Clinical trials: Beta-cell Function
Type 1 Diabetes
Combination Therapy With Sitagliptin and Lansoprazole to Restore Pancreatic Beta Cell Function in Recent-Onset Type 1 Diabetes
Sanford Research/USD proposes to study the combination therapy of oral administration of sitagliptin and lansoprazole versus placebo for the preservation of pancreatic beta cells still present in patients with recent-onset…
- Trial name
- REPAIR-T1D (NCT01155284)
- Testing
- Sitagliptin and Lansoprazole
- Where
- 3 sites in United States
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Sanford Health
Type 2 Diabetes
Study of Vitamin D and Omega-3 Supplementation for Preventing Diabetes
The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is an ongoing randomized clinical trial in 25,875 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids…
- Trial name
- NCT01633177
- Testing
- Vitamin D3, Omega-3 fatty acid (fish oil)
- Where
- United States
- Volunteers
- 22,220 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Diabetes Mellitus
Defining the Molecular and Physiological Mechanisms of Pancreatic Islet Cell Dysfunction Which Lead to Type 2 Diabetes
Defects in insulin secretion are central to the pathogenesis of type 2 diabetes (T2D) but the molecular basis and physiological consequences of those defects are poorly understood, impeding efforts to develop novel therapeutic…
- Trial name
- DIVA-Exeter (NCT02505308)
- Testing
- Glucose-Potentiated Arginine-Induced Insulin Secretion
- Where
- 2 sites in United Kingdom
- Volunteers
- 328 people, healthy volunteers welcome
- Sponsor
- Royal Devon and Exeter NHS Foundation Trust
Gestational Diabetes
Can Resveratrol Improve Insulin Sensitivity and Preserve Beta Cell Function Following Gestational Diabetes?
The purpose of this study is to determine if resveratrol supplementation preserves beta cell function and insulin sensitivity in post-partum women following a first diagnosis of gestational diabetes.
- Trial name
- NCT01997762
- Testing
- Resveratrol
- Where
- Canada
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- University of Manitoba
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
Diabetes, Pre-diabetes
Effect of Oral L-arginine 3.32 g a Day on Oxidative Stress Influencing Beta Cell Function and Insulin Resistance.
The objective of this clinical trial is to explore whether L-arginine supplementation with 3.32g/day may enhance antioxidant defenses in overweight and obese patients with pre-diabetes and metabolic syndrome, possibly providing…
- Conditions
- Diabetes, Pre-diabetes, Metabolic Syndrome
- Trial name
- L-BIOARG (NCT06686069)
- Testing
- bioarginina zero
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Federico II University
Type 2 Diabetes Mellitus
Effects of SGLT2 Inhibitors on Islet Cell Function and Insulin Sensitivity in Patients of Type 2 Diabetes Mellitus
The main pathogenesis of type 2 diabetes mellitus is insulin resistance and insufficient secretion of insulin by pancreatic beta cells.
- Trial name
- NCT04014192
- Testing
- Dapagliflozin, Empagliflozin, Canagliflozin
- Where
- China
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Peking Union Medical College Hospital
Healthy
A Study to Evaluate the Effect of Genetic Variation on Beta-cell Function During Fasting and Hyperglycemia in Nondiabetics
The GLP-1 receptor (GLP1R) gene is found on the beta cells of the pancreas. Its role is in the control of blood sugar level by enhancing insulin secretion from the pancreas after eating a meal.
- Trial name
- NCT04466566
- Testing
- Saline, Exendin-9,39, Liraglutide
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- Adrian Vella
Diabetes Mellitus, Steroid Diabetes
Sitagliptin Prophylaxis for Glucocorticoid-Induced Impairment of Glucose Metabolism in Males With the Metabolic Syndrome
The investigators will assess whether the DPP-inhibitor sitagliptin will ameliorate glucocorticoid-induced impairment of glucose metabolism and beta-cell dysfunction and thus could be used as a prophylaxis for…
- Conditions
- Diabetes Mellitus, Steroid Diabetes, Glucocorticoid-induced Diabetes, Beta-cell Function
- Trial name
- SPHINX (NCT00721552)
- Testing
- Sitagliptin 100 mg, Prednisolone 30 mg
- Where
- Netherlands
- Volunteers
- 82 people, healthy volunteers welcome
- Sponsor
- Amsterdam UMC, location VUmc
Insulin Secretion
Effect of Taking a Single Tablet of Iron on Insulin Secretion
Oral supplementation with highly bioavailable forms of iron, such as ferrous sulphate, is the treatment of choice for iron-deficiency anemia.
- Trial name
- NCT05238987
- Testing
- Ferrous sulphate
- Where
- India
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Christian Medical College, Vellore, India
Pathophysiology, Metabolic Glucose Disorders
Metabolic Defects in Prediabetic Kuwaiti Arabs and Indians
Insulin resistance and beta cell dysfunction are the major core defects responsible for the development of type 2 diabetes (T2DM).
