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

This study has been completed.
Sponsor:
Collaborator:
Dept of Community Medicine, HKU
Information provided by:
Hospital Authority, Hong Kong
ClinicalTrials.gov Identifier:
NCT00563329
First received: November 21, 2007
Last updated: October 22, 2013
Last verified: October 2013
  Purpose

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.


Condition Intervention
Smoking Cessation
Procedure: Reduction Intervention + Adherence Intervention
Behavioral: Reduction Intervention
Procedure: control

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Single Blind
Official Title: Smoking Reduction Intervention for Smokers Not Willing to Quit Smoking: a Randomised Control Trial

Resource links provided by NLM:


Further study details as provided by Hospital Authority, Hong Kong:

Primary Outcome Measures:
  • 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 Outcome Measures:
  • 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 ]

Estimated Enrollment: 3826
Study Start Date: October 2004
Study Completion Date: July 2006
  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Criteria

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
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00563329

Locations
China
HAHO
Hong Kong, China
Hong Kong Council on Smoking and Health
Hong Kong, China
The University of Hong Kong
Hong Kong, China
Sponsors and Collaborators
Hospital Authority, Hong Kong
Dept of Community Medicine, HKU
Investigators
Principal Investigator: TH Lam, Prof Department of Community Medicine, Faculty of Medicine, The University of Hong Kong
  More Information

No publications provided

ClinicalTrials.gov Identifier: NCT00563329     History of Changes
Other Study ID Numbers: UW 03-103 T/103, HARECCTR0500051
Study First Received: November 21, 2007
Last Updated: October 22, 2013
Health Authority: Hong Kong: Ethics Committee

Keywords provided by Hospital Authority, Hong Kong:
Smokers who are not willing to quit in the near future but intend to reduce smoking

ClinicalTrials.gov processed this record on October 23, 2014