A cohort study of patients with advanced, unresectable (stage IIIB) metastatic (stage IV) non-squamous non-small cell lung cancer (NSCLC) or in relapse starting treatment with Avastin® in combination with chemotherapy as first line treatment of metastatic

This observational study will evaluate modality, efficacy and safety of Avastin (bevacizumab) as first-line treatment in combination with chemotherapy in patients with inoperable advanced, metastatic or recurrent non-squamous non-small cell lung cancer in clinical practice 1. To describe characteristics of patients treated with Avastin®: demographic and clinical characteristics, history of the disease, and previous disorders and conditions, 2. To describe methods of use of Avastin® in follow-up: doses and durations of treatment with Avastin® (number of cycles); chemotherapy treatments used in combination with treatment with Avastin®; discontinuation of treatment with Avastin® (temporary and permanent) and reasons; treatment strategies set up after discontinuation of treatment with Avastin®, 3. To describe overall survival of patients treated with Avastin®, 4. To describe the safety profile of treatment with Avastin®: serious and non-serious adverse events and targeted adverse events, 5. To describe quality of life: Spitzer's quality of life questionnaire, 6. To describe therapeutic management of patients with non-squamous cell NSCLC in first-line chemotherapy of metastatic disease not receiving Avastin®: compilation of an anonymous registry over a 3-month period starting with time of scientific set up by the investigator.