Tazemetostat

Definition

An orally available, small molecule selective and S-adenosyl methionine (SAM) competitive inhibitor of histone methyl transferase EZH2, with potential antineoplastic activity. Upon oral administration, tazemetostat selectively inhibits the activity of both wild-type and mutated forms of EZH2. Inhibition of EZH2 specifically prevents the methylation of histone H3 lysine 27 (H3K27). This decrease in histone methylation alters gene expression patterns associated with cancer pathways and results in decreased tumor cell proliferation in EZH2 mutated cancer cells. EZH2, which belongs to the class of histone methyltransferases (HMTs), is overexpressed or mutated in a variety of cancer cells and plays a key role in tumor cell proliferation.

Also known as E 7438, E-7438, E7438, EPZ 6438, EPZ-6438, EPZ6438, N-((4,6-Dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl(oxan-4-yl)amino)-4-methyl-4'-((morpholin-4-yl)methyl)(1,1'-biphenyl)-3-carboxamide, N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-(ethyl(tetrahydro-2H-pyran-4-yl)amino)-4-methyl-4'-(morpholinomethyl)-[1,1'-biphenyl]-3-carboxamide, TAZEMETOSTAT — per NCIT

Also identified as

• ATC L01XX72 per RXNORM
• NCIT NCIT:C107506 per NCIT
• SCTID 840405005 per RXNORM
• SCTID 840407002 per RXNORM
• UNII Q40W93WPE1 per RXNORM

Indications