Gum chewers may kick the habit: new study tests xylitol for smoking cessation
NCT ID NCT07240545
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether chewing xylitol gum for 4 weeks, along with text reminders, helps daily smokers cut down or quit. About 134 Hong Kong adults who smoke at least one cigarette daily will be split into two groups: one gets the gum and support, the other gets brief advice only. The goal is to see if the gum makes quitting easier and if people find it acceptable.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 134 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Nov 2025
An estimate. Start dates often move.
- Expected to finish
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Sep 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * 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 * Capable of using instant messaging tools (e.g., WhatsApp, WeChat) for communication Exclusion Criteria: * Have communication barriers (either physical or cognitive) * Currently participating in other smoking cessation programs or services
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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School of Nursing, The University of Hong Kong
Hong Kong, Hong Kong
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Other studies related to the condition(s) this trial covers.
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