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NCT03746808 · ClinicalTrials.gov registry record · NA
Development and Testing of a Just-in-Time Adaptive Smart Phone Intervention to Reduce Drinking Among Homeless Adults
A NA study, sponsored by University of North Texas Health Science Center.
- Completed
- Registry status
- NA
- Development phase
- 119
- Enrollment target
NCT03746808: Completed NA study, sponsored by University of North Texas Health Science Center.
NCT03746808 is a NA study that has completed, run by University of North Texas Health Science Center. The registered enrollment target is 119 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (92% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03746808, a NA study, has completed, sponsored by University of North Texas Health Science Center.
- COMPLETED
- Registry status
- NA
- Development phase
- 119 participants
- Enrollment target
Study Summary
Homeless adults are 8 times as likely to be alcohol dependent compared with adults in the general population, yet few studies have examined the precipitants of alcohol use in this vulnerable population. Ecological momentary assessments (EMAs) that involve repeated assessment of thoughts/mood/behaviors (e.g., via smart phone) is currently the most accurate way to assess individuals in real-time in their natural environments. Advances in smartphone technology also allow for the collection of continuous geolocation and other passive sensing data. Thus, researchers can now link environmental risks and protective factors to outcomes, without reliance on subjective reporting alone. Building on prior work, this study will use a three-phase study to develop and test a "just in time" adaptive intervention to reduce alcohol use in homeless men and women. Phase I will use smartphones and passive sensing technologies to monitor geolocation, psychosocial variables (e.g., stress, affect, urge to drink), and alcohol use in a group of 80 homeless adults with an AUD who are receiving shelter-based treatment. Phase I will identify environmental (i.e., geolocation), cognitive, and behavioral antecedents of alcohol use over 4 weeks. Phase II will use this information to create a risk algorithm and tailored treatment messages that anticipate and intervene to prevent drinking. The resulting app will assess imminent risk of alcohol use after each EMA and will deliver relevant treatment messages that match a person's current risk factors. Phase III will test the feasibility, acceptability and preliminary efficacy of the app in a sample of 40 homeless adults with an AUD who receive the EMA plus treatment messages over 4 weeks. Drinking will be determined via self-report, supplemented by a transdermal alcohol sensor (i.e., SCRAM) worn by participants. This project will be the first to combine geolocation and psychosocial variables to identify real-time antecedents of drinking. If effective,
Primary Outcome
Satisfaction with app on self-reported questions at follow-up (1-5 scale where 1 = Not at all; and 5 = Extremely)
Interventions
- BEHAVIORAL EMA + App/Treatment Messages
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 119 participants |
| Start Date | 2019-02-14 |
| Est. Completion | 2022-05-31 |
| Phase | NA |
What the finished NCT03746808 record still lists
NCT03746808 is an interventional study that assigns participants to a tested intervention. The registered 119 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (92% lower).
The record links to 0 conditions, and to 1 intervention - of which EMA + App/Treatment Messages is the first listed.
NCT03746808 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03746808 about?
NCT03746808 is a clinical study titled "Development and Testing of a Just-in-Time Adaptive Smart Phone Intervention to Reduce Drinking Among Homeless Adults". Homeless adults are 8 times as likely to be alcohol dependent compared with adults in the general population, yet few studies have examined the precipitants of alcohol use in this vulnerable population. Ecological momentary assessments (EMAs) that involve repeated assessment of thoughts/mood/behavio...
What is the current status of trial NCT03746808?
This trial is currently completed. It is a NA study. The enrollment target is 119 participants. The study started on 2019-02-14. Estimated completion is 2022-05-31.
What interventions are being tested in trial NCT03746808?
The interventions under investigation include: EMA + App/Treatment Messages (BEHAVIORAL).
Who is sponsoring clinical trial NCT03746808?
This trial is sponsored by University of North Texas Health Science Center, which has 21 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03746808's enrollment target sits among peer trials
119 803rd of 2000 higher than 1,198 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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