Smoking Cessation Program for the Older Smokers

NCT06234475 | Active Not Recruiting

• 1 other identifier: SCFO
• Study Type: interventional
• Target: 1,200
• Locations: 1 country
• Sites: 1

Brief Summary

This study aims to assess the effect of mobile health (mHealth) support or financial incentives and their interactive intervention effect on smoking cessation (SC) in old smokers in Hong Kong (HK).

Conditions

Telemedicine; Motivation; Smoking Cessation; Aged

Keywords

Smoking Cessation; Low-income older smokers; Mobile health; Incentive; Real-time personalized support; Factorial study

Outcome Measures

Primary Outcomes (1)

• The biochemically validated smoking abstinence

  Smoking abstinence is defined by exhaled CO \< 4 ppm and salivary cotinine \<30 ng/ml

  the 6-month follow-ups

Secondary Outcomes (8)

• The biochemically validated smoking abstinence

  the 3- and 12-month follow-ups

• Self-reported 7-day point-prevalence abstinence

  3-, 6-, and 12-month follow-ups

• Self-reported smoking change

  3-, 6-, and 12-month follow-ups

• Self-reported self-efficacy of quitting

  3-, 6-, and 12-month follow-ups

• Self-reported quit attempts

  3-, 6-, and 12-month follow-ups

Study Arms (4)

Mobile health group

EXPERIMENTAL

Smartphone mHealth support for smoking cessation by scheduled age-friendly multimedia e-messages and real-time personalized behavioral supports for 3 months.

Behavioral: Mobile health support

Financial incentive group

EXPERIMENTAL

An escalating incentive scheme for smoking abstinence: HK$500 for using any SC services within 6 months, and HK$1000, 1500 and 2000 for biochemically validated abstinence at 3-, 6- and 12-month, respectively.

Behavioral: Financial incentive

Combined intervention group

EXPERIMENTAL

Smartphone mHealth support for smoking cessation by scheduled age-friendly multimedia e-messages and real-time personalized behavioral supports for 3 months and an escalating incentive scheme for smoking abstinence: HK$500 for using any SC services within 6 months, and HK$1000, 1500 and 2000 for biochemically validated abstinence at 3-, 6- and 12-month, respectively.

Behavioral: Combine intervention

Control group

ACTIVE COMPARATOR

Brief advice

Behavioral: Control group

Interventions

Combine intervention BEHAVIORAL

1. Brief smoking cessation advice 2. Health warning leaflet 3. Smoking cessation information booklet 4. Referral card 5. E-messages on SC-related information and details on community SC services for 3 months 6. Acceptance and Commitment Therapy based real-time Chat-based support for 3 months 7. An escalating incentive scheme for smoking abstinence: HK$500 for using any SC services within 6 months, and HK$1000, 1500 and 2000 for biochemically validated abstinence at 3-, 6- and 12-month, respectively.

Combined intervention group

Control group BEHAVIORAL

1. Brief smoking cessation advice 2. Health warning leaflet 3. Smoking cessation information booklet 4. Referral card 5. E-messages on SC-related information and details on community SC services for 3 months for those without abstinence at 12-month follow-up after follow-ups ending 6. Acceptance and Commitment Therapy based rear-time Chat-based support for 3 months for those without abstinence at 12-month follow-up after follow-ups ending

Control group

Mobile health support BEHAVIORAL

1. Brief smoking cessation advice 2. Health warning leaflet 3. Smoking cessation information booklet 4. Referral card 5. E-messages on SC-related information and details on community SC services for 3 months 6. Acceptance and Commitment Therapy based real-time Chat-based support for 3 months

Mobile health group

Financial incentive BEHAVIORAL

1. Brief smoking cessation advice 2. Health warning leaflet 3. Smoking cessation information booklet 4. Referral card 5. An escalating incentive scheme for smoking abstinence: HK$500 for using any SC services within 6 months, and HK$1000, 1500 and 2000 for biochemically validated abstinence at 3-, 6- and 12-month, respectively.

Financial incentive group

Eligibility Criteria

• Age: 60 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Smokers aged 60 years or above;
• Currently smoking cigarettes or alternative tobacco products daily in the past 3 months with an exhaled carbon monoxide (CO) level ≥4ppm or salivary cotinine \>30 ng/ml;
• Have a mobile phone that can receive short message/messaging Service (SMS) or instant messages (IM);
• Having a household monthly income lower than the median income of domestic household in Hong Kong
• \. Hong Kong residents able to communicate in Chinese.

You may not qualify if:

• Smokers not physically nor mentally fit for communication;
• Smokers currently using SC services;
• Hospitalized smokers;
• Not having a mobile phone or perceived difficulty in using mobile phone or communication Apps

Sponsors & Collaborators

• The University of Hong Kong: lead
• University Grants Committee, Hong Kong: collaborator

Study Sites (1)

School of Nursing, The University of Hong Kong

Hong Kong, Hong Kong

Location

MeSH Terms

Conditions

Smoking Cessation

Interventions

Control Groups

Condition Hierarchy (Ancestors)

Health Behavior; Behavior

Intervention Hierarchy (Ancestors)

Epidemiologic Research Design; Epidemiologic Methods; Investigative Techniques; Research Design; Methods

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: FACTORIAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: January 22, 2024
• First Posted: January 31, 2024
• Study Start: February 20, 2024
• Primary Completion (Estimated): November 1, 2026
• Study Completion (Estimated): November 1, 2026
• Last Updated: December 15, 2025

Record last verified: 2025-12

Data Sharing

• IPD Sharing: Will not share

Locations

HK (1)