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Completed

NCT Number: NCT00714532

Smoking Reduction and Cessation Interventions for Chinese

This study aims at developing and testing a stage-based scheduled smoking intervention that targets to encourage smokers to reduce smoking and to facilitate smoking abstinence. We hypothesize that smokers who receive the staged-based scheduled smoking intervention will be more likely to report smoking abstinence, quit attempts, and smoking reduction at 12 months.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

UCSF Langley Porter

San Francisco, California, 94143, United States

About this study

The objective of the study is to document and systematically investigate the use of smoking reduction and cessation strategies targeting Chinese American smokers at various level of readiness to quit smoking.

Using a randomized controlled study design, the experimental intervention will be compared to a control group that will receive the expert system intervention only at 3-, 6- and 12-month follow-up. The primary aim is to test the following hypotheses:

  • Participants receiving the experimental intervention will be more likely to achieve at least a 50% reduction from baseline at 3-month (end of treatment), 6- and 12-month follow-up than participants in the control condition.
  • Participants receiving the experimental intervention will be more likely to report a 24- hour quit attempt at 3-, 6- and 12-month follow-up.
  • Participants receiving the experimental intervention will be report a longer length of abstinence in their quit attempts at 3-, 6- and 12-month follow-up.
  • The experimental condition will yield a higher rate of smoking abstinence at 3-, 6- and 12-month follow-up.

The secondary aim is to examine the feasibility of the proposed intervention which will be assessed by recruitment efficiency, refusal rates, adherence, usage, safety data, and perceived helpfulness of the intervention components. In addition, analyses will be pursued to explore both short- and long-term maintenance of smoking reduction achieved, the association between smoking reduction and changes in self-efficacy of resisting from smoking, stage movements (changes in readiness for quitting), and the use of coping strategies for smoking at follow-ups. The study will provide important empirical data for developing effective smoking cessation strategies that are culturally and linguistically appropriate for the Chinese American population.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Self-identified ethnic Chinese men and women
  • 18 years or older
  • report smoking cigarettes daily with at least 5 cigarettes per day in the last 7 days
  • reside in California
  • be able to read written English or Chinese

Exclusion criteria

  • Currently engaging in assisted smoking cessation efforts
  • Have health conditions that have contraindications of using nicotine replacement treatment (NRT) such as pregnancy, within 6 months post MI, severe or unstable angina

Treatment and study plan

Expert System Only

Behavioral

Expert system which includes a stage-matched manual, and a series of 3 individualized tailored feedback reports at baseline, 1, and 3 months

Enhanced Expert System

Behavioral

The intervention consists of 3 components:

  • Expert system which includes a stage-matched manual, and a series of 3 individualized tailored feedback reports at baseline, 1, and 3 months
  • scheduled smoking intervention, which includes a tailored-made 3-week smoking reduction schedule and a stage-matched tip guide to explain why and how to use the smoking reduction intervention
  • telephone check-in calls to provide brief counseling and technical support to motivate participants to use the intervention materials
  • a 2-week supply of nicotine gum or lozenge per participants' choice to use during smoking reduction

Primary outcomes

  1. self-report 7-day smoking abstinence

    Time frame: 12 months

Secondary outcomes

  1. self-report a 24-hour quit attempt

    Time frame: 12 months

  2. 50% or more reduction in smoking from baseline

    Time frame: 12 months

Sponsors and collaborators

Lead sponsor

University of California, San Francisco

Other

Collaborators

  • University of California

Registry information

Official study title

A Stage-Based Scheduled Smoking Intervention for Chinese

Important dates

Study start
2007
Primary completion
2009
Study completion
2009
First posted
Jul 14, 2008
Registry last updated
Jul 10, 2013

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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