- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT01330251
The Effect of Gastric Bypass Surgery on Diabetes
Laihdutusleikkauksen Vaikutus Diabetekseen
This study will investigate the effects of gastric bypass surgery on type II diabetes. The study will recruit patients with type II diabetes having Roux-en-Y gastric bypass, patients without type II diabetes having Roux-en-Y gastric bypass, and control subjects (patients having gastroscopy, but no surgery). Targeted enrollment is 30 patients per group. Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy. Meal test with incretin measurements, and feces and blood samplings are performed before and after surgery
Hypotheses are:
- The pathogenesis of type II diabetes is linked to changes in the expression of intestinal endocrine cells
- The changes in the incretine excretion after the gastric bypass surgery partly explain the amelioration of type II diabetes
- The oxidation of lipoprotein is diminished after the gastric bypass surgery slowing the development of atherosclerosis
- The immunologic functions of the intestine are changed by the gastric bypass surgery attenuating systemic inflammation
- The gastric bypass surgery changes cholesterol and bile acid metabolism
- The gastric bypass surgery changes the fecal microbiota
Primary end points are:
- Changes in the amounts of endocrine cells in ventricle, duodenum and jejunum
- Changes in the incretine secretion studied with liquid meal test
- Changes in the oxidation of lipoproteins
- Changes in the immunologic markers in ventricle, duodenum and jejunum
- Changes in the amounts of phytosterols, cholesterol metabolites and bile acids
- Changes in fecal microbiota
Studieoversikt
Status
Forhold
Studietype
Registrering (Faktiske)
Kontakter og plasseringer
Studiesteder
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-
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Oulu, Finland, 90220
- Oulu University Hospital
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Inclusion Criteria (patients with surgery):
- Patients having Roux-en-Y gastric bypass (according to clinical guidelines)
- Age: 18-65 years
Inclusion Criteria (control patients without surgery):
- Patients having gastroscopy (for various clinical reasons)
Exclusion Criteria:
- Diabetes (applies for control patients)
- BMI over 30 (applies for control patients)
- Insulin treatment
- Oral corticosteroid treatment
- Chronic inflammatory disease
- Coeliac disease
- Malignant disease
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
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Patients with diabetes having Roux-en-Y gastric bypass
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Patients without diabetes having Roux-en-Y gastric bypass
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Control subjects (patients having gastroscopy, no surgery)
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Changes in the amounts of endocrine cells in ventricle, duodenum and jejunum
Tidsramme: baseline to 6 months
|
Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy
|
baseline to 6 months
|
Changes in the incretine secretion studied with liquid meal test
Tidsramme: baseline to 6 months
|
Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy
|
baseline to 6 months
|
Changes in the oxidation of lipoproteins
Tidsramme: baseline to 6 months
|
Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy
|
baseline to 6 months
|
Changes in the immunologic markers in ventricle, duodenum and jejunum
Tidsramme: baseline to 6 months
|
Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy
|
baseline to 6 months
|
Changes in the amounts of phytosterols, cholesterol metabolites and bile acids
Tidsramme: baseline to 6 months
|
Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy
|
baseline to 6 months
|
Changes in fecal microbiota
Tidsramme: baseline to 6 months
|
Samples of intestine are taken prior to surgery in gastroscopy, during surgery, and 6 months after surgery during gastroscopy
|
baseline to 6 months
|
Samarbeidspartnere og etterforskere
Sponsor
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: Vesa Koivukangas, MD, PhD, Oulu University Hospital
Publikasjoner og nyttige lenker
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- Laihdutusleikkaustutkimus
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