Clinical trials: Post-bariatric Hypoglycaemia
Bariatric Surgery, Hypoglycemia
Assessing Insulin Turnover Using an In-vivo Deuterated Water Experiment.
The primary objective of this study is to observe the kinetics of pre-stored and de-novo synthesized insulin that is secreted into the circulation using an in-vivo heavy water (D2O) labelling experiment in patients with…
- Conditions
- Bariatric Surgery, Hypoglycemia, Gastric Bypass
- Trial name
- DEEP1A (NCT04332289)
- Testing
- Heavy water experiment
- Where
- Switzerland
- Volunteers
- 4 people, healthy volunteers welcome
- Sponsor
- Lia Bally
Hypoglycemia, Cerebral Blood Flow
External Carotid Blood Flow in Individuals With Post-Bariatric Hypoglycemia
This is a pilot study (small-scale study) that aims to understand more about how blood flow changes in people who have low blood sugar after bariatric surgery (post-bariatric hypoglycemia) compared to those who have had surgery…
- Trial name
- NCT07082478
- Testing
- in-ear device measuring blood flow
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- Joslin Diabetes Center
Postbariatric Hypoglycemia
Cortisol and Obesity - A Vicious Cycle? Hypoglycemia After Bariatric Surgery - Association With Cortisol Metabolism?
The goal of this observational study is to learn about how bariatric surgery affects the metabolism of cortisol. The main question it aims to answer is whether changes in cortisol contribute to the development of reactive…
- Trial name
- NCT06896682
- Where
- Denmark
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Esbjerg Hospital - University Hospital of Southern Denmark
Obesity, Hypoglycemia Post Gastric Bypass Surgery
GLP1R-imaging in Post-RYGB Hypoglycemia
In order to evaluate the difference in beta cell mass in patients with and without hyperinsulinemic hypoglycemia after Roux en Y gastric bypass (RYGB) investigators aim to compare quantitative PET imaging of the pancreas between…
- Conditions
- Obesity, Hypoglycemia Post Gastric Bypass Surgery, Hyperinsulinemic Hypoglycemia
- Trial name
- NCT05597475
- Testing
- GLP-1R PET
- Where
- Netherlands
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Rijnstate Hospital
Hypoglycemia
Post Bariatric Closed Loop Glucagon Trial
This study is to test our automated hypoglycemia prevention and treatment device (glucagon-only bionic pancreas) in subjects that have undergone post-bariatric surgery that are experiencing symptoms of hypoglycemia.
- Trial name
- NCT02966275
- Testing
- Glucagon-only bionic pancreas - glucagon
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Hyperinsulinemic Hypoglycemia, Postprandial Hypoglycemia
Treatment of Post-bariatric Hypoglycaemia
This is an investigator-initiated, proof-of-concept, randomised, double-blind, placebo-controlled, single-centre phase II study aiming to evaluate the efficacy, safety and tolerability of self-administered subcutaneous 120 µg…
- Trial name
- SHERRY (NCT04836273)
- Testing
- Dasiglucagon, HyoPen
- Where
- Denmark
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Filip Krag Knop
Hypoglycemia
GLP1R-imaging in Hypoglycemia
Hyperinsulinemic hypoglycemia (HH) is a rare complication that occurs 1 to 5 years after gastric bypass surgery. The underlying mechanism of this complication is not yet completely understood.
- Trial name
- NCT03182192
- Testing
- 68Ga-NODAGA-exendin-4 PET/CT
- Where
- 2 sites in Netherlands
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Radboud University Medical Center
Hypoglycemia
Role of GLP-1 in Hyperinsulinemic Hypoglycemia Post-bariatric Surgery
The purpose of this study is to evaluate the role of GLP-1 in causing extreme postprandial glucose reductions after bariatric surgery in a subset of patients who have severe symptomatic hypoglycemia.
