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Chatbot coaches youth to kick the habit

NCT ID NCT06470776

Symptom relief Sponsor: The University of Hong Kong Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether a chatbot could help young smokers (up to age 25) quit tobacco. Over 150 participants used the chatbot as part of a youth quitline program. Researchers checked how many joined, stayed, and found it useful, and measured quit rates with saliva tests. The goal was to see if a chatbot is a feasible and acceptable tool for smoking cessation.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

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

154 people

The number who actually took part.

Started

Jul 2024

Finished

Jun 2025

Lead sponsor

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

Up to 25 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Hong Kong residents aged 25 years or younger 2. Used a tobacco product in the past 30 days, including cigarettes, electronic cigarettes, heated tobacco products, etc. 3. Able to communicate in Chinese 4. Own a smartphone with internet access Exclusion Criteria: 1. Diagnosed with a mental disease or on regular psychotropic drugs, or 2. Participating in other ongoing smoking cessation studies.

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Conditions

The condition(s) this trial relates to.

nicotine dependence Smoking Cessation Tobacco Use

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Smoking cessation Tobacco use

Contacts and locations

Locations

  • HKU Youth Quitline

    Hong Kong, Hong Kong

More trials for these conditions

Other studies related to the condition(s) this trial covers.