The purpose of this study is to determine the efficacy and safety of an oral dual tyrosine kinase inhibitor (GW572016) in combination with paclitaxel compared to paclitaxel alone in first line advanced or metastatic breast cancer.
Active Comparator
Oral GW572016 Lapatinib
Buenos Aires, Buenos Aires, Argentina
Capital Federal, Buenos Aires, Argentina
Capital Federal, Buenos Aires, Argentina