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

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00563329
First Posted: November 26, 2007
Last Update Posted: October 23, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Collaborator:
The University of Hong Kong
Information provided by:
Hospital Authority, Hong Kong
  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
Intervention Model: Single Group Assignment
Masking: Single
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

Information from the National Library of Medicine

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, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
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
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): 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
The University of Hong Kong
Investigators
Principal Investigator: TH Lam, Prof Department of Community Medicine, Faculty of Medicine, The University of Hong Kong
  More Information

Additional Information:
ClinicalTrials.gov Identifier: NCT00563329     History of Changes
Other Study ID Numbers: UW 03-103 T/103
HARECCTR0500051
First Submitted: November 21, 2007
First Posted: November 26, 2007
Last Update Posted: October 23, 2013
Last Verified: October 2013

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