An Observational Study of Avastin (Bevacizumab) in First Line in Patients With Metastatic Colorectal Cancer (AVANiS)

This observational study will evaluate the use in clinical practice and the efficacy of Avastin (bevacizumab) in patients with metastatic colorectal cancer who have not received prior chemotherapy treatment in the metastatic setting. Patients for whom the treating physician has decided to initiate therapy with Avastin will be followed for 10 months.