- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT01574209
Gut Peptides and Intestinal Permeability in Celiac Disease and Irritable Bowel Syndrome (PPCD)
8. november 2012 opdateret af: Giuseppe Riezzo, Azienda Ospedaliera Specializzata in Gastroenterologia Saverio de Bellis
Gut Peptides and Intestinal Permeability in Celiac Patients, Healthy Subjects and IBS Patients: a Comparative Study
It is well known that the intestinal barrier is altered in celiac disease (CD), an autoimmune disease that develops in genetically predisposed subjects exposed to ingestion of wheat gliadin and of related prolamines of barley and rye.
More recently, defective epithelial barrier has been implicated in the pathogenesis of other conditions such as irritable bowel syndrome (IBS).
At present IBS is still considered a functional condition although low-grade inflammation has been associated with its manifestation, particularly that following infection.
Different substances have been implicated in the (dis)regulation of intestinal barrier, among them zonulin seems to play a key role.
Other gastrointestinal peptides are GPL-2, Ghrelin, and Epidermal growth factor (EGF).
In order to shed light on the hormonal regulation of intestinal barrier function in celiac patients before undergoing a gluten free diet and possible differences with those of IBS patients, in the present study the investigators will apply the non-invasive lactulose/mannitol permeability test toward the evaluation of intestinal damage.
The pattern of intestinal permeability and the GI peptides concentration will be compared in celiac patients, IBS patients and healthy controls.
Studieoversigt
Status
Afsluttet
Betingelser
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
70
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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Bari
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Castellana Grotte, Bari, Italien, 70013
- National Institute of Digestive Diseases IRCCS "S. de Bellis"
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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
18 år til 65 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
Outpatients recruited in IRCCS "S. de Bellis"
Beskrivelse
Inclusion criteria of celiac disease patients:
- Diagnosis of CD was based on the detection of IgA antiendomysial and IgA antitissue transglutaminase antibodies in serum
- Diagnosis must be confirmed by a small intestinal biopsy obtained at the time of gastrointestinal endoscopy.
- All patients must show Marsh 3 grade villous atrophy at the time of the diagnosis.
Inclusion criteria of IBS patients.
- Subjects suffering from irritable bowel syndrome according to the Rome III criteria.
- Availability of at least one GI imaging study during the last five years (colonoscopy, sigmoidoscopy, abdominal ultrasound, barium enema)
Exclusion criteria for both the above groups:
- None were taking anti-inflammatory drugs (including mast cell stabilisers, histamine antagonists, anticholinergics, anti-diarrhoea medication, probiotics, immunosuppressants and steroids)
- Presence of organic syndrome, including food allergy, atopy and severe clinical depression or anxiety.
- Abnormal laboratory data or thyroid function
- Major abdominal surgery Healthy subjects will be recruited in the administrative staff of the Institute after thorough exclusion of GI symptoms.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: Case-Control
- Tidsperspektiver: Fremadrettet
Kohorter og interventioner
Gruppe / kohorte |
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Celiac Disease
Patients suffering from coeliac diseases confirmed by small intestinal biopsy
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IBS patients
Patients suffering from irritable bowel syndrome (IBS) according to Rome III criteria
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Sunde emner
Sunde forsøgspersoner som kontrolgruppe
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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Plasma concentrations of GI peptides (Zonulin, GLP-2, Ghrelin and EGF)
Tidsramme: within one month after the enrollment
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within one month after the enrollment
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Intestinal permeability
Tidsramme: within one month after the enrollment
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The detection and measurement of two sugar probes, lactulose (La) and mannitol (Ma), in the urine will be performed by chromatographic analysis.
For each sample the percentage of ingested La and Ma in urine will be evaluated and their ratio (La-Ma) will be calculated.
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within one month after the enrollment
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Efterforskere
- Ledende efterforsker: Giuseppe Riezzo, MD, National Institute of Digestive Diseases IRCCS "S. de Bellis"
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Generelle publikationer
- Fasano A. Zonulin and its regulation of intestinal barrier function: the biological door to inflammation, autoimmunity, and cancer. Physiol Rev. 2011 Jan;91(1):151-75. doi: 10.1152/physrev.00003.2008.
- Cani PD, Possemiers S, Van de Wiele T, Guiot Y, Everard A, Rottier O, Geurts L, Naslain D, Neyrinck A, Lambert DM, Muccioli GG, Delzenne NM. Changes in gut microbiota control inflammation in obese mice through a mechanism involving GLP-2-driven improvement of gut permeability. Gut. 2009 Aug;58(8):1091-103. doi: 10.1136/gut.2008.165886. Epub 2009 Feb 24.
- Gecse K, Roka R, Sera T, Rosztoczy A, Annahazi A, Izbeki F, Nagy F, Molnar T, Szepes Z, Pavics L, Bueno L, Wittmann T. Leaky gut in patients with diarrhea-predominant irritable bowel syndrome and inactive ulcerative colitis. Digestion. 2012;85(1):40-6. doi: 10.1159/000333083. Epub 2011 Dec 14.
- Menard S, Lebreton C, Schumann M, Matysiak-Budnik T, Dugave C, Bouhnik Y, Malamut G, Cellier C, Allez M, Crenn P, Schulzke JD, Cerf-Bensussan N, Heyman M. Paracellular versus transcellular intestinal permeability to gliadin peptides in active celiac disease. Am J Pathol. 2012 Feb;180(2):608-15. doi: 10.1016/j.ajpath.2011.10.019. Epub 2011 Nov 24.
- Malandrino N, Capristo E, Farnetti S, Leggio L, Abenavoli L, Addolorato G, Gasbarrini G. Metabolic and nutritional features in adult celiac patients. Dig Dis. 2008;26(2):128-33. doi: 10.1159/000116770. Epub 2008 Apr 21.
- Linsalata M, Riezzo G, D'Attoma B, Clemente C, Orlando A, Russo F. Noninvasive biomarkers of gut barrier function identify two subtypes of patients suffering from diarrhoea predominant-IBS: a case-control study. BMC Gastroenterol. 2018 Nov 6;18(1):167. doi: 10.1186/s12876-018-0888-6.
- Russo F, Chimienti G, Clemente C, D'Attoma B, Linsalata M, Orlando A, De Carne M, Cariola F, Semeraro FP, Pepe G, Riezzo G. Adipokine profile in celiac patients: differences in comparison with patients suffering from diarrhea-predominant IBS and healthy subjects. Scand J Gastroenterol. 2013 Dec;48(12):1377-85. doi: 10.3109/00365521.2013.845907. Epub 2013 Oct 28.
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
1. april 2012
Primær færdiggørelse (Faktiske)
1. september 2012
Studieafslutning (Faktiske)
1. oktober 2012
Datoer for studieregistrering
Først indsendt
28. marts 2012
Først indsendt, der opfyldte QC-kriterier
5. april 2012
Først opslået (Skøn)
10. april 2012
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
9. november 2012
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
8. november 2012
Sidst verificeret
1. november 2012
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- CD5X1000
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
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