Questa pagina è stata tradotta automaticamente e l'accuratezza della traduzione non è garantita. Si prega di fare riferimento al Versione inglese per un testo di partenza.

E-cigarette Social Media Marketing and Its Perceptions by Youth

3 luglio 2026 aggiornato da: Jennifer Unger, University of Southern California

Evolution of Influencer-driven E-cigarette Marketing on Social Media and Its Effect on E-cigarette Perceptions and Use Patterns Among Adolescents

The proposed study will conduct two randomized between-subject experiments among 6,000 adolescents (per each experiment) recruited nationwide to test the effects of audio-visual features of e-cigarette influencer marketing on perceptions of influencer credibility, e-cigarette harm perceptions, appeal, and susceptibility to e-cigarette use. This protocol represent the first experiment.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

We will estimate the effects of visual features often used in e-cigarette influencer marketing on social media on perceptions of influencer credibility, harm perceptions, appeal and susceptibility to e-cigarette use among adolescents. We will assess interaction of the perceived age of influencers (young-looking vs older-looking) with the following features of influencer marketing, using two survey-based experiments: Experiment 1 will assess the effects of theme or social context appeal, i.e., use of generally positively perceived lifestyle contexts (e.g., healthy lifestyle, entertainment) alongside e-cigarette marketing.

Tipo di studio

Interventistico

Iscrizione (Stimato)

6000

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

  • Nome: Jennifer B Unger, PI, PhD
  • Numero di telefono: (323) 442-7200
  • Email: unger@usc.edu

Backup dei contatti dello studio

  • Nome: Julia Vassey, PhD
  • Numero di telefono: (323) 442-7200
  • Email: vassey@usc.edu

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Bambino

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  • 14-17 years of age,
  • English fluency,

Exclusion Criteria:

Not meeting the following criteria:

