Trial on Three Eating Disorders Group Treatment

Université Lumière Lyon 2

Status: Completed

Conditions: Eating Disorders

Treatments: Other: Arm 1: Cognitive-dissonance based program; Other: Arm 3: Person-centered program; Other: Arm 2: Mindfulness-based program

Study type: Interventional

Funder types: Other

Identifiers

NCT05140109

2020-A02346-33a

Details and patient eligibility

About

This trial aims at comparing three group treatments designed for eating disorders: a Cognitive-dissonance, a Mindfulness and a Person-centered based programs. Women with eating disorders will be recruited and randomized to one of the three programs. Participants will complete a pretest, a posttest, a 3-months follow-up and a 1-year follow-up. This trial aims to compare the programs to analyze the specific dimensions upon which each program acts. The investigators therefore made hypotheses according to the programs' theory: participants in the Cognitive-dissonance based program should experience a greater decrease in eating disorders symptoms, thin-ideal internalization and body dissatisfaction and a greater improvement in quality of life than other participants. Participants in the Mindfulness-based program should show a greater improvement in negative affect and in equanimity than other participants. Participants in the Person-Centered based program should report a greater increase in congruence than other participants.

Enrollment: 100 patients

Sex: Female

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• eating disorders (anorexia nervosa, bulimia nervosa or binge eating disorder) or other specified feeding or eating disorder (subthreshold of anorexia, bulimia or binge eating disorder) according to Diagnostic Statistical Manual 5
• to have no regular treatment (no more than one session per month) during the 8 weeks of the program
• participants with a Body Mass Index under 17.5 could be include in the study if they had a medical monitoring in another structure

Exclusion criteria

• a psychotic disorder
• a bipolar disorder
• a mental retardation
• to not read or speak French fluently

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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100 participants in 3 patient groups

Cognitive-dissonance based program

Experimental group

Description:

Group program of 8 sessions of one hour and a half.

Treatment:

Other: Arm 1: Cognitive-dissonance based program

Mindfulness-based program

Active Comparator group

Description:

Group program of 8 sessions of one hour and a half.

Treatment:

Other: Arm 2: Mindfulness-based program

Person-centered program

Active Comparator group

Description:

Group program of 8 sessions of one hour and a half.

Treatment:

Other: Arm 3: Person-centered program