Flow diagram for screening, enrolment, randomisation, data collection and analysis. Flow diagram for screening, enrolment, randomisation, data collection and analysis. EQ-5D, EuroQoL 5 Dimensions; FACT-L, Functional Assessment of Cancer Therapy-Lung; HADS, Hospital Anxiety and Depression Scale; ITT, intention to treat; LuCApp, Lung Cancer App; SCNS-SF34, Supportive Care Needs Survey Short Form; ZBI, Zarit Burden Interview. Oriana Ciani et al. BMJ Open 2019;9:e025483 ©2019 by British Medical Journal Publishing Group