  • 14-17 years of age,
  • English fluency,

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Altro
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione fattoriale
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Experimental: Videos featuring young influencers promoting e-cigarettes alongside fitness
Altro: Youth Perceptions of Influencer Age and Various Contexts in E-Cigarette Marketing
Participants watched online survey-imbedded promotional videos featuring influencers. Influencer age appearance was manipulated using AI-based age filter.
Sperimentale: Experimental: Videos featuring young influencers promoting e-cigarettes alongside entertainment
Altro: Youth Perceptions of Influencer Age and Various Contexts in E-Cigarette Marketing
Participants watched online survey-imbedded promotional videos featuring influencers. Influencer age appearance was manipulated using AI-based age filter.
Sperimentale: Experimental: Videos featuring young influencers promoting e-cigarettes alongside fashion
Altro: Youth Perceptions of Influencer Age and Various Contexts in E-Cigarette Marketing
Participants watched online survey-imbedded promotional videos featuring influencers. Influencer age appearance was manipulated using AI-based age filter.
Sperimentale: Experimental: Videos featuring young influencers promoting e-cigarettes alongside avatar
Altro: Youth Perceptions of Influencer Age and Various Contexts in E-Cigarette Marketing
Participants watched online survey-imbedded promotional videos featuring influencers. Influencer age appearance was manipulated using AI-based age filter.
Sperimentale: Experimental: Videos featuring older influencers promoting e-cigarettes alongside fitness
Altro: Youth Perceptions of Influencer Age and Various Contexts in E-Cigarette Marketing
Participants watched online survey-imbedded promotional videos featuring influencers. Influencer age appearance was manipulated using AI-based age filter.
Sperimentale: Experimental: Videos featuring older influencers promoting e-cigarettes alongside fashion
Altro: Youth Perceptions of Influencer Age and Various Contexts in E-Cigarette Marketing
Participants watched online survey-imbedded promotional videos featuring influencers. Influencer age appearance was manipulated using AI-based age filter.
Sperimentale: Experimental: Videos featuring older influencers promoting e-cigarettes alongside avatar
Altro: Youth Perceptions of Influencer Age and Various Contexts in E-Cigarette Marketing
Participants watched online survey-imbedded promotional videos featuring influencers. Influencer age appearance was manipulated using AI-based age filter.
Sperimentale: Experimental: Videos featuring young influencers promoting e-cigarettes alone
Altro: Youth Perceptions of Influencer Age and Various Contexts in E-Cigarette Marketing
Participants watched online survey-imbedded promotional videos featuring influencers. Influencer age appearance was manipulated using AI-based age filter.
Comparatore attivo: Experimental: Videos featuring older influencers promoting e-cigarettes alone
Altro: Youth Perceptions of Influencer Age and Various Contexts in E-Cigarette Marketing
Participants watched online survey-imbedded promotional videos featuring influencers. Influencer age appearance was manipulated using AI-based age filter.
Comparatore placebo: Experimental: Videos featuring two neutral profiles of older influencers
Altro: Youth Perceptions of Influencer Age and Various Contexts in E-Cigarette Marketing
Participants watched online survey-imbedded promotional videos featuring influencers. Influencer age appearance was manipulated using AI-based age filter.
Comparatore placebo: Experimental: Videos featuring two neutral profiles of younger influencers
Altro: Youth Perceptions of Influencer Age and Various Contexts in E-Cigarette Marketing
Participants watched online survey-imbedded promotional videos featuring influencers. Influencer age appearance was manipulated using AI-based age filter.
Sperimentale: Experimental: Videos featuring older influencers promoting e-cigarettes alongside entertainment
Altro: Youth Perceptions of Influencer Age and Various Contexts in E-Cigarette Marketing
Participants watched online survey-imbedded promotional videos featuring influencers. Influencer age appearance was manipulated using AI-based age filter.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Harm Perceptions of e-cigarettes
Lasso di tempo: Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Responses to one question adapted from PATH, "Based on the videos you just watched, do you think using e-cigarettes for vaping nicotine is harmful to your health?" The outcome was assessed on the 5-point ordinal scale with the following response choices: Not at all harmful, slightly harmful, somewhat harmful, very harmful, extremely harmful.
Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Perceived appeal of e-cigarettes
Lasso di tempo: Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Responses to the following questions: using e-cigarette is: not cool/cool, unattractive/attractive were assessed on the 7-point semantic differential scale with the word pairs anchored at each end. The scale was adapted from prior research. The items were combined (by summing all the non-missing values of the items) into one variable (α=0.94).
Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Susceptibility to e-cigarette use
Lasso di tempo: Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Susceptibility to e-cigarette use was measured (among never-users of e-cigarettes), using the validated three-item scale (indicating peer influence, intention, and curiosity about e-cigarette use) adapted from PATH, and combined into one variable (α=0.93). Consistent with prior research, the measure was dichotomized with responses "definitely not" to all items being coded as "not susceptible" and responses "probably not," "probably yes", or "definitely yes" being coded as "susceptible.
Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Perceived influencer credibility
Lasso di tempo: Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Perceived influencer credibility (i.e., honesty, trustworthiness, knowledge) were assessed using a 0 (e.g., dishonest) -100 (e.g., honest) scale that has been validated in prior research.
Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

University of Southern California

Collaboratori

National Institutes of Health (NIH)

Investigatori

  • Investigatore principale: Jennifer B Unger, PhD, University of Southern California

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

1 gennaio 2027

Completamento primario (Stimato)

30 dicembre 2028

Completamento dello studio (Stimato)

30 dicembre 2030

Date di iscrizione allo studio

Primo inviato

3 luglio 2026

Primo inviato che soddisfa i criteri di controllo qualità

3 luglio 2026

Primo Inserito (Effettivo)

10 luglio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

10 luglio 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

3 luglio 2026

Ultimo verificato

1 luglio 2026

Maggiori informazioni

Termini relativi a questo studio

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • 1R01CA300653-01A1

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Descrizione del piano IPD

survey is anonymous. Data will be publicly available on GitHub repository if manuscripts related to this study are accepted for publication

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

Prove cliniche su Svapare

Cerca prove simili

Sponsor e collaboratori

Condizioni mediche

Interventi farmacologici

CROs by country

CROs in Hungary

Condizioni

Malattie rare

Interventi farmacologici

Supplementi dietetici

Sponsor / Collaboratori

Sedi

3
Sottoscrivi