Development of An Online, Theory-Based Intervention to Reduce E-cigarette Use and Susceptibility to Smoking in Young Adults: A Pilot Study
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Enrollment
- 105
- Locations
- 1
- Primary Endpoint
- E-cigarette Use
Study Overview
Brief Summary
The goal of this intervention development and pilot clinical trial is to determine whether receiving the brief online intervention results in greater reductions in past 7-day e-cigarette use frequency and smoking susceptibility over an 8-week period compared to receiving the control condition in young adults who currently use e-cigarettes. Participants in the experimental condition will be asked to complete the 30-minute mobile-based program. Participants in the assessment-only control will be given the option to access the intervention after they complete their final survey at 8 weeks. All participants will complete our online surveys at baseline as well as 2-weeks, 4-weeks, and 8-weeks post-randomization. Researchers will compare outcomes among the intervention and control groups to determine the efficacy of the intervention.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- Single (Participant)
Eligibility Criteria
- Ages
- 18 Years to 24 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •be between the ages of 18 to 24
- •be able to read English
- •report vaping at least one day per week in the past month
- •report no history of cigarette use at screening and baseline.
Exclusion Criteria
- •reporting severe mental health, illicit drug use, or alcohol use disorder
- •currently receiving nicotine cessation services
Arms & Interventions
Intervention
Participants will be asked to complete a 30-minute intervention that is accessible on a mobile device, delivered via a webpage, and personalized to their individual vaping behavior and beliefs (based on the baseline surveys). The intervention will contain personalized normative feedback (PNF), Motivational Enhancement (ME), and education.
Participants will complete assessments at baseline as well as 2-weeks, 4-weeks, and 8-weeks post randomization.
Intervention: Live Free From E-cigarettes (Behavioral)
Waitlist Control
Participants will complete assessments at baseline as well as 2-weeks, 4-weeks, and 8-weeks post randomization. They will not receive the intervention during the active study phase, lasting 8 weeks. Participants will have the option to access the intervention once this active study phase is over.
Outcomes
Primary Outcomes
E-cigarette Use
Time Frame: 8 weeks
Participants will report the number of (1) days they vaped, (2) times they picked up their device to vape per day, and (3) puffs they took before putting their vaping device away per day in the past 7 days and 30 days
Smoking Susceptibility
Time Frame: 8 weeks
4-item Expanded Susceptibility to Smoking Index (ESSI)
Secondary Outcomes
- Perceived harms and benefits of vaping(8 weeks)
- Perceived harms and benefits of smoking(8 weeks)
- Motivation to vape(8 weeks)
- Motivation to smoke(8 weeks)
- Quitting vaping self-efficacy(8 weeks)
- Vaping quit attempts(8 weeks)
Investigators
Denise Tran
Assistant Professor
University of Southern California