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.

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anti-HER3 monoclonal antibody LJM716
A human monoclonal antibody directed against the human epidermal growth factor receptor HER3 (ErbB3) with potential antineoplastic activity. Anti-HER3 monoclonal antibody LJM716 possesses a novel mechanism of action; LJM716 binds to and locks HER3 in the inactive conformation and does not interfere with its interaction with neuregulin (NRG). The inactivated form of HER3 blocks the PI3K/Akt signaling pathway, thereby inhibiting cellular proliferation in HER2 or NRG expressing tumor cells. HER3, a member of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases, is frequently overexpressed in tumors; it has no active kinase domain but is activated through heterodimerization with other members of the EGFR receptor family, such as HER2. Check for active clinical trials using this agent. (NCI Thesaurus)

Code name:LJM716