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Updated: Jun 1, 2026

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Contingency management for alcohol use reduction: a pilot study using a transdermal alcohol sensor.

Nancy P Barnett1, Jennifer Tidey, James G Murphy

  • 1Center for Alcohol and Addiction Studies, Brown University, Box G-S121-5, Providence, RI 02912, USA. Nancy_Barnett@brown.edu

Drug and Alcohol Dependence
|June 14, 2011
PubMed
Summary

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Contingency management (CM) effectively reduced alcohol use in heavy drinkers, utilizing remote transdermal alcohol monitoring. This approach offers a feasible method for continuous alcohol use assessment and treatment reinforcement.

Area of Science:

  • Addiction Medicine
  • Behavioral Health
  • Remote Patient Monitoring

Background:

  • Contingency management (CM) efficacy for alcohol use disorders is under-evaluated due to reliance on in-person verification.
  • Transdermal alcohol sensors enable continuous, remote monitoring, facilitating timely reinforcement of reduced alcohol consumption.

Purpose of the Study:

  • To assess the effectiveness of CM in reducing alcohol consumption.
  • To evaluate the utility of transdermal alcohol sensors for continuous alcohol use measurement.

Main Methods:

  • 13 adults with heavy alcohol use participated in a 3-week study.
  • Participants wore a Secure Continuous Remote Alcohol Monitoring (SCRAM) bracelet and completed daily web-based surveys.
  • Reinforcement was provided on an escalating schedule during weeks 2 and 3 based on detected alcohol use.

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Main Results:

  • Significant reductions were observed in self-reported abstinence days and weekly drinks.
  • Transdermal alcohol measures, including average and peak concentration, also significantly declined.
  • A trend towards reduced tobacco use was noted, though not statistically significant.

Conclusions:

  • Contingency management demonstrates efficacy in reducing alcohol use.
  • Transdermal alcohol monitoring is a feasible method for clinical alcohol use assessment.