GIP, GLP-1 and GLP-2 in Type 2 Diabetic Hyperglucagonemia
NCT ID: NCT00716170
Last Updated: 2013-11-28
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
10 participants
OBSERVATIONAL
2008-07-31
2009-07-31
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Recently we have shown that patients with T2DM exhibit a normal suppression of glucagon secretion following an adjustable intravenous (iv) glucose challenge mimicking the glucose excursion following a 50-g oral glucose tolerance test (OGTT) with the latter resulting in lack of glucagon suppression. Why this difference? A possible explanation could be that the oral administration stimulates intestinal factors resulting in a differentially glucagon response to the two similar glucose excursions. We wish to establish whether GIP, GLP-1 and/or GLP-2 are responsible for the inappropriate glucagon suppression following OGTT and meals in patients with T2DM.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Keywords
Explore important study keywords that can help with search, categorization, and topic discovery.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
CASE_ONLY
CROSS_SECTIONAL
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
A:
Patients with type 2 diabetes mellitus
Glucose-dependent insulinotropic polypeptide (GIP), glucagon-like peptide-1 (GLP-1) and glucagon-like peptide-2 (GLP-2)
Day A: Oral glucose tolerance test (50g glucose)
Day B: Isoglycemic intravenous (iv) glucose infusion
Day C: Isoglycemic iv glucose infusion + iv GIP infusion (0-20 min: 4 pmol/kg body weight/min; 20-50 min: 2 pmol/kg body weight/min)
Day D: Isoglycemic iv glucose infusion + iv GLP-1 infusion (0-20 min: 0,6 pmol/kg body weight/min; 20-50 min: 0,3 pmol/kg body weight/min)
Day E: Isoglycemic iv glucose infusion + iv GLP-2 infusion (0-20 min: 1 pmol/kg body weight/min; 20-50 min: 0,5 pmol/kg body wight/min)
Day F: Isoglycemic iv glucose infusion + iv infusion of GIP, GLP-1 and GLP-2 in doses as Day C, D and E.
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
Glucose-dependent insulinotropic polypeptide (GIP), glucagon-like peptide-1 (GLP-1) and glucagon-like peptide-2 (GLP-2)
Day A: Oral glucose tolerance test (50g glucose)
Day B: Isoglycemic intravenous (iv) glucose infusion
Day C: Isoglycemic iv glucose infusion + iv GIP infusion (0-20 min: 4 pmol/kg body weight/min; 20-50 min: 2 pmol/kg body weight/min)
Day D: Isoglycemic iv glucose infusion + iv GLP-1 infusion (0-20 min: 0,6 pmol/kg body weight/min; 20-50 min: 0,3 pmol/kg body weight/min)
Day E: Isoglycemic iv glucose infusion + iv GLP-2 infusion (0-20 min: 1 pmol/kg body weight/min; 20-50 min: 0,5 pmol/kg body wight/min)
Day F: Isoglycemic iv glucose infusion + iv infusion of GIP, GLP-1 and GLP-2 in doses as Day C, D and E.
Other Intervention Names
Discover alternative or legacy names that may be used to describe the listed interventions across different sources.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
* Normal Hemoglobin
* Prior Informed Consent
Exclusion Criteria
* Diabetic nephropathy (se-creatinin \> 130 um and/or albuminuria
* Treatment with drugs that cannot be discontinued for 12 hours
35 Years
ALL
No
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
University of Copenhagen
OTHER
The Danish Medical Research Council
OTHER
The Danish Diabetes Association
OTHER
Herlev Hospital
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Asger Lund
MD
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Tina Vilsbøll, MD DMSc
Role: STUDY_CHAIR
Herlev Hospital
Filip K Knop, MD PhD
Role: STUDY_DIRECTOR
Gentofte Hospital
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
Department of Endocrinology J, Herlev Hospital
Herlev, Herlev, Denmark
Countries
Review the countries where the study has at least one active or historical site.
References
Explore related publications, articles, or registry entries linked to this study.
Expert Committee on the Diagnosis and Classification of Diabetes Mellitus. Report of the expert committee on the diagnosis and classification of diabetes mellitus. Diabetes Care. 2003 Jan;26 Suppl 1:S5-20. doi: 10.2337/diacare.26.2007.s5. No abstract available.
Unger RH, Orci L. Glucagon and the A cell: physiology and pathophysiology (first two parts). N Engl J Med. 1981 Jun 18;304(25):1518-24. doi: 10.1056/NEJM198106183042504. No abstract available.
