A Study of Gemcitabine and Carboplatin (Plus Herceptin in Human Epidermal Growth Factor Receptor 2 Positive [HER2+] Patients) With Metastatic Breast Cancer

Day 1 of 14 day cycle (Cycles 1-9):1500 milligram per square meter (mg/m2) intravenous (IV) (30 minute infusion)

Day 1 of 14 day cycle (Cycles 1-9): Carboplatin area under the curve (AUC)=2.5 intravenous (IV) (30-60 minute infusion).

"Day 1 of 14 day cycle (Cycle 1): 8 milligrams per kilogram (mg/kg) intravenous (IV) (90 minute infusion).~Day 1 of 14 day cycle (Cycles 2-9): 4 mg/kg IV (30 minute infusion). Day 1 of 21 day cycle (Cycles 10+): 6 mg/kg IV (30 minute infusion)."