The AIR2 Trial, a pivotal Phase III study sponsored by Asthmatx, investigates the safety and effectiveness of Bronchial Thermoplasty™, the first non-drug treatment for asthma, using the Alair® System. 300 patients at 35 global sites use the LogPad to record and transmit daily symptomatic data on their experiences following treatment. Two principal investigators took to time to tell PHT about the benefits and challenges of using ePRO in a trial.