Internet-based Group Contingency Management to Promote Smoking Abstinence

National Development and Research Institutes, Inc.40 enrolled

Overview

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

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

Conditions

Cigarette Smoking

Interventions

Full Group ContingencyBEHAVIORAL

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.

Mixed Group ContingencyBEHAVIORAL

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.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 60 Years

Medical Language ↔ Plain English

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)

Locations (2)

University of Florida

Gainesville, Florida, United States

National Development and Research Institutes

New York, New York, United States

Outcomes

Primary Outcomes

Breath CO

Twice daily breath CO samples obtained during baseline and treatment

Time frame: 8 weeks

Secondary Outcomes

Point prevalence measure of abstinence

Abstinence will be defined as: (a) CO sample ≤ 4 ppm; (b) cotinine \< 50 ng/ml; and (c) reporting not smoking, not even a puff in the last 7 days.

Time frame: at the end of treatment (approximately week 4) and at 3 month follow-up

Duration of abstinence during treatment.

The longest duration of sustained abstinence (CO ≤ 4 ppm) based on the twice-daily breath samples during the treatment period.

Time frame: 3 weeks

Rate of social exchanges

The number of comments posted on the discussion forum during treatment.

Time frame: 3 weeks

Data from ClinicalTrials.gov

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