Multisystemic Therapy (MST) (so-named because it addresses the different systems in an adolescent's life) is an intensive, family-focused and community-based treatment program for chronic and violent youth. The evidence-based therapy is goal oriented and aims at helping caregivers manage and nurture their challenging adolescents more effectively.
While the most widely disseminated form of MST is juvenile justice,
which addresses the problems of adolescents who typically have
significant histories of committing crime, there are variations that
deal with such issues as substance abuse, problem sexual behavior, abuse and neglect, psychiatric disorders and a range of other serious behavioral issues. http://www.musc.edu/psychiatry/faculty/henggelers.htm