AI-powered Chatbot vs. Human Counselors in Smoking Cessation

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorBeijing Normal University

About this trial

This study aims to explore the feasibility and preliminary effectiveness of AI-powered chatbot support in community smokers.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

aged 18 and above, reside in Zhuhai for the next 6 months;

smoke at least 1 cigarette or use e-cigarettes daily;

Having a smartphone and a WeChat account, being able to use WeChat skillfully.

Disqualifiers

Smokers who have communication barrier (either physically or cognitively);

Smokers who are currently participating in other SC programmes or services

Trial design

Design model

Parallel

Treatments tested in this trial

  • 5A's/5R's advice

    Behavioral

    5A's (Ask, Advise, Assess, Assist, Arrange) for smokers who are ready to quit, and 5R's (relevance, risks, rewards, roadblocks, and repetition) for smokers who are not ready to quit.

  • Brief leaflet on health warning and smoking cessation

    Other intervention

    The contents of the leaflet include the absolute risk of smoking, diseases caused by active and second-hand smoking, horrible pictorial warnings of the health consequences of active and second-hand smoking, and the benefits of quitting.

  • Self-help smoking cessation booklet

    Other intervention

    The contents include information about the benefits of quitting, methods to quit, how to handle withdrawal symptoms, misperceptions of quitting, etc.

  • AI-powered chatbot support

    Behavioral

    Participants will receive three months of AI-powered chatbot, equipped with personalized interactions and real-time support, via WeChat.

  • Counselor individual support

    Behavioral

    Participants will receive three months of counselor-led individual support via WeChat. The regular messages and instant messaging on psychosocial support aim to provide cessation advice, increase self-efficacy and confidence, and social support and behavioral capacity of quitting.

Treatment groups

300 Participants
are divided into 3 treatment groups
Group A: AI support groupExperimental treatment 4 interventions
Group B: Counselor support groupExperimental treatment 4 interventions
Group C: Control groupActive comparator 3 interventions

Trial outcomes

Primary outcomes

1

Biochemical validated quit rate at 6 months follow-up

The primary outcomes are biochemically validated quit rate (exhaled carbon monoxide \< 4 ppm or salivary cotinine \< 30 ng/ml)

Time frame
6 months follow-up

Secondary outcomes

1

Biochemical validated quit rate at 3 months follow-up

biochemically validated quit rate (exhaled carbon monoxide \< 4 ppm or salivary cotinine \< 30 ng/ml)

Time frame
3 months follow-up
2

Self-reported 7-day point prevalence quit rate

Self-reported 7-day point prevalence quit rate in the two groups

Time frame
3 and 6 months follow-up
3

Smoking reduction rate

Rate of smoking reduction by at least half of baseline amount in the two groups

Time frame
3 and 6 months follow-up
4

Eligibility rate

the percentage of eligible smokers out of the total number of smokers screened

Time frame
baseline

Other outcomes

Sponsors and contacts

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