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  • Title: AML patients with Down syndrome have a high cure rate with AML-BFM therapy with reduced dose intensity.
    Author: Creutzig U, Reinhardt D, Diekamp S, Dworzak M, Stary J, Zimmermann M.
    Journal: Leukemia; 2005 Aug; 19(8):1355-60. PubMed ID: 15920490.
    Abstract:
    Despite improved prognosis in acute myelogenous leukaemia (AML) children with Down syndrome (DS), therapy-related toxicity remained a problem. We compared 67 DS patients from study AML-BFM 98 with 51 DS patients of the previous study AML-BFM 93, and the non-DS groups of both studies. Compared to non-DS patients, DS patients were treated with reduced anthracycline doses, without high-dose cytarabine/mitoxantrone and without cranial irradiation. AML-DS patients were in median 1.8 years old, and 102/118 (86%) showed the typical morphology of acute megakaryoblastic leukaemia. In study 93, seven DS patients did not receive AML-specific chemotherapy, and treatment modifications were more common. Results improved significantly for patients treated in study 98 with a 3-year survival of 91+/-4 vs 70+/-7% in study 93 (P=0.001). There were no differences in outcome concerning the age groups 0-<or=2 and 2-<or=4 years (event-free survival for treated patients 0-<or=2 years 83+/-4%, 2-<or=4 years 81+/-7%). The cumulative incidence of relapses was significantly lower in DS (7+/-3%) than in non-DS patients (28+/-7%). Therapy-related toxicity was generally lower in DS patients treated according to study 98. We conclude that a standardised and dose-reduced treatment schedule including the main components of AML treatment is advisable for AML children with DS.
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