Daiichi Sankyo Co. Ltd.’s HER2-directed antibody drug conjugate (ADC) Enhertu (trastuzumab deruxtecan) has been approved in Japan, for the treatment of patients with HER2-positive unresectable or recurrent metastatic breast cancer after prior chemotherapy.
The second-line use is limited to patients who are refractory or intolerant to standard treatments for the disease.







