A type of monoclonal antibody used in cancer detection or therapy. Monoclonal antibodies are laboratory-produced substances that can locate and bind to cancer cells. Trastuzumab blocks the effects of the growth factor protein HER2, which transmits growth signals to breast cancer cells.


... Trastuzumab (Herceptin®) is a monoclonal antibody. A monoclonal antibody is a protein that reacts with a specific site on a cell. Trastuzumab targets a protein called HER2. This protein is found on the surface of some types of cancer cells including prostate, colon, and ovarian cancers and 25—30% of breast cancer cells. Trastuzumab works by interfering with how these tumor cells grow and causes these cells to die. Generic trastuzumab injections are not available. ...
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Trastuzumab Systematic (IUPAC) name Humanized anti-HER2 antibody ...
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What You Need to Know About Treatment With Herceptin
... Generic name: Trastuzumab Why is this drug prescribed? A protein called Her-2/neu is found on the surface of cells in certain types of breast cancers. This protein acts as a receptor on the outer wall...
Source: Cleveland Clinic