Human epidermal growth factor receptor 2 (HER2) is a human oncogene that is amplified in approximately 20% of breast cancers, and portends a worse prognosis if not treated with anti-HER2… Click to show full abstract
Human epidermal growth factor receptor 2 (HER2) is a human oncogene that is amplified in approximately 20% of breast cancers, and portends a worse prognosis if not treated with anti-HER2 agents. The advent of targeted anti-HER2 therapies has dramatically improved disease control and survival in patients with metastatic HER2-positive breast cancer, and is now considered standard of care in the first-line setting and beyond. This review summarizes the currently available data on targeted anti-HER2 therapies from completed randomized phase III clinical trials, and briefly discusses emerging advances that will address unmet needs in metastatic HER2-positive breast cancer.
               
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