Unger RH, Orci L. Glucagon and the A cell: physiology and pathophysiology (second of two parts). N Engl J Med. 1981 Jun 25;304(26):1575-80. doi: 10.1056/NEJM198106253042604. No abstract available.
Shah P, Vella A, Basu A, Basu R, Schwenk WF, Rizza RA. Lack of suppression of glucagon contributes to postprandial hyperglycemia in subjects with type 2 diabetes mellitus. J Clin Endocrinol Metab. 2000 Nov;85(11):4053-9. doi: 10.1210/jcem.85.11.6993.
Knop FK, Vilsboll T, Madsbad S, Holst JJ, Krarup T. Inappropriate suppression of glucagon during OGTT but not during isoglycaemic i.v. glucose infusion contributes to the reduced incretin effect in type 2 diabetes mellitus. Diabetologia. 2007 Apr;50(4):797-805. doi: 10.1007/s00125-006-0566-z. Epub 2007 Jan 16.
Nauck MA, Homberger E, Siegel EG, Allen RC, Eaton RP, Ebert R, Creutzfeldt W. Incretin effects of increasing glucose loads in man calculated from venous insulin and C-peptide responses. J Clin Endocrinol Metab. 1986 Aug;63(2):492-8. doi: 10.1210/jcem-63-2-492.
Knop FK, Vilsboll T, Hojberg PV, Larsen S, Madsbad S, Volund A, Holst JJ, Krarup T. Reduced incretin effect in type 2 diabetes: cause or consequence of the diabetic state? Diabetes. 2007 Aug;56(8):1951-9. doi: 10.2337/db07-0100. Epub 2007 May 18.
Nauck MA, Kleine N, Orskov C, Holst JJ, Willms B, Creutzfeldt W. Normalization of fasting hyperglycaemia by exogenous glucagon-like peptide 1 (7-36 amide) in type 2 (non-insulin-dependent) diabetic patients. Diabetologia. 1993 Aug;36(8):741-4. doi: 10.1007/BF00401145.
Holst JJ. On the physiology of GIP and GLP-1. Horm Metab Res. 2004 Nov-Dec;36(11-12):747-54. doi: 10.1055/s-2004-826158.
Meier JJ, Gallwitz B, Siepmann N, Holst JJ, Deacon CF, Schmidt WE, Nauck MA. Gastric inhibitory polypeptide (GIP) dose-dependently stimulates glucagon secretion in healthy human subjects at euglycaemia. Diabetologia. 2003 Jun;46(6):798-801. doi: 10.1007/s00125-003-1103-y. Epub 2003 May 23.
Nauck MA, Heimesaat MM, Orskov C, Holst JJ, Ebert R, Creutzfeldt W. Preserved incretin activity of glucagon-like peptide 1 [7-36 amide] but not of synthetic human gastric inhibitory polypeptide in patients with type-2 diabetes mellitus. J Clin Invest. 1993 Jan;91(1):301-7. doi: 10.1172/JCI116186.
Vilsboll T, Krarup T, Madsbad S, Holst JJ. Defective amplification of the late phase insulin response to glucose by GIP in obese Type II diabetic patients. Diabetologia. 2002 Aug;45(8):1111-9. doi: 10.1007/s00125-002-0878-6. Epub 2002 Jul 4.
Meier JJ, Nauck MA, Pott A, Heinze K, Goetze O, Bulut K, Schmidt WE, Gallwitz B, Holst JJ. Glucagon-like peptide 2 stimulates glucagon secretion, enhances lipid absorption, and inhibits gastric acid secretion in humans. Gastroenterology. 2006 Jan;130(1):44-54. doi: 10.1053/j.gastro.2005.10.004.
Schmidt WE, Siegel EG, Creutzfeldt W. Glucagon-like peptide-1 but not glucagon-like peptide-2 stimulates insulin release from isolated rat pancreatic islets. Diabetologia. 1985 Sep;28(9):704-7. doi: 10.1007/BF00291980.
Sorensen LB, Flint A, Raben A, Hartmann B, Holst JJ, Astrup A. No effect of physiological concentrations of glucagon-like peptide-2 on appetite and energy intake in normal weight subjects. Int J Obes Relat Metab Disord. 2003 Apr;27(4):450-6. doi: 10.1038/sj.ijo.0802247.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
1301831410
Identifier Type: -
Identifier Source: org_study_id