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.

arsenic trioxide
Patient Information
A small-molecule arsenic compound with antineoplastic activity. The mechanism of action of arsenic trioxide is not completely understood. This agent causes damage to or degradation of the promyelocytic leukemia protein/retinoic acid receptor-alpha (PML/RARa) fusion protein; induces apoptosis in acute promyelocytic leukemia (APL) cells and in many other tumor cell types; promotes cell differentiation and suppresses cell proliferation in many different tumor cell types; and is pro-angiogenic. Check for active clinical trials using this agent. (NCI Thesaurus)

Synonym:Arsenic (III) Oxide
Arsenic Sesquioxide
Arsenous Acid
Arsenous Acid Anhydride
Arsenous Oxide
White Arsenic
US brand name:Trisenox