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Completed

NCT Number: NCT01181661

Internet-based Group Contingency Management to Promote Smoking Abstinence

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

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Key information

Conditions

Cigarette Smoking Behavior Smoking Tobacco Smoking Tobacco Use

Age range

18 year–60 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Florida, Gainesville, Florida, United States

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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)

Treatment and study plan

Full Group Contingency

Behavioral

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 Contingency

Behavioral

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.

Primary outcomes

  1. Breath CO

    Time frame: 8 weeks

    Twice daily breath CO samples obtained during baseline and treatment

Secondary outcomes

  1. Point prevalence measure of abstinence

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

    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.

  2. Duration of abstinence during treatment.

    Time frame: 3 weeks

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

  3. Rate of social exchanges

    Time frame: 3 weeks

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

Sponsors and collaborators

Lead sponsor

National Development and Research Institutes, Inc.

Other

Collaborators

  • National Institute on Drug Abuse (NIDA)

Registry information

Important dates

Study start
2010
Primary completion
2013
Study completion
2013
First posted
Aug 13, 2010
Registry last updated
Sep 25, 2014

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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