Brief Behavioural Economic Intervention for Smoking Cessation

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorThe University of Hong Kong

About this trial

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.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

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

Disqualifiers

Participating in another smoking cessation programme or using any smoking cessation drug or nicotine replacement therapy

Trial design

Design model

Parallel

Treatments tested in this trial

  • Brief cessation advice

    Behavioral

    Participants will receive brief cessation advice following the AWARD (ask, warn, advise, refer, do-it-again) model: A: Ask about the tobacco use status; W: Warn about the hazards of tobacco use; A: Advise the smokers to quit; R: Refer the smokers to cessation services; D: Do-it-again

  • Opt-out active referral

    Behavioral

    Participants will be automatically referred to a smoking cessation service upon joining the trial, unless they choose to opt out. Contacts of participants will be delivered to a service provider of their choice or based on their living district and preferred treatment modality

  • Behavioral economic mobile messaging

    Behavioral

    Participants will receive behavioural economics-informed messages via mobile instant messaging for 3 months

  • Opt-in active referral

    Behavioral

    Participants will be offered a referral to a smoking cessation service. Contacts of participants who opt-in will be delivered to a service provider of their choice

Treatment groups

1,017 Participants
are divided into 3 treatment groups
Group A: Opt-out+ groupExperimental treatment 3 interventions
Group B: Opt-out groupExperimental treatment 2 interventions
Group C: Opt-in groupActive comparator 2 interventions

Trial outcomes

Primary outcomes

1

Biochemically validated tobacco abstinence

Verified by an exhaled carbon monoxide level of \<4 parts per million and a negative salivary cotinine test

Time frame
6 months after randomisation

Secondary outcomes

1

Biochemically validated tobacco abstinence

Verified by an exhaled carbon monoxide level of \<4 parts per million and a negative salivary cotinine test

Time frame
3 months after randomisation
2

Self-reported 7-day point-prevalence tobacco abstinence

Tobacco abstinence in the past 7 days

Time frame
3 months after randomisation
3

Self-reported 7-day point-prevalence tobacco abstinence

Tobacco abstinence in the past 7 days

Time frame
6 months after randomisation
4

Self-reported 24-hour quit attempt

Tobacco abstinence for at least 24 hours

Time frame
3 months after randomisation

Other outcomes

1

Self-reported reduction of tobacco consumption

Smoking reduction by at least half of the baseline daily number of cigarettes

Time frame
3 months after randomisation
2

Self-reported reduction of tobacco consumption

Smoking reduction by at least half of the baseline daily number of cigarettes

Time frame
6 months after randomisation

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

The University of Hong Kong

Lead sponsor

Hong Kong Council on Smoking and Health

Collaborator