This clinical trial is focused on studying the effects of a treatment for Chronic Obstructive Pulmonary Disease (COPD), a condition that makes it hard to breathe. The treatment being tested is called Trixeo Aerosphere, which is a combination of three active substances: Budesonide, Glycopyrronium Bromide, and Formoterol Fumarate Dihydrate. These substances are delivered through a special inhaler. The study will compare two versions of this inhaler: one using a traditional propellant called HFA (hydrofluoroalkane) and another using a new propellant called HFO (hydrofluoroolefin). A placebo inhaler, which does not contain active medication, will also be used for comparison.
The purpose of the study is to see if the new HFO version of the inhaler works as well as the traditional HFA version in improving lung function in people with COPD. Participants in the study will use each type of inhaler for a period of time, and their lung function will be measured to assess the effectiveness of the treatments. The study will last for about four weeks, and participants will switch between the different inhalers during this time.
Throughout the study, participants will be monitored for any changes in their health, including vital signs like blood pressure and heart rate. The study aims to ensure that the new HFO inhaler is just as safe and effective as the current HFA inhaler for people with COPD. This research is important for potentially improving treatment options for those living with this chronic lung condition.



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