In It To Quit: Commitment Contracts for Smoking Cessation

Completed · Not applicable

Conditions studied: Smoking

In brief

This study aims to examine whether a combination of positive and negative commitment devices is effective at inducing long-term smoking cessation in smokers from a low-to-moderate income background. Investigators will randomly assign patients of a multi-site clinic in Connecticut to receive one or both of a succession of two commitment contracts. First, a two-month reward contract will pay participants for (a) engaging in clinic and web-based activities that support smoking cessation and (b) quitting smoking, as measured at period end. Second, a four-month deposit contract will invite participants to commit funds which they forfeit unless they abstain from smoking over the entire period. A random subset of participants will also have the option to pre-commit to the deposit contract at study enrollment. Reward payout and deposit recovery will be conditional on biochemical verification of self-reported abstinence. Investigators will conduct follow-up biochemical verification at 12 months to observe whether abstinence persists after removal of incentives. The primary outcome of interest will be continuous abstinence from smoking between months 2 and 12, i.e. biochemically verified abstinence at all three measurements. A short baseline and endline survey will also be administered to measure characteristics and outcomes related to smoking behavior.

Key facts

Study ID

NCT02596061

Run by

Community Health Center, Inc.

People needed

311

Starts

2015-11-01

Expected to finish

2017-12-01

Last updated by the study team

2018-01-26

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Must be Community Health Center, Inc. medical patients
• Must have had a clinic visit within the previous 2 years
• Daily smoker, with smoking status verified by self-reports in clinic medical records
• Age 18 or over; 19 or over if pregnant
• Has regular access to internet on computer or smartphone
• Not currently enrolled in R2Q and, if formerly enrolled in R2Q, not assigned to the intervention group.
• Speaks English and/or Spanish

You may not qualify if…

• Illiterate patients that do not have someone who can assist them during the study

Where it is running

• Community Health Center, Inc. — Middletown, Connecticut, United States

Full record on ClinicalTrials.gov

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