacy of low-dose IFN therapy in inducing and maintaining remission of the disease. At the time of this report 48 patients, of whom 22 were splenectomized, had been treated for at least 3 months and were considered evaluable for response. The median observation time on IFN-alpha-2b was 11 months (range 3 to 20). 4 cases with atypical disease (spongy lymphoid myelofibrosis) were also included. All patients responded to IFN. After 3 months 11/48 patients (23%) had achieved a partial remission (PR) with normalization of peripheral blood values. After 6 months 27/43 patients (63%) had achieved a favourable response; complete remission (CR) was recorded in 4 and PR in 23 patients. The proportion of patients with favourable responses (CR + PR) increased with the duration of therapy and after 12 months of therapy 23/28 (82%) patients showed CR or PR, 9 patients (32%) being in CR. Splenectomized patients disclosed a trend towards a more rapid response. It is concluded that IFN-alpha-2b is a highly effective first-line therapy for HCL.
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