ClinicalTrials.gg
RecruitingNCT06631729Updated Sep 29, 2026

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)

An interventional study of HRV-bio and ED-JITAI in Eating Disorders, sponsored by University of Minnesota. Recruiting at 1 site in United States. Open to participants aged 18 Years to 64 Years. Per ClinicalTrials.gov, last updated 2026-09-29.

Sponsored by University of Minnesota · Not applicable, Interventional, and Basic science

From the registry’s dates

  • Started Jan 2025; still recruiting 1 year 9 months later.
Updated Sep 29, 2026Enrollment updatedPrimary outcomes revisedGo to Updates ↓

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Phase
Not applicable
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Years to 64 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 259 studies in Feeding and Eating Disorders with a site in United States — 36 open to participants now, 50 under way, none of them phase 3. Feeding and Eating Disorders · United States.

Planned enrollment
88th of 215
80 · median 66
Started
2025
with 11 others
No phase
169 of 259
29 open now
Primary completion
2026-12
later than 10 of 49 live
Registered
231st of 259
by date

Among the 259 studies in Feeding and Eating Disorders with a site in United States, this one is the 88th largest by planned enrollment of the 215 interventional ones that give a count, is one of 12 that started in 2025, is one of 169 with no phase, reaches primary completion later than 10 of the 49 other live ones, and was the 231st registered.

Feeding and Eating Disorders

645 studies on the registry are indexed under Feeding and Eating Disorders; 153 are open to participants now.

Browse Feeding and Eating Disorders studies →

Open to participants now

36 of the 259 studies in Feeding and Eating Disorders with a site in United States are open now. Recruiting first, the newest first:

30 more — sign in →

All 36 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 100 Feeding and Eating Disorders studies recruiting now, 31 (31%) set no upper age limit and 67 (67%) stop at 75 or younger; 45 take children under 18; 20 take healthy volunteers.

This study: 18 Years to 64 Years · all sexes · no healthy volunteers.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 259 studies in Feeding and Eating Disorders with a site in United States, or all of them as a file.
02

Study 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.

03

Conditions studied

  • Eating Disorders
04

Who can participate

Ages eligible
18 Years to 64 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

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 -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

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.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

DSM diagnostic criteria

The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.

05

Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
80 participants (estimated)

Study arms

  • Experimental
    Group 1

    randomized to HRV bio

    Behavioral: HRV-bio

  • Experimental
    Group 2

    Randomized to ED-JITAI treatment

    Behavioral: ED-JITAI

Interventions

  • BehavioralHRV-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).

  • BehavioralED-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.

06

What researchers measure

Primary outcomes

  1. Momentary binge eating

    "Momentary binge eating" is operationalized as an eating episode in which participants report that they consumed an unusually large amount of food, given the circumstances, while also experiencing a loss of control over their eating at that time. This construct will be assessed at the momentary (or state) level of analysis using ecological momentary assessment.

    Time frame: baseline through week 6 of the study

  2. Momentary purging behaviors

    "Momentary purging behaviors" include the following behaviors that individuals may engage in at a given moment as maladaptive attempts of preventing weight gain or losing weight: self-induced vomiting; maladaptive use of laxatives; maladaptive use of diuretics; fasting (e.g., no food for \>8 hours, skipping meals); excessive exercise. These behaviors will be assessed at the momentary (or state) level of analysis using ecological momentary assessment.

    Time frame: baseline through week 6 of the study

  3. Momentary self-reported interoceptive sensibility

    "Momentary self-reported interoceptive sensibility" is operationalized as individuals' subjective (selfreported) perceptions of their ability to sense and connect with their internal body sensations at a given moment, such as hunger, satiety, heartbeat, pain, bloating, etc. This construct will be assessed at the momentary (or state) level of analysis using ecological momentary assessment.

