Clinical trials: Insulin Secretion
Type 2 Diabetes
Short-term Effect of Intensive Insulin Therapy on Incretin Secretion
In type 2 diabetic patients, abnormality in secretion or action of incretin(GLP-1, GIP) is observed. Although controversy still exists, the secretion of GLP-1 is thought to be reduced by 20-30% while GIP secretion is normal or…
- Trial name
- NCT00776243
- Where
- 2 sites in South Korea
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- The Catholic University of Korea
Diabetes Mellitus Type 2
The Effect of Acipimox on GLP (Glucagon-like Peptide)-1 Secretion
Glucagon like peptide 1 is produced in enteroendocrine L cells in the small intestine stimulated by peroral food intake. GLP-1 induces insulin secretion, and analogues are used in the treatment of DM2 (type 2 diabetes mellitus).
- Trial name
- NCT02796950
- Testing
- Acipimox
- Where
- Denmark
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Sleep, Sleep Deprivation
Sleep Loss and Energy Metabolism in People With Family History of Type 2 Diabetes.
The use of energy from food changes when people sleep. However, it is still not known if differences in the amount of nighttime sleep have an effect on the amount of energy that people who have a relative with type 2 diabetes…
- Conditions
- Sleep, Sleep Deprivation, Insulin Resistance, Type 2 Diabetes
- Trial name
- NCT00724087
- Testing
- 5.5-hour bedtime, 8.5-hour bedtime
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Chicago
Dyslipidaemia, Insulin Resistance
Regulation of Intestinal and Hepatic Lipoprotein Secretion by Resveratrol
Resveratrol, an ingredient of red wine and available in Canada in highly purified form as an over-the-counter health supplement, has been shown to have a number of health benefits.
- Trial name
- NCT01451918
- Testing
- Resveratrol
- Where
- Canada
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University Health Network, Toronto
Does the Vagus Nerve Mediate the Effects of Xenin-25
Effects of Xenin-25 on Insulin Secretion and Gastric Emptying in Humans With and Without a Complete Truncal Vagotomy
Glucose-dependent Insulinotropic Polypeptide (GIP) and xenin-25 are peptide hormones produced/released from your intestines and help regulate blood sugar levels after you eat.
- Trial name
- NCT01951716
- Testing
- Graded Glucose Infusion with GIP Alone, Graded Glucose Infusion with xenin-25 alone, Graded Glucose Infusion with GIP plus xenin-25
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
Monogenic Diabetes
Incretin Regulation of Insulin Secretion in Monogenic Diabetes
The purpose of this study is to explore the mechanisms of metabolic control in monogenic diabetes patients treated with sulfonylurea medications.
- Trial name
- NCT01795144
- Testing
- GLP-1, Exendin 9-39
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Chicago
Prediabetes, Type 2 Diabetes
RISE Adult Medication Study
The RISE Adult Medication Study is a 4-arm, 3-center, clinical trial of adults with prediabetes and early type 2 diabetes to address the hypothesis that aggressive glucose lowering will lead to recovery of beta-cell function that…
- Trial name
- RISE Adult (NCT01779362)
- Testing
- Metformin, Liraglutide, Glargine
- Where
- 4 sites in United States
- Volunteers
- 267 people, healthy volunteers welcome
- Sponsor
- RISE Study Group
Healthy Volunteers Recruited From the General Population
Rapid Versus Slow Ingestion of Mixed Meal: Influence on Islet and Incretin Hormone Secretion in Healthy Volunteers
To test the influence of rapid versus slow ingestion of a mixed meal on insulin and incretin hormone secretion in healthy volunteers
- Trial name
- NCT01779622
- Testing
- Mixed meal
- Where
- Sweden
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Lund University
Pre-diabetes
The Role of Cholinergic Signaling for Mediating the Effects of GIP and/or Xenin-25 on Insulin Secretion
Glucose-dependent insulinotropic polypeptide (GIP) is a hormone produced in the intestine. It is released immediately after meal ingestion and increases insulin release. This, in turn, helps reduce blood glucose levels.
- Trial name
- NCT01951729
- Testing
- Control, Xenin-25 without atropine, GIP without atropine
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
Healthy Population, Glucose Tolerance
Effects of Low/No Calorie Sweeteners on Glucose Tolerance
This study aims to determine the effects of chronic exposure to some low/no calorie sweeteners (LNCS) on glucose tolerance and glucagon like peptide 1 (GLP-1) release in healthy individuals.
