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Identifying Multidimensional Signatures of Gastric Interoception in Functional Dyspepsia (IMAGINE)

14. august 2026 opdateret af: Helen Burton-Murray, PHD, Massachusetts General Hospital
This study is being conducted to investigate gut-brain communication in individuals with functional dyspepsia and anorexia nervosa. The hope is that what the investigators learn from this study will improve the understanding the conditions better to improve treatments.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

150

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

  • Forenede Stater
    • Massachusetts
      • Boston, Massachusetts, Forenede Stater, 02114
        • Rekruttering
        • Massachusetts General Hospital
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ja

Beskrivelse

Participant Inclusion Criteria--

Functional Dyspepsia Group:

  • Males and females; ages 18-65 years
  • Rome V functional dyspepsia post-prandial distress syndrome subtype
  • Negative upper endoscopy or upper GI series to rule out structural/organic cause for FD
  • greater than or equal to 5.5 gut interoceptive awareness score (by VSI awareness subscale)
  • Fluent in English
  • Willing and able to provide informed consent
  • Stable dose for 30 days prior to Visit 1 if on a neuropsychiatric medication (e.g., TCA, SNRI, SSRI mirtazapine, atypical antipsychotic, gabapentin, buspirone, pregabalin)
  • No current plans to initiate a new or change dosing on a neuropsychiatric medication within the study period

Anorexia Nervosa Group:

  • Males and females; ages 18-65 years
  • DSM-5 anorexia restricting-type by the Eating Disorder Module in the Diagnostic Interview for Mood, Anxiety, and OCD and related Neuropsychiatric Disorders (DIAMOND)
  • greater than or equal to 5.5 gut interoceptive awareness score (by VSI awareness subscale)
  • Fluent in English
  • Willing and able to provide informed consent
  • Stable dose for 30 days prior to Visit 1 if on an SSRI
  • No current plans to initiate a new neuromodulator
  • No current plans to initiate a new SSRI or change dosing on an SSRI

Healthy Controls:

  • Males and females; ages 18-65 years
  • BMI greater than or equal to 18.5 kg/m2
  • Fluent in English
  • Willing and able to provide informed consent

Participant Exclusion Criteria--

Functional Dyspepsia Group:

  • Presence of other conditions that could explain the patient's symptoms by medical chart:

    • Pyloric or intestinal obstruction (by EGD, UGI, or Abdominal CT)
    • Active H.pylori (by CLO test or stool antigen test)
    • Active inflammatory bowel disease
    • Eosinophilic gastroenteritis or eosinophilic esophagitis
    • Acute renal failure
    • Chronic renal failure (serum creatinine >3 mg/dL) and/or on hemodialysis or peritoneal dialysis
    • Acute liver failure
    • Any acute gastrointestinal process
    • Any plausible structural or metabolic causes
    • Heartburn as predominant symptom
    • History of peptic ulcer
  • Symptom resolution with antisecretory therapy (PPI use for other reasons that did not resolve FD symptoms will be allowed)
  • Endorses any contraindications to MRI
  • Body weight of 450 lbs or greater or BMI of 50 kg/m2 or greater (limit of MRI table)
  • Allergy to pineapple (used in the test meal during MRI)
  • History of GI tract surgery or any serious medical condition (e.g., cancer)
  • Pregnancy/breastfeeding within the last 8 weeks
  • Uncontrolled diabetes (indicated by HbA1c greater than or equal to 7%) by chart
  • Narcotic analgesics greater than three days per week
  • Cannabinoid use greater than three days per week
  • Intellectual disability by history
  • Illiteracy
  • History of weight/shape-based eating disorder including anorexia nervosa by DIAMOND
  • Current binge eating by DIAMOND
  • Current self-induced vomiting by DIAMOND
  • Current laxative or diuretic misuse by DIAMOND
  • Current substance/alcohol use disorder within past year by DIAMOND
  • Current/history of psychosis by DIAMOND
  • Current mania by DIAMOND
  • Active suicidal ideation by modified DIAMOND abbreviated suicide module; passive suicidal ideation is allowed
  • Inability or unwillingness to consume food by mouth
  • Inability to provide informed consent

Anorexia Nervosa Group:

