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

Summary

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.

Conditions

• Binge Eating
• Binge Eating Behaviour
• Binge Eating/Loss of Control Eating
• Body Image
• Body Image Disturbance

Interventions

BEHAVIORAL

Assessment-only

Diagnostic items of the Eating Disorder Examindation (EDE)

BEHAVIORAL

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

Assessment-only intervention + values-based reflection and goal-setting/action-planning exercises

BEHAVIORAL

Minimal-Assessment Control

Invovles completing only the Intro/Eating Pattern + Bulimic Episodes/Overeating Sections of Eating Disorder Examination (EDE)

Sponsors & Collaborators

• Ohio University

  collaborator OTHER

• Taylor Rezeppa

  lead OTHER

Principal Investigators

• Katherine J. Forney, Ph.D. · Ohio University

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Model

FACTORIAL

Eligibility

Min Age

18 Years

Sex

FEMALE

Healthy Volunteers

No

Timeline & Regulatory

Start

2025-10-31

Primary Completion

2026-10-31

Completion

2027-05-31

Countries

• United States

Study Locations