Sorafenib (Nexavar, BAY43-9006) + mFOLFOX6 (5-FU, levo-leucovorin, oxaliplatin)
DrugSubjects will receive oral Sorafenib 400 mg twice daily (BID) continuously and intravenous (IV) mFOLFOX6 (5-FU 400 mg/m^2 bolus and 2400 mg/m^2 for 46-48 hrs; levo-leucovorin 200 mg/m^2; 85 mg/m^2 oxaliplatin) every 14 days until progressive disease (PD)