Quit Smoking: Optimizing Health Promotion Strategy

Summary

The goal of this factorial trail is to to optimize an intervention package to enhance quit attempt preparations, quit attempts, and tobacco abstinence among smokers without a plan to quit.

The main questions it aims to answer are:

* What are the main effects of the four intervention components for increasing quit attempt preparation?
* Are there synergistic or antagonistic interactions between components?
* Does chat-based instant message or chatbot enhance the effects of nicotine replacement therapy sampling and/or simple exercise education in increasing motivation to quit?
* When participants experienced successful quitting by using the nicotine replacement therapy patch, will other tools, such as simple exercise education, chat-based instant messages, or chatbot, could help in the process and strengthen the effects of the nicotine replacement therapy patch and solve the possible problems they may encounter in using nicotine replacement therapy patch in a timely manner?

Conditions

• Smoking Cessation

Interventions

OTHER

Nicotine Replace Therapy (NRT) sampling

The intervention involves a Zoom/WhatsApp meeting or face-to-face session with a trained counselor who introduces NRT use, possible side effects, and patch dosage based on a previous RCT guide. An online intervention pack with a pamphlet and 1-week free NRT sample (14mg or 21mg patch) is mailed to participants. After 1 week, the counselor follows up. If participants need more patches, an additional pack is mailed, and they are advised to obtain further patches from smoking cessation services or pharmacies. NRT patch users may experience skin reactions, insomnia, or vivid dreams; if severe side effects occur, they are asked to stop using NRT.

BEHAVIORAL

Simple exercise education (SEE)

All participants will be given a handgrip at study enrolment. The SEE includes a Zoom/WhatsApp meeting or face-to-face session including 1) watching a 5-minute video (www.youtube.com/watch?v=mZex2Wwy3fU) showing a chair professor of public health demonstrating the 10s-E, including the simple exercises with and without handgrip. The video also encourages participants to 1) follow the exercise instructions during the video demonstration; 2) perform the exercises whenever they experience craving or an urge to smoke during the quitting process; and 3) increase their exercise frequency and intensity as much as possible, which may also increase their grip strength. Participants will also receive a leaflet with exercise instructions and motivational messages.

OTHER

Chat-based instant messaging

Participants will receive individualized chat-based encouragement and support messages about motivation and preparation for quit attempts using WhatsApp for 8 weeks. A trained smoking cessation counsellor will have real-time (synchronous), one-to-one interaction with the participants and provide personalized motivational, behavioural support according to the participants' needs. The conversation intensity will be flexible and depends on the participant. The conversation will also be integrated with brief advice using the Behaviour Change Techniques (BCTs) (18) and the AWARD (Ask, Warn, Advise, Refer, Do-it-again) intervention model (11). The intervention protocol will be similar as that in our previous RCT on CBIM (19). For participants who receive the SEE and NRTS, the trained counsellor shall follow-up on their compliance and provide adequate advice in adhering to these interventions.

OTHER

Chatbot for smoking cessation

The information and access to the chatbot will be introduced to participants. Through the chatbot service, participants shall access to practical information on smoking cessation 24 hours at any time, such as details on cessation services and skills for tackling cravings. By using the second-generation chatbot, participants could receive personalized risk information and recommendations for smoking cessation, as well as reach to a counsellor through WhatsApp live chat for urgently needed advice.

Sponsors & Collaborators

• Health and Medical Research Fund

  collaborator OTHER_GOV

• The University of Hong Kong

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

HEALTH_SERVICES_RESEARCH

Masking

SINGLE

Model

FACTORIAL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2023-06-01

Primary Completion

2024-01-31

Completion

2024-01-31

Countries

• Hong Kong

Study Locations