Triple Therapy Convenience by the Use of One or Multiple Inhalers and Digital Support in Chronic Obstructive Pulmonary Disease

This study is testing whether using a single inhaler device (containing three medications) for COPD is more convenient and leads to better adherence than using multiple inhalers, and whether adding a digital app helps further. COPD (chronic obstructive pulmonary disease) is a lung condition that causes breathing difficulties. The triple therapy used in this study combines an inhaled corticosteroid, a long-acting beta-agonist, and a long-acting muscarinic antagonist. **You may be eligible if...** - You have had a diagnosis of COPD for at least 1 year - You are 40 or older - Your doctor has recommended triple therapy for your COPD - You are a current or ex-smoker - You own a smartphone (Android or iOS) with internet access - You are willing to give written consent **You may NOT be eligible if...** - You are unable to follow the study procedures - You cannot read or use the app in Dutch - Asthma is your main lung diagnosis - You used a digital health app for COPD in the past 6 months Talk to your doctor to see if this trial is right for you.