Placebo MDI and empty TBH devices (only for training purposes) clinical trials

A Randomized, Double-Blind, Parallel Group, Multicenter 24 Week Study to Assess the Efficacy and Safety of Budesonide and Formoterol Fumarate Metered Dose Inhaler Relative to Budesonide Metered Dose Inhaler and Open-Label Symbicort® Turbuhaler® in Participants with Inadequately Controlled Asthma (VATHOS)

This study looks at new ways to treat asthma that isn't well controlled. It compares different inhaler medicines to see which ones work best and are safest for adults. The goal is to help people with asthma breathe easier.