- Trial name
- NCT04268862
- Where
- Kuwait
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Dasman Diabetes Institute
Type 2 Diabetes Mellitus
Glucolipotoxicity and Type 2 Diabetes
Elevations of blood glucose and lipid are thought to be deleterious to the insulin secretory function of the pancreas. This is known as glucolipotoxicity. However, few studies have examined this in detail.
- Trial name
- NCT01375270
- Testing
- Glucotoxicity, Lipotoxicity
- Where
- Denmark
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Type 2 Diabetes
Beta-Cell Function After Near-Normalisation of Blood Glucose
The incretin effect is attenuated in patients with type 2 diabetes mellitus partly due to impaired potentiation of beta-cell responsiveness to glucose by glucose dependent insulinotropic polypeptide and glucagon-like peptide-1…
- Trial name
- NCT00612950
- Testing
- glucagon-like peptide-1,, glucose dependent insulinotropic polypeptide, Saline
- Where
- Denmark
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- Hvidovre University Hospital
Arteriosclerosis, Stress, Psychological
The Effect of Beta-Blockers and Aspirin on Hemostasis and Endothelial Function After Acute Mental Stress
This randomized double-blinded controlled trial uses a factorial design to investigate whether application of beta-blockers (inderal 80 mg) or aspirin (100 mg) or a combination thereof has an effect on the activation of the…
- Trial name
- NCT00174902
- Testing
- inderal (drug), acetylsalicylic acid (drug)
- Where
- Switzerland
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
Type 2 Diabetes
Exercise, Glucose Kinetics, and the Incretin Effect
Human volunteers will be stratified by oral glucose tolerance status: normal glucose tolerant, impaired glucose tolerant, and type 2 diabetic.
- Trial name
- NCT01607931
- Testing
- Exercise
- Where
- Denmark
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Obesity, Insulin Resistance
Vitamin K and Glucose Metabolism in Adults at Risk for Diabetes (Vita-K 'n' Adults Study)
Given that glutamate carboxylation or decarboxylation is key to the metabolic role of osteocalcin (at least in mouse models) and that carboxylation is vitamin K dependent, it is critical to isolate the effect of vitamin K…
- Conditions
- Obesity, Insulin Resistance, Insulin Sensitivity, Beta-Cell Dysfunction
- Trial name
- NCT02366481
- Testing
- Low-Dose Vitamin K2 Supplement (menaquinone-7; 90-mcg/d), High-Dose Vitamin K2 Supplement (menaquinone-7; 180-mcg/d)
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Augusta University
Alpha and Beta Thalassemia, Sickle Cell Disease
Collection of Human Biospecimens for Basic and Clinical Research Into Globin Variants
Background: Blood disorders like sickle cell disease and malaria affect many people around the world. Researchers want to learn more about blood disorders.
- Conditions
- Alpha and Beta Thalassemia, Sickle Cell Disease, Malaria, Human Physiology
- Trial name
- NCT03937817
- Where
- United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Leukemia, Hematopoetic Stem Cell Transplantation
Exercise as an Immune Adjuvant for Allogeneic Cell Therapies
This study aims to improve the treatment of blood cancer by using exercise to collect healthier immune cells from donors. Allogeneic adoptive cell therapy is a treatment where immune cells from a healthy donor are given to a…
- Conditions
- Leukemia, Hematopoetic Stem Cell Transplantation, Donor Lymphocyte Infusion, CAR T-Cell Therapy
- Trial name
- Allo-X (NCT06643221)
- Testing
- Exercise, Isoproterenol, Bisoprolol Fumarate Tablet 10 mg
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Arizona
Type 1 Diabetes
Beta Cell Function in (Pre)Type 1 Diabetes
Increased glycemic variability has been proposed as an independent predictor of hypoglycemia in diabetic patients. Likewise, episodes of dysglycemia have been found to be predictive of diabetes in antibodypositive nondiabetic…
- Trial name
- NCT01402037
- Testing
- Glucose, Continuous glucose monitoring
- Where
- 3 sites in Belgium
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Universitair Ziekenhuis Brussel
Type 2 Diabetes, Healthy
Effect of Pioglitazone and Exenatide on Body Weight and Beta Cell Function
Pioglitazone, a drug used in treatment of type 2 diabetes has been shown to improve insulin sensitivity in skeletal muscle, liver, and fat cells.
- Conditions
- Type 2 Diabetes, Healthy, Impaired Glucose Tolerance
- Trial name
- PIO-EX (NCT00845182)
- Testing
- Pioglitazone, Exenatide, Pioglitazone and Exenatide
- Where
- United States
- Volunteers
- 43 people, healthy volunteers welcome
- Sponsor
- The University of Texas Health Science Center at San Antonio