Preliminary Test of Reactive Carrot Incentives in a Practice Quit Environment With Contingency Management Incentives

Not Applicable

Completed

• Conditions: Smoking Cessation
• Interventions: Behavioral: Contingency Management; Behavioral: Control

• Registration Number: NCT05072301
• Lead Sponsor: Yale University

Brief Summary

The primary aim of this study is to pilot test a novel reactive carrot approach for improving individuals' ability to stick to a "practice quit" program in a smoking cessation context. In this study, the treatment gives subjects an offer to forego a monetary incentive to forego the opportunity to receive subsequent abstention (contingency management) rewards.

Detailed Description

All the subjects, treatment and control groups, would be given the opportunity to receive attendance rewards for attending six CO testing meetings as well as abstention (contingency management) rewards for abstaining from smoking. The only difference between the subjects randomly assigned to treatment and control groups is that each member of the treatment group would be tempted at the beginning of their program by being offered a one-time monetary incentive to forego the opportunity to receive subsequent abstention (contingency management) rewards. Treatment group subjects would, at their initial intake meeting after the attendance and abstention rewards opportunity had been described, be given a one-time opportunity to received $80 temptation payment to give up the opportunity to receive subsequent abstinence (contingency management) rewards that could be worth as much as $165. Subjects who accepted this one-time opportunity would remain enrolled in the practice quit smoking and they would still be eligible to receive attendance reward compensation totaling up to $30 for showing up to their six testing appointments. The purpose of the study is to test whether resisting the temptation to accept the one-time payment helps steel the resolve of the treatment subjects to follow through and make sure that they earn the subsequent contingency management rewards. More specifically, an intent-to-treat design will allow us to test whether the temptation causes treatment group subjects to have greater success than the un-tempted control group subjects to abstain from smoking during the two-week practice quit period.

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study First Submitted: 2021-09-30
• Study First Submitted QC: 2021-09-30
• Study First Posted: 2021-10-08
• Study Start: 2021-10-13
• Primary Completion: 2023-01-03
• Study Completion: 2023-01-03
• Status Verified: 2023-08
• Last Update Submitted: 2023-08-31
• Last Update Posted: 2023-09-01

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 87

Inclusion Criteria

• Age ≥ 18 years
• Smoke ≥ 3 cigarettes per week and expressing interest in quitting smoking.

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Exclusion Criteria

• Unstable psychiatric conditions such as suicidal ideation, acute psychosis, severe alcohol dependence, or dementia
• unstable medical conditions that have not been well controlled (e.g., acute infection requiring hospitalization) for the past 30 days
• pregnant or breastfeeding women
• those with limited decision making capacity.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Contingency Management	Contingency Management	The treatment group will receive a onetime offer of $80 (a reactive carrot) to forego all abstinence (contingency management) reward payments in the future.
Control	Control	The control group will receive contingency management payments and other monetary benefits for completing the trial.

Primary Outcome Measures

Name	Time	Method
Breath Carbon Monoxide Test (measured in ppm levels)	14 days following intake date	A primary outcome is the sum of times a subject tested abstinent at the 6 CO testing meetings. To test for abstinence, a breath carbon monoxide test will be used to determine exposure to smoke. Abstinence will be coded as expired-air carbon monoxide (CO) levels below 5 ppm.
Proportion of CO (CO ≤ 4ppm)	14 days following intake date	Proportion of 6 CO tests showing abstinence (CO ≤ 4ppm)
Maximum number of consecutive abstinent days	14 days following intake date	The maximum number of consecutive abstinent days for each subject will be measured

Secondary Outcome Measures

Name	Time	Method
Reduced smoking	14 days following intake date, as well as 1 month and 6 months after intake date	Whether subjects report reduced smoking will be used to measure reduced smoking habits
Attrition	14 days following intake date	Attrition will be measured by participants ability to make their testing appointments.
Time to first relapse	14 days following intake date	Time to first relapse will be measured by subjects self-reporting use of different types of tobacco products or cigarette alternatives
Contingency Management Payment	14 days following intake date	Total amount of abstention (contingency management) rewards paid to subjects.

Trial Locations

Locations (2)

General New Haven Public; 🇺🇸 New Haven, Connecticut, United States

Ukraine site; 🇺🇦 Kiev, Ukraine