<qa>  What is the name of the therapy that is currently performed in the hospital?Application of long-term non-invasive ventilation NIV in stable chronic obstructive pulmonary disease COPD patients with chronic hypercapnic respiratory failure CHRF has recently been shown to improve survival and quality of life when applied with sufficiently high inspiratory pressures and adequate backup breathing frequencies so called high-intensity NIV. However, for a broader implementation of this therapy in a potentially large group of patients, important issues have to be solved. First, the initiation of high-intensity NIV, currently performed in the hospital, is often time-consuming, expensive and inconvenient for patients. Secondly, although clinicians recognise that not all patients benefit, it is not known which factors predict a positive response. 