Abstract
A total of 120 patients with high-risk myelodysplastic syndrome (MDS) and AML progressed from MDS (MDS–AML) were registered in a randomized controlled study of the Japan Adult Leukemia Study Group (JALSG). Untreated adult patients with high-risk MDS and MDS–AML were randomly assigned to receive either idarubicin and cytosine arabinoside (IDR/Ara-C) (Group A) or low-dose cytosine arabinoside and aclarubicin (CA) (Group B). The remission rates were 64.7% for Group A (33 of 51 evaluable cases) and 43.9% for Group B (29 out of 66 evaluable cases). The 2-year overall survival rates and disease-free survival rates were 28.1 and 26.0% for Group A, and 32.1 and 24.8% for Group B, respectively. The duration of CR was 320.6 days for Group A and 378.7 days for Group B. There were 15 patients who lived longer than 1,000 days after diagnosis: 6 and 9 patients in Groups A and B, respectively. However, among patients enrolled in this trial, intensive chemotherapy did not produce better survival than low-dose chemotherapy. In conclusion, it is necessary to introduce the first line therapy excluding the chemotherapy that can prolong survival in patients with high-risk MDS and MDS–AML.
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Acknowledgments
We would like to thank the participating physicians in the Japan Adult Leukemia Study Group (JALSG) MDS200 study for their cooperation. This work was supported in part by grants-in-aid for Scientific Research from the Japanese Ministry of Education, Culture, Sport, Science, and Technology, and grants-in-aid for Cancer Research from the Japanese Ministry of Health, Labor, and Welfare.
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For the Japan Adult Leukemia Study Group.
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Morita, Y., Kanamaru, A., Miyazaki, Y. et al. Comparative analysis of remission induction therapy for high-risk MDS and AML progressed from MDS in the MDS200 study of Japan Adult Leukemia Study Group. Int J Hematol 91, 97–103 (2010). https://doi.org/10.1007/s12185-009-0473-4
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DOI: https://doi.org/10.1007/s12185-009-0473-4