- Trial name
- NCT02550145
- Testing
- Exendin (9-39)
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Tracey McLaughlin
Bariatric Surgery
Glycemic Patterns After Bariatric Surgery and High Glycemic Variability and Hypoglycemia Unawareness Risk Factors
To study the glycemic patterns of patients undergoing bariatric surgery and what are the risk factors capable of predicting episodes of unnoticed hypoglycemia and high glycemic variability, evaluating patients who underwent…
- Trial name
- NCT05728320
- Testing
- Glucose monitoring with flash glucose monitor
- Where
- Brazil
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Rio de Janeiro State University
Hypoglycemia
Mechanisms of Post-Bariatric Hypoglycemia
Post-bariatric hypoglycemia (PBH) is an increasingly recognized syndrome that is incompletely understood. The purpose of this study is to increase our level of understanding by investigating mechanisms contributing to this…
- Trial name
- NCT04428866
- Testing
- Continuous Glucose Monitoring, activity monitor, Mixed meal tolerance test
- Where
- United States
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- Joslin Diabetes Center
Post-bariatric Surgery
Glucagon-like Peptide 1, Glucose Metabolism and Gastric Bypass
The overall goal of this project is to understand the mechanisms by which gastric bypass surgery improves glucose metabolism. The central hypothesis guiding this project is that the reconfiguration of intestinal transit with the…
- Trial name
- GLP-1 (NCT01803451)
- Testing
- exendin-(9-39), exendin -(9-39)
- Where
- 2 sites in United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- The University of Texas Health Science Center at San Antonio
Hypoglycemia, Hypoglycemia, Reactive
Post-Prandial Carbohydrate Metabolism in Individuals With and Without Post-Bariatric Surgery Hypoglycemia (PBH)
In this study, the investigators will determine (a) whether metabolism (secretion and turnover) of glucagon is altered in patients with PBH, (b) whether this is affected by a meal, (c) whether PBH affects the ability of the body…
- Conditions
- Hypoglycemia, Hypoglycemia, Reactive, Bariatric Surgery
- Trial name
- NCT07818707
- Testing
- Glucagon for Injection (Fresenius Kabi USA), [6,6-2H2] glucose, [13C9, 15N1]-glucagon
- Where
- 2 sites in United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Joslin Diabetes Center
Roux-en-y Gastric Bypass, Post Prandial Hypoglycemia
Evaluation of the Neuro-endocrine Response to Post-prandial Hyperinsulinaemic Hypoglycaemia.
The primary objective of this study is to assess the neuro-endocrine response to hypoglycaemia in PHH vs. non-PHH post-gastric bypass individuals.
- Trial name
- DEEP1B (NCT04334161)
- Testing
- Administration of glucose and controlled induction of hypoglycaemia.
- Where
- Switzerland
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Lia Bally
Bariatric Surgery (Gastric Bypass)
Can Postprandial Reactive Hypoglycaemia be Reduced in Patients After Roux-en-Y Gastric Bypass With a Low Carbohydrate Diet?
Roux-en-Y gastric bypass (RYGB) accelerates nutrient delivery to the small intestine causing higher peak blood glucose concentration early after meal intake.
- Trial name
- NCT02665715
- Testing
- Low carbohydrate meals, Standard carbohydrate meals
- Where
- Denmark
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Amirsalar Samkani
Obesity, Hypoglycemia
Etiology, Assessment and Treatment of Post-gastric Bypass Severe Hypoglycemia
With increasing rates of obesity the number of anti-obesity operations performed is increasing; one of the most common is gastric bypass.
- Conditions
- Obesity, Hypoglycemia, Surgery
- Trial name
- NCT01865760
- Testing
- Oral Glucose tolerance test (OGGT), Liquid mixed meal, Octreotide
- Where
- Denmark
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Post Bariatric Surgery, Gastric Bypass
The Effects of Bariatric Surgeries on Glucose Metabolism
The purpose of this study is learn the effect of gastric bypass surgery and sleeve gastrectomy on glucose metabolism mediated by neural and hormonal factors initiated after eating.
- Conditions
- Post Bariatric Surgery, Gastric Bypass, Sleeve Gastrectomy, Hypoglycemia After Gastric Bypass
- Trial name
- NCT02823665
- Testing
- Exendin-(9-39), Atropine
- Where
- 2 sites in United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- The University of Texas Health Science Center at San Antonio
Post-Bariatric Hypoglycemia
Role of Nutrient Transit in Hyperinsulinemic Hypoglycemia
Severe hypoglycemia (low blood sugar)after gastric bypass surgery is an increasingly recognized condition, characterized by symptoms of hypoglycemia after eating and inappropriately elevated insulin concentrations that occur at…
- Trial name
- NCT04615546
- Testing
- Use of Continuous Glucose Monitor (CGM), Use of "Cardea Solo" monitoring
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Stanford University