Impact of Vaping Prevention Advertisements

Impact of The Real Cost Vaping Prevention Advertisements on Adolescents

The purpose of this randomized controlled trial is to determine whether exposure to vaping prevention advertisements (ads) reduce susceptibility to vaping among adolescents. Previous studies have been informative, but they have tended to be one-time experimental studies that do not replicate the repeated exposures to ads that people have in the real world. This study addresses this issue by repeatedly exposing participants to vaping prevention ads over time. Participants will be adolescents aged 13-17 who currently vape or who are susceptible to vaping.

Participants will be randomly assigned to ad stimuli. They will be assigned to one of two The Real Cost trial arms-health harms or addiction-or to a control trial arm (probability of assignment is 1/3 for all trial arms). Participants in the study will take 4 online surveys over a 3-week period, once per week (At week 0, 1, 2, and 3). All participants will view randomized ad stimuli based on their trial arm and answer surveys items at each session.

Study Overview

• Status: Completed
• Conditions: Vaping
• Intervention / Treatment: Behavioral: The FDA's The REal Cost vaping prevention ads - Health harms theme; Behavioral: The FDA's The Real Cost vaping prevention ads - Addiction theme; Behavioral: Neutral vaping ads

Detailed Description

Tobacco prevention mass media campaigns are a key tool for reducing tobacco use among adolescents. While vaping has increased greatly among adolescents, there has been a dearth of research on effective communication strategies to reduce vaping. This study will test the impact of advertisements from the Food and Drug Administration's The Real Cost campaign on reducing susceptibility to vaping in a randomized controlled trial, illuminating whether such ads are effective as well as what themes are most effective (i.e., health harms, addiction). The investigators focus on adolescents (ages 13-17) who currently vape or are at risk of vaping.

Setting: The trial will be a longitudinal online study with 4 surveys over a 3 week period - 1 survey per week.

Recruitment: Adolescent participants will be recruited through Qualtrics, an online survey panel platform. Interested prospective participants will complete a screening questionnaire to determine their eligibility. If eligible, Qualtrics will invite them to enroll in the trial.

Informed Consent: Qualtrics will obtain parental consent online for adolescents who are eligible and interested in participating. After parental consent, adolescents will provide online assent prior to taking the survey.

Randomization: After providing informed assent, Qualtrics survey software will randomly assign participants to one of the three trial arms. Participants will have an equal chance of being randomized to any of the 3 trial arms.

Assessment: Participants in the study will take 4 surveys over a 3-week period. This will allow for multiple exposures to campaign ads. At week 0, randomize participants will be randomized to 1 of 2 FDA The Real Cost vaping prevention ad trial arms (health harms or addiction) or to a control arm (investigator created neutral ads about vaping). In each condition, participants will view 3 ads at each session, in a random order, corresponding to the theme they were assigned. At the first session (week 0), each participant will complete measures of vaping and smoking behavior, and will then view the ads that correspond to their trial arm. They will complete measures assessing message reactions after viewing each ad, followed by measures of susceptibility to vaping, vaping and smoking beliefs, and finally questions assessing demographics. For week 1 and 2 assessments, participants will complete measures of susceptibility to vaping, vaping and smoking beliefs, and vaping and smoking behavior. They will then view the same 3 ads from their trial arm and complete the message reactions measures. For the week 3 assessment, participants will only complete measures of susceptibility to vaping, vaping and smoking beliefs, and vaping and smoking behavior. Each survey will take approximately 15 minutes.

