ClinicalTrials.gg
Not yet recruitingNCT07803354Updated Sep 9, 2026

Metaphor-Based Smoking Cessation Intervention

An interventional study of Metaphor-based smoking cessation intervention and 5A's/5R's advice in Smoking Cessation and Mobile Health, sponsored by Beijing Normal University. Not yet recruiting at 1 site in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-09.

Sponsored by Beijing Normal University · Not applicable, Interventional, and Health services research

Phase
Not applicable
Study type
Interventional
Enrollment
200
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study aims to evaluate the effectiveness and participant experiences of a WeChat-delivered, metaphor-based smoking cessation intervention.

Read the detailed description

This randomized controlled trial evaluates a WeChat-delivered, metaphor-based smoking cessation intervention. Participants in the intervention group will receive staged cessation messages that use metaphors to explain smoking urges, nicotine dependence, behavior change, coping strategies, and relapse prevention. The intervention will also include self-monitoring, personalized feedback, and a personalized journey map to help participants recognize their progress during the cessation process.

Participants in the control group will receive brief smoking cessation advice. The study will compare the two groups in terms of smoking cessation outcomes. It will also assess participants' perceptions of the intervention, including the usefulness and comprehensibility of the metaphors, willingness to engage with the intervention, immersion in the cessation process, perceived support, and overall satisfaction.

02

Conditions studied

  • Smoking Cessation
  • Mobile Health

Keywords

  • Metaphor-based intervention
  • Smoking cessation
  • Tobacco use
03

In context

Smoking Cessation

1,581 studies on the registry are indexed under Smoking Cessation; 198 are open to participants now.

This study's planned enrollment of 200 is above the median of 164 across 1,423 interventional studies indexed under Smoking Cessation.

Browse Smoking Cessation studies →

Lead sponsor

Beijing Normal University is the lead sponsor of 31 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. aged 18 and above, reside in Zhuhai for the next 6 months;
  2. smoke at least 1 cigarette or use e-cigarettes daily;
  3. Having a smartphone and a WeChat account, being able to use WeChat skillfully.

Exclusion criteria

Exclusion Criteria:

  1. Smokers who have communication barrier (either physically or cognitively);
  2. Smokers who are currently participating in other SC programmes or services
05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
200 participants (estimated)

Study arms

  • Experimental
    Metaphor-based intervention group

    Metaphor-based smoking cessation intervention + 5A's/5R's advice + health warning leaflet

    Behavioral: Metaphor-based smoking cessation intervention · Behavioral: 5A's/5R's advice · Other: Health warning leaflet

  • Active comparator
    Control group

    5A's/5R's advice + health warning leaflet

    Behavioral: 5A's/5R's advice · Other: Health warning leaflet

Interventions

  • BehavioralMetaphor-based smoking cessation intervention

    Participants will receive a 100-day, WeChat-delivered smoking cessation intervention using metaphors such as "fog" and "restart" to describe smoking urges, nicotine dependence, and the process of behavior change. The intervention will provide staged messages on smoking-trigger identification, self-monitoring, action planning, coping strategies, environmental modification, social support, and relapse prevention, together with personalized feedback and a personalized journey map to help participants review their cessation experiences and progress.

  • Behavioral5A's/5R's advice

    The 5A's approach (Ask, Advise, Assess, Assist, and Arrange) will be used for participants who are ready to quit, and the 5R's approach (Relevance, Risks, Rewards, Roadblocks, and Repetition) will be used for participants who are not ready to quit.

  • OtherHealth warning leaflet

    The health warning leaflet provides essential information on the dangers of secondhand and thirdhand smoke. It outlines how exposure to these forms of smoke can harm both smokers and non-smokers, particularly children, by increasing the risk of respiratory illnesses and other health issues.

06

What researchers measure

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

  5. Consent rate

    the percentage of eligible smokers who agree to participate out of the total number of eligible smokers

    Time frame: baseline

  6. Intervention Engagement

    Participants' engagement with the intervention, including self-reported reading of WeChat cessation messages, interaction with the health assistant, and viewing of the personalized journey map.

    Time frame: 3 months follow-up

  7. Perceived Usefulness of Metaphors

    Participants' perceived usefulness of the metaphors used in the intervention, assessed using a researcher-developed 7-point Likert-type agreement scale ranging from 1 (strongly disagree) to 7 (strongly agree). Higher scores indicate greater perceived usefulness of the metaphors.Responses will be assessed using a 7-point Likert scale.

    Time frame: 3 months follow-up

  8. Narrative Engagement in the Smoking Cessation Journey

    Participants' engagement with the journey-based intervention, including whether the staged challenge design increased their motivation to persist, whether they were interested in subsequent stages, and whether they felt immersed in the smoking cessation journey. Responses will be assessed using a researcher-developed 7-point Likert-type agreement scale ranging from 1 (strongly disagree) to 7 (strongly agree). Higher scores indicate greater engagement with the journey-based intervention.

    Time frame: 3 months follow-up

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Sep 2026; primary completion for Jun 2027, 9 months later.

Of 546 non-industry interventional studies with no phase under Smoking Cessation, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 45. This study's planned 9 months is below that.

Counting every sponsor, half of 563 studies reached it within 24 months; a quarter within 12 and three quarters within 44.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 31, 2026
First posted
Sep 3, 2026
StartEst.
Sep 1, 2026
Primary completionEst.
Jun 30, 2027
CompletionEst.
Dec 31, 2027
Last update
Sep 9, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 9, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07803354
Lead sponsor
Beijing Normal University
Responsible party
Sponsor
First posted
Sep 3, 2026
Start date
Sep 1, 2026 (estimated)
Primary completion
Jun 30, 2027 (estimated)
Completion
Dec 31, 2027 (estimated)
Last update
Sep 9, 2026

Study contacts

Xue Weng
Contact
xueweng@bnu.edu.cn
3621259
Xue Weng
principal investigator · Beijing Normal University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.

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