Smoking Reduction Intervention for Smokers Not Willing to Quit Smoking: a Randomised Control Trial

Not Applicable

Completed

• Conditions: Smoking Cessation

• Registration Number: NCT00563329
• Lead Sponsor: Hospital Authority, Hong Kong

Brief Summary

The aims of this study are (1) to examine the effect of smoking reduction intervention (reduction counseling and nicotine replacement therapy, NRT) (a) on smoking cessation and (b) on reducing daily cigarette consumption among smokers not willing to quit smoking but want to reduce smoking, and (2) to examine the effect of adherence intervention in producing a higher (a) adherence rate, (b) reduction rate, and (c) quit rate.

Detailed Description

Not available

Study Timeline

• Study Start: 2004-10
• Study Completion: 2006-07
• Study First Submitted: 2007-11-21
• Study First Submitted QC: 2007-11-23
• Study First Posted: 2007-11-26
• Status Verified: 2013-10
• Last Update Submitted: 2013-10-22
• Last Update Posted: 2013-10-23

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 3826

Inclusion Criteria

• Age 18 or above
• Ethnic Chinese male or female
• Smokes at least 2 cigarettes per day
• Have no intention to quit in the near future
• Intends to reduce smoking in the next 7 days
• Has no contraindication to NRT

Exclusion Criteria

• Subjects who are psychologically or physically unable to communicate
• Children and teenagers (age below 18)
• Pregnant or intention to become pregnant within the next 6 months
• Those on regular psychotropic medications and in the presence of any serious health problems that may make them unsuitable for using NRT, such as recent stroke, palpitation, or other life threatening conditions

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Primary Outcome Measures

Name	Time	Method
quit rate	6 months
Adherence Rate to NRT	4 weeks
Reduction Rate (reduction of cigarette consumption by at least 50% compared with baseline)	6 months

Secondary Outcome Measures

Name	Time	Method
Quit rate without validation	1 month
Validated quit rate (by measuring exhaled CO and urinary cotinine level)	6 months
self-reported use of NRT for at least 4 weeks or 8 weeks, without cotinine validation	1 month / 3 month

Trial Locations

Locations (3)

HAHO; 🇨🇳 Hong Kong, China

Hong Kong Council on Smoking and Health; 🇨🇳 Hong Kong, China

The University of Hong Kong; 🇨🇳 Hong Kong, China