Family-Based Treatment (FBT / Maudsley)

Theory of change

Change occurs when the parents effectively interrupt the disorder's behaviours, restore the adolescent's health and gradually hand back control as the capacity for autonomous development reappears.

Core ideas

1. The family is a resource for recovery and not an aetiology to be corrected

   FBT breaks explicitly with historical formulations that understood anorexia as the necessary expression of a pathological family. The treatment starts from the premise that parents may be overwhelmed, accommodating or trapped in ineffective interactions as a consequence of the illness, but mobilises them as the principal force available for recovering the adolescent. This distinction makes it possible to intervene on real interactions without turning them into a causal explanation of the disorder. (Lock & Le Grange, 2001, Can Family-Based Treatment of Anorexia Nervosa Be Manualized?; Russell et al., 1987, An Evaluation of Family Therapy in Anorexia Nervosa and Bulimia Nervosa).

2. Aetiological uncertainty does not preclude immediate intervention

   The agnostic stance holds that understanding with certainty why the disorder appeared is not a prerequisite for beginning an effective recovery. Faced with a medically dangerous illness, FBT prioritises what can be modified now: intake, weight, exercise, supervision and the family's capacity to confront the disorder. The search for causes is postponed when it competes with these tasks and regains relevance only if, once the crisis is under control, clinical problems remain that require attention. (Rienecke & Le Grange, 2022, The five tenets of family-based treatment for adolescent eating disorders).

3. Parental control of eating is temporary and in the service of restoring autonomy

   FBT deliberately restricts the adolescent's autonomy over eating when the illness has compromised their capacity to nourish themselves safely, but that redistribution of authority belongs to the acute phase and does not define the final goal. As soon as recovery permits, control progressively returns to the young person, and the therapy culminates by reviewing normal tasks of independence and development. The model's apparent paradox consists of using a temporary loss of autonomy in order to make possible a later autonomy less governed by the anorexia. (Lock & Le Grange, 2013, Treatment Manual for Anorexia Nervosa).

4. Externalising makes it possible to be firm against the illness without attacking the adolescent

   Externalisation reorganises the interpersonal meaning of resistance to food: parents can firmly confront a dangerous behaviour while at the same time maintaining affection and alliance with their child. This separation reduces attributions of malicious intent, guilt and criticism, protects the adolescent's identity and makes it easier for the family to form a coalition against the disorder rather than being divided by it. FBT's own contemporary development warns that externalisation must be used sensitively to avoid the adolescent feeling that all their behaviour or experience is invalidated as a mere product of the illness. (Rienecke & Le Grange, 2022, The five tenets of family-based treatment for adolescent eating disorders).

5. The therapist directs the clinical framework and the family constructs the solutions

   FBT's non-authoritarian stance combines firmness with decentralisation. The therapist does not negotiate the need to restore health, but avoids appropriating every concrete decision about how to feed the adolescent. Parents are regarded as experts on their child, their routines and their context, so the professional provides goals, principles and feedback and requires them to produce workable solutions. This distribution of expertise turns parental empowerment into a technical mechanism rather than a mere supportive attitude. (Rienecke & Le Grange, 2022, The five tenets of family-based treatment for adolescent eating disorders; Lock & Le Grange, 2013, Treatment Manual for Anorexia Nervosa).

6. The family meal turns the problem into an intervention observable in real time

   FBT brings the central conflict of the home into the consulting room early, through a real meal. The therapist can observe authority, avoidance, negotiation, criticism, the quantity served and resistance and, on that scene, coach the parents until a small behavioural change is produced. The doctrinal usefulness of the family meal lies in the fact that the therapy stops merely talking about eating and demonstrates live that the family system can act differently in the face of the disorder. (Lock & Le Grange, 2013, Treatment Manual for Anorexia Nervosa; Rienecke, 2017, Family-based treatment of eating disorders in adolescents: current insights).

7. Early weight restoration is both a therapeutic target and an indicator of response

   FBT treats weight as a direct clinical marker of whether the family interventions are succeeding in modifying the illness. The data show that early gain during the first sessions predicts a better outcome at the end of treatment, so an insufficient trajectory requires the plan to be reviewed rapidly rather than waiting passively. The model maintains, however, an important distinction between immediate prediction and long-term recovery: early weight response guides the treatment, but does not on its own explain all subsequent outcomes. (Le Grange et al., 2014, Early Weight Gain Predicts Outcome in Two Treatments for Adolescent Anorexia Nervosa).

8. FBT is a focal family therapy and differs from general systemic therapy

   Although it derives from family and systemic traditions, FBT does not aim to reorganise the family system globally as a condition of recovery. Its initial focus is far narrower: mobilising the family to restore weight and normalise eating behaviour. Trials comparing it with systemic family therapy show precisely this difference of target, since systemic therapy works on general family patterns while FBT organises the intervention around the direct management of the disorder. (Agras et al., 2014, Comparison of 2 Family Therapies for Adolescent Anorexia Nervosa).

