NCI Drug Dictionary

The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

A synthetic benzamide derivative with potential antineoplastic activity. Entinostat binds to and inhibits histone deacetylase, an enzyme that regulates chromatin structure and gene transcription. This agent appears to exert dose-dependent effects in human leukemia cells including cyclin-dependent kinase inhibitor 1A (p21/CIP1/WAF1)-dependent growth arrest and differentiation at low drug concentrations; a marked induction of reactive oxygen species (ROS); mitochondrial damage; caspase activation; and, at higher concentrations, apoptosis. In normal cells, cyclin-dependent kinase inhibitor 1A expression has been associated with cell-cycle exit and differentiation. Check for active clinical trials using this agent. (NCI Thesaurus)

Synonym:HDAC inhibitor SNDX-275
Code name:MS 275
Chemical structure:
  • carbamic acid, N-[[4-[[(2-aminophenyl)amino]carbonyl]phenyl]methyl]-, 3- pyridinylmethyl ester
  • pyridin-3-ylmethyl ({4-[(2-aminophenyl)carbamoyl]phenyl}methyl)carbamate