The overall study is designed in two steps: 1) a one-week proof-of-concept study; and 2) a one-month pilot study.~Step 1: A one-week proof-of-concept study will be performed in a small population (n=5) of individuals in opioid use disorder recovery as an indicator of the app's suitability. Study participants will use the sham app for one week and will then complete a usability and user satisfaction survey. If the app is found to be exhibit acceptable usability and satisfaction, a one month study will be completed in a larger sample (see Step 2, below). If not, modifications to the app will be made and the one-week study will be repeated in a new group of participants.~Step 2: After completion of the proof-of-concept study, 20 new participants will be enrolled in a 4-week trial. Study participants will complete baseline assessments and then be asked to use the app at least three times per week, for four weeks. At the end of four weeks, participants will complete usability and user satisfaction surveys.
This study will evaluate the feasibility of an app that provides drug information to people in recovery from opioid use disorder. This study is designed to test the prototype app, not to determine health outcomes. The study will confirm the design and operating specifications prior to being evaluated in a larger clinical trial.