EvidenceAcute myeloid leukaemia

Post-transplant FLT3 inhibitor maintenance helps patients with detectable FLT3-ITD residual disease and can probably be spared in those without it; guidelines now describe maintenance for MRD-positive disease on this evidence.

Revumenib proved that a transcriptional dependency, rather than a kinase, can be drugged in leukaemia, opening treatment for two genetic subgroups that together cover roughly a third of AML plus most infant ALL. It is now approved and is being combined with venetoclax-azacitidine and intensive chemotherapy in front-line trials. Single-agent remissions are often short without transplant.

QuANTUM-First gave FLT3-ITD AML patients a second front-line targeted option and showed that continuing a FLT3 inhibitor as long-term maintenance, including after transplant, pays off. Quizartinib was approved for this indication in 2023. Head-to-head data against midostaurin are lacking, and the design leaves open how much of the benefit came from maintenance.

AGILE showed that for the roughly 6-10% of AML patients with an IDH1 mutation, a targeted doublet produces survival in the range of two years, an outcome previously unimaginable in unfit patients. Ivosidenib-azacitidine is approved and is one option alongside venetoclax-azacitidine for these patients. Which regimen, or triplet, is best for IDH1-mutated disease has not been settled by a randomised trial.

Bortezomib should not be added to standard chemotherapy for childhood acute myeloid leukaemia; the trial's FLT3-ITD sorafenib cohorts were reported separately.

The first maintenance therapy shown to lengthen survival in acute myeloid leukaemia; oral azacitidine (Onureg) was approved in the United States in 2020 for patients in first remission who cannot complete intensive curative therapy.

VIALE-A turned a palliative regimen into one that produces remission in two-thirds of older AML patients and is now the reference treatment for anyone not fit for intensive chemotherapy. It shifted the field towards lower-intensity targeted combinations and opened the door to adding FLT3, IDH and menin inhibitors to the backbone. Cure remains uncommon and most patients relapse within two years.

ADMIRAL showed that a targeted oral drug can beat chemotherapy outright in relapsed AML, and made gilteritinib the standard bridge to transplant for FLT3-mutated relapse. Its success also underpinned FLT3 inhibitor use in first-line combinations. Resistance through FLT3-independent clones and RAS pathway mutations limits durability without transplant.

Many older people carry blood clones one or two steps from leukaemia, and those clones also drive heart disease through inflammation. CHIP is why blood-based cancer tests must filter out mutations from blood cells, and it opens a route to preventing both leukaemia and cardiovascular events in carriers.

This is the trial behind the 2008 European authorisation of Ceplene, one of very few maintenance immunotherapies ever approved in acute myeloid leukaemia. The abstract reports no overall survival benefit and the drug is little used today, with oral azacitidine and targeted maintenance filling the space.

The paper launched two decades of work on tumour-initiating cells in solid cancers, on why relapse follows apparently complete responses, and on measuring residual disease at the level of the cells that can regrow it. It also connected developmental biology pathways to cancer drug discovery.