Approved Agents for Metastatic Breast Cancer

The US Food and Drug Administration has approved three agents for treatment of patients with metastatic breast cancer refractory to anthracyclines and taxanes: capecitabine, ixabepilone, and eribulin mesylate. There is no fixed algorithm of therapeutic choices. Median survival remains measured in months, not years. Individual patient performance status, toxicity (to past regimens and any residual toxicity), preferences, and quality of life are factors in determining optimal treatment options for metastatic breast cancer. Ongoing research is seeking to improve outcomes in this patient population.