Management of chronic myeloid leukemia in chronic phase with autologous stem cell transplantation and alpha-2 interferon: Cytogenetic and clinical results
1993
Forty-eight patients with chronic myeloid leukemia (CML) in chronic phase (CP) were treated by autologous stem cells transplantation (ASCT) and α Interferon (IFN) with three approaches: 1) ASCT at diagnosis followed by IFN, 2) ASCT post IFN with cells collected after an interval from IFN discontinuance, followed by IFN, 3) ASCT in patients selected by cytoconversion obtained with IFN, performed soon after IFN discontinuance. Following ASCT, a major karyotype response (more than 65% Ph1 negative cells, MKR) was observed at least once in 40%, 53% and 83% of patients from the three groups, respectively. At last follow-ups (median 39, 40 and 21 months, respectively) 19%, 13% and 67% of patients still present a MKR with 2 patients from group 1 and 4 patients from group 3 being 100% Ph1 negative. Projected survival from diagnosis is 77% at 52 months for patients from group 1 and 47% at 75 months for patients from group 2. Present data indicate that 1) IFN can stabilize results obtained with ASCT, 2) ASCT can po...
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