Sorafenib is an oral-multi-kinase inhibitor with effects on tumor proliferation and tumor angiogenesis. Sorafenib has demonstrated activity in preclinical models of NSCLC both in combination with chemotherapy and as monotherapy. A recent intra-patient dose escalation trial of sorafenib in renal cell carcinoma showed positive response rates and tolerability up to 1200mg in 91% of patients.