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Medical News

Contingency Management Reduces Drug-Related Human Immunodeficiency Virus Risk Behaviors in Cocaine-Abusing Methadone Patients

July 17, 2008

The current study examined whether contingency management (CM), known to be efficacious in reducing drug use, also reduces HIV risk behaviors, and if these effects are mediated by longest duration of abstinence achieved during treatment. The researchers analyzed data from a subset of participants in a combined data set of three published randomized controlled trials of CM treatments.

The subjects of the study were 165 cocaine-abusing methadone maintenance patients in a community-based methadone clinic. Participants received either standard methadone treatment or standard methadone treatment with CM for three months.

Prior to randomization to a study condition and again three months after study treatments ended, the HIV Risk Behavior Scale (HRBS) was administered. Longest duration of cocaine and opioid abstinence achieved during treatment was the primary objective indicator of drug use.

The subjects in the CM group significantly decreased their overall HIV risk behaviors and injection drug use behaviors relative to subjects in the standard care group. In addition, the CM participants achieved longer periods of consecutive cocaine and opioid abstinence during treatment. Duration of abstinence achieved mediated the relationship between treatment condition and HRBS difference scores.

"These results suggest that CM treatment reduces HIV drug use risk behaviors in cocaine-abusing methadone maintenance patients," the authors concluded.

Back to other news for July 2008

Adapted from:
07.2008; Vol. 103, No. 7: P. 1187-1197; Tressa Hanson, Sheila M. Alessi, Nancy M. Petry

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This article was provided by CDC National Prevention Information Network. It is a part of the publication CDC HIV/Hepatitis/STD/TB Prevention News Update.
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