Bulimia Nervosa Clinical Trial
— SBSBNOfficial title:
Step by Step Group Therapy for Bulimia Nervosa: Effectiveness and Mechanisms of Change.
This a pseudo-randomized clinical trial that examines if a specific group therapy for BN is effective in improving its symptomatology, and what variables mediate such improvements. To do so a sample of 100 patients with BN will be pseudorandomized in a Group Therapy for BN or in a control waiting list group. Patients will be assessed at baseline, at the end of the group therapy and at 2 year follow up.
Status | Recruiting |
Enrollment | 100 |
Est. completion date | December 20, 2025 |
Est. primary completion date | May 6, 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years to 65 Years |
Eligibility | Inclusion Criteria: - Diagnostic of Bulimia Nervosa Exclusion Criteria: - Not understanding Spanish or Catalan Language |
Country | Name | City | State |
---|---|---|---|
Spain | Hospital de la Santa Creu i Sant Pau | Barcelona |
Lead Sponsor | Collaborator |
---|---|
Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau |
Spain,
- Andrade-González, N., & Fernández-Liria, A. (2016). Spanish adaptation of the working alliance inventory-short (WAI-S). Current Psychology, 35(1), 169-177.
Agh T, Kovacs G, Supina D, Pawaskar M, Herman BK, Voko Z, Sheehan DV. A systematic review of the health-related quality of life and economic burdens of anorexia nervosa, bulimia nervosa, and binge eating disorder. Eat Weight Disord. 2016 Sep;21(3):353-364. doi: 10.1007/s40519-016-0264-x. Epub 2016 Mar 4. — View Citation
Fairburn CG, Bailey-Straebler S, Basden S, Doll HA, Jones R, Murphy R, O'Connor ME, Cooper Z. A transdiagnostic comparison of enhanced cognitive behaviour therapy (CBT-E) and interpersonal psychotherapy in the treatment of eating disorders. Behav Res Ther. 2015 Jul;70:64-71. doi: 10.1016/j.brat.2015.04.010. Epub 2015 Apr 22. — View Citation
Hay P. A systematic review of evidence for psychological treatments in eating disorders: 2005-2012. Int J Eat Disord. 2013 Jul;46(5):462-9. doi: 10.1002/eat.22103. — View Citation
Polnay A, James VA, Hodges L, Murray GD, Munro C, Lawrie SM. Group therapy for people with bulimia nervosa: systematic review and meta-analysis. Psychol Med. 2014 Aug;44(11):2241-54. doi: 10.1017/S0033291713002791. Epub 2013 Nov 15. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Eating Attitudes Test, E-40. | A self report questionarie that assesses eating disorder symptomatology. The range of scores is 0-78. Higher scores mean higher eating disorders sympthoms. | 3 months | |
Primary | Eating Disorder Inventory, EDI | A self report questionarie that assesses eating disorder symptomatology. The range of scores is 0-192. Higher scores mean higher eating disorders sympthoms | 3 months | |
Primary | Bulimic Investigatory Test Edinburgh, BITE | A self report questionarie that assesses bulimia nervosa symptomatology.The range of scores is 0-30. Higher scores mean higher bulimic sympthoms | 3 months | |
Primary | Body Shape Questionnaire, BSQ-34 | A self report questionarie that assesses eating disorder symptomatology. The score is ranging between 34-204 points. Higher scores point to an increased level of concern on body shape. | 3 months | |
Secondary | Working alliance Inventory -short, WAIS. | A self report questionarie that assesses bulimia nervosa symptomatology. Values range from 12 to 84. Hihger scores meaning higher therapeutic alliance. | 3 months | |
Secondary | Autism-Spectrum Quotient, AQ | A self report questionarie that assesses autistic traits. The range of scores is 0 to 50. Higher scores mean higher autistic traits. | 3 months | |
Secondary | Quality of Life Enjoyment and Satisfaction Questionnaire, Q-LES-Q. | A self report questionarie that assesses quality of life. The range of scores is 0-100. Higher scores mean higher quality of life. | 3 months | |
Secondary | Beck Depression Inventory, BDI-II | A self report questionarie that assesses depressive symptoatology. The range of scores is 0-83. Higher scores mean higher depressive symptoms. | 3 months | |
Secondary | Rosenberg Self-Esteem Scale, RSE. | A self report questionarie that assesses self steem. The scale ranges from 0-30. Higher scores mean higher self-esteem. The range scores is 0-60. | 3 months | |
Secondary | State -Trait Anxiety Inventory, STAI. | A self report questionarie that assesses anxiety. Higher scores mean higher anxiety. | 3 months | |
Secondary | Difficulties in Emotion Regulation Scale (DERS). | A self report questionarie that assesses emotion regulation difficulties. The scale ranges from 28-40. H igher scores indicate more difficulty in emotion regulation. | 3 months |
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