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Fms-like tyrosine kinase 3 (FLT3) mutations, present in over 30% of acute myeloid leukemia (AML) cases and dominated by FLT3-internal tandem duplication (FLT3-ITD), are associated with poor outcomes in patients with AML. While tyrosine kinase inhibitors (TKIs; e.g., gilteritinib) are effective, they face challenges such as drug resistance, relapse, and high costs. Here, we report that metformin, a cheap, safe, and widely used anti-diabetic agent, exhibits a striking synergistic effect with gilteritinib in treating FLT3-ITD AML. Metformin significantly sensitizes FLT3-ITD AML cells (including TKI-resistant ones) to gilteritinib. Metformin plus gilteritinib (low dose) dramatically suppresses leukemia progression and prolongs survival in FLT3-ITD AML mouse models. Mechanistically, the combinational treatment cooperatively suppresses polo-like kinase 1 (PLK1) expression and phosphorylation of FLT3/STAT5/ERK/mTOR. Clinical analysis also shows improved survival rates in patients with FLT3-ITD AML taking metformin. Thus, the metformin/gilteritinib combination represents a promising and cost-effective treatment for patients with FLT3-mutated AML, particularly for those with low income/affordability.
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http://dx.doi.org/10.1016/j.xcrm.2024.101645 | DOI Listing |
Background: Nucleophosmin 1 (NPM1) mutations represent one of the most frequent genetic alterations in acute myeloid leukemia (AML). However, the prognostic significance of concurrent molecular abnormalities and clinical features in NPM1-mutated AML remains to be fully elucidated.
Methods: We retrospectively analyzed 73 adult AML patients with NPM1 mutations.
Leuk Res
August 2025
Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, PR China; Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, PR China. Elec
Background: The effect of sorafenib in acute myeloid leukemia (AML) patients with low-allelic-ratio FMS-like tyrosine kinase 3 internal tandem duplication(FLT3-ITD) is still unclear.
Objective: The purpose of this study was to evaluate whether sorafenib can improve prognosis in FLT3-ITD AML patients.
Study Design: In this study, the effect of sorafenib on the prognosis of patients with FLT3-ITD AML was retrospectively explored.
Arch Pathol Lab Med
September 2025
Global Companion Diagnostics, Daiichi Sankyo Co., Ltd., Tokyo, Japan (Ito).
Context.—: The phase 3 study Quizartinib With Standard of Care Chemotherapy and as Continuation Therapy in Patients With Newly Diagnosed FLT3-ITD (+) Acute Myeloid Leukemia (AML) (QuANTUM-First; NCT02668653) demonstrated improved overall survival (OS) in newly diagnosed patients with FMS-like tyrosine kinase 3 (FLT3) internal tandem duplication-positive AML treated with the FLT3 inhibitor quizartinib over placebo, leading to the approval of quizartinib in this population.
Objective.
While allogeneic stem cell transplantation (allo-SCT) is the preferred consolidation for high and most intermediate-risk acute myeloid leukemia (AML) patients in first remission, the role of autologous SCT (auto-SCT) vs. chemotherapy (CT) when allo-SCT is not feasible or indicated, remains controversial. We conducted a real-world, retrospective cohort study using the PETHEMA AML registry to compare auto-SCT and CT.
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August 2025
Accredited Research Group On Hematology, Instituto de Investigación Sanitaria La Fe (IISLAFE), Valencia, Spain.
Purpose: Quizartinib pharmacokinetics in FLT3-ITD negative acute myeloid leukemia (AML) remain largely unexplored. This study aims to validate a population pharmacokinetics model (popPK) for quizartinib in plasma samples of FLT3-ITD negative AML patients. To do so, an ultra-performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS) method has been developed and validated for the quantification of quizartinib.
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