Testing Counseling Styles to Motivate Smokers to Quit

This study has been completed.
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Delwyn Catley, University of Missouri, Kansas City
ClinicalTrials.gov Identifier:
First received: August 24, 2010
Last updated: July 3, 2012
Last verified: July 2012
The purpose of this study is to determine, among a sample of general adult smokers, the effectiveness of three different counseling interventions for motivating quit attempts among smokers not yet ready to quit.

Condition Intervention Phase
Tobacco Use
Nicotine Dependence
Behavioral: Brief Advice (BA)
Behavioral: Motivational Interviewing (MI)
Behavioral: Health Education (HE)
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind (Subject)
Primary Purpose: Prevention
Official Title: Can Motivational Interviewing be Effective for Smoking Cessation?

Resource links provided by NLM:

Further study details as provided by University of Missouri, Kansas City:

Primary Outcome Measures:
  • Quit Attempt(s) [ Time Frame: Any time within 26 weeks ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Smoking Cessation [ Time Frame: 7 days ] [ Designated as safety issue: No ]

Enrollment: 255
Study Start Date: October 2010
Study Completion Date: June 2012
Primary Completion Date: June 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Brief Advice Behavioral: Brief Advice (BA)
Participants in this arm will receive a single session of brief advice. A counselor will briefly discuss the risks associated with smoking.
Experimental: Motivational Interviewing Behavioral: Motivational Interviewing (MI)
Subjects will receive 4 counseling sessions (over 18 weeks) in which their thoughts about their smoking will be discussed. Two of these counseling sessions will be performed in person (weeks 0 and 12) and the remaining two will be over the phone(weeks 6 and 18).
Active Comparator: Health Education Behavioral: Health Education (HE)
Subjects will receive 4 counseling sessions (over 18 weeks)in which they will receive educational information about the risks of smoking and the benefits of quitting. Two of these counseling sessions will be performed in person (weeks 0 and 12) and the remaining two will be over the phone (weeks 6 and 18).


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Age 18 years and older
  • Smoke at least once a day for the past 30 days
  • Are willing to participate in all study components
  • Sufficient language skills in English for counseling and assessments
  • Has a home address
  • Has a working phone number

Exclusion Criteria:

  • Pregnant or planning to become pregnant in the next 6 months
  • Currently using a smoking cessation medication
  • Currently participating in smoking cessation program
  • Motivated to quit smoking
  • Planning to quit smoking in the next 2 weeks
  • Lives in a home with someone currently enrolled in the study
  • Minor
  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01188018

United States, Missouri
University of Missouri-Kansas City
Kansas City, Missouri, United States, 64110
Sponsors and Collaborators
University of Missouri, Kansas City
National Cancer Institute (NCI)
Principal Investigator: Delwyn Catley, Ph.D. University of Missouri, Kansas City
  More Information

Additional Information:
Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Delwyn Catley, Professor of Psychology, University of Missouri, Kansas City
ClinicalTrials.gov Identifier: NCT01188018     History of Changes
Other Study ID Numbers: 00023726  1R01CA133068-01A2 
Study First Received: August 24, 2010
Last Updated: July 3, 2012
Health Authority: United States: Institutional Review Board

Keywords provided by University of Missouri, Kansas City:
Smoking Cessation
Nicotine Dependence
Tobacco Use Cessation
Health Education
Patient Education

Additional relevant MeSH terms:
Tobacco Use Disorder
Chemically-Induced Disorders
Mental Disorders
Substance-Related Disorders

ClinicalTrials.gov processed this record on February 04, 2016