A Study to Evaluate the Efficacy and Safety of Pertuzumab + Trastuzumab + Docetaxel Versus Placebo + Trastuzumab + Docetaxel in Previously Untreated Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Metastatic Breast Cancer
Conditions
Interventions
- DRUG: Docetaxel
- DRUG: Pertuzumab
- DRUG: Placebo
- DRUG: Trastuzumab
Sponsor
Hoffmann-La Roche