Can a smartphone app curb heavy drinking among homeless adults?
NCT ID NCT06821295
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests a smartphone app called Smart-T Alcohol that sends personalized messages to help homeless adults reduce their drinking. About 600 people from shelters in Dallas and Oklahoma City will either get the app plus usual care, or usual care alone. The goal is to see if the app lowers the number of drinks per week and heavy drinking days over 8 weeks.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Smartphone app with tailored messages and on-demand content
- What this could lead to
- If it works, this could provide an effective, scalable tool to help homeless adults cut down on drinking and related harms.
- What could go wrong
- This is a mid-stage trial, and the app may not work for everyone. Adherence can be low, and results may not apply to all homeless populations.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2/3
Runs two stages together: whether the treatment works, then large-scale confirmation.
- Participants
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About 600 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2025
- Expected to finish
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Apr 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * At least 18 years old * 8 or above on the AUDIT * Receiving shelter-based services * Consuming 1 or more standard drink of alcohol in the past week * Score of 4 or higher on the REALM-SF * Score under 8 on the 6CIT Exclusion Criteria: * Under 18 years old * Not meeting other inclusion criteria
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Oklahoma Health Sciences Center
RECRUITINGOklahoma City, Oklahoma, 73104, United States
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