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 cholesterol carbonate derivative of 4-demethylpenclomedine (DM-PEN) with potential antineoplastic alkylating activity. Upon intravenous administration of 4-demethylcholesteryloxycarbonylpenclomedine, the carbonium moiety binds to and alkylates DNA at the N7 guanine position, thereby causing DNA crosslinks. This prevents DNA replication, inhibits cellular proliferation and triggers apoptosis. In addition, due to its lipophilic cholesteryl moiety this agent is able to cross the blood brain barrier (BBB) and therefore can be given intravenously compared to other alkylating agents that need to be given intra-cranially. Check for active clinical trials using this agent. (NCI Thesaurus)

Chemical structure:
  • 4-demethyl-4-cholestryloxycarbonylpenclomedine
  • 4-demethylcholesteryloxycarbonylpenclomedine