Phase II Multinational Study Comparing the Effectiveness and Safety of CHF5993 Inhalers Using Climate-Friendly HFA-152a Versus HFA-134a Propellants in Adults with Mild to Moderate Asthma

What this Trial Is About

This research aims to compare two asthma inhalers that use different propellants in people with mild to moderate asthma. The study evaluates whether an investigational inhaler with a new climate-friendly propellant, HFA-152a, works as safely and effectively as inhalers using the existing HFA-134a propellant. This global Phase II study plans to enroll 468 patients in Europe, Latin America, Ukraine, South Africa, and the United Kingdom. Participants will use one of three inhaler treatments in a randomized, double-blind crossover design the investigational CHF5993 pMDI with HFA-152a, CHF5993 pMDI with HFA-134a, or CHF718 pMDI with HFA-134a. Each inhaler is taken as two puffs twice daily. The study compares lung function effects of these inhalers during treatment periods. During the trial, participants will be assessed for lung function through measurements like forced expiratory volume in 1 second FEV1 at baseline and after treatment. Researchers will monitor safety, treatment adherence, and asthma control over the study period. Participants undergo scheduled visits for these evaluations, with the study expected to complete in June 2027.

Therapeutic Equivalence of CHF5993 pMDI 100/6/12.5 µg HFA-152a in Subjects With Mild to Moderate Asthma