A substance being studied in the treatment of many types of cancer. Anti-IGF1R recombinant monoclonal antibody MK-0646 binds to a protein called insulin-like growth factor receptor (IGFR) on the surface of cells. This may prevent the cells from growing when IGF is present. It may also kill cancer cells. Anti-IGF1R recombinant monoclonal antibody MK-0646 is a type of monoclonal antibody. Also called MK-0646.
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