Amylin and Glucagon-Like Peptide-1 (GLP-1): Influence on Gastric Emptying, Appetite and Food Intake in Humans
3. april 2009 opdateret af: Hvidovre University Hospital
Amylin and GLP-1: Influence on Gastric Emptying, Appetite and Food Intake in Humans.
The aim of this proposal is to dissect the mechanisms controlling gastric emptying, appetite and food intake in humans, and to obtain new knowledge to fight obesity on a pharmacological basis.
Studieoversigt
Status
Afsluttet
Betingelser
Detaljeret beskrivelse
The objective of the present study is to elucidate the mechanisms behind the effects of glucagon-like peptide-1 (GLP-1) on gastric emptying, appetite and food intake.
The first GLP-1 based anti-diabetic therapy was approved by the FDA in 2005 and is now on the market in the United States.
The strong glucose-dependent insulinotropic property of GLP-1 is a highly attractive feature in the pursue of optimal glycaemic control in type 2 diabetes.
Moreover, the potential of GLP-1 to reduce gastric emptying, appetite and food intake makes it an attractive tool in the fight against obesity, a pandemic condition that often leads to type 2 diabetes, and several companies are developing weight lowering drugs based on GLP-1.
Interestingly, another peptide, amylin, exerts very similar effects on gastric emptying, appetite and food intake in humans.
Amylin is found in insulin-rich granules in pancreatic beta-cells and is co-secreted with insulin upon insulinotropic stimuli.
Currently, it is not known whether the inhibiting effects of GLP-1 on gastric emptying, appetite and food intake are directly mediated by GLP-1, or if the effects are secondary to the robust insulin responses, and thereby amylin responses, elicited by GLP-1.
The objective of the present study is therefore to further elucidate the mechanisms of these effects in order to strengthen the development of anti-diabetic drugs with potential weight lowering capabilities.
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
23
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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Hvidovre, Danmark, 2650
- Hvidovre Hospital
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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 50 år (Voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Han
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
Patients with type 1 diabetes and matched healthy control subjects
Beskrivelse
Inclusion Criteria:
Patients with type 1 diabetes
- Informed oral and written consent
- Caucasians over the age of 18 years with type 1 diabetes (diagnosed according to the criteria of WHO) receiving long acting insulin
- C-peptide negative glucagon test
- Normal blood haemoglobin concentration
Healthy control subjects
- Informed oral and written consent
- Caucasians over the age of 18 years
- Normal 75 g- oral glucose tolerance test (OGTT) according to the criteria of WHO
- Negative islet cell autoantibodies (ICA) and GAD-65 autoantibodies
- No first-degree relatives with diabetes
- Normal blood haemoglobin concentration
Exclusion Criteria:
Patients with type 1 diabetes
- Residual beta-cell function (evaluated with glucagon test)
- Impaired hepatic function (aspartate aminotransferase (ASAT) and/or alanine aminotransferase (ALAT) > 2 times upper normal limit)
- Diabetic nephropathy (serum-creatinine > 130 µM and/or albuminuria)
- Diabetic neuropathy
- Proliferative diabetic retinopathy
- Pregnancy, breastfeeding or intention of becoming pregnant or judged to be using inadequate contraceptive measures
Healthy control subjects
- Impaired hepatic function (ASAT or ALAT > 2 times upper normal limit)
- Impaired renal function (serum-creatinine > 130 μM and/or albuminuria)
- First-degree relatives with diabetes
- Pregnancy, breastfeeding or intention of becoming pregnant or judged to be using inadequate contraceptive measures
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Meena Asmar, MD,Ph.Dstud., Panum Institut
- Studieleder: Jens Juul Holst, Professor,MD, Panum Institut
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. marts 2007
Studieafslutning (Faktiske)
1. juni 2008
Datoer for studieregistrering
Først indsendt
3. april 2009
Først indsendt, der opfyldte QC-kriterier
3. april 2009
Først opslået (Skøn)
6. april 2009
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
6. april 2009
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
3. april 2009
Sidst verificeret
1. april 2009
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
- KA-20060095
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 .