Bulimia Nervosa
Conditions
Brief summary
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.
Detailed description
This is a controlled non randomized study that will compare a group of patients with BN that participate in the SBS group therapy with a group of BN patients who will be in wait list as a control condition. Patients for this single center trial will be recruited from the outpatient facility of the Hospital de la Santa Creu I Sant Pau (Barcelona, Spain). After assessed for eligibility participants will be given a set of self -report questionnaires. After the questionnaires are completed participants will be allocated to wait list condition or to the treatment arm. Time between assessment and starting the SBS group will be a month or least. Participants will be administered the same questionnaires the following month after finishing the treatment or after 3 to 4 months after the first assessment for the control condition.
Interventions
BEHAVIORALl Group Therapy for BN.
9 to 10 group sessions of 90 to 120min each
Sponsors
Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No
Inclusion criteria
* Diagnostic of Bulimia Nervosa
Exclusion criteria
* Not understanding Spanish or Catalan Language
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Eating Attitudes Test, E-40. | 3 months | A self report questionarie that assesses eating disorder symptomatology. The range of scores is 0-78. Higher scores mean higher eating disorders sympthoms. |
| Eating Disorder Inventory, EDI | 3 months | A self report questionarie that assesses eating disorder symptomatology. The range of scores is 0-192. Higher scores mean higher eating disorders sympthoms |
| Bulimic Investigatory Test Edinburgh, BITE | 3 months | A self report questionarie that assesses bulimia nervosa symptomatology.The range of scores is 0-30. Higher scores mean higher bulimic sympthoms |
| Body Shape Questionnaire, BSQ-34 | 3 months | 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. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Working alliance Inventory -short, WAIS. | 3 months | A self report questionarie that assesses bulimia nervosa symptomatology. Values range from 12 to 84. Hihger scores meaning higher therapeutic alliance. |
| Autism-Spectrum Quotient, AQ | 3 months | A self report questionarie that assesses autistic traits. The range of scores is 0 to 50. Higher scores mean higher autistic traits. |
| Quality of Life Enjoyment and Satisfaction Questionnaire, Q-LES-Q. | 3 months | A self report questionarie that assesses quality of life. The range of scores is 0-100. Higher scores mean higher quality of life. |
| Beck Depression Inventory, BDI-II | 3 months | A self report questionarie that assesses depressive symptoatology. The range of scores is 0-83. Higher scores mean higher depressive symptoms. |
| Rosenberg Self-Esteem Scale, RSE. | 3 months | 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. |
| State -Trait Anxiety Inventory, STAI. | 3 months | A self report questionarie that assesses anxiety. Higher scores mean higher anxiety. |
| Difficulties in Emotion Regulation Scale (DERS). | 3 months | A self report questionarie that assesses emotion regulation difficulties. The scale ranges from 28-40. H igher scores indicate more difficulty in emotion regulation. |
Countries
Spain
Outcome results
None listed