Development of a Noninvasive Metric to Measure Small Bowel Sensation - The Small Intestine Stress Test
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Taylor Hines
- Telefonnummer: 507-538-9959
- E-Mail: hines.taylor@mayo.edu
Studienorte
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Minnesota
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Rochester, Minnesota, Vereinigte Staaten, 55905
- Rekrutierung
- Mayo Clinic
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Kontakt:
- Taylor Hines
- Telefonnummer: 507-538-9959
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-
Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- No current gastrointestinal symptoms
- No prior history of GI disorders, in particular DGBIs
- Ability to provide informed consent
- Ability to participate in study procedures
- Absence of other diseases (structural or metabolic) which could interfere with interpretation of the study results
- For females, must not be pregnant or lactating due to radiation exposure.
- Stable doses of thyroid replacement, estrogen replacement, low-dose aspirin for cardioprotection, and birth control are permissible.
Exclusion Criteria
- Subjects on any medications that impact transit or integrity of small bowel mucosal barrier (e.g. chronic NSAIDS) of the GI tract will be excluded.
- Patients with prior bowel surgery (not including appendectomy and cholecystectomy)
- Patients who may have altered sensation (central sensitization or conditions that may induce bowel hyperalgesia) based on PI review of medical history (ie, fibromyalgia, endometriosis, chronic pelvic pain)
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Diagnose
- Zuteilung: N / A
- Interventionsmodell: Einzelgruppenzuweisung
- Maskierung: Keine (Offenes Etikett)
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
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Experimental: Healthy Volunteers Receiving Mannitol Solutions
Healthy adult volunteers will receive all three mannitol solution osmolarities-76 milliosmol (mOsm/L), 189 mOsm/L, and 325 mOsm/L-on three separate testing occasions spaced at least 5 days apart.
Each solution will be administered orally as 500 mL radiolabeled with Pentetate Indium Disodium In-111 (111Indium-DTPA).
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Participants will ingest 500 mL of mannitol solution at 76 mOsm/L radiolabeled with 111Indium-DTPA during one testing visit.
Participants will ingest 500 mL of mannitol solution at 189 mOsm/L radiolabeled with 111Indium-DTPA during one testing visit.
Participants will ingest 500 mL of mannitol solution at 325 mOsm/L radiolabeled with 111Indium-DTPA during one testing visit.
Scintigraphy will be used to track gastric emptying, small bowel transit, and colonic filling of the radiolabeled mannitol solution during each testing visit.
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Peak Gastrointestinal Symptom Severity During Small Bowel Transit Following 76 mOsm/L Mannitol Solution Ingestion
Zeitfenster: At baseline and at 15-minute intervals beginning 30 minutes after ingestion through 180 minutes post-ingestion.
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Peak gastrointestinal symptom severity will be assessed using a 7-point Likert symptom scale after ingestion of radiolabeled mannitol solution.
Symptoms assessed include abdominal pain or discomfort, nausea, bloating, distension, borborygmi, diarrhea, urgency, and related gastrointestinal symptoms.
The peak symptom score observed during the small bowel phase will be identified.
The small bowel phase is defined as the period during which scintigraphy confirms radiolabeled solution in the small bowel and before more than 25% of tracer has reached the ascending colon.
Scores range from 1 to 7, with higher scores indicating greater symptom severity.
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At baseline and at 15-minute intervals beginning 30 minutes after ingestion through 180 minutes post-ingestion.
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Peak Gastrointestinal Symptom Severity During Small Bowel Transit Following 189 mOsm/L Mannitol Solution Ingestion
Zeitfenster: At baseline and at 15-minute intervals beginning 30 minutes after ingestion through 180 minutes post-ingestion.
|
Peak gastrointestinal symptom severity will be assessed using a 7-point Likert symptom scale after ingestion of radiolabeled mannitol solution.
Symptoms assessed include abdominal pain or discomfort, nausea, bloating, distension, borborygmi, diarrhea, urgency, and related gastrointestinal symptoms.
The peak symptom score observed during the small bowel phase will be identified.
The small bowel phase is defined as the period during which scintigraphy confirms radiolabeled solution in the small bowel and before more than 25% of tracer has reached the ascending colon.
Scores range from 1 to 7, with higher scores indicating greater symptom severity.
|
At baseline and at 15-minute intervals beginning 30 minutes after ingestion through 180 minutes post-ingestion.
|
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Peak Gastrointestinal Symptom Severity During Small Bowel Transit Following 325 mOsm/L Mannitol Solution Ingestion
Zeitfenster: At baseline and at 15-minute intervals beginning 30 minutes after ingestion through 180 minutes post-ingestion.
|
Peak gastrointestinal symptom severity will be assessed using a 7-point Likert symptom scale after ingestion of radiolabeled mannitol solution.
Symptoms assessed include abdominal pain or discomfort, nausea, bloating, distension, borborygmi, diarrhea, urgency, and related gastrointestinal symptoms.
The peak symptom score observed during the small bowel phase will be identified.
The small bowel phase is defined as the period during which scintigraphy confirms radiolabeled solution in the small bowel and before more than 25% of tracer has reached the ascending colon.
Scores range from 1 to 7, with higher scores indicating greater symptom severity.
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At baseline and at 15-minute intervals beginning 30 minutes after ingestion through 180 minutes post-ingestion.
