Enasidenib (1446502-114-9) is a potent (IC50’s = 100 nM IDH2R140Q homodimer, 30 nM IDH2R140Q/WT heterodimer and 10 nM IDH2R172K/WT heterodimer) and selective inhibitor of mutant isocitrate dehydrogenase 2 (IDH2).1 It suppressed the production of the oncometabolite (R)-2-Hydroxyglutarate (a competitive inhibitor of αKG-dependent dioxygenases which leads to epigenetic dysregulation) and induced cellular differentiation in primary human IDH2 mutation-positive acute myeloid leukemia cells.1,2 Recently approved for clinical use by the FDA.
1) Yen et al. (2017), AG-221, A First-in-Class Therapy Targeting Acute Myeloid Leukemia Harboring Oncogenic IDH2 Mutations; Cancer Discov. 7 478
2) Amatangelo et al. (2017), Enasidenib induces acute myeloid leukemia cell differentiation to promote clinical response; Blood 130 732