Kadcyla (Ado-Trastuzumab Emtansine): First Antibody-Drug Conjugate Approved for the Treatment of HER2-Positive Metastatic Breast Cancer
Approximately 25% of women who are diagnosed with breast cancer have HER2-positive tumors. The HER2 gene, which resides on chromosome 17, directs tumor cells to manufacture HER2 protein. This protein is a cell-surface receptor that compels the tumor cell to grow and to divide more frequently than normal, making HER2-positive breast cancer an aggressive phenotype.
Before the advent of HER2-directed therapies, patients diagnosed with HER2-positive disease had significantly shorter disease-free survival compared with patients with other breast cancer subtypes.1[ Read More ]