- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT03475849
Effects of Gastric Bypass Surgery on Bile Acid Homeostasis
The purpose of this study is to determine whether the bile acid circulation is changed after gastric bypass surgery. Further, to account for how the changed anatomy of the gut influences how the bile acid and food is mixed in the gut and how this is associated with the changes in gut hormone release after the surgery.
Our hypothesis is that bile acid reabsorption from the gut is increased as animal models suggest so and bile acid blood concentration increases after surgery.
Studieoversigt
Status
Betingelser
Undersøgelsestype
Tilmelding (Faktiske)
Kontakter og lokationer
Studiesteder
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Copenhagen
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Hvidovre, Copenhagen, Danmark, DK-2650
- Department of Endocrinology at Hvidovre University Hospital
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Age between 25 and 65 years
- For patients: uncomplicated Roux-en-Y Gastric Bypass surgery more than 12 months before study initiation
- For controls: Age, BMI and gender matched with patient group
Exclusion Criteria:
- Previous removal of gall bladder or other abdominal surgeries except appendectomy (and gastric bypass surgery for patient group)
- Known liver disease or thyroid disease requiring antithyroid medication
- Chronic gastrointestinal symptoms
- Any chronic disease interfering with, or susceptive of interfering with appetite or gastrointestinal function
- Any medication interfering with, or susceptive of interfering with appetite or gastrointestinal function
- Smoking within the last month
- Alcohol consumption above 168 grams per week
- Currently pregnant or breast-feeding
- Anaemia with haemoglobin <6,5 mmol/L (<117 mg/dl)
- Loss or gain of more than 3 kg within the last 3 months
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: Case-Control
- Tidsperspektiver: Tværsnit
Kohorter og interventioner
Gruppe / kohorte |
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RYGB subjects
Morbidly obese patients who has undergone an uncomplicated gastric bypass surgery more than 12 months before study start.
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Control subjects
Age, sex and BMI-matched healthy controls
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SG subjects
Morbidly obese patients who has undergone an uncomplicated sleeve gastrectomy surgery more than 12 months before study start.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
---|---|
Differences in time from food intake to mix of food in the gut with bile acid between patients and controls
Tidsramme: Patients: >12 months after Gastric Bypass Surgery
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Patients: >12 months after Gastric Bypass Surgery
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Percentage of orally ingested exogenic bile acid that is retained in the body after 7 days
Tidsramme: Patients: >12 months after Gastric Bypass Surgery
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Patients: >12 months after Gastric Bypass Surgery
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Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- GAL-CAJ-16
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