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Fat Metabolites and Gut Hormones

24. juli 2017 oppdatert av: Christoffer Martinussen, Hvidovre University Hospital

Effects of Fat Metabolites on Gut Hormone Secretion After Gastric Bypass Surgery

To investigate the effects of different fat metabolites on gut hormone secretion in gastric bypass operated subjects and BMI-matched controls.

Studieoversikt

Status

Ukjent

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Dietary triglycerides are hydrolyzed during digestion to two fatty acids and one 2-monoacyl glycerol. The study will investigate the effects of these different fat components on gut hormone secretion in gastric bypass operated patients and non-operated BMI-matched controls.

Studietype

Intervensjonell

Registrering (Forventet)

20

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Danmark
      • Hvidovre, Danmark, 2650
        • Dept. of Endocrinology

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år til 70 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Gastric bypass operated patients:

Inclusion Criteria:

  • Uncomplicated gastric bypass surgery performed minimum 12 months prior to study

Exclusion Criteria:

  • Type 1 or 2 diabetes mellitus prior to or after gastric bypass surgery
  • Pregnancy or breastfeeding
  • Haemoglobin levels below 6,5 mM
  • Gall bladder removal

Healthy control subjects:

Exclusion Criteria:

  • Bariatric surgery or complicated upper abdominal surgery
  • Gall bladder removal
  • Pregnancy or breastfeeding
  • Haemoglobin levels below 6,5 mM
  • Co-morbidities or medicine significantly affecting glucose metabolism or appetite regulation

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Grunnvitenskap
  • Tildeling: Randomisert
  • Intervensjonsmodell: Crossover-oppdrag
  • Masking: Enkelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: 10 gastric bypass operated patients
3 different oils ingested at separate study days will be tested against each others ability to induce gut hormone secretion.
Kosttilskudd: C-8 dietary oil
Ingestion of 13.15 g C-8 dietary oil providing 0.0216 mol of triglycerides.
Kosttilskudd: Tricaprylin
Ingestion of 10.17 g tricaprylin providing 0.0216 mol of triglycerides.
Kosttilskudd: Olive oil
Ingestion of 19 g olive oil providing 0.0216 mol of triglycerides.
Eksperimentell: 10 healthy control subjects
3 different oils ingested at separate study days will be tested against each others ability to induce gut hormone secretion.
Kosttilskudd: C-8 dietary oil
Ingestion of 13.15 g C-8 dietary oil providing 0.0216 mol of triglycerides.
Kosttilskudd: Tricaprylin
Ingestion of 10.17 g tricaprylin providing 0.0216 mol of triglycerides.
Kosttilskudd: Olive oil
Ingestion of 19 g olive oil providing 0.0216 mol of triglycerides.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Within group difference in glucagon-like peptide-1 (GLP-1) secretion (evaluated by AUC above basal).
Tidsramme: 0-240 min following fat ingestion.
Comparison of the GLP-1 responses (evaluated by AUC above basal) induced by the different oils.
0-240 min following fat ingestion.
Within group difference in Gastric Inhibitory Peptide (GIP) secretion (evaluated by AUC above basal).
Tidsramme: 0-240 min following fat ingestion.
Comparison of the GIP responses (evaluated by AUC above basal) induced by the different oils.
0-240 min following fat ingestion.
Within group difference in cholecystokinin (CCK) secretion (evaluated by AUC above basal).
Tidsramme: 0-240 min following fat ingestion.
Comparison of the CCK responses (evaluated by AUC above basal) induced by the different oils.
0-240 min following fat ingestion.

