- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT02061124
Effect of Bile Acid Sequestration on Postprandial GLP-1 Secretion, Glucose Homeostasis and Gut Microbiota
Accumulating evidence suggests that bile acids and bacteria in our intestines may constitute essential components in the complex mechanisms regulating gut hormone secretion and glucose homeostasis. At the same time, bile acids and gut bacteria are interdependent. Thus, it is likely that modification of the enterohepatic circulation of bile acids can lead to changes in gut hormone secretion or gut bacteria composition and consequently affect glucose homeostasis.
The current study is a human interventional study with 7-day ingestion of a bile acid sequestrant or placebo, preceded and followed by meal tests and faecal sampling. The aim is to examine how (and if) bile acid sequestration can influence postprandial glucagon-like peptide-1 (GLP-1) secretion, gut microbiota and glucose homeostasis in patients with type 2 diabetes and healthy individuals. As a tool to sequester bile acids we will use sevelamer, a phosphate binding resin used in the treatment of hyperphosphataemia in adult patients with chronic kidney disease. Surprisingly, sevelamer was recently shown to improve glycaemic control in patients with chronic kidney disease and type 2 diabetes.
The investigators hypothesize that higher luminal concentrations of bile acids in the distal gut will elicit changes in the postprandial gut hormone secretion and gut bacteria composition. The current study will help to clarify this hypothesis and improve our general understanding of the association between bile acid circulation and signalling, gut hormone secretion, gut bacteria and glucose metabolism.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Tipo di studio
Iscrizione (Effettivo)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
-
-
-
Hellerup, Danimarca, 2900
- Diabetes Research Division, Gentofte Hospital, Copenhagen
-
-
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
Both groups
- Caucasian ethnicity
- Normal haemoglobin
- Age above 35 years and below 80 years
- Informed and written consent
- BMI > 23 kg/m2 and <35 kg/m2
Patients with type 2 diabetes
- Type 2 diabetes for at least 3 months
- Diagnosed according to the criteria of the World Health Organization (WHO)
Healthy Subjects
- Normal fasting plasma glucose (FPG) <6.5 mM and
- Normal glycated haemoglobin (HbA1c) <6.0 %
Exclusion Criteria:
Both groups
- Liver disease (alanine aminotransferase (ALAT) and/or serum aspartate aminotransferase (ASAT) >2 times normal values) or history of hepatobiliary disorder
- Gastrointestinal disease, previous intestinal resection, cholecystectomy or any major intra-abdominal surgery
- Hypo- or hyperphosphataemia
- Nephropathy (serum creatinine >150 µM and/or albuminuria
- Treatment with medicine that cannot be paused for 12 hours
- Intake of antibiotics six months prior to study
- Hypo- or hypercalcaemia
- Hypo- and hyperthyroidism
- Treatment with oral anticoagulants
- Active or recent malignant disease
- Any treatment or condition requiring acute or sub-acute medical or surgical intervention
- Lack of effective birth control in premenopausal women
- Positive pregnancy test on study days in premenopausal women
- Tobacco smoking
- Any condition considered incompatible with participation by the investigators
Patients with type 2 diabetes
- Treatment with insulin
- Treatment with incretin-based therapy
Healthy Subjects
- Diabetes or
- prediabetes (fasting plasma glucose levels >6.5 mM or HbA1c >6.0%)
- First-degree relatives with diabetes
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Scienza basilare
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Doppio
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Comparatore attivo: T2DM, sevelamer
Patients with type 2 diabetes treated with sevelamer
|
|
|
Comparatore placebo: T2DM, placebo
Patients with type 2 diabetes treated with placebo
|
|
|
Comparatore attivo: Healthy subjects, sevelamer
Healthy subjects treated with sevelamer
|
|
|
Comparatore placebo: Healthy subjects, placebo
Healthy subjects treated with placebo
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Incremental and total area under the Concentration-Time Curve (AUC 0-240 min)
Lasso di tempo: -30, -15, 0, 10, 20, 30, 45, 60, 90, 120, 180, 240 min on study days 1 and 7 (meal tests start at 0 min)
|
Postprandial responses of glucagon-like peptide-1 (GLP-1)
|
-30, -15, 0, 10, 20, 30, 45, 60, 90, 120, 180, 240 min on study days 1 and 7 (meal tests start at 0 min)
|
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Incremental and total area under the Concentration-Time Curve (AUC 0-240 min)
Lasso di tempo: -30, -15, 0, 10, 20, 30, 45, 60, 90, 120, 180, 240 min on study days 1 and 7 (meal tests start at 0 min)
|
Postprandial responses of various other gut hormones
|
-30, -15, 0, 10, 20, 30, 45, 60, 90, 120, 180, 240 min on study days 1 and 7 (meal tests start at 0 min)
|
Altre misure di risultato
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Blood analysis
Lasso di tempo: Fasting status on study days 1 and 7
|
Lipids
|
Fasting status on study days 1 and 7
|
|
Blood analysis
Lasso di tempo: Fasting status on study days 1 and 7
|
Inflammatory and metabolic markers
|
Fasting status on study days 1 and 7
|
|
Faecal samples
Lasso di tempo: Prior to study days 1 and 7
|
Gut microbiota composition
|
Prior to study days 1 and 7
|
|
Blood analysis of paracetamol
Lasso di tempo: -30 min to 240 min (ingestion of meal at 0 min) on study days 1 and 7
|
Assessment of gastric emptying
|
-30 min to 240 min (ingestion of meal at 0 min) on study days 1 and 7
|
|
Bodyweight
Lasso di tempo: Fasting state on study days 1 and 7
|
Fasting state on study days 1 and 7
|
|
|
Indirect calorimetry
Lasso di tempo: -30 min to 240 min (ingestion of meal at 0 min) on study days 1 and 7
|
Basal metabolic rate
|
-30 min to 240 min (ingestion of meal at 0 min) on study days 1 and 7
|
|
Ultrasound measurements
Lasso di tempo: -30 min to 240 min (ingestion of meal at 0 min) on study days 1 and 7
|
Gall bladder volume
|
-30 min to 240 min (ingestion of meal at 0 min) on study days 1 and 7
|
|
Visual analog scale score
Lasso di tempo: -30 min to 240 min (ingestion of meal at 0 min) on study days 1 and 7
|
Appetite
|
-30 min to 240 min (ingestion of meal at 0 min) on study days 1 and 7
|
Collaboratori e investigatori
Collaboratori
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- H-2-2013-148
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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