In the present intervention the investigators bring navigation together with activation as a longitudinal intervention by assigning a patient coach to vulnerable lung cancer patients while undergoing treatment. The patient coach function will address patient barrier factors, provider factors and organizational factors through providing social support, practical assistance and linking with health personnel, which are the three main principles guiding the coach intervention. The intervention will target specific phases in the treatment trajectory, which include challenges to compliance: into treatment, maintaining treatment and finalizing treatment. The investigators will use patient coaches who are volunteers with health education to provide a support function that is affiliated to the patient. The investigators believe that assistance with navigating the system, communication with health staff and social support across care transitions will help patients to obtain best possible care Primary aim: optimal treatment depending on stage, histology and performance status Secondary aims: quality of life and symptoms, participation in self-management plans as smoking cessation, physical activity, dietary changes, and short-term survival.