- Trial name
- NCT04904133
- Testing
- Low/No Calorie Sweeteners
- Where
- Turkey (Türkiye)
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Acibadem University
PreDiabetes
Insulin and Insulin Pulses During Fasting
Fasting hyperglycemia contributes disproportionately to nonenzymatic glycosylation and the microvascular complications of type 2 diabetes.
- Trial name
- NCT06424015
- Testing
- Intralipid and heparin, Saline
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Schizophrenia, Diabetes
Effect of Atypical Antipsychotic Drugs Olanzapine and Amisulpride on Glucose Metabolism
Patients suffering from schizophrenia have a high risk to become obese and develop diabetes. Risk of obesity is particularly high with some newer schizophrenia drugs, such as clozapine or olanzapine.
- Conditions
- Schizophrenia, Diabetes, Insulin Resistance
- Trial name
- NCT01160991
- Testing
- Glucose clamp technique, Amisulpride, Olanzapine
- Where
- Germany
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Central Institute of Mental Health, Mannheim
Obesity, Insulin Resistance
DIETFITS Study (Diet Intervention Examining the Factors Interacting With Treatment Success
Genomics research is advancing rapidly, and links between genes and obesity continue to be discovered and better defined. A growing number of single nucleotide polymorphisms (SNPs) in multiple genes have been shown to alter an…
- Trial name
- DIETFITS (NCT01826591)
- Testing
- Low-Carbohydrate Diet, Low-Fat Diet, Mobile App
- Where
- United States
- Volunteers
- 609 people, healthy volunteers welcome
- Sponsor
- Stanford University
Healthy
A Study to Evaluate the Use of a Graded Infusion of Intravenous Glucose in the Assessment of Insulin Secretion Rates (MK-0000-078)
A two period pilot study to determine if a graded glucose infusion using a glucose (20% dextrose [D20]) intravenous infusion can be properly implemented and will be well tolerated in healthy subjects.
- Trial name
- NCT01021462
- Testing
- Comparator: graded infusion of intravenous glucose
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Merck Sharp & Dohme LLC
Diabetes Mellitus Type 2
Near Normalisation of BG Improves the Potentiating Effect of GLP-1
The ability of glucagon-like peptide 1 to enhance beta-cell responsiveness to I.v. glucose is impaired in patients with type 2 diabetes mellitus compared with healthy individuals.
- Trial name
- NCT00612625
- Testing
- glucagon-like peptide-1, Saline
- Where
- Denmark
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Hvidovre University Hospital
Diabetes Mellitus
AchE Inhibitor and Insulin
The investigator will examine the effect of a single dose of pyridostigmine, AchE inhibitor on insulin secretion in healthy subjects.
- Trial name
- AchE (NCT03063515)
- Testing
- Pyridostigmine
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Miami
Insulin Resistance Syndrome X, Pancreatic Beta Cell Function
Mechanism of Fatty Acid-Induced Impairment of Glucose-Stimulated Insulin Secretion
A prolonged elevation of plasma free fatty acids (FFA) impairs glucose stimulated insulin secretion. The concept of fatty acid impairment of glucose stimulated insulin secretion (lipotoxicity) has now been well accepted.
- Trial name
- NCT00188773
- Testing
- N-acetylcysteine, intralipid, heparin
- Where
- Canada
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University Health Network, Toronto
Sleep, Insomnia
Treatment of Insomnia and Glucose Metabolism
Available data suggest that obtaining adequate sleep is associated with a better ability of the body to use carbohydrates as a source of energy and a lower risk of developing diabetes.
- Conditions
- Sleep, Insomnia, Insulin Resistance
- Trial name
- NCT00724282
- Testing
- Eszopiclone
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Chicago
Obesity
Acylated Ghrelin Response to Acute Exercise in Obesity
Ghrelin is a GH-secretagogue gastrointestinal hormone that regulates feeding behavior by interacting directly with hypothalamic centers in concert with other negative and permissive neuromodulators.
- Trial name
- aeroghre (NCT00486161)
- Where
- Italy
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Istituto Auxologico Italiano
Glucose Metabolism, Insulin Secretion
The Glucose-Independent Effects of Exogenous Glucagon on Insulin Secretion and Cognitive Function in Healthy Subjects
In this study the investigators will investigate the glucose-independent effects of exogenous glucagon on insulin secretion and cognitive function in healthy subjects. Subjects will participate in two study days.
- Trial name
- NCT06685146
- Testing
- Glucagon Infusion, Glucose clamp
- Where
- Denmark
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Nicolai Jacob Wewer Albrechtsen