EGFR and non-small cell lung carcinoma: The Bevacizumab and ErLotinib in EGFR Mut positive NSCLC (BELIEF) trial (NCT01562028) is testing the combination of erlotinib plus bevacizumab in treatment-naive patients with EGFR mutations, whereas in a second study, patients with EGFR mutations are randomized to receive erlotinib vs. erlotinib plus bevacizumab (NCT01532089).