Testing SHAPE: A Single-Session Intervention Targeting Binge Eating in Women Through Assessment and Values-Based Strategies

Taylor Rezeppa

Status: Not yet enrolling

Conditions: Binge Eating/Loss of Control Eating; Body Image; Binge Eating; Body Image Disturbance; Binge Eating Behaviour

Treatments: Behavioral: values-based reflection and goal-setting/action-planning exercises; Behavioral: Assessment-only; Behavioral: Minimal-Assessment Control

Study type: Interventional

Funder types: Other

Identifiers

NCT07217847

IRB-FY26-100

Details and patient eligibility

About

The goal of this controlled trial is to learn whether a brief single-session intervention (SSI) can reduce binge eating symptoms by targeting overvaluation of weight/shape in women with recurrent binge eating.

The main questions it aims to answer are:

• Does assessment alone reduce binge eating severity and overvaluation of weight/shape compared to a control group undergoing minimal assessment?
• Does adding a values-based reflection and goal-setting component (the full SHAPE intervention) add benefits beyond the assessment alone?

Researchers will compare three groups:

1. assessment-only,
2. full SHAPE intervention, and
3. minimal assessment control to see if both active conditions outperform the control, and whether the full intervention adds any benefits beyond the assessment itself

Participants will:

• Complete a semi-structured eating disorder assessment (Eating Disorder Examination)
• Depending on assignment, also complete a values-based reflection and goal-setting exercise with psychoeducation
• Complete follow-up assessments evaluating binge eating severity, overvaluation of weight/shape, clinical impairment, binge frequency, and related outcomes.

Enrollment: 56 estimated patients

Sex: Female

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• ≥ 18 years old
• Identify as cisgender female
• self-reported BMI ≥ 18.5 kg/m²
• Rate the extent to which their weight or shape influences how they feel about themselves as a "4" or higher on a 7-point Likert scale on screening measures
• ≥1 binge eating episode every 2 weeks (i.e., ≥ six episodes over 3 months) at the time of screening

Exclusion criteria

• < 18 years old
• Assigned male at birth
• Gender identity different from biological sex indicated on birth certificate
• Purging behaviors (i.e., self-induced vomiting, laxative misuse, or diuretic misuse) ≥ 1x/week in the last 3 months at the time of screening.
• Engaged in structured psychological therapy or counseling (defined as attending sessions > 1x/month in the past 3 months)
• Prior participation in studies that include administration of the EDE interview at Ohio University (IRB-FY24-403, IRB-FY25-330, and IRB-21-F-14).

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Factorial Assignment

Masking: Single Blind

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56 participants in 3 patient groups, including a placebo group

Assessment-only

Active Comparator group

Description:

Diagnostic items of the Eating Disorder Examindation (EDE)

Treatment:

Behavioral: Assessment-only

Full Intervention (SHAPE)

Active Comparator group

Description:

Diagnostic items of the Eating Disorder Examindation (EDE) \+ Values-based reflection and goal-setting exercises

Treatment:

Behavioral: values-based reflection and goal-setting/action-planning exercises

Behavioral: Assessment-only

Minimal-Assessment Control

Placebo Comparator group

Description:

Intro/Eating Pattern + Bulimic Episodes/Overeating Sections of Eating Disorder Examindation (EDE)

Treatment:

Behavioral: Minimal-Assessment Control