Optimizing Text Messaging to Improve Adherence to Web-Based Cessation Treatment
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Truth Initiative
- Enrollment
- 1,485
- Locations
- 2
- Primary Endpoint
- Phase I - Composite adherence metric
Study Overview
Brief Summary
This study is comprised of 2 phases to study the impact of a text message system on overall adherence to a web-based smoking cessation program. Phase I uses a full factorial design to identify the most optimal text message intervention to maximize adherence to the BecomeAnEX.org smoking cessation program. Phase II is a randomized controlled trial that compares regular BecomeAnEX users to those who will receive the optimized text message intervention (from Phase I) in conjunction with BecomeAnEX for impact on long-term abstinence.
Detailed Description
This study is comprised of 2 active phases, all conducted with registered users on BecomeAnEX.org, a well-established smoking cessation website.
Phase I involves the initial development and optimization of the text message intervention. The investigators will examine the impact of 4 experimental text message intervention features on smokers' adherence to a web-based cessation intervention during the first 3 months of program enrollment. The investigators will utilize a full factorial design where participants will be randomized to 1 of 2 levels of each of the following features: 1) personalization (yes/no), 2) integration (yes/no), 3) dynamic tailoring (yes/no), and 4) message intensity (standard vs. decreasing). The primary outcome in Phase I will be a composite metric of utilization.
Phase II involves a 2-arm randomized trial that compares WEB alone to WEB plus the text message intervention from Phase I that yields optimal adherence (WEB+OA_TXT). The randomized trial will use a repeated measures design, with assessments at baseline, 3, 9, and 15 months. Follow-ups at 3, 9, and 15 months correspond to 0, 6, and 12 months post-treatment. The primary outcome is 30-day point prevalence abstinence (ppa) at 9-months. The investigators will assess and validate smoking status at all follow-ups. Other outcomes include motivation to quit, quit attempts, and continuous abstinence.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Factorial
- Primary Purpose
- Treatment
- Masking
- Single (Participant)
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •US residency
- •Current smoker
- •Access to and willingness to receive text messages on a mobile phone
- •Access to Internet
- •Access to and willingness to receive email communication from study personnel
Exclusion Criteria
- Not provided
Outcomes
Primary Outcomes
Phase I - Composite adherence metric
Time Frame: 3 months
The investigators will create a composite metric of adherence for each Phase I participant using a weighted sum of their total number of number of visits, as well as of their page views, time on site, and use of the 6 interactive components of the site per visit during 3 months post-enrollment.
Phase II - 30-day point prevalence abstinence
Time Frame: 9 months post randomization
Self-reported 30-day point prevalence abstinence at 9 months post randomization
Secondary Outcomes
- Phase II - 30day point prevalence abstinence(15 months post randomization)
Investigators
Amanda L. Graham, PhD
Director, Research Development
Truth Initiative