Targeting Transdiagnostic Self-regulatory Factors and Eating Disorder Pathology Among Adults With BInge-spectrum Eating disOrders: A mHEALTH Interoceptive Exposure Intervention (the Bio-HEALTH Study)

NCT ID: NCT06631729

Last Updated: 2026-02-12

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: NA
• Total Enrollment: 144 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-01-15
• Study Completion Date: 2026-07-15

Brief Summary

The present study will be fully remote (virtual) and include observational design features (assessments) plus a clinical trial. All assessments will be completed using HIPAA-approved platforms (e.g., Qualtrics, MindLogger EMA platform). After screening via Qualtrics to determine eligibility (described below), participants will complete a cross-sectional survey via Qualtrics, followed by a baseline EMA period. During the baseline EMA period, participants will receive brief (3-5 minutes) surveys on their mobile devices 6 times per day for 7-days via the MindLogger app. During the baseline EMA period, participants will also be asked to wear non-invasive chest-worn Holter monitors (Polar H10 Holter monitors) that will capture their heartrate variability data.

They will then complete the 4-week intervention (HRV bio or ED-JITAI treatment arms; see below), followed by a post-intervention 7-day EMA assessment period while they also wear the Holter monitors. Recruitment is expected to last for 1.5 years. In HRV-bio, participants will also complete a HRV biofeedback task via the Elite HRV app. In this intervention, participants will learn how to use their HRV data that they will see in real-time via the Elite HRV app to improve their HRV by engaging in an app-guided diaphragmatic breathing exercise. They will complete this exercise twice daily (morning, night). In ED-JITAI, participants will be prompted to complete focused, guided body scan tasks that will be sent to them via the MindLogger app. These guided tasks will be sent to them in the form of 1 of 3 brief (3-5 minute) videos via the MindLogger app. The body scans will be designed to promote participants' connection with, vs.

distancing/distraction from, feared ED sensations (e.g., hunger, satiety, bloating).

Participants will receive prompts to complete the body scans at times when they report via EMA that they are experiencing worse interoception than usual. "Worse interoception than usual" will be defined as participants' EMA-reported interoception scores during the intervention period that fall 1 SD or more above their baseline EMA-reported interoception levels.

Conditions

Eating Disorders

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: BASIC_SCIENCE
• Blinding Strategy: SINGLE

Study Groups

Group 1

randomized to HRV bio

Group Type: EXPERIMENTAL

HRV-bio

Intervention Type: BEHAVIORAL

participants will complete a HRV biofeedback task via the Elite HRV app. In this intervention, participants will learn how to use their HRV data that they will see in real-time via the Elite HRV app to improve their HRV by engaging in an app-guided diaphragmatic breathing exercise. They will complete this exercise twice daily (morning, night).

Group 2

Randomized to ED-JITAI treatment

Group Type: EXPERIMENTAL

ED-JITAI

Intervention Type: BEHAVIORAL

participants will be prompted to complete focused, guided body scan tasks that will be sent to them via the MindLogger app. These guided tasks will be sent to them in the form of 1 of 3 brief (3-5 minute) videos via the MindLogger app. The body scans will be designed to promote participants' connection with, vs.

distancing/distraction from, feared ED sensations (e.g., hunger, satiety, bloating).

Participants will receive prompts to complete the body scans at times when they report via EMA that they are experiencing worse interoception than usual. "Worse interoception than usual" will be defined as participants' EMA-reported interoception scores during the intervention period that fall 1 SD or more above their baseline EMA-reported interoception levels.

Interventions

HRV-bio

participants will complete a HRV biofeedback task via the Elite HRV app. In this intervention, participants will learn how to use their HRV data that they will see in real-time via the Elite HRV app to improve their HRV by engaging in an app-guided diaphragmatic breathing exercise. They will complete this exercise twice daily (morning, night).

Intervention Type: BEHAVIORAL

ED-JITAI

participants will be prompted to complete focused, guided body scan tasks that will be sent to them via the MindLogger app. These guided tasks will be sent to them in the form of 1 of 3 brief (3-5 minute) videos via the MindLogger app. The body scans will be designed to promote participants' connection with, vs.

distancing/distraction from, feared ED sensations (e.g., hunger, satiety, bloating).

Participants will receive prompts to complete the body scans at times when they report via EMA that they are experiencing worse interoception than usual. "Worse interoception than usual" will be defined as participants' EMA-reported interoception scores during the intervention period that fall 1 SD or more above their baseline EMA-reported interoception levels.

Intervention Type: BEHAVIORAL

Eligibility Criteria

Inclusion Criteria

• ages 18-64;
• no changes to ED treatment in the past 4-weeks;
• agree not to access other eating disorder treatments throughout the studies (unless warranted by a worsening of participants' symptoms during the study period; see Monitoring Participant Safety for more information);
• no bariatric surgery (prior or planned during the study period);
• no pregnancy or lactation (current or planned during the study);
• own an Apple or Android-brand iOS smartphone (which is required for compatibility with the apps used in this study;
• reside in the continental U.S.;
• meet Diagnostic and Statistical Manual of Mental Disorders-5-TR (DSM-5-TR) criteria for binge eating disorder (BED) or bulimia nervosa (BN), both of which include objective binge eating (i.e., consuming a larger amount of food than most people would eat in a similar period of time under similar circumstances with loss of control over eating during the episode) ≥1x/week over the past 3 months (APA, 2022). Single-item questions will determine eligibility via criteria 1-7. Criterion 8 for will be determined via the Eating Disorder Diagnostic Scale for the DSM-5 (EDDS-5; Stice et al., 2000, 2004), which has exhibited good sensitivity (.88), specificity (.98), and positive predictive power (.74) for detecting EDs among community samples (Stice et al., 2000, 2004).

Exclusion Criteria

• not between the ages of 18 and 64;
• had changes to ED treatment in the past 4 weeks;
• plan to access other eating disorder treatments throughout the study;
• received or are planning to undergo bariatric surgery during the study period;
• currently pregnant or lactating, or planning to become pregnant or lactate during the study period;
• no Apple or Android-brand iOS smartphone;
• do not live in the continental U.S.;
• do not currently experience BN or BED.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 64 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

University of Minnesota

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Carol Peterson, MD

Role: PRINCIPAL_INVESTIGATOR

University of Minnesota

Locations

University of Minnesota

Minneapolis, Minnesota, United States

Site Status: RECRUITING

Countries

United States

Central Contacts

Kelly Romano, PhD

Role: CONTACT

kromano@umn.edu

Facility Contacts

Kelly Romano

Role: primary

kromano@umn.edu

Provided Documents

Document Type: Informed Consent Form

View Document

Other Identifiers

the Bio-HEALTH Study

Identifier Type: -

Identifier Source: org_study_id