NCT07721883

Brief Summary

The purpose of this study is to present social media posts with varying combinations of flavor types and mentions of stealth use, to adolescents and determine whether these message characteristics increase adolescents' perceptions of these products and susceptibility to using these products.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
4,500

participants targeted

Target at P75+ for not_applicable

Timeline
22mo left

Started Jul 2025

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress38%
Jul 2025May 2028

Study Start

First participant enrolled

July 1, 2025

Completed
1 year until next milestone

First Submitted

Initial submission to the registry

July 16, 2026

Completed
7 days until next milestone

First Posted

Study publicly available on registry

July 23, 2026

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2027

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2028

Last Updated

July 23, 2026

Status Verified

July 1, 2026

Enrollment Period

2.3 years

First QC Date

July 16, 2026

Last Update Submit

July 20, 2026

Conditions

Keywords

tobacco, e-cigarette, social media

Outcome Measures

Primary Outcomes (1)

  • Tobacco product use: Lifetime and past-month use of tobacco products Perceived harm of product Social norms about product use Susceptibility to tobacco use

    All of these are standard psychosocial measures from the Population Assessment of Tobacco and Health (PATH) survey.

    Immediately after viewing the stimuli

Study Arms (6)

Unflavored tobacco product, no depiction of concealment of product

PLACEBO COMPARATOR

A picture of a social media post

Behavioral: Each intervention will be a picture of a social media post. The posts will vary (in a 3X2 factorial design) the type of flavor described and whether concealability is described.

Flavored tobacco product, no depiction of concealment of product

EXPERIMENTAL

A picture of a social media post

Behavioral: Each intervention will be a picture of a social media post. The posts will vary (in a 3X2 factorial design) the type of flavor described and whether concealability is described.

Concept flavor tobacco product, no depiction of concealment of product

EXPERIMENTAL

A picture of a social media post

Behavioral: Each intervention will be a picture of a social media post. The posts will vary (in a 3X2 factorial design) the type of flavor described and whether concealability is described.

Unflavored tobacco product, depiction of concealment of product

EXPERIMENTAL

A picture of a social media post

Behavioral: Each intervention will be a picture of a social media post. The posts will vary (in a 3X2 factorial design) the type of flavor described and whether concealability is described.

Flavored tobacco product, depiction of concealment of product

EXPERIMENTAL

A picture of a social media post

Behavioral: Each intervention will be a picture of a social media post. The posts will vary (in a 3X2 factorial design) the type of flavor described and whether concealability is described.

Concept flavor tobacco product, depiction of concealment of product

EXPERIMENTAL

A picture of a social media post

Behavioral: Each intervention will be a picture of a social media post. The posts will vary (in a 3X2 factorial design) the type of flavor described and whether concealability is described.

Interventions

The researchers are making stimuli that will appear to be social media posts about tobacco products. They will vary on two dimensions in a 3X2 design: Type of flavor portrayed (flavored, unflavored, or concept flavor name) Whether the post portrays the tobacco product as concealable

Concept flavor tobacco product, depiction of concealment of productConcept flavor tobacco product, no depiction of concealment of productFlavored tobacco product, depiction of concealment of productFlavored tobacco product, no depiction of concealment of productUnflavored tobacco product, depiction of concealment of productUnflavored tobacco product, no depiction of concealment of product

Eligibility Criteria

Age14 Years - 17 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • High school student
  • Provides parental consent and youth assent

You may not qualify if:

  • No parental consent or youth assent
  • Can't read or speak English

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Southern California

Los Angeles, California, 90032, United States

RECRUITING

Related Links

MeSH Terms

Conditions

Vaping

Condition Hierarchy (Ancestors)

SmokingBehavior

Central Study Contacts

Jennifer B Unger, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
BASIC SCIENCE
Intervention Model
FACTORIAL
Model Details: Adolescents will view social media posts about tobacco products with varying characteristics. After viewing the posts, they will report their perceptions of tobacco products.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

July 16, 2026

First Posted

July 23, 2026

Study Start

July 1, 2025

Primary Completion (Estimated)

November 1, 2027

Study Completion (Estimated)

May 1, 2028

Last Updated

July 23, 2026

Record last verified: 2026-07

Data Sharing

IPD Sharing
Will not share

There is no need to share IPD with other researchers.

Locations