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Medline ® Abstract for Reference 30

of '复发或难治性急性髓系白血病的治疗'

Comparison of 'sequential' versus 'standard' chemotherapy as re-induction treatment, with or without cyclosporine, in refractory/relapsed acute myeloid leukaemia (AML): results of the UK Medical Research Council AML-R trial.
Liu Yin JA, Wheatley K, Rees JK, Burnett AK, UK MRC Adult Leukemia Working Party
Br J Haematol. 2001;113(3):713.
This aim of the acute myeloid leukaemia (AML)-R trial was to compare sequential (Seq) ADE (cytarabine, daunorubicin, etoposide) with standard (Std) ADE as remission re-induction treatment and to assess any benefit of cyclosporine (CSA) as a multidrug resistance modulator in refractory/relapsed AML patients. Seq ADE, based on the concept of Timed Sequential Therapy, comprised the same drugs as Std ADE but given at higher doses and in a different sequence. Between 1992 and 1997, 235 patients with relapsed (175) and refractory (60) AML were entered: 170 were randomized between Std versus Seq ADE and 213 between CSA versus no CSA. CSA was initially given at a dose of 5 mg/kg/d and increased to 10 mg/kg/d in the latter part of the trial. Overall, the complete remission (CR) rate was 43%, with Std ADE being significantly better than Seq ADE (54% versus 34%, P = 0.01). CR rates did not differ between the CSA and no CSA arms (41% versus 45%, P = 0.6). Overall, 3 year disease-free survival (DFS) of remitters was 16%, with a relapse risk of 70%. DFS was not significantly different between the chemotherapy or the CSA arms. Overall, 3 year survival was 8%. Survival with Std ADE was significantly better than with Seq ADE (12% versus 6%, P = 0.03). CSA did not affect overall survival,except in patients>or = 60 years, who fared worse on CSA (P = 0.0003). No difference in haematological toxicity between the chemotherapy or CSA arms was seen. Survival was better with longer first CR duration (P<0.0001). We conclude that Std ADE was superior to Seq ADE for CR achievement and survival, with no benefit with CSA, at the doses used in this study.
Royal Infirmary, Manchester, UK. jyin@labmed.cmht.nwest.nhs.uk