    Time frame: baseline through week 6 of the study

  4. Treatment Compliance

    For participants in the HRV-bio intervention arm, treatment compliance is operationalized as the number of HRV-biofeedback tasks that participants complete during the 4-week intervention period ÷ the total possible number of HRV-biofeedback tasks. For participants in the ED-JITAI intervention arm, treatment compliance is operationalized as the number of app-prompted focused body scans that participants complete during the 4-week intervention period ÷ the total possible number of focused body scans that they are prompted to complete. The total possible number of focused body scans will differ for each participant, as they will only receive prompts to complete these scans when they report via ecological momentary assessment that they are experiencing worse interoception than usual (with "usual" determined based on their personal mean interoception values that will be obtained during the pre-treatment ecological momentary assessment period).

    Time frame: baseline through week 6 of the study

  5. Attrition

    Attrition is operationalized as the total number of participants who stop participating in the 4-week intervention prematurely, as evidenced by a complete cessation of engaging in the intervention tasks (HRV-biofeedback task or focused body scan prompts), or who are otherwise lost to follow-up.

    Time frame: baseline through week 6 of the study

Secondary outcomes

  1. Heartrate variability

    Heartrate variability is a generalized neurobiological indicator of interoception (the ability to sense and connect with one's internal bodily sensations) and autonomic nervous system functioning. It will be assessed using Holter monitors and smartwatches that capture fluctuations in the time intervals between adjacent heartbeats.

    Time frame: baseline through week 6 of the study

07

Study locations

1 of 1 sites recruiting
08

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jan 2025 (actual). Primary completion is estimated for Dec 2026, 23 months after the start.

Of 269 non-industry interventional studies with no phase under Feeding and Eating Disorders, half reached primary completion within 28 months of starting (the median), counting those still running; a quarter within 14 and three quarters within 49. This study's planned 23 months is below that.

Counting every sponsor, half of 274 studies reached it within 28 months; a quarter within 14 and three quarters within 49.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 29, 2024
First posted
Oct 8, 2024
StartActual
Jan 15, 2025
Primary completionEst.
Dec 31, 2026
CompletionEst.
Dec 31, 2026
Last update
Sep 29, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Enrollment
144→80
Sep 29, 2026
Primary outcomes
5 time frame changed, 1 removed
What changed in the outcomes
  • RemovedHeartrate variabilityTime frame: baseline, 5 weeks
  • Time frameMomentary binge eatingbaseline, 5 weeks → baseline through week 6 of the study
  • Time frameMomentary purging behaviorsbaseline, 5 weeks → baseline through week 6 of the study
  • Time frameMomentary self-reported interoceptive sensibilitybaseline, 5 weeks → baseline through week 6 of the study
  • Time frameTreatment Compliancebaseline, 5 weeks → baseline through week 6 of the study
  • Time frameAttritionbaseline, 5 weeks → baseline through week 6 of the study
Sep 29, 2026
Secondary outcomes
1 added
What changed in the outcomes
  • AddedHeartrate variabilityTime frame: baseline through week 6 of the study
Sep 29, 2026
Show all 1 update
  1. Sep 29, 2026
    Enrollment 144→80
    Primary outcomes 5 time frame changed, 1 removed
    What changed in the outcomes
    • RemovedHeartrate variabilityTime frame: baseline, 5 weeks
    • Time frameMomentary binge eatingbaseline, 5 weeks → baseline through week 6 of the study
    • Time frameMomentary purging behaviorsbaseline, 5 weeks → baseline through week 6 of the study
    • Time frameMomentary self-reported interoceptive sensibilitybaseline, 5 weeks → baseline through week 6 of the study
    • Time frameTreatment Compliancebaseline, 5 weeks → baseline through week 6 of the study
    • Time frameAttritionbaseline, 5 weeks → baseline through week 6 of the study
    Secondary outcomes 1 added
    What changed in the outcomes
    • AddedHeartrate variabilityTime frame: baseline through week 6 of the study
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT06631729
Responsible party
Sponsor
First posted
Oct 8, 2024
Start date
Jan 15, 2025
Primary completion
Dec 31, 2026 (estimated)
Completion
Dec 31, 2026 (estimated)
Last update
Sep 29, 2026

Study contacts

Kelly Romano, PhD
Contact
kromano@umn.edu
Carol Peterson, MD
principal investigator · University of Minnesota

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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