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.

inotuzumab ozogamicin
A CD22-targeted cytotoxic immunoconjugate composed of a humanized IgG4 anti-CD22 antibody covalently linked to N-acetyl-gamma-calicheamicin dimethyl hydrazide (CalichDMH) with potential antineoplastic activity. Inotuzumab ozogamicin is rapidly internalized upon binding of the antibody moiety to B cell-specific CD22 receptors, delivering the conjugated CalichDMH intracellularly; the CalichDMH moiety binds to the minor groove of DNA in a sequence-specific manner, resulting in double-strand DNA breaks and apoptosis. CalichDMH is a derivative of gamma calicheamicin, a cytotoxic antibiotic produced by the bacterium Micromonospora echinospora. Check for active clinical trials using this agent. (NCI Thesaurus)
Code name:CMC-544