Trial reportNature communications2026
Quizartinib and omacetaxine mepesuccinate combination therapy in FLT3-ITD AML: a phase II trial.
Trial report in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03135054 (A Phase II Single-arm Open-labeled Study Evaluating Combination of Quizartinib and Omacetaxine Mepesuccinate), which is not on this map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Phase II Single-arm Open-labeled Study Evaluating Combination of Quizartinib and Omacetaxine Mepesuccinate (QUIZOM) in Newly Diagnosed or Relapsed/Refractory AML Carrying FLT3-ITD
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Authors and funding
19 authors.
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Abstract
FLT3-ITD inhibitors are approved for acute myeloid leukemia (AML) treatment but relapse is common. In this study, the combined inhibition of FLT3-ITD signal and protein translation by QUIZartinib and Omacetaxine Mepesuccinate (QUIZOM) synergistically suppressed the most critical FLT3-ITD survival signals including mitochondrial respiration and proteostasis, which induced apoptosis and pro-inflammatory response. In a Phase 2 trial (NCT03135054) involving 40 chemo-refractory/unfit FLT3-ITD AML patients, QUIZOM achieved a composite complete remission (CRc) of 83%, a median leukemia-free survival (LFS) of 10 months (Range: 0.7-68.2 months) and a median overall survival (OS) of 12.9 months (Range: 1.8-69.2 months). 13/33 (39%) received allogeneic HSCT after a median of 143 days (Range: 53-367 days). Higher CRc rates were observed in patients with NPM1 mutations, DNMT3A mutations, and wild-type WT1. Single-cell RNA-sequencing of QUIZOM cohort revealed positive correlation between pro-inflammatory response in blasts, CD8 + T activation and clinical responsiveness. Further, we identified a leukemic stem cell (LSC) subpopulation with activated JNK/JUN/HSPA1B axis via PLD1-driven phosphatidylcholine metabolism, which promoted proteostasis and drove QUIZOM resistance. PLD1-inhibitor remodeled phospholipid metabolism, induced ferroptosis and restored QUIZOM response in LSC. Our findings provided the therapeutic and resistant mechanisms of QUIZOM and paved the way for targeted interventions in this AML subtype.
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