The "Quit-for-Kids" Project: to Increase Abstinence and Protect Children From Tobacco Smoke Exposure
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
1 other identifier
interventional
1,200
1 country
1
Brief Summary
This project aims to test the effectiveness of an integrated intervention of brief cessation advice (AWARD), Nicotine Replacement Therapy, and Instant Messaging support compared with waitlist control participants among adult daily smokers who lived with their children and non-smoking partners.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Feb 2024
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 10, 2023
CompletedFirst Posted
Study publicly available on registry
November 13, 2023
CompletedStudy Start
First participant enrolled
February 5, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 31, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
September 30, 2027
May 4, 2026
April 1, 2026
3.2 years
October 10, 2023
April 28, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Biochemically validated abstinence
Defined as exhaled carbon monoxide level \<4ppm and saliva cotinine level ≤30ng/ml
6-month after recruitment
Secondary Outcomes (13)
Self-reported 7-day point prevalence quit rate (for smokers)
3- and 6-month after recruitment
Self-reported reduction rate (for smokers)
3- and 6-month after recruitment
Self-reported intention to quit (for smokers)
3- and 6-month after recruitment
Smoking cessation service use (for smokers)
3- and 6-month after recruitment
Self-rated health (for smokers)
3- and 6-month after recruitment
- +8 more secondary outcomes
Study Arms (2)
Brief cessation advice + Nicotine replacement Therapy + Instant Messaging + Financial Incentives
EXPERIMENTALParticipants will receive a special designed evidence-based intervention using health advice, behavioral and pharmacological support, mobile health technologies, and awareness building (highlight harms) based on the biofeedback results of SHS exposure in the child. A selected sample of 50 families will receive environmental assessment-derived intervention, including results interpretation and health advice, which will be provided via phone calls for the 50 families within 1 week after the data collection.
Brief cessation advice (AWARD) + Waitlist for same intervention
ACTIVE COMPARATORParticipants in the control group will receive the same AWARD brief advice model, self-help booklet at baseline, and financial incentives for validated abstinence at 3- and 6-month follow-up. After the 6-month follow-up, participants who continued to smoke will receive the remaining intervention components: 1-week sampling of NRT and 3 months instant messaging chat-based personalized psychosocial and behavioural counselling for quitting. Participants who validated abstinence at the 12 months or actively engaged in mobile Health counselling will also receive the financial incentives of HK$ 500 and HK$ 200, respectively (waitlist control). Similar to the Intervention group, environmental assessment derived intervention, including results interpretation and health advice, will be provided via phone calls for the 50 families within 1 week after the data collection.
Interventions
Ask about smoking history, Warn about the high risk of smoking, Advise to quit as soon as possible, Refer to the smoking cessation services, and Do it again (if the smokers refuse to set a quit date).
1-week sampling of Nicotine Replacement Therapy (NRT) will be provided to support quit attempt. Full pharmacological treatment (12-week) will be available if needed.
Chat-based mHealth personalized psychosocial and behavioural counselling (smoking cessation and SHS exposure reduction messages will be derived from previously tested interventional studies) using baseline children health and biofeedback data to support quitting throughout the intervention period of 3 months.
A financial incentive (vouchers) of HK$ 500 will be provided for biochemically validated smoking abstinence at 3- and 6-month follow-up. Considering a possibly low engagement rate of the smokers in mHealth-based support (17% in our previous trial, non-engagement mostly due to busy work), additional HK$ 200 will be provided for participants who actively engaged in the mHealth counselling (defined by have discussed quitting process for \>2 times) at 3-month follow-up.
A well-designed self-help booklet will be provided to guide and provide detailed information on smoking cessation. The contents include information about the benefits of quitting, smoking and diseases, methods to quit, how to handle withdrawal symptoms, declaration of quitting, etc.
In a selected subgroup of 50 families with an additional signed consents, four home visits will be done to: 1. Setup an indoor air quality (IAQ) monitor to collect 24hr air quality data (2 weeks), 2. Collect the monitor for data retrieval, 3. Setup the monitor at 6 months follow-up (2 weeks), 4. Collect the monitor for data retrieval. Environmental assessment derived intervention, including results interpretation and health advice, will be provided via phone calls for the 50 families within 1 week after the data collection.
Eligibility Criteria
You may qualify if:
- 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
You may not qualify if:
- Those who have communication barriers (either physically or cognitively)
- Those who are currently participating in other smoking cessation programmes or services
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
The University of Hong Kong
Hong Kong, China
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- HEALTH SERVICES RESEARCH
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
October 10, 2023
First Posted
November 13, 2023
Study Start
February 5, 2024
Primary Completion (Estimated)
March 31, 2027
Study Completion (Estimated)
September 30, 2027
Last Updated
May 4, 2026
Record last verified: 2026-04