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 6-week interventional assessment period consisting of addition of LABA, for an estimated participant duration of 8 weeks.
The goal of this interventional study is to compare at-home mobile spirometry to in-clinic spirometry in participants with moderate asthma while taking a long-acting beta agonist (LABA).~The main questions it aims to answer are:~Do at-home mobile spirometry and in-clinic spirometry assessments show a similar treatment effect (measured changes in FEV1) with the addition of LABA?~Is at-home mobile spirometry as accurate as in-clinic spirometry in showing treatment effects (changes in FEV1)?~Participants will be asked to:~Take standard of care LABA treatment once a day~Complete at-home mobile spirometry testing twice a day~Complete asthma questionnaires twice a day~Complete device use questionnaires~Wear a wrist device (like a watch) to track physical activity and vital signs~Visit the clinic for in-clinic spirometry testing once a week for 8 weeks