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Novel lysine‐specific histone demethylase 1 inhibitor in acute myeloid leukaemia transformed from essential thrombocythaemia
Author(s) -
Hodges Samantha,
Cooney Julian
Publication year - 2022
Publication title -
cancer reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.261
H-Index - 5
ISSN - 2573-8348
DOI - 10.1002/cnr2.1588
Subject(s) - cancer research , myeloid , demethylase , myeloproliferative neoplasm , myeloid leukemia , targeted therapy , medicine , myelofibrosis , immunology , biology , histone , gene , cancer , genetics , bone marrow
Background While progress continues in the understanding of molecular abnormalities in acute myeloid leukaemia (AML), with some specific targeted therapies now available, it remains commonly fatal in the elderly. Leukaemic evolution and transformation from myeloproliferative neoplasms (MPN) may be associated with increased numbers of mutations in the genes associated with myeloid neoplasm and the prognosis in such patients is invariably dismal. Targeting of intracellular enzymes associated with integral cellular function has advanced understanding and promises improvements in treatments. Case We report impressive prolonged response to therapy in a case of secondary AML, arising from essential thrombocythaemia (ET). The trial agent, the oral lysine‐specific histone demethylase 1 (LSD1) inhibitor Bomedemstat (IMG‐7289) was well tolerated. In addition to suppressing the malignant clone, these blasts showed differentiation to monocytes morphologically as well as by surface markers seen on flow cytometry. Bomedemstat has efficacy in the treatment of myelofibrosis and may have a special role in treatment of specific AML subtypes, including secondary leukaemias arising from MPN as seen. Conclusion We report a case of an older adult with secondary AML transformed from ET, with a remarkable response to LSD1 inhibition with Bomedemstat, with prolonged reduction in blasts demonstrating differentiation to monocytes.

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