Herceptin is an example of a monoclonal antibody-based drug for
Trastuzumab (INN; trade names Herclon, Herceptin) is a monoclonal antibody that interferes with the HER2/neu receptor.ne of the challenges in the treatment of breast cancer patients by herceptin is our understanding towards herceptin resistance. In the last decade, several assays have been performed to understand the mechanism of Herceptin resistance with/without supplementary drugs.