9. The treatment follows a developmental logic of crisis, return of control and normalisation of development

   The three phases are not a simple division of time, but a clinical theory of what the adolescent needs at each moment of recovery. During the crisis, the priority is protection and restoration; afterwards, the family tests whether the adolescent can regain responsibility without the illness resurfacing; finally, the therapy returns to the ordinary tasks of adolescence and prepares the family to live without organising itself around the disorder. (Lock & Le Grange, 2013, Treatment Manual for Anorexia Nervosa; Lock & Le Grange, 2001, Can Family-Based Treatment of Anorexia Nervosa Be Manualized?).

10. The model's effectiveness depends on acting within medical limits and within a system of care

    FBT is an outpatient treatment for adolescents who are sufficiently stable and requires coordination with professionals able to monitor medical complications and psychiatric comorbidity. The therapist leads the psychotherapeutic and family component, but the clinical priority changes when malnutrition, physiological instability or psychiatric risk require hospitalisation or a higher level of care. This integration prevents family empowerment from being confused with self-sufficiency in the face of a potentially serious illness. (Lock & Le Grange, 2013, Treatment Manual for Anorexia Nervosa; Lock et al., 2010, Randomized Clinical Trial Comparing Family-Based Treatment to Adolescent Focused Individual Therapy for Adolescents with Anorexia Nervosa).

Influences

• The family therapy of the Maudsley Hospital
• Structural family therapy
• Strategic therapy
• Milan systemic therapy
• Narrative therapy
• Feminist perspectives on empowerment
• Manualised evidence-based treatments

Key references

• Lock, J., & Le Grange, D. (2013). Treatment Manual for Anorexia Nervosa: A Family-Based Approach (2nd ed.). New York: Guilford Press.
• Lock, J., & Le Grange, D. (2001). Can Family-Based Treatment of Anorexia Nervosa Be Manualized? Journal of Psychotherapy Practice and Research, 10, 253–261.
• Rienecke, R. D., & Le Grange, D. (2022). The five tenets of family-based treatment for adolescent eating disorders. Journal of Eating Disorders, 10, 60. https://doi.org/10.1186/s40337-022-00585-y
• Rienecke, R. D. (2017). Family-based treatment of eating disorders in adolescents: current insights. Adolescent Health, Medicine and Therapeutics, 8, 69–79. https://doi.org/10.2147/AHMT.S115775
• Lock, J., & Le Grange, D. (2005). Family-based treatment of eating disorders. International Journal of Eating Disorders, 37(S1), S64–S67. https://doi.org/10.1002/eat.20122
• Loeb, K. L., & Le Grange, D. (2009). Family-Based Treatment for Adolescent Eating Disorders: Current Status, New Applications and Future Directions. International Journal of Child and Adolescent Health, 2(2), 243–254.
• Russell, G. F. M., Szmukler, G. I., Dare, C., & Eisler, I. (1987). An evaluation of family therapy in anorexia nervosa and bulimia nervosa. Archives of General Psychiatry, 44, 1047–1056.
• Eisler, I., Dare, C., Hodes, M., Russell, G., Dodge, E., & Le Grange, D. (2000). Family therapy for adolescent anorexia nervosa: the results of a controlled comparison of two family interventions. Journal of Child Psychology and Psychiatry, 41, 727–736.
• Lock, J., Le Grange, D., Agras, W. S., Moye, A., Bryson, S. W., & Jo, B. (2010). Randomized clinical trial comparing family-based treatment with adolescent-focused individual therapy for adolescents with anorexia nervosa. Archives of General Psychiatry, 67(10), 1025–1032. https://doi.org/10.1001/archgenpsychiatry.2010.128
• Le Grange, D., Accurso, E. C., Lock, J., Agras, W. S., & Bryson, S. W. (2014). Early weight gain predicts outcome in two treatments for adolescent anorexia nervosa. International Journal of Eating Disorders, 47(2), 124–129. https://doi.org/10.1002/eat.22221
• Agras, W. S., Lock, J., Brandt, H., et al. (2014). Comparison of 2 family therapies for adolescent anorexia nervosa: a randomized parallel trial. JAMA Psychiatry, 71(11), 1279–1286. https://doi.org/10.1001/jamapsychiatry.2014.1025
• Le Grange, D., Lock, J., Agras, W. S., Bryson, S. W., & Jo, B. (2015). Randomized clinical trial of family-based treatment and cognitive-behavioral therapy for adolescent bulimia nervosa. Journal of the American Academy of Child & Adolescent Psychiatry, 54(11), 886–894.e2. https://doi.org/10.1016/j.jaac.2015.08.008