BELLABevacizumab Plus EGFR Tyrosine Kinase Inhibitors in Chinese Patients With Stage IIIB-IV EGFR-mutant Non-small Cell Lung Cancer: a Prospective,Multicenter, Non-interventional,Real-world Study

Study start date: October 7, 2020

Inclusion Criteria: * Patients must meet the following criteria for study entry: 1. Signed Informed Consent Form. 2. Age≥18 years. 3. Histologically or cytologically documented inoperable, locally advanced (Stage IIIB, IIIC), metastatic (Stage IV) or recurrent non-squamous NSCLC. 4. An exon 19 deletion mutation or exon 21 L858R mutation in EGFR has been found clinically, with or without EGFR T790M mutation 5. Eastern Cooperative Oncology Group performance status 0-2 or KPS ≥60 6. Previous EGFR-TKIs or anti-angiogenic agents or systemic cytotoxic chemotherapy for locally advanced, metastatic or recurrent disease has not been performed. Exclusion Criteria: * Patients who meet any of the following criteria will be excluded from study entry: 1. Squamous carcinoma or mixed non-small cell lung cancer with squamous component. 2. Potential hazard for receiving EGFR-TKIs or bevacizumab by clinical evaluations 3. Previous history of receiving EGFR-TKIs or bevacizumab treatment prior to study enrollment 4. Suspected or diagnosed leptomeningeal metastases 5. Chest radiotherapy within 3 months prior to study enrollment 6. Open surgery within 4 weeks prior to study enrollment