Xylitol Gum for Promoting Smoking Cessation

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorThe University of Hong Kong

About this trial

The goal of this clinical trial is to learn if 4-week xylitol gum intervention works to promote smoking cessation in daily smokers. It will also learn about the feasibility and acceptability of using xylitol gum. The main questions it aims to answer are:

(1)Does xylitol gum help to reduce cigarette consumption and promote smoking cessation?

Researchers will compare 4-week xylitol gum intervention to the brief advice to see if xylitol gum works to promote smoking cessation.

Participants in the intervention group will receive a 3-month behavioral intervention comprising a 4-week xylitol gum aligned with 12 weeks of instant reminder message support.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Residents of Hong Kong aged 18 or above who smoke at least 1 cigarette per day over the past 3 months

Have the habit of chewing gum or are willing to use chewing gum

Can communicate in Cantonese (including reading Chinese)

Express an intention to quit or reduce smoking

Disqualifiers

Have communication barriers (either physical or cognitive)

Currently participating in other smoking cessation programs or services

Trial design

Design model

Parallel

Treatments tested in this trial

  • Brief smoking cessation advice

    Behavioral

    Brief smoking cessation advice guided by the validated AWARD model (Assess, Warning, Advice, Refer, and Do-it-again).

  • Warning leaflet

    Behavioral

    The warning leaflet contains pictorial depictions of the adverse health effects of smoking.

  • Self-help smoking cessation booklet

    Behavioral

    The self-help smoking cessation booklet includes commonly used smoking cessation strategies.

  • 4-week xylitol gum intervention

    Behavioral

    Participants in the intervention group will receive 4 packs of xylitol gum (approximately US $2 per pack) at baseline and will be encouraged to use it when they experience cravings.

  • Instructional leaflet

    Behavioral

    The instructional leaflet includes the potential benefits of xylitol gum for smoking cessation, recommended timing and dosage for use, and appropriate disposal of used gum.

  • 12-week instant message support

    Behavioral

    Approximately 24 reminder messages (two per week), developed based on the Love and Care Approach framework, will be delivered over the 12-week period to reinforce motivation and adherence.

Treatment groups

134 Participants
are divided into 2 treatment groups
Group A: Intervention groupExperimental treatment 6 interventions
Group B: Control groupActive comparator 3 interventions

Trial outcomes

Primary outcomes

1

Biochemically validated smoking abstinence

Verified by exhaled carbon monoxide \<4 ppm and salivary cotinine \<30 ng/ml

Time frame
6-month follow-up

Secondary outcomes

1

Biochemically validated smoking abstinence

Verified by exhaled carbon monoxide \<4 ppm and salivary cotinine \<30 ng/ml

Time frame
3-month follow-up
2

Self-report 7-day point-prevalence abstinence

By asking a question, "Have you smoked (even a puff) during the past 7 days?"

Time frame
1-, 3-, and 6-months follow-ups
3

Smoking reduction

Defined by a reduction of≥50% in daily cigarette consumption compared with baseline.

Time frame
1-, 3-, and 6-months follow-ups
4

Quit attempt

By asking a question, "Have you attempted to stop smoking completely for at least 24 hours in the past 7 days?"

Time frame
1-, 3-, and 6-months follow-ups

Other outcomes

1

Number of pieces of xylitol gum used

Total daily count used during the intervention period

Time frame
1- and 3-month follow-ups
2

Frequency of using xylitol gum

Average number of chewing episodes per day.

Time frame
1- and 3-month follow-ups
3

Duration of use

Average time spent chewing each piece.

Time frame
1- and 3-month follow-ups

Sponsors and contacts

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This trial is not recruiting at the moment. You can still explore other options: