Clinical trial NCT05072301: Preliminary Test of Reactive Carrot Incentives in a Practice Quit Environment With Contingency Management Incentives
Official title: Preliminary Test of Reactive Carrot Incentives in a Practice Quit Environment With Contingency Management Incentives
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Smoking Cessation
Keywords: incentives
Lead sponsor: Yale University
Sponsor class: OTHER
First posted: 2021-10-08
Enrollment: 87
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

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.

Eligibility criteria: Inclusion Criteria:

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

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.

Primary outcomes:
measure: Breath Carbon Monoxide Test (measured in ppm levels)
timeFrame: 14 days following intake date
measure: Proportion of CO (CO ≤ 4ppm)
timeFrame: 14 days following intake date
measure: Maximum number of consecutive abstinent days
timeFrame: 14 days following intake date
Secondary outcomes:
measure: Attrition
timeFrame: 14 days following intake date
measure: Contingency Management Payment
timeFrame: 14 days following intake date
measure: Time to first relapse
timeFrame: 14 days following intake date
measure: Reduced smoking
timeFrame: 14 days following intake date, as well as 1 month and 6 months after intake date
Other outcomes:
Locations:
city: New Haven
country: United States
facility: General New Haven Public
state: Connecticut
city: Kiev
country: Ukraine
facility: Ukraine site
Study officials:
affiliation: Yale Law School
name: Ian Ayres, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: University of Amsterdam
name: Giuseppe Mattiacci, PhD
role: PRINCIPAL_INVESTIGATOR
References: