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.

CYP17 lyase inhibitor ASN001
An orally available non-steroidal, lyase-selective inhibitor of the steroid 17-alpha-hydroxylase/C17,20 lyase (CYP17A1 or CYP17), with potential anti-androgenic and antineoplastic activities. Upon oral administration, CYP17 lyase inhibitor ASN001 selectively binds to and inhibits the lyase activity of CYP17A1 in both the testes and adrenal glands, resulting in a significant reduction in androgen production to castrate-range levels. This may both decrease androgen-dependent growth signaling and inhibit the proliferation of androgen-dependent tumor cells. The cytochrome P450 enzyme CYP17A1, which is localized to the endoplasmic reticulum, exhibits both 17alpha-hydroxylase and 17,20-lyase activities; it plays a key role in the steroidogenic pathway. The selective inhibition of CYP17A1 lyase activity by ASN001 prevents the increased synthesis of mineralocorticoids that is normally seen with non-selective CYP17 inhibitors, which also inhibit the 17-alpha-hydroxylase activity of CYP17A1. Check for active clinical trials using this agent. (NCI Thesaurus)

Code name:ASN001