Put your money where your drink is: study tests deposit contracts to curb heavy drinking
NCT ID NCT05837611
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study aimed to see if asking people to put down a deposit (between $30 and $100) that they could earn back by meeting their drinking goals would help them drink less. Participants would wear a remote alcohol monitor to track their drinking. The study was withdrawn before anyone enrolled, so no results are available.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Deposit contract (behavioral) and transdermal alcohol monitoring
- What this could lead to
- If it had worked, this approach could have offered a low-cost, stigma-free way for people to reduce heavy drinking on their own schedule.
- What could go wrong
- The study was withdrawn before any participants were enrolled, so no results are available. The approach relies on personal motivation and may not work for everyone.
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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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Started
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Jun 2022
- Finished
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May 2025
- 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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21 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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: 1. at least 21 years of age, 2. report at least 1heavy drinking episode during the last 28 days; 3. want to reduce their alcohol use; 4. are willing to wear a transdermal alcohol monitor; 5. own a smart phone and 6. are willing and able to deposit $30, $60, or $100 of their choice. Exclusion Criteria: 1. substance use disorder (except alcohol, nicotine, and/or caffeine); 2. significant alcohol withdrawal symptoms (score ≥ 10 on the Clinical Institute Withdrawal Assessment for Alcohol) or currently in alcohol treatment; 3. medical condition that would contraindicate participation (e.g., pregnancy, scheduled surgery); 4. presence of a Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) psychiatric disorder with symptoms of psychosis and/or delirium; or 5. inability to comprehend informed consent or instructions.
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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.
Contacts and locations
Locations
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University Of North Texas
Denton, Texas, 76210, United States
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University of Texas Health Science Center at San Antonio
San Antonio, Texas, 78229, United States
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