Cetuximab and Cisplatin in the Treatment of "Triple Negative" (Estrogen Receptor [ER] Negative, Progesterone Receptor [PgR] Negative, and Human Epidermal Growth Factor Receptor 2 [HER2] Negative) Metastatic Breast Cancer

Randomized Phase II Trial With Cetuximab and Cisplatin in the Treatment of ER-negative, PgR-negative, HER2-negative Metastatic Breast Carcinoma ("Basal Like")

The primary objective of this study is to determine whether overall response to cetuximab combined with cisplatin is better than overall response to cisplatin alone together with showing that the overall response for cetuximab and cisplatin was above a pre-specified threshold of 0.2 in the treatment of "triple negative" metastatic breast cancer.

The secondary objective of this study is to compare the differences between the two treatment groups using the following criteria : Progression-Free Survival (PFS) Time, Overall Survival (OS), Time to Response (TTR) and Safety.

Inclusion Criteria:

• Histologically confirmed diagnosis of metastatic breast cancer (Stage IV)
• Estrogen Receptor [ER] negative, PgR negative and HER2 less than 3+ expression by immunohistochemistry (IHC)
• No more than 1 prior chemotherapy received for treating this metastatic breast cancer
• No more than 1 prior anthracycline and/or taxane regimen (either adjuvant or metastatic setting)
• Other protocol-defined inclusion criteria may apply

Exclusion Criteria:

• Prior platinum agent
• Prior mitomycin
• Known history of brain metastases
• Other protocol-defined exclusion criteria may apply