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An Online Intervention to Reduce E-cigarette Use and Cigarette Smoking Risk in Adolescents

31. maj 2026 opdateret af: Denise Tran, University of Southern California

An Online Intervention to Reduce E-cigarette Use and Potential for Cigarette Smoking in Adolescents

The goal of this clinical trial is to learn if a brief digital intervention can reduce e-cigarette use and prevent cigarette smoking initiation in teenagers ages 12-17. The main questions it aims to answer are:

  • Compared to the control condition, does the intervention reduce e-cigarette use frequency in teenagers?
  • Compared to the control condition, does the intervention reduce risk to start smoking cigarettes in teenagers? Researchers will compare the digital intervention to see if it leads to greater reductions in e-cigarette use and smoking risk than a waitlist control condition.

Participants will complete 5 brief online surveys across 12 weeks, and some will be selected to do a post-intervention virtual interview. In this interview, participants will be asked to share their opinions about the intervention and identify areas that need refinement.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

150

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Barn

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • be between the ages of 12 to 17
  • be able to read English
  • be a current resident of California
  • report vaping at least one day per week in the past month
  • report no history of cigarette use at screening and baseline
  • have access to a computer or mobile device with internet access

Exclusion Criteria:

  • currently receiving nicotine cessation services

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Digital vaping intervention
Virtual Intervention for Behavioral Empowerment (VIBE) is a one-time 30-minute online intervention that incorporates Personalized Normative Feedback (PNF) for vaping and smoking, motivational enhancement to encourage healthy behavior change, and vaping and smoking-related harms education. Lastly, strategies recommended for nicotine cessation are presented. This intervention can be completed in one sitting or split into multiple sessions and is delivered via an interactive website.
Andet: Virtual Intervention for Behavioral Empowerment (VIBE)
The intervention contains Personalized Normative Feedback (PNF), motivational interviewing (MI), and education about vaping and smoking harms. The program begins with the MI-based portion, which includes exploration of their experienced health and personal consequences of vaping and potential reasons for and motivation for shifting vaping behaviors (e.g., to save money, to be free from addiction). Second, the education portion involves presentation of the actual harms posed by e-cigarettes to clarify any misperceptions of the negative effects of vaping and nicotine exposure in teens. Next, users are presented with the PNF portion. In the PNF portion, participants receive feedback about their perceptions of peer vaping by presenting their typical behavior/attitude alongside their perceptions of others' behavior/attitude alongside the actual norm of the behavior/attitude. Lastly, strategies recommended for nicotine cessation are presented.
Ingen indgriben: Waitlist control
Those in the control arm will be waitlisted and given the option to access VIBE (the intervention) at the end of study.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Days vaped in the past 7 days
Tidsramme: Past 7 day vaping measured at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks post-randomization.
Participants will report the number of days they vaped in the past 7 days.
Past 7 day vaping measured at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks post-randomization.
Times vape is picked up per day
Tidsramme: Past 7 day vaping measured at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks post-randomization.
Participants will report the number of times they picked up their device to vape per day in the past 7 days.
Past 7 day vaping measured at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks post-randomization.
Smoking Susceptibility
Tidsramme: Past 7 day smoking susceptibility measured at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks post-randomization.
Smoking susceptibility will be assessed with the 4-item Expanded Susceptibility to Smoking Index, with the following responses: Definitely not, Probably not, Probably yes, and Definitely yes. This is a binary outcome. If a respondent answers "definitely not" to all four questions, they are categorized as not susceptible. Any other response on any item flags the respondent as susceptible.
Past 7 day smoking susceptibility measured at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks post-randomization.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Vaping Quit Attempts
Tidsramme: Vaping quit attempts in the past 7 days assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Quit attempts will be measured with questions asking for the number of quit attempts lasting at least 1 day since the last assessment.
Vaping quit attempts in the past 7 days assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Vaping Descriptive Normative Perceptions
Tidsramme: Vaping normative perceptions assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Participants will report their beliefs regarding the percentage of teens who vaped, number of days individuals their age vaped, the number of times others their age picked up their vaping device per day in the past 30 days,
Vaping normative perceptions assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Vaping Injunctive Normative Perceptions
Tidsramme: Vaping normative perceptions assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Participants will report how much they believe others their age approve (or disapprove) of vaping using a 5-point Likert scale (responses options: Strongly disapprove to Strongly approve).
Vaping normative perceptions assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Smoking Descriptive Normative Perceptions
Tidsramme: Smoking normative perceptions assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Participants will report their beliefs about the percentage of teens who have smoked, the number of days others their age smoked in the past 30 days, and the quantity of cigarettes others their age smoked per day in the past 30 days.
Smoking normative perceptions assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Smoking Injunctive Normative Perceptions
Tidsramme: Smoking normative perceptions assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Participants will report how much they believe others their age approve (or disapprove) of cigarette smoking using a 5-point Likert scale (responses options: Strongly disapprove to Strongly approve).
Smoking normative perceptions assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Quitting vaping self-efficacy
Tidsramme: Self-efficacy in the past 7 days assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Self-efficacy will be assessed by 2 adapted items that originally assessed self-efficacy to quit smoking. Participants rate their confidence about quitting vaping "someday" and "in the next 6 months."
Self-efficacy in the past 7 days assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Motivation to Quit Vaping
Tidsramme: Motivation to quit in the past 7 days assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.
Motivation will be assessed by asking participants whether they were seriously thinking about quitting vaping with responses ranging from 1 = No, I am not thinking about quitting to 5 = Yes, I want to quit during the next 30 days.
Motivation to quit in the past 7 days assessed at baseline, 2 weeks, 4 weeks, 8 weeks, and 12 weeks.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University of Southern California

Samarbejdspartnere

Tobacco Related Disease Research Program

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. juli 2026

Primær færdiggørelse (Anslået)

30. marts 2027

Studieafslutning (Anslået)

30. marts 2027

Datoer for studieregistrering

Først indsendt

21. maj 2026

Først indsendt, der opfyldte QC-kriterier

31. maj 2026

Først opslået (Faktiske)

3. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

3. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

31. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • T35IP9813

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

Individual participant data that underlie the results reported in this study, after de-identification, will be shared. The Study Protocol and Statistical Analysis Plan will also be available. Data will be available beginning 9 months and ending 36 months following article publication to researchers who provide a methodologically sound proposal to achieve the aims in the approved proposal. Proposals must be approved by the Principal Investigator. Please submit requests and usage plans to deniset@usc.edu.

IPD-delingstidsramme

Data will be available beginning 9 months and ending 36 months following article publication upon approval.

IPD-delingsadgangskriterier

De-identified individual participant data will be shared with external researchers who submit a scientifically meritorious research proposal and a comprehensive Statistical Analysis Plan (SAP). Data may be utilized for any secondary analysis or meta-analysis that contributes to public health knowledge. Requests will be evaluated directly by the Principal Investigator. Access is conditional upon the signing of a standard institutional Data Sharing Agreement. Data files will be securely shared via email attachment or secure cloud download.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • SAP
  • ANALYTIC_CODE

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