Warning labels on booze: will they curb drinking?
NCT ID NCT06835920
First seen Jun 24, 2026 · Last updated Jul 14, 2026 · Updated 3 times
Summary
This study tests whether putting health warnings on alcohol containers can reduce drinking. 720 adults who drink at least once a week will bring their own alcohol to study visits, where labels warning about cancer, high blood pressure, and liver scarring will be added to some bottles. Researchers will track how much participants drink and their intentions to cut back.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Front-of-package health warning labels
- What this could lead to
- If it works, this could point toward a simple, low-cost way to help people drink less by reminding them of health risks.
- What could go wrong
- This is a small, short-term behavioral study, not a medical treatment. People may ignore the warnings or change their behavior only temporarily.
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
-
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.
- Participants
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724 people
The number who actually took part.
- Started
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Apr 2025
- Finished
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May 2026
- 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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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: * Adults ages 21 years and older * Not identified as having possible alcohol dependence * Consumed alcohol at least once per week during the past 4 weeks * At least half of alcohol consumed each week is from store-bought containers * Willing to bring 8 days' worth of alcohol to 3 in-person study visits * Not pregnant, breastfeeding, or trying to get pregnant * Able to take surveys in English * Willing to respond to text messages daily for 3 weeks * Not living in the same household as anyone else in the study Exclusion Criteria: \- Not living in US
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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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UNC study office
Chapel Hill, North Carolina, 27599, United States
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University of North Carolina
Chapel Hill, North Carolina, 27599, United States
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