• Study Type: Interventional
• Enrollment (Actual): 1565
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • North Carolina
    • Chapel Hill, North Carolina, United States, 27599
      • University of North Carolina, Chapel Hill

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 13 years to 17 years (Child)
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Between ages 13-17 years old
• Be able to read and speak English
• Be able to take an online survey in English
• Be susceptible to vaping

Exclusion Criteria:

• None

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: The Real Cost vaping prevention ads - Health effects theme	Behavioral: The FDA's The REal Cost vaping prevention ads - Health harms theme; Three vaping prevention video ads from the FDA's The Real Cost prevention campaign about the health harms of vaping will be shown to participants at weeks 0, 1, and 2. Ads will be shown in a random order.
Experimental: The Real Cost vaping prevention ads - Addiction theme	Behavioral: The FDA's The Real Cost vaping prevention ads - Addiction theme; Three vaping prevention video ads from the FDA's The Real Cost prevention campaign about vaping addiction will be shown to participants at week 0, 1, and 2. Ads will be shown in a random order.
Other: Neutral vaping ads	Behavioral: Neutral vaping ads; Three neutral (i.e., purely informational and without graphics) vaping video ads developed by the Investigators will be shown to participants at weeks 0, 1, and 2. Ads will be shown in a random order.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Mean Susceptibility to Vaping Score	The 3-item Susceptibility to Vaping scale will be used to assess the extent to which adolescents are open to vaping. Response options are on a 1 to 4 scale. Overall scale scores are determined by summing scores of the 3 items and dividing by 3 (range 1-4), with higher scores representing a higher amount of the construct.	Week 3

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Mean attention score	The 1-item mean attention measure assesses the extent to which a participant reports that an ad grabs their attention. Response options are on a 1 to 5 scale, with higher scores representing a higher amount of the construct.	Week 2
Mean negative affect score	The 3-item negative affect scale assesses the extent to which an ad elicits negative emotion from the participant, such as fear or disgust. Response options are on a 1 to 5 scale. Overall scale scores are determined by summing scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct.	Week 2
Mean cognitive elaboration score	The 3-item mean cognitive elaboration scale assesses the extent to which a participant thought about the addictiveness or harmfulness of vaping in the past 7 days. Response options are on a 1 to 5 scale. Overall scale scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct.	Week 3
Mean social interactions score	The 3-item mean social interactions scale assesses the extent to which a participant talked about the addictiveness or harmfulness of vaping with others in the past 7 days. Response options range on a scale from 1 (0 times) to 6 (11 or more times). Overall scale scores are determined by summing the scores (number of times) from the 3 items and dividing by 3 (range 0-33), with higher scores representing a higher amount of the construct.	Week 3
Mean vaping health harm risk beliefs score	The 3-item vaping health harm risk beliefs scale assesses the extent to which a participant believes that vaping will lead to health harms. Response options are on a 1 to 5 scale. Overall scales scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct.	Week 3
Mean vaping addiction risk beliefs score	The 3-item vaping addiction risk beliefs scale assesses the extent to which a participant believes that vaping will lead to addiction. Response options are on a 1 to 5 scale. Overall scale scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct.	Week 3
Mean vaping attitudes score	The 3-item vaping attitudes scale assesses a participant's attitude towards vaping (e.g., good/bad). Response options are on a 1 to 5 scale. Overall scale scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct.	Week 3
Proportion of participants who vape (e-cigarette use)	Participants will be asked the number of days they vaped over the past 21 days. Vaping will be determined as follows: 0 days = non-vaper; 1 or more days = vaper	Week 3
Mean smoking health harm risk belief score	The 1-item mean smoking health harm risk belief measure assesses the extent to which a participant believes that smoking will lead to health harms. Response options are on a 1 to 5 scale, with higher scores representing a higher amount of the construct.	Week 3
Mean smoking addiction risk belief score	The 1-item mean smoking health harm risk belief measure assesses the extent to which a participant believes that smoking will lead to health harms. Response options are on a 1 to 5 scale, with higher scores representing a higher amount of the construct.	Week 3
Mean smoking attitude score	The 1-item mean smoking attitude measure assesses a participant's attitude toward smoking (i.e., good/bad). Response options are on a 1 to 5 scale, with higher scores representing a higher amount of the construct.	Week 3
Mean susceptibility to smoking cigarettes	The 3-items mean susceptibility to smoking cigarettes scale assesses a participant's susceptibility to smoking cigarettes. Response options are on a 1 to 5 scale. Overall scale scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct.	Week 3
Proportion of participants who smoke cigarettes	Participants will be asked the number of days they smoked cigarettes over the past 21 days. Cigarette smoking will be determined as follows: 0 days = non-smoker; 1 or more days = smoker.	Week 3