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Between group comparison of GLP-1 secretion (evaluated by AUC above basal).
Tidsramme: 0-240 min following fat ingestion.
GLP-1 secretion (evaluated by AUC above basal) in gastric bypass operated patients compared to BMI-matched control subjects for each of the oils.
0-240 min following fat ingestion.
Between group comparison of GIP secretion (evaluated by AUC above basal).
Tidsramme: 0-240 min following fat ingestion.
GIP secretion (evaluated by AUC above basal) in gastric bypass operated patients compared to BMI-matched control subjects for each of the oils.
0-240 min following fat ingestion.
Between group comparison of CCK secretion (evaluated by AUC above basal).
Tidsramme: 0-240 min following fat ingestion.
GIP secretion (evaluated by AUC above basal) in gastric bypass operated patients compared to BMI-matched control subjects for each of the oils.
0-240 min following fat ingestion.
Responses (evaluated by AUC above basal) of insulin within and between groups.
Tidsramme: 0-240 min following fat ingestion.
0-240 min following fat ingestion.
Responses (evaluated by AUC above basal) of C-peptide within and between groups.
Tidsramme: 0-240 min following fat ingestion.
0-240 min following fat ingestion.
Responses (evaluated by AUC above basal) of peptide YY (PYY) within and between groups.
Tidsramme: 0-240 min following fat ingestion.
0-240 min following fat ingestion.
Responses (evaluated by AUC above basal) of oxyntomodulin within and between groups.
Tidsramme: 0-240 min following fat ingestion.
0-240 min following fat ingestion.
Responses (evaluated by AUC above basal) of glucagon within and between groups.
Tidsramme: 0-240 min following fat ingestion.
0-240 min following fat ingestion.
Responses (evaluated by AUC above basal) of bile acids within and between groups.
Tidsramme: 0-240 min following fat ingestion.
0-240 min following fat ingestion.
Responses (evaluated by AUC above basal) of fibroblast growth factor 19 (FGF-19) within and between groups.
Tidsramme: 0-240 min following fat ingestion.
0-240 min following fat ingestion.
Responses (evaluated by AUC above basal) of lipid metabolites (triglyceride, cholesterol, fatty acids) within and between groups.
Tidsramme: 0-240 min following fat ingestion.
0-240 min following fat ingestion.
Responses (evaluated by AUC above basal) of neurotensin within and between groups.
Tidsramme: 0-240 min following fat ingestion.
0-240 min following fat ingestion.
Responses (evaluated by AUC above basal) of glucose within and between groups.
Tidsramme: 0-240 min following fat ingestion.
0-240 min following fat ingestion.
Between group comparison of differences in GLP-1 secretion (evaluated by AUC above basal).
Tidsramme: 0-240 min following fat ingestion.
Differences in GLP-1 secretion (evaluated by AUC above basal) induced by the different oils in gastric bypass operated patients compared with differences in BMI-matched control subjects.
0-240 min following fat ingestion.
Between group comparison of differences in GIP secretion (evaluated by AUC above basal).
Tidsramme: 0-240 min following fat ingestion.
Differences in GIP secretion (evaluated by AUC above basal) induced by the different oils in gastric bypass operated patients compared with differences in BMI-matched control subjects.
0-240 min following fat ingestion.
Between group comparison of differences in CCK secretion (evaluated by AUC above basal).
Tidsramme: 0-240 min following fat ingestion.
Differences in CCK secretion (evaluated by AUC above basal) induced by the different oils in gastric bypass operated patients compared with differences in BMI-matched control subjects.
0-240 min following fat ingestion.

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Hvidovre University Hospital

Samarbeidspartnere

University of Copenhagen

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Generelle publikasjoner

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Forventet)

7. august 2017

Primær fullføring (Forventet)

1. desember 2018

Studiet fullført (Forventet)

1. desember 2018

Datoer for studieregistrering

Først innsendt

18. juli 2017

Først innsendt som oppfylte QC-kriteriene

18. juli 2017

Først lagt ut (Faktiske)

21. juli 2017

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

26. juli 2017

Siste oppdatering sendt inn som oppfylte QC-kriteriene

24. juli 2017

Sist bekreftet

1. juli 2017

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • CM-FAT-17

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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