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.

lead Pb 212 TCMC-trastuzumab
A radioimmunoconjugate containing the recombinant humanized monoclonal antibody trastuzumab conjugated with the bifunctional chelating agent TCMC ((1,4,7,10-Tetra-(2-Carbamoyl Methyl)-Cyclododecane), and radiolabeled with the alpha-emitting isotope lead Pb 212, with potential anti-tumor activity. Upon administration, the antibody moiety of lead Pb 212 TCMC-trastuzumab binds with high affinity to the extracellular domain of human epidermal growth factor receptor 2 (HER2); after internalization, the radioisotope moiety delivers a cytotoxic dose of alpha radiation to the HER2-expressing tumor cells. HER2, a tyrosine kinase receptor, is overexpressed on the cell surface of a variety of cancer cell types. Check for active clinical trials using this agent. (NCI Thesaurus)
Synonyms:[212]Pb TCMC-Herceptin
[212]Pb TCMC-trastuzumab
lead Pb 212 TCMC-Herceptin