Study Comparing At-Home Mobile Spirometry to In-Clinic in Moderate Asthma Participants Taking Long-Acting Beta Agonist

The study will recruit up to 60 participants with moderate uncontrolled asthma who are taking inhaled corticosteroids (ICS) at the time of study enrollment but will require LABA treatment as judged by their treating physician. The study will assess the LABA treatment effect in clinic and mobile spirometry, assess the relationship between different readouts of mobile spirometry in addition to assessing asthma control as measured by ACQ-6, patient reported outcome questionnaire. Additional objectives include an evaluation of patient and site-specific satisfaction with mobile spirometry technology. The study consists of a one-week screening period, one-week baseline period, and up to 6-week interventional assessment period consisting of addition of LABA, for an estimated participant duration of 8 weeks.