Classification: Antineoplastic, antimetabolite
Metastatic breast cancer in those resistant to both paclitaxel and an anthracycline-containing chemotherapy regimen or resistant to paclitaxel and for whom further anthracycline therapy is not indicated (e.g., those who have received cumulative doses of 400 mg/m2 of doxorubicin or doxorubicin equivalents).