enasidenib mesylate
(EH-nuh-SIH-deh-nib MEH-zih-layt)
A drug used to treat adults with acute myeloid leukemia that has come back or has not gotten better with other treatment. It is used in patients whose cancer has a mutation (change) in the IDH2 gene. It is also being studied in the treatment of other types of cancer. Enasidenib mesylate blocks the protein made by the mutated IDH2 gene. Blocking this protein may help keep cancer cells from growing. Enasidenib mesylate is a type of enzyme inhibitor. Also called Idhifa.