Chronic Care Management for Dependence on Alcohol and Other DrugsThe AHEAD Randomized Trial

To determine whether CCM for alcohol and other drug dependence improves substance use outcomes compared with usual primary care.

The AHEAD study, a randomized trial conducted among 563 people with alcohol and other drug dependence at a Boston, Massachusetts, hospital-based primary care practice. Participants were recruited from September 2006 to September 2008 from a freestanding