A project to help parents quit smoking and protect children from secondhand smoke

An Integrated Smoking Cessation Intervention Model of Brief Advice, Nicotine Replacement Therapy and Mobile Health Support for Smoking Parents to Increase Abstinence and Protect Children From Tobacco Smoke Exposure: A Randomized Controlled Trial

Not applicable Interventional The University of Hong Kong · NCT06127589

This study is testing a new program to help parents who smoke quit for good, so they can protect their kids from secondhand smoke.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment1200 (estimated)
Ages18 Years and up
SexAll
SponsorThe University of Hong Kong Academic / other
Locations1 site (Hong Kong)
Trial IDNCT06127589 on ClinicalTrials.gov

What this trial studies

This project tests an integrated intervention designed to help adult daily smokers living with children and non-smoking partners quit smoking. The intervention includes brief cessation advice, Nicotine Replacement Therapy, and instant messaging support, compared to a waitlist control group. The study focuses on families from disadvantaged backgrounds in Hong Kong, aiming to increase smoking cessation rates and reduce children's exposure to secondhand smoke. It also seeks to raise awareness among parents about their children's exposure levels and promote the adoption of this intervention model by local health organizations.

Who should consider this trial

Good fit: Ideal candidates are Hong Kong residents aged 18 or older who smoke daily, live with children aged 12 or below, and reside in deprived households.

Not a fit: Patients who have communication barriers or are currently enrolled in other smoking cessation programs may not benefit from this study.

Why it matters

Potential benefit: If successful, this project could significantly reduce smoking rates among parents and lower children's exposure to harmful secondhand smoke.

How similar studies have performed: Other studies have shown success with family-based smoking cessation interventions, indicating potential for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
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

Where this trial is running

Hong Kong

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Smoking CessationSecond Hand Tobacco SmokeSecond Hand Smoke ExposureChildren HealthMobile Health InterventionNicotine Replacement TherapyFamily-based Intervention
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.