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  • Title: Comparison of Azacitidine and Decitabine in Myelodysplastic Syndromes and Acute Myeloid Leukemia: A Network Meta-analysis.
    Author: Liu W, Zhou Z, Chen L, Wang X.
    Journal: Clin Lymphoma Myeloma Leuk; 2021 Jun; 21(6):e530-e544. PubMed ID: 33716056.
    Abstract:
    BACKGROUND: Myelodysplastic syndromes (MDS) and acute myeloid leukemia (AML) are hematologic malignancies that mostly affect the elderly and have a poor prognosis. Azacitidine (AZA) and decitabine (DAC) are the most widely used hypomethylating agents. However, few randomized controlled trials (RCTs) have compared AZA and DAC head to head in MDS or AML. This study intended to conduct a network meta-analysis to compare the 2 drugs to provide more guidance using evidence-based medicine. PATIENTS AND METHODS: A comprehensive search for RCTs was performed till July 31, 2020. The network meta-analysis was conducted using the Markov chain Monte Carlo method. The primary endpoints were overall survival (OS) and the incidence of adverse events, and the secondary endpoints were complete remission (CR) rate, overall remission rate (ORR), and AML-free survival. There were 6 RCTs with 1072 MDS patients, and 3 RCTs with 1256 AML patients. RESULTS: In MDS, AZA showed better AML-free survival (hazard ratio = 0.62; 95% CI, 0.43-0.9), whereas DAC had the possibility of achieving better CR and ORR, and AZA had the possibility of obtaining better OS with lower toxicity. As for elderly AML patients, DAC had the possibility of achieving superior CR, ORR, and OS, while the toxicity was relatively higher. Furthermore, subgroup analysis for patients ≥ 75 years old or of high risk in MDS suggested that AZA achieved better OS. CONCLUSION: For MDS, especially patients with intermediate or high risk disease with advanced age and poor general condition, AZA may be a better choice, while DAC may be of more benefit in elderly AML patients.
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