All content on this site is intended for healthcare professionals only. By acknowledging this message and accessing the information on this website you are confirming that you are a Healthcare Professional. If you are a patient or carer, please visit Know AML.

  TRANSLATE

The aml Hub website uses a third-party service provided by Google that dynamically translates web content. Translations are machine generated, so may not be an exact or complete translation, and the aml Hub cannot guarantee the accuracy of translated content. The aml and its employees will not be liable for any direct, indirect, or consequential damages (even if foreseeable) resulting from use of the Google Translate feature. For further support with Google Translate, visit Google Translate Help.

The AML Hub is an independent medical education platform, sponsored by Daiichi Sankyo, Johnson & Johnson, and Syndax, and has been supported through an educational grant from the Hippocrate Conference Institute, an association of the Servier Group. The funders are allowed no direct influence on our content. The levels of sponsorship listed are reflective of the amount of funding given.  View funders.

Now you can support HCPs in making informed decisions for their patients

Your contribution helps us continuously deliver expertly curated content to HCPs worldwide. You will also have the opportunity to make a content suggestion for consideration and receive updates on the impact contributions are making to our content.

Find out more

AML19 trial Midotarg substudy: Gemtuzumab ozogamicin + midostaurin in FLT3-mutated AML

By Sheetal Bhurke

Share:

Oct 22, 2025

Learning objective: After reading this article, learners will be able to cite a new clinical development in acute myeloid leukemia.


Results from the Midotarg substudy of the phase III AML19 trial (ISRCTN78449203), evaluating the efficacy and safety of gemtuzumab ozogamicin (GO) and midostaurin (m) in combination with daunorubicin and cytarabine (DA) in 77 patients aged <60 with newly diagnosed FLT3-mutated acute myeloid leukemia (AML), were published by Russell et al. in Blood Advances

Key data: The overall response rate (ORR) was 91% in all patients after two induction cycles. The 2-year overall survival (OS), event-free survival (EFS), and cumulative incidence of relapse (CIR) rates were 77%, 62%, and 31%, respectively. Among evaluable patients, 81% were NPM1-measurable residual disease (MRD) negative, and all patients had FLT3-MRD levels <0.01%. DAGO + m was well tolerated with 0% mortality at Day 30 and 60, with no increased toxicity.   

Key learning: The Midotarg substudy demonstrated that DAGO + m was safe and effective in younger patients with newly diagnosed FLT3-mutated AML. DAGO + m is currently being evaluated in a randomized phase II/III trial (OPTIMISE-FLT3).  

References

Please indicate your level of agreement with the following statements:

The content was clear and easy to understand

The content addressed the learning objectives

The content was relevant to my practice

I will change my clinical practice as a result of this content

Your opinion matters

When choosing treatment for patients with AML, how much is your selection influenced by your personal experience with a treatment’s safety profile?