Just-in-time Adaptive Intervention Messaging in a Digital Weight Loss Intervention for Young Adults
Public ClinicalTrials.gov record NCT05625061. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Micro-randomized Trial of JITAI Messaging to Improve Adherence to Multiple Weight Loss Behaviors in Young Adults
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this micro-randomized trial is to evaluate the effects of 7 types of intervention messages targeting specific behavior change techniques (i.e., BCT messages) delivered in "just-in-time" (JIT) moments on daily achievement of weight-related behavioral goals among n=201 young adults with overweight and obesity, participating in a digital, mobile comprehensive lifestyle intervention. "Just-in-time adaptive interventions" (JITAIs) are an alternative to the "one size fits all" approach of mobile intervention development that can provide tailored, real-time messaging and support for young adults.
Study identification
- NCT ID
- NCT05625061
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 255 participants
Conditions and interventions
Conditions
Interventions
- Core Behavioral Weight Loss (BWL) Intervention Behavioral
- Behavior Change Technique 1 Message (Action Planning) Behavioral
- Behavior Change Technique 2 Message (Discrepancy between Current Behavior and Goal) Behavioral
- Behavior Change Technique 3 Message (Feedback on Outcome of Behavior) Behavioral
- Behavior Change Technique 4 Message (Social Support) Behavioral
- Behavior Change Technique 5 Message (Social Comparison) Behavioral
- Behavior Change Technique 6 Message (Social Reward) Behavioral
- Behavior Change Technique 7 Message (Focus on Past Success) Behavioral
Behavioral
Eligibility (public fields only)
- Age range
- 18 Years to 39 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 24, 2023
- Primary completion
- Jan 4, 2025
- Completion
- Jan 26, 2025
- Last update posted
- Feb 16, 2026
2023 – 2025
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of North Carolina at Chapel Hill | Chapel Hill | North Carolina | 27514 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT05625061, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 16, 2026 · Synced Sep 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05625061 live on ClinicalTrials.gov.