Internet-based Group Contingency Management to Promote Smoking Abstinence

National Development and Research Institutes, Inc.

Status: Completed

Conditions: Cigarette Smoking

Treatments: Behavioral: Full Group Contingency; Behavioral: Mixed Group Contingency

Study type: Interventional

Funder types: Other; NIH

Identifiers

NCT01181661

1R21DA029162 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

The purpose of the study is to develop and test an Internet-based group contingency management program designed to promote smoking cessation.

Enrollment: 40 patients

Sex: All

Ages: 18 to 60 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• self-reported smoker
• ability to use the Internet
• permission to contact applicant by phone

Exclusion criteria

• self-report of a history of or current severe or unstable medical or psychiatric illness that would interfere with the study
• inability to avoid high levels of ambient CO (e.g., occupational exposure; lives with a another smoker who smokes in the home)

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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40 participants in 2 patient groups

Full Group Contingency

Experimental group

Description:

This group (n = 20) will earn vouchers based only on team (n = 4) performance. Only if all members of the team submit a negative sample (CO ≤ 4 ppm), will they each earn a voucher.

Treatment:

Behavioral: Full Group Contingency

Mixed Group Contingency

Experimental group

Description:

This group (n = 20) will earn vouchers based on both individual and team (n = 4) performance. If an individual submits a negative sample (CO ≤ 4 ppm), s/he will earn a voucher. Additionally, bonus vouchers will be earned if all team members submit negative samples.

Treatment:

Behavioral: Mixed Group Contingency