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A Text Messaging Trial to Test Vaping Health Messages Optimized to Young Adults' Vaping Status

Identifying and Examining the Effects of Source and Presentation on Responses to Electronic Cigarette Public Education Messages in Young Adult Vapers and Non-vapers

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07038317
Enrollment
120
Registered
2025-06-26
Start date
2026-06-30
Completion date
2028-01-31
Last updated
2026-06-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Message Exposure, Vaping Behaviors, Young Adults

Brief summary

The goal of this study is to examine if e-cigarette education messages delivered using a source and presentation tailored to one's vaping status influences young adults' vaping behaviors. The main questions it aims to answer are: 1. Does receiving e-cigarette education messages presented using a source (expert or peer) and sidedness (one or two-sided) optimized for the current vaper group influence vaping cessation among young adults who vape daily? 2. Does receiving e-cigarette education messages presented using a source (expert or peer) and sidedness (one or two-sided) optimized for the non-vaper group influence vaping initiation among young adults who are susceptible to vaping? Participants will be randomly assigned to either the treatment (receiving messages tailored to one's vaping status) or the control (receiving non-tobacco messages) condition and receive SMS three times per week over the course of 6 months. They will complete self-report assessment and show salivary cotinine results for nicotine testing at 4 timepoints.

Interventions

OTHERIntervention

Intervention involves e-cigarette education messages tailored to participants' vaping status that will be sent out in SMS via text messaging three times per week over the course of 6 months.

OTHERControl

Participants will receive non-tobacco messages (messages about sun safety) three times per week over the course of 6 months.

Sponsors

University of Hawaii
Lead SponsorOTHER
National Cancer Institute (NCI)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to 24 Years
Healthy volunteers
Yes

Inclusion criteria

* 18-24 years old * Fluent in English * Not currently using tobacco products other than e-cigarettes at the time of enrollment * Have a mobile phone to send and receive text messages

Exclusion criteria

* Age below 18 or above 24 * Not being fluent in English * Currently using tobacco products other than e-cigarettes * Not having a mobile phone

Design outcomes

Primary

MeasureTime frameDescription
Self-reported vapingBaseline, six-monthPast-30-day vaping (yes/no) will be assessed
Biochemical confirmation of vapingBaseline, one-month, three-month, six-monthSalivary cotinine for nicotine testing

Secondary

MeasureTime frameDescription
Harm perceptionsBaseline, one-month, three-month, six-monthParticipants will be asked to indicate the extent to which they think vaping nicotine (using e-cigarettes) is… safe, containing flavors that are safe to use, containing dangerous chemical, harmful to health on a scale from 1 (strongly disagree) to 5 (strongly agree).
Message perceptionsOne-month, three-month, six-monthParticipants will be asked to indicate the extent to which they think the message was worth remembering, grabbed their attention, powerful, convincing, meaningful on a scale from 1 (strongly disagree) to 5 (strongly agree).
Message likingOne-month, three-month, six-monthParticipants will be asked to indicate the extent to which they liked the message they saw on a scale from 1 (dislike very much) to 5 (like very much).
Number of days of past-30-day e-cigarette useFrom enrollment to the end of study at 24 weeks.Participants will be asked to report the number of days in the past 30 days (between 0 to 30) they used an e-cigarette.
E-cigarette accessibilityBaseline, one-month, three-month, six-monthParticipants will be assessed how they usually purchase e-cigarettes for themselves with categorical response options of…in person, from the Internet, by phone, don't buy their own. This question will only be asked if response indicates participants are between the ages of 18 and 20 AND have used e-cigarettes more than 0 days in the past 30 days.

Countries

United States

Contacts

CONTACTDonghee N Lee, PhD
nlee@cc.hawaii.edu808-441-8184

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 13, 2026