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.

liarozole fumarate
The orally active fumarate salt of the benzimidazole derivative liarozole with potential antineoplastic activity. As a retinoic acid metabolism blocking agent (RAMBA), liarozole inhibits cytochrome P450-dependent all-trans-retinoic acid (ATRA)-4-hydroxylase, resulting in an increase in endogenous ATRA production, inhibition of cell proliferation, and induction of cell differentiation. This agent also inhibits aromatase, the enzyme that catalyzes the final, rate-limiting step in estrogen biosynthesis. Check for active clinical trials using this agent. (NCI Thesaurus)

Code name:R85246
Chemical structure:
  • (+-)-5-(m-chloro-alpha-imidazol-1-ylbenzyl)benzimidazole fumarate (2:3)
  • 1H-benzimidazole, 5-((3-chlorophenyl)-1H-imidazol-1-ylmethyl)-, (+-)-, (E)-2-butenedioate (2:3)