Improved treatment results in Mexican children with acute myeloid leukemia using a Medical Research Council (MRC)-acute myeloid leukemia 10 modified protocol

2009 
We analysed the results of three protocols from 1990 to 2005. Protocol I (1990–1996) consisted of a 2 year VAPA regime. Protocol II (1996–2003) on 1 year daunorubicin/cytarabine alternating with etoposide/cytarabine. Protocol III (2003–2005) on six cycles MRC AML 10 modified. Patients with de novo acute myeloid leukemia 0 to 18 years were included. Demographic and clinical characteristics were analysed. Patients with >100,000 leukocytes, M4 or M5 and primary CNS disease were considered high risk. We compared remission rate, overall and event-free survival. Descriptive statistics, chi square, Kaplan-Meier and long rank tests were used. One hundred forty-five patients were included, 46 in Protocol I; 60 in II and 39 in III. There were no differences in characteristics between groups, except for more low risk patients in Protocol II (61%vs. 43% and 41%. (p = 0.05). Remission rate for Protocol I was 52%, for II 50% and for III 92% (p = 0.0001). Relapse was 18, 30 and 35, respectively (p = 0.141). Five-year ev...
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