Consumer Responses to Alcohol Warnings

Alcohol Drinking Clinical Trial

Official title:

Consumer Responses to Alcohol Warnings

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT06159647
• Other study ID #: 71682
• Status: Completed
• Phase: N/A
• Start date: January 18, 2024
• Est. completion date: January 26, 2024

Study information

• Verified date: February 2024
• Source: Stanford University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The primary objective is to evaluate whether alcohol warnings about different topics elicit higher perceived message effectiveness than control messages. The secondary objective is to evaluate whether alcohol warnings about different topics elicit higher reactance than control messages.

Description:

Participants will complete a within-subjects online randomized experiment in which they will view and rate messages on the risk of alcohol consumption. Participants will view and rate 12 messages total: 10 warning messages and 2 control messages. They will rate each message on perceived message effectiveness (primary outcome) and message reactance (secondary outcome). The 10 warning messages will be about 5 different warning topics (i.e., 2 messages per topic) and the 2 control messages will be about 1 control topic (2 messages per topic). In this within-subjects experiment, the survey will present the topics in random order and the messages within each topic in random order.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 2522
• Est. completion date: January 26, 2024
• Est. primary completion date: January 26, 2024
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 21 Years and older

Eligibility

Inclusion Criteria:

• Age 21 and older

• Reside in the United States

• Able to complete a survey in English

Exclusion Criteria:

• Under 21 years of age

• Reside outside the United States

• Unable to complete a survey in English

Related Conditions & MeSH terms

• Alcohol Drinking

Intervention

Behavioral:
• Mouth cancer warning
Participants will view messages about the risk of mouth cancer from alcohol consumption.
• Throat cancer warning
Participants will view messages about the risk of throat cancer from alcohol consumption.
• Voice box (larynx) warning
Participants will view messages about the risk of voice box (larynx) cancer from alcohol consumption.
• Esophagus cancer warning
Participants will view messages about the risk of esophagus cancer from alcohol consumption.
• Liver cancer warning
Participants will view messages about the risk of liver cancer from alcohol consumption.
• Colon and rectum cancer warning
Participants will view messages about the risk of colon and rectum cancer from alcohol consumption.
• Breast cancer
Participants will view messages about the risk of breast cancer from alcohol consumption.
• Cancer (generic, not site-specific)
Participants will view messages about the risk of cancer (not site-specific) from alcohol consumption.
• Addiction and neurological changes
Participants will view messages about the risk of addiction and neurological changes from alcohol consumption.
• Hypertension
Participants will view messages about the risk of hypertension from alcohol consumption.
• Liver damage
Participants will view messages about the risk of liver damage from alcohol consumption.
• Harm to fetus
Participants will view messages about the risk of harm to a fetus from alcohol consumption during pregnancy.
• Dementia
Participants will view messages about the risk of dementia from alcohol consumption.
• Impaired sleep
Participants will view messages about the risk of impaired sleep from alcohol consumption.
• Drinking guidelines
Participants will view messages about guidelines for alcohol consumption.
• Control
Participants will view neutral messages unrelated to the harms of alcohol consumption.
• Road injuries
Participants will view messages about the risk of road injuries from alcohol consumption.

Locations

Country	Name	City	State
United States	Online study	Palo Alto	California

Sponsors (1)

Lead Sponsor	Collaborator
Stanford University

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Perceived message effectiveness	The study will assess perceived message effectiveness using 1 item: "How much does this message discourage you from wanting to drink alcohol?" Response options will range from "not at all" (coded as 1) to "a great deal" (coded as 5). Higher scores indicate more perceived message effectiveness.	The survey will take up to 20 minutes.
Secondary	Reactance	The study will assess reactance using 1 item: "Say how much you disagree or agree with this statement: This message exaggerates the health effects of alcohol." Response options will range from "strongly disagree" (coded as 1) to "strongly agree" (coded as 5). Higher scores indicate more reactance.	The survey will take up to 20 minutes.