Encorafenib plus binimetinib in patients with BRAFV600-mutant non-small cell lung cancer: Phase II PHAROS study design

BRAFV600 oncogenic driver mutations occur in 1-2% of non-small cell lung cancers (NSCLCs) and have been shown to be a clinically relevant target. Preclinical/clinical evidence support the efficacy and safety of BRAF and MEK inhibitor combinations in patients with NSCLC with these mutations. We describe the design of PHAROS, an ongoing, open-label, single-arm, Phase II trial evaluating the BRAF inhibitor encorafenib plus the MEK inhibitor binimetinib in patients with metastatic BRAFV600-mutant NSCLC, as first- or second-line treatment. The primary endpoint is objective response rate, based on independent radiologic review (per RECIST v1.1); secondary objectives evaluated additional efficacy endpoints and safety. Results from PHAROS will describe the antitumor activity/safety of encorafenib plus binimetinib in patients with metastatic BRAFV600-mutant NSCLC.

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