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New program aims to help parents quit smoking and shield kids from secondhand smoke

NCT ID NCT06127589

Disease control 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 study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests a program that combines brief advice, nicotine replacement therapy (like patches or gum), and text-message support to help smoking parents quit. The goal is to reduce children's exposure to secondhand smoke. About 1,200 smoking parents in Hong Kong who live with children aged 12 or under will participate. The program's success will be measured by whether participants can stay smoke-free, confirmed by breath and saliva tests.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Nicotine Replacement Therapy (NRT)
What this could lead to
If successful, this could provide an effective, scalable program to help smoking parents quit, reducing health risks for both them and their children.
What could go wrong
This is a behavioral intervention trial with no blinding, so results may be influenced by participant expectations. Success depends on long-term adherence, which can be challenging.

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

About 1,200 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2024

Expected to finish

Sep 2027

An estimate. End dates often move.

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

18 years and older

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: * Hong Kong residents aged 18 or above * Smoke at least 1 tobacco stick (includes HTP) per day or use e-cigarette daily in the preceding 3-month and verified by exhaled carbon monoxide level of 4ppm (parts per million) or above, assessed by a validated Carbon monoxide Smokerlyzer® * Living with at least one child of primary 6 or below (aged 12 or below) * Living with at least one non-smoking family member * Living in deprived households (monthly household income of less than the median of household monthly income in Hong Kong, HK$ 28,000, or living in subdivided flats or social housing) * Able to communicate in Chinese (including reading Chinese in IM) * Able to use the instant messaging tool (e.g., WhatsApp, WeChat) for communication Exclusion Criteria: * Those who have communication barriers (either physically or cognitively) * Those who are currently participating in other smoking cessation programmes or services

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Conditions

The condition(s) this trial relates to.

nicotine dependence Smoking Cessation

As listed by the trial registrant

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

Second hand tobacco smoke Smoking cessation

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • The University of Hong Kong

    RECRUITING

    Hong Kong, China

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