- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT00988273
Confocal Endomicroscopy During Endoscopy
Confocal Endomicroscopy in Patients Undergoing Endoscopy
The main objective of this study is to determine the role of epithelial cell homeostasis in the pathogenesis of intestinal diseases.
Background: Alterations in intestinal barrier function may play a significant role in the pathogenesis of chronic intestinal diseases such as inflammatory bowel disease (IBD). The intestinal epithelium functions as a barrier to the luminal contents, thereby preventing undesirable solutes, micro-organisms and other luminal antigens from entering the body. Confocal endomicroscopy has recently been shown that increased epithelial cell shedding may contribute to increased intestinal permeability, at least locally. In our study, we want to determine the contribution of epithelial cell shedding to intestinal permeability in vivo in patients with inflammatory bowel disease compared to controls.
Scope:
In inflammatory bowel disease patients and controls (patients undergoing endoscopy for other indications).
Methods:
We will perform confocal endoscopy during the patient's endoscopic procedure.
Procedure:
The patient will receive intravenous fluorescein, followed by confocal imaging of the gastrointestinal tissue. The images are captured on the computer. The proposed study will provide important insights into epithelial cell shedding as a contributor to altered intestinal permeability.
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Studientyp
Einschreibung (Tatsächlich)
Kontakte und Standorte
Studienorte
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Alberta
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Edmonton, Alberta, Kanada, T6G 2X8
- University of Alberta
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Probenahmeverfahren
Studienpopulation
Beschreibung
Inclusion Criteria for patients includes:
- Subjects over 18 years of age.
- Subjects undergoing endoscopic procedures such as gastroscopy, colonoscopy, endoscopic retrograde cholangiopancreatography and endoscopic ultrasound will all be included.
Exclusion Criteria:
- Under 18 years of age.
- Cognitively impaired.
- Residing in institutions (eg. prison, extended care facility)
- Employees of research(s)' organization
- In emergency or life-threatening situations
- Have language barriers (eg. illiterate, not English-speaking, dysphasic) preventing adequate consent process
- Resides in another country
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
Kohorten und Interventionen
Gruppe / Kohorte |
Intervention / Behandlung |
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Control
In patients undergoing endoscopy for indications other than Crohn's disease or ulcerative colitis
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Patients will undergo confocal endomicroscopy during their endoscopy, and findings of the confocal endomicroscopy in the control group will be compared to the diseased group.
Andere Namen:
Patients will undergo confocal endomicroscopy during their endoscopy, and findings of the confocal endomicroscopy in the diseased group will be compared to the control.
Andere Namen:
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Diseased group
Patients with Crohn's disease or ulcerative colitis undergoing endoscopy.
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Patients will undergo confocal endomicroscopy during their endoscopy, and findings of the confocal endomicroscopy in the control group will be compared to the diseased group.
Andere Namen:
Patients will undergo confocal endomicroscopy during their endoscopy, and findings of the confocal endomicroscopy in the diseased group will be compared to the control.
Andere Namen:
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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The intestinal morphology as visualized using confocal laser endomicroscopy
Zeitfenster: 3 years.
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Intestinal morphology as measured by epithelial cells and gaps, presence of bacteria in the epithelial lining and the lamina propria will be quantitated.
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3 years.
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Clinical outcome and pathologic/molecular correlation with intestinal morphology
Zeitfenster: 3 years.
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The clinical outcomes of inflammatory bowel patients, location and severity of their disease, and correlation with molecular studies including tissue cytokine levels will be studied.
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3 years.
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Mitarbeiter und Ermittler
Sponsor
Publikationen und hilfreiche Links
Allgemeine Veröffentlichungen
- Liu JJ, Wong K, Thiesen AL, Mah SJ, Dieleman LA, Claggett B, Saltzman JR, Fedorak RN. Increased epithelial gaps in the small intestines of patients with inflammatory bowel disease: density matters. Gastrointest Endosc. 2011 Jun;73(6):1174-80. doi: 10.1016/j.gie.2011.01.018. Epub 2011 Mar 11.
- Turcotte JF, Wong K, Mah SJ, Dieleman LA, Kao D, Kroeker K, Claggett B, Saltzman JR, Wine E, Fedorak RN, Liu JJ. Increased epithelial gaps in the small intestine are predictive of hospitalization and surgery in patients with inflammatory bowel disease. Clin Transl Gastroenterol. 2012 Jul 26;3(7):e19. doi: 10.1038/ctg.2012.13.
- Liu JJ, Davis EM, Wine E, Lou Y, Rudzinski JK, Alipour M, Boulanger P, Thiesen AL, Sergi C, Fedorak RN, Muruve D, Madsen KL, Irvin RT. Epithelial cell extrusion leads to breaches in the intestinal epithelium. Inflamm Bowel Dis. 2013 Apr;19(5):912-21. doi: 10.1097/MIB.0b013e3182807600.
- Turcotte JF, Kao D, Mah SJ, Claggett B, Saltzman JR, Fedorak RN, Liu JJ. Breaks in the wall: increased gaps in the intestinal epithelium of irritable bowel syndrome patients identified by confocal laser endomicroscopy (with videos). Gastrointest Endosc. 2013 Apr;77(4):624-30. doi: 10.1016/j.gie.2012.11.006. Epub 2013 Jan 26.
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Primärer Abschluss (Tatsächlich)
Studienabschluss (Tatsächlich)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- 20090821300
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