Outcomes of patients with myelodysplastic syndromes who achieve stable disease after treatment with hypomethylating agents | Aplastic Anemia and MDS International Foundation

Outcomes of patients with myelodysplastic syndromes who achieve stable disease after treatment with hypomethylating agents

Journal Title: 
Leuk Res.
Primary Author: 
Nazha A
Author(s): 
Nazha A, Sekeres MA, Garcia-Manero G, Barnard J, Al Ali NH, Roboz GJ, Steensma DP, DeZern AE, Zimmerman C, Jabbour EJ, Zell K, List AF, Kantarjian HM, Maciejewski JP, Komrokji RS; MDS Clinical Research Consortium
Original Publication Date: 
Tuesday, December 22, 2015

Treatment with hypomethylating agents (HMAs) improves overall survival (OS) in patients who achieve a response of stable disease (SD) or better (complete remission [CR], partial remission [PR], or hematologic improvement [HI]). It is not well established if patients who achieve SD at 4-6 months of therapy should be offered different therapies to optimize their response or continue with the same regimen. Clinical data were obtained from the MDS Clinical Research Consortium database. SD was defined as no evidence of progression and without achievement of any other responses. Of 291 patients treated with AZA or DAC, 55% achieved their best response (BR) at 4-6 months. Among patients with SD at 4-6 months, 29 (20%) achieved a better response at a later treatment time point. Younger patients with lower bone marrow blast percentages, and intermediate risk per IPSS-R were more likely to achieve a better response (CR, PR, or HI) after SD at 4-6 months. Patients with SD who subsequently achieved CR had superior OS compared to patients who remained with SD (28.1 vs. 14.4 months, respectively, p=.04). In conclusion, patients treated with HMAs who achieves CR after a SD status had longer survival with continuous treatment after 6 months.

Bone Marrow Diseases: