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

Hospital Authority, Hong Kong3,826 enrolled

Overview

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.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Masking

SINGLE

Enrollment

3,826

Conditions

Smoking Cessation

Interventions

Reduction Intervention + Adherence InterventionPROCEDURE

Reduction InterventionBEHAVIORAL

controlPROCEDURE

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

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

Locations (3)

HAHO

Hong Kong, China

Hong Kong Council on Smoking and Health

Hong Kong, China

The University of Hong Kong

Hong Kong, China

Outcomes

Primary Outcomes

quit rate

Time frame: 6 months

Reduction Rate (reduction of cigarette consumption by at least 50% compared with baseline)

Time frame: 6 months

Adherence Rate to NRT

Time frame: 4 weeks

Secondary Outcomes

Validated quit rate (by measuring exhaled CO and urinary cotinine level)

Time frame: 6 months

Quit rate without validation

Time frame: 1 month

self-reported use of NRT for at least 4 weeks or 8 weeks, without cotinine validation

Time frame: 1 month / 3 month

Data from ClinicalTrials.gov

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