Study Comparing Lapatinib (GW572016) And Letrozole Versus Letrozole In Subjects With Advanced Or Metastatic Breast Cancer
Status: COMPLETED
Study type: INTERVENTIONAL
Conditions: Breast Neoplasms
Interventions: DRUG: Lapatinib|DRUG: Letrozole|DRUG: Placebo
Sponsor: Novartis Pharmaceuticals