Asthma Ctrl SMART Trial

Our goal is to evaluate our promising mHealth intervention (Asthma Ctrl) that is easily accessible and tailored based on adherence barriers and to examine predictors of treatment response. In this multi-site R01 with Children's Hospital Colorado, the study investigators will conduct a 2-stage sequential, multiple assignment, randomized trial (SMART) to evaluate the effectiveness of our mHealth intervention strategies for improving adherence to daily inhaled corticosteroids in adolescents with asthma. Following a baseline period, adolescents will be randomized to a mHealth asthma management app (control group) or Asthma Ctrl, a text-messaging intervention providing adherence feedback based on adherence monitoring (treatment) for SMART Stage 1. Participants will be excluded from the study if they have an adherence that is \>68%. For SMART Stage 2, adolescents randomized to the treatment group who demonstrate non-adherence (≤68% adherence; non-response) will undergo a second randomization to receive either 1) continued Asthma Ctrl (text messaging) or 2) Asthma Ctrl+ (Asthma Ctrl augmented with a problem-solving intervention delivered via telehealth). Thus, there are three intervention strategies that will be tested in this SMART: #1 control condition, #2 treatment, and #3 adapted treatment after Stage 2 and at follow-up (1 and 6 months). This innovative SMART design will address objectives described in the brief summary.