NCI Drug Dictionary

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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.

ezatiostat hydrochloride
The hydrochloride salt of a liposomal small-molecule glutathione analog inhibitor of glutathione S-transferase (GST) P1-1 with hematopoiesis-stimulating activity. After intracellular de-esterification, the active form of ezatiostat binds to and inhibits GST P1-1, thereby restoring Jun kinase and MAPK pathway activities and promoting MAPK-mediated cellular proliferation and differentiation pathways. This agent promotes the proliferation and maturation of hematopoietic precursor cells, granulocytes, monocytes, erythrocytes and platelets. Check for active clinical trials using this agent. (NCI Thesaurus)

US brand name:Telintra
Code name:TLK199
Chemical structure:
  • ethyl (2R)-[(4S)-4-amino-5-ethoxy-5-oxopentanoyl]-S-benzyl-L-cysteinyl-2- phenylglycinate hydrochloride
  • glycine, L-γ-glutamyl-S-(phenylmethyl)-L-cysteinyl-2-phenyl-, diethyl ester, monohydrochloride, (2R)-