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Peak Abdominal Pain Intensity Following 76 mOsm/L Mannitol Solution
Zeitfenster: Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
Peak abdominal pain intensity will be assessed after ingestion of 500 mL radiolabeled 76 mOsm/L mannitol solution using the Kohn Reactivity Scale.
The peak pain intensity score observed during the small bowel phase will be identified.
The small bowel phase is defined as the period during which scintigraphy confirms radiolabeled solution in the small bowel and before more than 25% of tracer has reached the ascending colon.
Higher scores indicate greater pain intensity.
|
Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
|
Peak Abdominal Pain Intensity Following 189 mOsm/L Mannitol Solution
Zeitfenster: Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
Peak abdominal pain intensity will be assessed after ingestion of 500 mL radiolabeled 189 mOsm/L mannitol solution using the Kohn Reactivity Scale.
The peak pain intensity score observed during the small bowel phase will be identified.
The small bowel phase is defined as the period during which scintigraphy confirms radiolabeled solution in the small bowel and before more than 25% of tracer has reached the ascending colon.
Higher scores indicate greater pain intensity.
|
Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
|
Peak Abdominal Pain Intensity Following 325 mOsm/L Mannitol Solution
Zeitfenster: Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
Peak abdominal pain intensity will be assessed after ingestion of 500 mL radiolabeled 325 mOsm/L mannitol solution using the Kohn Reactivity Scale.
The peak pain intensity score observed during the small bowel phase will be identified.
The small bowel phase is defined as the period during which scintigraphy confirms radiolabeled solution in the small bowel and before more than 25% of tracer has reached the ascending colon.
Higher scores indicate greater pain intensity.
|
Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
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Peak Abdominal Pain Unpleasantness Following 76 mOsm/L Mannitol Solution
Zeitfenster: Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
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Peak abdominal pain unpleasantness will be assessed after ingestion of 500 mL radiolabeled 76 mOsm/L mannitol solution using the Kohn Reactivity Scale.
The peak pain unpleasantness score observed during the small bowel phase will be identified.
The small bowel phase is defined as the period during which scintigraphy confirms radiolabeled solution in the small bowel and before more than 25% of tracer has reached the ascending colon.
Higher scores indicate greater pain unpleasantness.
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Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
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Peak Abdominal Pain Unpleasantness Following 189 mOsm/L Mannitol Solution
Zeitfenster: Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
Peak abdominal pain unpleasantness will be assessed after ingestion of 500 mL radiolabeled 189 mOsm/L mannitol solution using the Kohn Reactivity Scale.
The peak pain unpleasantness score observed during the small bowel phase will be identified.
The small bowel phase is defined as the period during which scintigraphy confirms radiolabeled solution in the small bowel and before more than 25% of tracer has reached the ascending colon.
Higher scores indicate greater pain unpleasantness.
|
Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
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Peak Abdominal Pain Unpleasantness Following 325 mOsm/L Mannitol Solution
Zeitfenster: Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
Peak abdominal pain unpleasantness will be assessed after ingestion of 500 mL radiolabeled 325 mOsm/L mannitol solution using the Kohn Reactivity Scale.
The peak pain unpleasantness score observed during the small bowel phase will be identified.
The small bowel phase is defined as the period during which scintigraphy confirms radiolabeled solution in the small bowel and before more than 25% of tracer has reached the ascending colon.
Higher scores indicate greater pain unpleasantness.
|
Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
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Change in Gastrointestinal Symptom Severity Following 76 mOsm/L Mannitol Solution
Zeitfenster: Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
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Gastrointestinal symptom severity will be assessed after ingestion of 500 mL radiolabeled 76 mOsm/L mannitol solution using a modified Gastric Symptom Severity Scale.
Symptoms assessed include abdominal pain or discomfort, nausea, bloating, distension, borborygmi, diarrhea, loose stools, urgency, and related gastrointestinal symptoms.
Scores range from 1 to 7, with higher scores indicating greater symptom severity.
|
Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
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Change in Gastrointestinal Symptom Severity Following 189 mOsm/L Mannitol Solution
Zeitfenster: Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
Gastrointestinal symptom severity will be assessed after ingestion of 500 mL radiolabeled 189 mOsm/L mannitol solution using a modified Gastric Symptom Severity Scale.
Symptoms assessed include abdominal pain or discomfort, nausea, bloating, distension, borborygmi, diarrhea, loose stools, urgency, and related gastrointestinal symptoms.
Scores range from 1 to 7, with higher scores indicating greater symptom severity.
|
Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
|
Change in Gastrointestinal Symptom Severity Following 325 mOsm/L Mannitol Solution
Zeitfenster: Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
|
Gastrointestinal symptom severity will be assessed after ingestion of 500 mL radiolabeled 325 mOsm/L mannitol solution using a modified Gastric Symptom Severity Scale.
Symptoms assessed include abdominal pain or discomfort, nausea, bloating, distension, borborygmi, diarrhea, loose stools, urgency, and related gastrointestinal symptoms.
Scores range from 1 to 7, with higher scores indicating greater symptom severity.
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Baseline, then every 15 minutes from 30 minutes through 180 minutes after ingestion
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Hauptermittler: Xiao Jing Wang, MD, Mayo Clinic
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- 25-013906
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Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
Produkt, das in den USA hergestellt und aus den USA exportiert wird
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