  • Diagnosis of chronic gastrointestinal disorder
  • Rome V functional dyspepsia
  • Endorses any contraindications to MRI
  • Body weight of 450 lbs or greater or BMI of 50 kg/m2 or greater (limit of MRI table)
  • Allergy to pineapple (used in the test meal during MRI)
  • History of GI tract surgery or any serious medical condition (e.g., cancer)
  • Pregnancy/breastfeeding within the last 8 weeks
  • Uncontrolled diabetes (indicated by HbA1c greater than or equal to 7%) by chart
  • Narcotic analgesics greater than three days per week
  • Cannabinoid use greater than three days per week
  • Intellectual disability by history
  • Illiteracy
  • Current binge eating by DIAMOND
  • Current self-induced vomiting by DIAMOND
  • Current laxative or diuretic misuse by DIAMOND
  • Current substance/alcohol use disorder within past year by DIAMOND
  • Current/history of psychosis by DIAMOND
  • Current mania by DIAMOND
  • Active suicidal ideation by DIAMOND abbreviated suicide module; passive suicidal ideation is allowed
  • Inability or unwillingness to consume food by mouth
  • Inability to provide informed consent
  • Current use of neuropsychiatric medication other than an SSRI (e.g., TCA, SNRI, mirtazapine, atypical antipsychotic, gabapentin, buspirone, pregabalin)

Healthy Controls:

  • Diagnosis of chronic gastrointestinal or pain disorder
  • Rome V functional dyspepsia
  • greater than or equal to 5.5 gut interoceptive awareness score (by VSI awareness subscale)
  • Current use of a medication known to influence gastric sensorimotor functions (including neuromodulators and SSRIs)
  • Active psychiatric disorder including a feeding/eating disorder by DIAMOND
  • Endorses any contraindications to MRI
  • Body weight of 450 lbs or greater or BMI of 50 kg/m2 or greater (limit of MRI table)
  • Allergy to pineapple (used in the test meal during MRI)
  • History of GI tract surgery or any serious medical condition (e.g., cancer)
  • Pregnancy/breastfeeding within the last 8 weeks
  • Uncontrolled diabetes (indicated by HbA1c greater than or equal to 7%) by chart
  • Narcotic analgesics greater than three days per week
  • Cannabinoid use greater than three days per week
  • Intellectual disability by history
  • Illiteracy
  • Current binge eating by DIAMOND
  • Current self-induced vomiting by DIAMOND
  • Current laxative or diuretic misuse by DIAMOND
  • Current substance/alcohol use disorder within past year by DIAMOND
  • Current/history of psychosis by DIAMOND
  • Current mania by DIAMOND
  • Active suicidal ideation by DIAMOND modified suicide module; passive suicidal ideation is allowed
  • Inability or unwillingness to consume food by mouth
  • Inability to provide informed consent

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Grundvidenskab
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Andet: Functional Dyspepsia, Healthy Control, Anorexia Nervosa
Andet: Functional magnetic resonance imaging (fMRI)
Pineapple pudding snack, with pre- and post-snack fMRI

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Visual interoception task
Tidsramme: Day 1, visit 1, 30-minute scan and visit 2 (within approximately two weeks of day 1), 30-minute scan
The study team will be investigating brain activity and connectivity during an interoception task. This will be measured via functional magnetic resonance imaging (fMRI) which is able to measure blood flow to regions of the brain.
Day 1, visit 1, 30-minute scan and visit 2 (within approximately two weeks of day 1), 30-minute scan
Resting state connectivity
Tidsramme: Visit 2 (second visit, within approximately 2 weeks of day 1 of the study), 60 minute scan.
Change in brain activity during rest pre and post prandially using functional magnetic resonance imaging (fMRI).
Visit 2 (second visit, within approximately 2 weeks of day 1 of the study), 60 minute scan.
Gastric peristaltic velocity
Tidsramme: 30 minutes (only in Visit 2, within approximately two weeks of Visit 1)
MRI-derived gastric motility outcome
30 minutes (only in Visit 2, within approximately two weeks of Visit 1)

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Massachusetts General Hospital

Samarbejdspartnere

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Efterforskere

  • Ledende efterforsker: Helen Burton-Murray, PhD, Massachusetts General Hospital

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

16. marts 2026

Primær færdiggørelse (Anslået)

1. marts 2030

Studieafslutning (Anslået)

1. marts 2031

Datoer for studieregistrering

Først indsendt

29. juni 2026

Først indsendt, der opfyldte QC-kriterier

14. august 2026

Først opslået (Faktiske)

19. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

19. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

14. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2025P001856
  • R01DK145599 (U.S. NIH-bevilling/kontrakt)

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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