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.

Trial Health

On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment

328

participants targeted

Target at P75+ for not_applicable

Timeline

Completed

Started Jun 2005

Longer than P75 for not_applicable

Geographic Reach

1 country

1 active site

Status

completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

5.4 years study duration

Study Start

First participant enrolled

June 1, 2005

Completed

7 months until next milestone

First Submitted

Initial submission to the registry

January 4, 2006

Completed

5 days until next milestone

First Posted

Study publicly available on registry

January 9, 2006

Completed

4.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2010

Completed

5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2010

Completed

1.6 years until next milestone

Results Posted

Study results publicly available

June 7, 2012

Completed

Last Updated

June 21, 2012

Status Verified

June 1, 2012

Enrollment Period

5 years

First QC Date

January 4, 2006

Results QC Date

March 9, 2012

Last Update Submit

June 14, 2012

Conditions

Smoking

Outcome Measures

Primary Outcomes (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)
daily for breath CO

Secondary Outcomes (1)

Average Number Cigarettes Reported Smoked Each Day in the Past Week Measured at Follow-up Six Months After Entry Into the Study
past week at follow-up six months after study entry