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Increasing Contingency Management Success in Smoking Cessation

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ClinicalTrials.gov Identifier: NCT00273793
Recruitment Status : Completed
First Posted : January 9, 2006
Results First Posted : June 7, 2012
Last Update Posted : June 21, 2012
Sponsor:
Collaborators:
National Institute on Drug Abuse (NIDA)
National Institutes of Health (NIH)
Information provided by (Responsible Party):
The University of Texas Health Science Center at San Antonio

Brief Summary:
Incentives can be used to facilitate the acquisition of many healthy behaviors, such as smoking cessation. However, there is much room for improvement in the use of incentives. This study investigates how two aspects of providing incentives influence the effectiveness of using incentives to promote smoking cessation. One aspect is the criterion for providing incentives, e.g., whether to require smoking cessation before providing an incentive or to provide incentives following smoking reductions. The other aspect being investigated is whether it is best to use a fixed incentive amount or an amount that increases with continued cessation success.

Condition or disease Intervention/treatment Phase
Smoking Behavioral: Contingency Management Not Applicable

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 328 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Increasing Contingency Management Success Using Shaping
Study Start Date : June 2005
Actual Primary Completion Date : June 2010
Actual Study Completion Date : November 2010

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: 1
Shaping intervention for hard-to-treat smokers
Behavioral: Contingency Management
incentives are available for reduced smoking on each study visit which occur each weekday.

Active Comparator: 2
fixed criterion intervention for hard-to-treat smokers
Behavioral: Contingency Management
incentives are available for reduced smoking on each study visit which occur each weekday.

3
Non contingent incentives available to hard to treat smokers
Behavioral: Contingency Management
incentives are available for reduced smoking on each study visit which occur each weekday.

Experimental: 4
Ascending incentives values used in Smokers with Early Success
Behavioral: Contingency Management
incentives are available for reduced smoking on each study visit which occur each weekday.

Active Comparator: 5
fixed value incentives are used in Smokers with Early Success
Behavioral: Contingency Management
incentives are available for reduced smoking on each study visit which occur each weekday.

6
Non contingent incentives are available to Smokers with Early Success
Behavioral: Contingency Management
incentives are available for reduced smoking on each study visit which occur each weekday.




Primary Outcome Measures :
  1. Breath Carbon Monoxide Levels Indicating Smoking Abstinence During the Study, i.e., the Number of Breath Samples With Carbon Monoxide (CO) Levels Less Than 3 Parts Per Million (Ppm) [ Time Frame: daily for breath CO ]

Secondary Outcome Measures :
  1. Average Number Cigarettes Reported Smoked Each Day in the Past Week Measured at Follow-up Six Months After Entry Into the Study [ Time Frame: past week at follow-up six months after study entry ]
    average number cigarettes reported smoked each day in the past week at follow up six months after study entry



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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria: Daily Smokers smoking a pack or more of cigarettes a day who are able to report to the study site each work day for about 5 minutes for around 3 months. Subjects must also have a breath CO level indicative of smoking at this level, and most report smoking for at least two years. Subjects must intend on quitting smoking.

Exclusion Criteria: Participation in another study by this group within the past year. Inability to give informed consent. Incapable of attendance each workday during the morning hours.


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): NCT00273793


Locations
United States, Texas
Smoking Cessation Laboratory, Department of Psychiatry, UTHSCSA, 7703 Floyd Curl Drive
San Antonio, Texas, United States, 78229-3900
Sponsors and Collaborators
The University of Texas Health Science Center at San Antonio
National Institute on Drug Abuse (NIDA)
National Institutes of Health (NIH)
Investigators
Principal Investigator: Richard J Lamb, Ph.D. The University of Texas Health Science Center at San Antonio

Responsible Party: The University of Texas Health Science Center at San Antonio
ClinicalTrials.gov Identifier: NCT00273793     History of Changes
Other Study ID Numbers: 045-0013-195
R01DA013304 ( U.S. NIH Grant/Contract )
First Posted: January 9, 2006    Key Record Dates
Results First Posted: June 7, 2012
Last Update Posted: June 21, 2012
Last Verified: June 2012