Semi-personalized IM Smoking Cessation Interventions

Not Applicable

Completed

• Conditions: Smoking Cessation
• Interventions: Behavioral: Instant Messaging (IM); Behavioral: AWARD advice; Behavioral: NRT sampling; Behavioral: Active referral; Behavioral: SMS messaging

• Registration Number: NCT03574077
• Lead Sponsor: The University of Hong Kong

Brief Summary

Text messaging can provide smokers with quitting methods, information on available smoking cessation (SC) services and social support. This kind of intervention was proven to be effective for smoking cessation. Instant messaging (IM), by sending text and pictures, could provide users with better instantaneous and inexpensive support in their time of need. However, IM intervention is understudied in smoking cessation or other health-related areas to our knowledge, its approaches and efficacy warrant further investigation. This study aims to assess the effect of the combined intervention (nicotine replacement therapy sampling, active referral, and brief advice plus a supportive semi-personalized instant messaging advice) on smoking cessation and to assess the effect of the above interventions on secondary outcomes, including quit intention and attempts, smoking reduction, level of nicotine dependence, use of nicotine replacement therapy (NRT) and SC services.

Detailed Description

Not available

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study First Submitted: 2017-11-09
• Study Start: 2017-12-27
• Study First Submitted QC: 2018-06-27
• Study First Posted: 2018-06-29
• Primary Completion: 2018-10-31
• Study Completion: 2018-10-31
• Status Verified: 2019-01
• Last Update Submitted: 2019-01-08
• Last Update Posted: 2019-01-09

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 119

Inclusion Criteria

1. Aged 18 years or above and smoked at least 1 cigarette daily;
2. Hong Kong residents able to read and speak Cantonese;
3. Exhaled carbon monoxide of 4 ppm or above, assessed by a Smokerlyzer;
4. Using a cell phone with instant messaging tool (e.g. WhatsApp, WeChat);
5. Able to use instant messaging tool (e.g. WhatsApp, WeChat) for communication;

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Exclusion Criteria

1. Have psychiatric/ psychological diseases or regular psychotropic medications; and
2. Using SC medication, NRT, other SC services or projects.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Instant messaging	NRT sampling	AWARD advice + NRT sampling + Active referral + Instant Messaging (IM)
Instant messaging	AWARD advice	AWARD advice + NRT sampling + Active referral + Instant Messaging (IM)
Instant messaging	Instant Messaging (IM)	AWARD advice + NRT sampling + Active referral + Instant Messaging (IM)
SMS messaging	NRT sampling	AWARD advice + NRT sampling + Active referral + SMS messaging
Instant messaging	Active referral	AWARD advice + NRT sampling + Active referral + Instant Messaging (IM)
SMS messaging	AWARD advice	AWARD advice + NRT sampling + Active referral + SMS messaging
SMS messaging	Active referral	AWARD advice + NRT sampling + Active referral + SMS messaging
SMS messaging	SMS messaging	AWARD advice + NRT sampling + Active referral + SMS messaging

Primary Outcome Measures

Name	Time	Method
Biochemically validated abstinence	6-month follow-up	Biochemically validated abstinence (exhaled carbon monoxide \<4 ppm and saliva cotinine \<= 10 ng/ml)

Secondary Outcome Measures

Name	Time	Method
Quit attempts	3-month and 6-month follow-up	Self-reported quit attempts after enrollment in the study
Self-reported 7-day point prevalence abstinence	3-month and 6-month follow-up	Self-reported no cigarette smoking (even a single puff) in the past 7 days
Smoking reduction	3-month and 6-month follow-up	Reduction in the number of cigarettes smoked daily by at least 50% of the baseline amount
Level of nicotine dependence	3-month and 6-month follow-up	The Heaviness of Smoking Index, a validated scale, will be used to measure the level of nicotine dependence. This scale consists of 2 questions: (1) how soon after waking up does a participant smoke the first cigarette with responses "within 5 minutes", "6-30 minutes", "31-60 minutes" and "after 60 minutes"; (2) how many cigarettes does a participant smoke in a day with responses "1-10", "11-20" "21-30" and "\>30".
SC services used	3-month and 6-month follow-up	Smoking cessation service used after enrollment in the study
NRT use	3-month and 6-month follow-up	The amount of nicotine replacement therapy (NRT) used including the sampling received at baseline, NRT received from SC services, NRT bought by participants
Readiness to quit smoking	3-month and 6-month follow-up	Readiness to quit smoking will be measured by a question asking the planned quit day based on the Transtheoretical Model with the following responses: within 7days, with 30 days, within 60 days, not yet decided.

Trial Locations

Locations (1)

School of Nursing, The University of Hong Kong; 🇭🇰 Hong Kong, Hong Kong