• Medicina · Jan 2023

    The Addition of Hypomethylating Agents to Low-Intensity Induction Chemotherapy Does Not Improve Outcomes in Elderly Acute Myeloid Leukemia Patients: A Single-Center Retrospective Study.

    • Dan Liu, Xiaoyu Wang, Juan Tong, Li Zhou, Erling Chen, Ziwei Zhou, Lei Xue, Xuhan Zhang, Guangyu Sun, and Changcheng Zheng.
    • Department of Hematology, Anhui Provincial Hospital, WanNan Medical College, Wenchang Xi Road No. 22, Wuhu 241002, China.
    • Medicina (Kaunas). 2023 Jan 6; 59 (1).

    AbstractBackground and Objectives: This study aimed to evaluate whether the addition of hypomethylating agents (HMA) to low-intensity chemotherapy can enhance the clinical efficacy of induction treatment for elderly acute myeloid leukemia (AML) patients who are unsuitable for standard induction therapy. Materials and Methods: This study retrospectively analyzed 117 patients over 60 years old who were initially diagnosed with AML and received low-intensity induction treatment in the Department of Hematology in Anhui provincial hospital from January 2015 to December 2020. Twenty-three patients were excluded, and the remaining 94 patients were divided into two groups according to the selection of induction regimens. Results: Forty-four patients received HMA combined with low-intensity chemotherapy, and the other 50 patients received only low-intensity induction chemotherapy. Forty-three patients (45.7%) obtained complete remission (CR) after the initial induction treatment. The CR rate in the HMA plus low-intensity chemotherapy group was 34.1% (15/44), and in the single low-intensity chemotherapy group was 56.0% (28/50) (p = 0.04). The 30 days cumulative early death rates were 9.1% (95% CI: 3.5-22.4%) in the HMA plus low-intensity chemotherapy group and 6.0% (95% CI: 2.0-17.5%) in the single low-intensity chemotherapy group, respectively (p = 0.59), and the one-year cumulative relapse rates were 21.1% (95% Cl: 9.8-41.9%) and 33.3% (95% Cl: 20.3-51.5%), respectively (p = 0.80). The one-year overall survival (OS) rates for patients in the HMA plus low-intensity chemotherapy group and the single low-intensity chemotherapy group were 37.3% (95% Cl: 23.1-51.5%) and 55.4% (95% Cl: 40.5-67.9%), respectively (p = 0.098), and the one-year event-free survival (EFS) rates were 8.5% (95% Cl: 2.2-20.6%) and 20.6% (95% Cl: 9.1-35.3%), respectively (p = 0.058). Conclusions: This study showed that the addition of HMA to low-intensity induction chemotherapy does not improve prognosis in elderly AML patients who are unsuitable for standard induction chemotherapy.

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