A Pilot Study of an Acceptance-Based Separated Family Treatment for Adolescent Anorexia Nervosa

The treatment of adolescent anorexia nervosa (AN) has improved significantly with the increased emphasis on family-based intervention. Yet despite advances, a substantial number of adolescents do not respond optimally to existing treatment models and thus there is a need for treatment alternatives that address barriers to recovery. We developed and piloted an acceptance-based separated family treatment (ASFT) with 6 adolescents with AN or subthreshold AN (eating disorder not otherwise specified, with the primary symptoms of restriction and severe weight loss). Treatment acceptability was adequate. Overall, parents rated the treatment as credible and expected improvement in their child's condition. Five of the 6 adolescents treated with ASFT restored weight to their ideal body mass index as indicated by age, height, and sex and determined by individual growth charts. Many demonstrated improved psychological health and adaptive functioning. There was evidence of broad effects, with parents reporting decreased anxiety and caregiver burden. ASFT holds promise as a treatment option for AN. The efficacy of this therapeutic approach should be tested in larger trials and compared to current family-based interventions to determine unique effects.

► The current study describes an ACT-informed separated family treatment for adolescent anorexia nervosa ► The treatment was found to be credible by parents who reported a high expectancy for improvement in their child's condition ► Five of the 6 adolescents demonstrated decreased restriction, improvements in body-mass index and normalization of menses ► Many adolescents demonstrated improvements in adaptive functioning ► Many parents reported decreased anxiety and decreased negative experiences in caregiving