Solange Peters, MD, PhD from the University of Lausanne, Lausanne, Switzerland discusses the latest data from the Phase II BIRCH trial, which investigated the outcomes of patients with non-small cell lung cancer (NSCLC). Patients involved in the trias received immunotherapy as a first-line treatment and the correlation between PD-L1 expression and patient response was investigated. This interview was recorded at the annual meeting of European Lung Cancer Conference (ELCC) 2017 in Geneva, Switzerland.