Efficacy and Safety of BRAF Inhibitors With or Without MEK Inhibitors in BRAF-Mutant Advanced Non-Small-Cell Lung Cancer: Findings From a Real-Life Cohort.

Background: Real-life comparative data on BRAF inhibitors (BRAFi) and BRAFi + MEK inhibitors (MEKi) combination in BRAF-mutant (BRAFm) non-small-cell lung cancer (NSCLC) is lacking.

Patients And Methods: Consecutive BRAFm advanced NSCLC patients (n = 58) treated in 9 Israeli centers in 2009-2018 were identified. These were divided according to mutation subtype and treatment into groups A1 (V600E, BRAFi; n = 5), A2 (V600E, BRAFi + MEKi; n = 15), A3 (V600E, no BRAFi; n = 7), B1 (non-V600E, BRAFi ± MEKi; n = 7), and B2 (non-V600E, no BRAFi; n = 23); one patient received both BRAFi and BRAFi + MEKi.