Intern Health Study 2025

Part of paid clinical trials in Ann Arbor, Michigan.

Sponsor
University of Michigan
Study ID
NCT07052357
Status
Enrolling By Invitation

Conditions

  • Depression - Major Depressive Disorder
  • Mood
  • Physical Activity
  • Sleep

Eligibility Criteria

Sex
ALL
Age
18 Years - N/A
Healthy Volunteers
Accepted

Interventions

  • Intern Health Study behavioral change mobile notification — BEHAVIORAL
    The study's mobile app will be used to deliver push notifications. The notifications appear on the participant's phone lock screen. The notifications include 3 categories: mood notifications, activity notifications, sleep notifications. Mood notifications aim to increase the participant's mood. Activity notifications aim to increase the participant's physical activity. Sleep notifications aim to increase the participant's sleep duration. All notifications are categorized as one of five therapeutic approaches: 1) CBT-Behavioral, 2) CBT-Cognitive, 3) Distanced Self-Talk, 4) Mindfulness, 5) Motivational Interviewing.

Study Details

The aim of this study is to evaluate the efficacy of using a reinforcement learning algorithm to determine the optimal content of a mobile health intervention (message delivered via smartphone) for improving the mood, physical activity, and sleep of medical interns.

Key Dates

Start date
Apr 3, 2025
Status verified
Jun 2025
Primary completion
Jun 30, 2026
Completion
Jun 30, 2026

Study Design

Enrollment
1,000 participants (estimated)
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION

Arms

  • Experimental: Within-participant micro-randomization
    Each week a policy outcome is chosen at random with ⅓ mood, ⅓ activity, ⅓ sleep - this determines which category of message a participant will receive. Each day in the study, a reinforcement learning algorithm will determine 1) if a participant will receive a notification that day or no notification that day, 2) the therapeutic strategy employed by the notification (Behavioral Strategy, Cognitive Strategy, Mindfulness, Motivational Interviewing, Distanced Self-Talk), and 3) if personalized data feedback will be included. If assigned to receive a notification, 1 core message set that meets the above criteria will be randomly selected from a pool of 358 core message sets. Each core message set will be comprised of 4 messages containing comparable content, however they will be tailored based on the participant's wearable (steps, sleep) or mood data for the specified time interval (7 days, 30 days, since the start of internship) as follows: 1) no data, 2) low, 3) moderate, or 4) high.

Primary Outcome Measure

Average daily mood [ Time Frame: Daily, through study completion at the end of intern year (1 year) ]

Locations (1)

FacilityCityStateZIPSite coordinators
University of MichiganAnn ArborMichigan48375-

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