Celltrion announced last week that it has submitted an application for approval of Herzuma, its proposed trastuzumab biosimilar (CT-P6), in Japan. Trastuzumab is a monoclonal antibody indicated for the treatment of patients with metastactic breast cancer whose tumors overexpress the HER2 protein and who have received one or more chemotherapy regimens. Celltrion’s Herzuma (trastuzumab) is



