Outcome of patients with myelodysplastic syndrome after failure of decitabine therapy.

Abstract

The prognosis of patients with myelodysplastic syndrome (MDS) after decitabine failure is not known. Data from 87 patients with MDS (n=67) and chronic myelomonocytic leukemia (n=.20) after failure of decitabine regimens were reviewed. After a median follow-up of 21 months from decitabine failure, 13 (15%) patients remained alive; the median survival was 4.3 months, and the estimated 12-month survival rate was 28%. The estimated 12-month survival rates were 27%, 33%, and 33%, respectively, for patients with high-risk, intermediate-2-risk, and intermediate-1-risk disease (P=.99) by the International Prognostic Scoring System. The estimated 12-month survival rates were 100%, 54%, 41%, and 18%, respectively, for patients with low-risk, intermediate-1-risk, intermediate-2-risk, and high-risk disease according to The University of Texas M. D. Anderson Cancer Center risk model (P=.01). The outcome of patients after decitabine failure is poor and appears to be predictable after decitabine failure.