Evaluating the impact of health labels on alcohol purchases
Impact of Providing Health Information on Alcohol Labels in a Real-World Setting: a Randomized Controlled Trial Among Supermarket Customers in Barcelona
This study is testing if health labels on alcohol bottles can change how adults in Barcelona think about and buy alcohol, by comparing cancer warning labels to responsibility labels and looking at where the labels are placed.
Quick facts
| Phase | Not applicable |
|---|---|
| Study type | Interventional |
| Enrollment | 1300 (estimated) |
| Ages | 18 Years and up |
| Sex | All |
| Sponsor | World Health Organization Academic / other |
| Locations | 1 site (Barcelona) |
| Trial ID | NCT06915298 on ClinicalTrials.gov |
What this trial studies
This randomized controlled trial aims to assess how health information labels on alcohol containers influence knowledge and behaviors among adults buying alcohol in Barcelona, Spain. It compares the effects of cancer warning labels versus responsibility labels, as well as the impact of label positioning (front vs. back) on consumer responses. The study will measure changes in knowledge about alcohol-related cancer risks, behavioral intentions, risk perception, emotional responses, and support for alcohol policies. By analyzing these factors, the research seeks to understand the effectiveness of labeling in promoting healthier choices.
Who should consider this trial
Good fit: Ideal candidates for this study are adults aged 18 and older who have just purchased alcoholic beverages and can communicate in Spanish or Catalan.
Not a fit: Patients who do not purchase alcoholic beverages or those who cannot understand the labeling messages may not benefit from this study.
Why it matters
Potential benefit: If successful, this study could lead to improved public health outcomes by enhancing awareness of the risks associated with alcohol consumption.
How similar studies have performed: Other studies have shown that health warning labels can influence consumer behavior, suggesting potential success for this approach.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * have just purchased at least one alcoholic beverage container for their own consumption * speak Spanish or Catalan * are 18 years or older * provide informed consent to participation Exclusion Criteria: - all the purchased alcohol containers are too small for a label sticker to be affixed
Where this trial is running
Barcelona
- Sampled supermarkets in selected city neighbourhoods — Barcelona, Spain (Recruiting)
Study contacts
- Principal investigator: Daša Kokole, PhD — World Health Organisation Regional Office for Europe
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.