N/A
Completed N=1,123
Impacts of Alcohol Warning Labels: An Online Experiment
Alcohol Drinking
Source: ClinicalTrials.gov NCT06442800 ↗
Enrolled (actual)
1,123
Serious AEs
—
Results posted
Aug 2025
Primary outcomePrimary: Perceived Message Effectiveness — 2.66; 2.54; 2.52; 2.50 score on a scale — p=<0.001
Summary
The goal of this experiment is to examine responses to alcohol warning messages about 10 different topics among US adult alcohol consumers. The main questions this experiment aims to answer are:
Which warning topics make alcohol consumers in the US want to drink less alcohol? Which warning topics remind alcohol consumers in the US of alcohol's harms? Which warning topics help alcohol consumers in the US learn something new? There will be a total of 20 alcohol messages, 2 messages for each of the 10 topics. For each topic, participants will be randomly assigned to 1 of the 2 messages so that they view a total of 10 alcohol messages. All 10 messages will be shown in random order. Participants will rate each message on how much it makes them want to drink less alcohol, reminds them that drinking can be harmful, and teaches them something new.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Perceived Message Effectiveness |
2.66; 2.54; 2.52; 2.50; 2.49; 2.46 | <0.001 sig |
| SECONDARY Reminding of Alcohol's Harms |
3.15; 2.99; 2.93; 3.00; 3.06; 2.92 | <0.001 sig |
| SECONDARY Learning Something New |
0.52; 0.48; 0.54; 0.28; 0.51; 0.25 | <0.001 sig |
Eligibility Criteria
Inclusion Criteria
- Age 21 and older
- Reside in the United States
- Able to complete a survey in English
- Consumed alcohol at least once per week during the past 4 weeks
Exclusion Criteria
- Under the age of 21
- Reside outside of the United States
- Unable to complete a survey in English
- Consumed alcohol less than once per week during the past 4 weeks
Data sourced from ClinicalTrials.gov (NCT06442800). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.