Brief Behavioural Economic Intervention for Smoking Cessation
- Conditions
- Tobacco Smoking
- Interventions
- Behavioral: Brief cessation adviceBehavioral: Opt-in active referralBehavioral: Opt-out active referralBehavioral: Behavioral economic mobile messaging
- Registration Number
- NCT06451081
- Lead Sponsor
- The University of Hong Kong
- Brief Summary
The goal of this clinical trial is to test the effectiveness of brief behavioural economic intervention in promoting smoking cessation among smokers in the community.
- Detailed Description
Smoking cessation services are free and effective but underused in Hong Kong. Active referral to smoking cessation services has consistently been found effective in promoting service use and successful quitting as a stand-alone strategy or when combined with other interventions. Participants who received active referral are introduced about the cessation services in Hong Kong and offered connection to the services of their choices. Contacts of participants who agreed to be referred are transferred to the selected cessation providers, who will subsequently contact the participants for further treatment.
The current active referral intervention uses an opt-in approach, where participants are required to actively choose to be connected to the services. By leveraging behavioural economic principles, a simple yet promising strategy to strengthen the active referral intervention is to utilize an "opt-out" approach, where participants are automatically referred to the service unless they actively decline the referral. By making referral to smoking cessation services as the default choice, the investigators aim to increase the uptake of these services and thus improve smoking cessation outcomes. Additionally, mobile messaging informed by behavioural economics principles can serve as nudges to prompt smokers to initiate quitting and utilise cessation services.
The clinical trial aims to test the effectiveness of opt-out referral, with or without behavioural economic-based mobile messaging, compared to opt-in referral, in promoting smoking cessation. The trial will be nested within the 15th "Quit to Win" Smoke-free Community Campaign organised by the Hong Kong Council on Smoking and Health.
Recruitment & Eligibility
- Status
- RECRUITING
- Sex
- All
- Target Recruitment
- 1017
- Hong Kong residents aged 18 years or above
- Smoke cigarette or heated tobacco product or e-cigarette daily in the past 3 months
- Exhaled carbon monoxide level ≥4 parts per million or a positive salivary cotinine test
- Able to communicate in and read Chinese
- Own a smartphone with a mobile instant messaging app installed
- Participating in another smoking cessation programme or using any smoking cessation drug or nicotine replacement therapy
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Opt-in group Opt-in active referral Brief cessation advice + Opt-in active referral Opt-out group Opt-out active referral Brief cessation advice + Opt-out active referral Opt-in group Brief cessation advice Brief cessation advice + Opt-in active referral Opt-out+ group Brief cessation advice Brief cessation advice + Opt-out active referral + behavioural economics mobile messaging Opt-out+ group Opt-out active referral Brief cessation advice + Opt-out active referral + behavioural economics mobile messaging Opt-out+ group Behavioral economic mobile messaging Brief cessation advice + Opt-out active referral + behavioural economics mobile messaging Opt-out group Brief cessation advice Brief cessation advice + Opt-out active referral
- Primary Outcome Measures
Name Time Method Biochemically validated tobacco abstinence 6 months after randomisation Verified by an exhaled carbon monoxide level of \<4 parts per million and a negative salivary cotinine test
- Secondary Outcome Measures
Name Time Method Self-reported 7-day point-prevalence tobacco abstinence 6 months after randomisation Tobacco abstinence in the past 7 days
Self-reported 24-hour quit attempt 6 months after randomisation Tobacco abstinence for at least 24 hours
Biochemically validated tobacco abstinence 3 months after randomisation Verified by an exhaled carbon monoxide level of \<4 parts per million and a negative salivary cotinine test
Self-reported use of smoking cessation service 6 months after randomisation Use of any smoking cessation service during the follow-up period
Trial Locations
- Locations (1)
Community sites
🇭🇰Hong Kong, Hong Kong