The results derive from an exhaustive review of scientific reports on the issue. The authors discuss the objectives of the programs, the principal treatment modalities used (theoretical models, frequency, and duration of treatment), the impact of these programs on the clientele, i.e., attrition rates, recidivism rates, and success rates. The results achieved in the community-based programs suggest that, although these treatments bring about some short-term positive results, the long-term results leave room for continued improvement. The data on the programs being conducted in correctional settings are still to come or are only in a preliminary status. The article concludes with a discussion of the relevance of these treatment programs and of the stakes involved in the provision of such programs. 1 table, 2 notes, and 54 references