NCT04249219

Brief Summary

While conventional cigarette use continues to decline among youth and young adults, e-cigarette (EC) use is on the rise. The use of ECs during young adulthood, particularly 18 years of age, is especially alarming because it is not only a critical period in development but also a time when tobacco use is established. Additionally, the tobacco industry targets individuals of this age with the hope that they will one day progress to using combustible cigarettes. Advertising may be one of the reasons leading young people to use ECs, and the Food and Drug Administration (FDA) now has the authority to regulate EC advertisement features. The goal of the study is to determine which EC ad features most strongly influence young adults' attitudes, susceptibility, and intentions to use ECs. Fifteen ads from the most popular EC brands that employ a brand, product descriptions, and modeling features were selected. Young adults who are susceptible to EC use will come into the lab and view these ads. During exposure, they will be assessed for real-time visual attention using eye-tracking, orienting responses using heart rate, and arousal using skin conductance as well as pre- and post-ad self-report measures of attitudes, susceptibility, and behavioral intentions. These factors will help determine the most high impact features, which will be associated with the greatest visual attention, orienting responses, and arousal levels and changes in attitudes. Findings from this study will provide public health officials important and urgently needed information as to what advertising features are contributing to the sharp rise in the use of ECs among young adults.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
62

participants targeted

Target at P75+ for early_phase_1

Timeline
Completed

Started Aug 2021

Shorter than P25 for early_phase_1

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 24, 2020

Completed
6 days until next milestone

First Posted

Study publicly available on registry

January 30, 2020

Completed
1.5 years until next milestone

Study Start

First participant enrolled

August 4, 2021

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 15, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 15, 2022

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

September 8, 2023

Completed
Last Updated

September 8, 2023

Status Verified

September 1, 2023

Enrollment Period

1 year

First QC Date

January 24, 2020

Results QC Date

June 29, 2023

Last Update Submit

September 7, 2023

Conditions

Outcome Measures

Primary Outcomes (3)

  • Attention to Specific ad Feature

    Heart rate was measured to assess the cognitive resources allocated to the message. Using three sensors applied to participants' fingers, electrocardiogram (ECG) signals were recorded with a Shimmer 3 EXG module, while viewing the advertisements and were sampled at 512 Hz. Heart change scores were computed using beats per minute (BPM) and subtracting the first second of the stimuli (participant had seen a black screen just prior) from scores for each second of message exposure for each participant. Then, scores were averaged across each advertisement. Lesser values indicated greater deceleration in heart rate, signaling more cognitive resources allocated to the message.

    Change from the first second of viewing to each subsequent second of the intervention (10 seconds per ad), averaged for each participant.

  • Arousal

    Skin conductance or galvanic skin response was measured using three sensors applied to participants' fingers. Skin conductance measured if there was an emotional response and the intensity of the emotional response. A "peak" is a biological indicator that something happened, and the participant had an emotional response to it. The amplitude of each peak for each participant was measured and averaged per ad.

    The average amplitude of skin conductance peaks over the 10 second viewing window for each ad brand.

  • Attention to Specific ad Feature

    Visual attention was assessed using an eye-tracker connected to the base of the computer screen. For each message, four areas of interest (AOI) were identified: 1) brand, 2) descriptor, 3) modeling, and 4) warning. All four AOIs were summed for a total number of milliseconds that a participant viewed the AOIs.

    Duration of seconds spent on all areas of interest during 10 second viewing window for each ad brand

Secondary Outcomes (1)

  • Motivations to Avoid E-cigarettes

    Immediately after viewing each ad

Study Arms (1)

E-Cigarette Ads

EXPERIMENTAL

All individuals in the study will see the same e-cigarette advertisements presented in a random order.

Other: Viewing e-cigarette ads

Interventions

All participants will see the same e-cigarette ads presented in a random order.

E-Cigarette Ads

Eligibility Criteria

Age18 Years - 26 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • years old,
  • Fluent in English,
  • Biochemically confirmed abstinence combusted tobacco or marijuana (eCO: exhaled carbon monoxide \<6 parts per million) at time of visit
  • Reporting never trying an e-cigarette, not even a puff OR reporting having used an e-cigarette in the past but has not used in the past 30 days
  • Susceptibility to EC use, will be determined using the Susceptibility to Use Tobacco Products questionnaire

You may not qualify if:

  • Younger than 18 years or older than 26 years
  • Not fluent in English
  • Not confirmed abstinent of combusted tobacco or marijuana
  • Use of an e-cigarette
  • Not susceptible to e-cigarette use

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Massachusetts Medical School

Worcester, Massachusetts, 01605, United States

Location

MeSH Terms

Conditions

Vaping

Condition Hierarchy (Ancestors)

SmokingBehavior

Results Point of Contact

Title
Elise Stevens
Organization
University of Massachusetts Chan Medical School

Study Officials

  • Elise M Stevens, PhD

    UMass Medical School

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
NA
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

January 24, 2020

First Posted

January 30, 2020

Study Start

August 4, 2021

Primary Completion

August 15, 2022

Study Completion

August 15, 2022

Last Updated

September 8, 2023

Results First Posted

September 8, 2023

Record last verified: 2023-09

Data Sharing

IPD Sharing
Will not share

Locations