Evaluation of internet-based, guided, self-help, cognitive behavioural therapy for bulimia nervosa and similar eating disorders in a specialist outpatient setting

Evaluation of internet-based, guided, self-help, cognitive behavioural therapy for bulimia nervosa and similar eating disorders in a specialist outpatient setting: a randomized controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN44999017

Enrollment

150

Registered

2013-07-17

Start date

2009-10-14

Completion date

Unknown

Last updated

2023-01-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bulimia nervosa and similar eating disorders not otherwise specified Mental and Behavioural Disorders Bulimia nervosa

Interventions

The current project has three treatment arms. 1. One is a bibliotherapy-based guided self-help (GSH) cognitive behavioral therapy (CBT) with Internet support. The CBT-based self-help m

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Diagnosed with bulimia nervosa, sub-threshold bulimia, or binge eating disorder if there has been a history of recurrent compensatory behaviour within the past year. 2. Body mass index (BMI) 17.5-34 3. Minimum 18 years of age 4. Fluent in Swedish 5. Continuous access to the Internet

Exclusion criteria

Exclusion criteria: 1. Severe symptoms of depression, anxiety and/or obsession-compulsion 2. Alcohol- or drug dependency 3. Psychosis 4. Suicidal thoughts, suicide attempt within the past year 5. Previous participation in any of the current treatment interventions, or other ongoing treatment for eating disorder

Design outcomes

Primary

Measure	Time frame
1. Pre- and post-treatment symptoms of eating disorder 2. Comorbidity, self-image 3. Clinical impairment 4. Motivation They are assessed with the computerized 'Stepwise' system which contains several clinical- and self -assessments: 1. Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I), a clinical interview for assessment of comorbid psychiatric disorders 2. Structured Eating Disorder Interview (SEDI), a clinical interview for assessment of DSM-IV eating disorder diagnosis 3. The Eating Disorder Examination Questionnaire (EDE-Q), a 36-item self-assessment of dietary restraint, eating concern, shape concern, weight concern, and frequency of episodes of disturbed eating- and compensatory behaviours during the past 28 days 4. The Structural Analysis of Social Behaviour (SASB) Intrex introject, a self-assessment of self-image in 36 statements describing self-directed behaviours 5. The Comprehensive Psychopathology Rating Scale self-assessment for Affective syndromes (CPRS-S-A), a self-assessment that measures depression, anxiety, and obsession-compulsion during the past three days on a 7-step scale 6. The Clinical Impairment Assessment (CIA), a 16-item self-report that measure impairment due to eating disorder 7. The Bulimia Nervosa Stages of Change Questionnaire (BNSOCQ), a 20-item self-report that assess motivation to recover from bulimia nervosa.	—

Measure

Time frame

1. Pre- and post-treatment symptoms of eating disorder 2. Comorbidity, self-image 3. Clinical impairment 4. Motivation They are assessed with the computerized 'Stepwise' system which contains several clinical- and self -assessments: 1. Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I), a clinical interview for assessment of comorbid psychiatric disorders 2. Structured Eating Disorder Interview (SEDI), a clinical interview for assessment of DSM-IV eating disorder diagnosis 3. The Eating Disorder Examination Questionnaire (EDE-Q), a 36-item self-assessment of dietary restraint, eating concern, shape concern, weight concern, and frequency of episodes of disturbed eating- and compensatory behaviours during the past 28 days 4. The Structural Analysis of Social Behaviour (SASB) Intrex introject, a self-assessment of self-image in 36 statements describing self-directed behaviours 5. The Comprehensive Psychopathology Rating Scale self-assessment for Affective syndromes (CPRS-S-A), a self-assessment that measures depression, anxiety, and obsession-compulsion during the past three days on a 7-step scale 6. The Clinical Impairment Assessment (CIA), a 16-item self-report that measure impairment due to eating disorder 7. The Bulimia Nervosa Stages of Change Questionnaire (BNSOCQ), a 20-item self-report that assess motivation to recover from bulimia nervosa.

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Secondary

Measure	Time frame
1. Predictors of treatment outcome (one year post-treatment) 2. Long-term follow-up (three years post-treatment) Methods used for measuring the secondary outcome measures are the same as mentioned above.	—

Countries

Sweden

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 10, 2026