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Mean perceived message effectiveness score (UNC youth scale)	The 3-item UNC youth mean perceived message effectiveness scale assesses a participant's judgement of an ad's impact on their vaping beliefs and behavior. Response options are on a 1 to 5 scale. Overall scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct.	Week 2
Mean perceived message effectiveness score (FDA Scale)	The 6-item FDA mean perceived message effectiveness scale assesses a participant's general impressions of an ad. Response options are on a 1 to 5 scale. Overall scale scores are determined by summing the scores of the 6 items and dividing by 6 (range 1-5), with higher scores representing a higher amount of the construct.	Week 2
Mean avoidance score	The 3-item avoidance scale assesses the extent to which a participant wants to avoid processing an ad. Response options are on a 1 to 5 scale. Overall scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct.	Week 2
Mean reactance score	The 1-item reactance measure assesses the extent to which an ad makes a participant feel annoyed. Response options are on a 1 to 5 scale, with higher scores representing a higher amount of the construct.	Week 2
Mean vaping social enhancement beliefs score	The 3-item mean vaping social enhancement beliefs scale assesses what a participant believes about the social benefits of vaping (e.g., fit in better with friends). Response options are on a 1 to 5 scale. Overall scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct.	Week 3
Mean vaping affect regulation beliefs score	The 3-item mean vaping affect regulation beliefs scale assesses what a participant believes about the experience of vaping (e.g., feel good). Response options are on a 1 to 5 scale. Overall scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct.	Week 3
Mean vaping injunctive norms score	The 3-item mean vaping injunctive norms scale assesses a participant's perception of others' approval or disapproval of their vaping behavior. Response options are on a 1 to 5 scale. Overall scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct.	Week 3
Mean vaping refusal self-efficacy	The 3-item mean vaping refusal self-efficacy scale assesses a participant's confidence that they could refuse to vape in a social situation. Response options are on a 1 to 5 scale. Overall scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct.	Week 3

Collaborators and Investigators

• Sponsor: UNC Lineberger Comprehensive Cancer Center
• Collaborators: National Cancer Institute (NCI); National Institutes of Health (NIH); Food and Drug Administration (FDA)
• Investigators: Principal Investigator: Seth Noar, PhD, University of North Carolina, Chapel Hill

Publications and helpful links

General Publications

• Noar SM, Gottfredson NC, Kieu T, Rohde JA, Hall MG, Ma H, Fendinger NJ, Brewer NT. Impact of Vaping Prevention Advertisements on US Adolescents: A Randomized Clinical Trial. JAMA Netw Open. 2022 Oct 3;5(10):e2236370. doi: 10.1001/jamanetworkopen.2022.36370.

Study record dates

Study Major Dates

• Study Start (Actual): July 3, 2021
• Primary Completion (Actual): November 3, 2021
• Study Completion (Actual): November 3, 2021

Study Registration Dates

• First Submitted: April 5, 2021
• First Submitted That Met QC Criteria: April 5, 2021
• First Posted (Actual): April 8, 2021

Study Record Updates

• Last Update Posted (Actual): January 9, 2024
• Last Update Submitted That Met QC Criteria: January 5, 2024
• Last Verified: January 1, 2024

More Information

Terms related to this study

• Other Study ID Numbers: 19-3174; 1R01CA246600-01 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: Deidentified individual data that supports the results will be shared beginning 9 to 36 months following publication provided the investigator who proposes to use the data has approval from an Institutional Review Board (IRB), Independent Ethics Committee (IEC), or Research Ethics Board (REB), as applicable, and executes a data use/sharing agreement with UNC.
• IPD Sharing Time Frame: 9 to 36 months following publication
• IPD Sharing Access Criteria: Investigator who proposes to use the data has approval from an IRB, IEC, or REB, as applicable, and an executed data use/sharing agreement with UNC.
• IPD Sharing Supporting Information Type: STUDY_PROTOCOL; SAP; ICF; ANALYTIC_CODE

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No