Group-Based Contingency Management for Substance Abuse Treatment - 1

This study has been completed.
Information provided by (Responsible Party):
University of Connecticut Health Center Identifier:
First received: November 3, 2005
Last updated: November 17, 2011
Last verified: November 2011

The purpose of this study is to evaluate the efficacy of prize-based contingency management (CM) when administered exclusively in groups. Substance dependent patients (N=360) at community-based treatment programs are randomly assigned to one of two conditions: (a) standard, non-CM treatment or (b) standard treatment plus prize CM delivered in groups. In the CM condition, patients earn the opportunity to win prizes for attending groups and submitting drug-free biological specimens. Substance use and psychosocial problems are measured at intake, month 1, month 3 (post treatment), and at 6-, 9-, and 12-month follow-up evaluations. We also assess patient characteristics that may be associated with improved outcomes within and across conditions.

Condition Intervention
Substance Abuse
Behavioral: Contingency management

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Group-Based Contingency Management for Substance Abuse Treatment

Further study details as provided by University of Connecticut Health Center:

Primary Outcome Measures:
  • Drug use [ Time Frame: baseline and at each follow-up ] [ Designated as safety issue: No ]
  • Retention [ Time Frame: each follow-up ] [ Designated as safety issue: No ]

Enrollment: 312
Study Start Date: May 2005
Study Completion Date: January 2010
Primary Completion Date: January 2010 (Final data collection date for primary outcome measure)
Intervention Details:
    Behavioral: Contingency management
    Receive rewards (prizes) abstinence and attendance

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion criteria:

  • age > 18 years
  • current DSM-IV diagnosis of cocaine, opioid or alcohol abuse or dependence
  • willing to provide breath and urine samples for 12 weeks
  • English speaking
  • willing to sign informed consent

Exclusion criteria:

  • serious, uncontrolled psychiatric illness (e.g., acute schizophrenia, bipolar disorder, severe or psychotic major depression, or suicide risk)
  • dementia (<23 on the Mini Mental State Exam; Folstein et al. 1975)
  • in recovery from pathological gambling
  Contacts and Locations
Please refer to this study by its identifier: NCT00249717

United States, Connecticut
University of Connecticut Health Center
Farmington, Connecticut, United States, 06030
Sponsors and Collaborators
University of Connecticut Health Center
Principal Investigator: Nancy Petry, Ph.D. University of Connecticut Health Center
  More Information

No publications provided

Responsible Party: University of Connecticut Health Center Identifier: NCT00249717     History of Changes
Other Study ID Numbers: NIDA-18883-1, R01DA018883
Study First Received: November 3, 2005
Last Updated: November 17, 2011
Health Authority: United States: Federal Government
United States: Institutional Review Board

Keywords provided by University of Connecticut Health Center:
Contingency management
Substance abuse treatment

Additional relevant MeSH terms:
Substance-Related Disorders
Mental Disorders processed this record on April 23, 2014