Alastair Greystoke, MBChB, MSc, PhD, MRCP, Northern Institute for Cancer Research, Newcastle University, Newcastle, UK, talks on inequalities in access to biomarker testing and targeted treatments. Patients with lung cancer who were from a poorer socioeconomic background were found to have worse access to biomarker testing. This interview took place during the 19th British Thoracic Oncology Group (BTOG) Annual Conference 2021.