BackgroundTo investigate the outcome of an integrated individual and family therapy (Intensive Contextual Treatment: ICT) in terms of reducing suffering and increasing functional adjustment among self-harming and/or suicidal adolescents with high symptom loads and their families.MethodsForty-nine self-harming and/or suicidal adolescents, Mage = 14.6, of predominantly Swedish origin and female gender (85.7%) participated with their parents. The study had a within group design with repeated measures at pre- and post-treatment, as well as six- and twelve-months follow-ups. Self-reports were used for the main outcomes; self-harm rates, suicide attempts, parent-reported days of inpatient/institutional care, internalized and externalized symptoms, perceived stress, emotion regulation, school hours and adjustment. Secondary outcomes were levels of reported expressed emotions within family dyads, as well as parental anxiety, depression and stress.ResultsFrom pre- to post-assessment, the adolescents reported significant reductions of self-harm (p = .001, d = 0.54) and suicide attempts (p < .0001, d = 1.38). Parent-reported days of inpatient/institutional care were reduced, as well as parent- and adolescent-reported internalizing and externalizing symptoms. Furthermore, school attendance and adjustment were improved, and the adolescents reported experiencing less criticism while parents reported less emotional over-involvement. The results were maintained at follow-ups.ConclusionsThe adolescents and the parents reported improvements for the main outcomes. This treatment appears promising in keeping the families in treatment and out of hospital, suggesting that an integrative approach may be beneficial and feasible for this group.Trial registrationThis study has been approved 19/12 2011, by the regional review board in Stockholm (Dnr 2011/1593–31/5).