Clinical trials: Gastric Bypass
Obesity
Endostapler Gastric Bypass Study
The goal of this prospective, post-market study is to evaluate safety and efficacy of the AEON™ Endostapler when used in laparoscopic Roux-en-Y gastric bypass surgery.
- Trial name
- NCT04712526
- Testing
- AEON Endostapler
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Lexington Medical Inc.
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
Muscle Function, Handgrip Strength Test
Muscle Assessment in Women Who Have Undergone Roux-en-Y Gastric Bypass Surgery
The purpose of this study is to assess muscle function in women at least two years after being submitted to Roux-en-Y Gastric Bypass Surgery and compare with a control group
- Trial name
- FUBA (NCT02811393)
- Testing
- Assess muscle function
- Where
- Chile
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- University of Chile
Type 2 Diabetes, Obesity
The Effect of Roux-en-Y Gastric Bypass on Insulin Sensitivity in Type 2 Diabetes
Gastric bypass surgery induces remission of diabetes within days after surgery, before significant weight loss. The aim of the study is to examine whether improved insulin sensitivity of muscle and liver contributes to the…
- Trial name
- NCT01202526
- Where
- Denmark
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Hvidovre University Hospital
Gastric Bypass
SH Dr. Chen Gastric Bypass Study
Evaluation of serum gastrin levels and their effect on marginal ulcer formation.
- Trial name
- NCT05357443
- Testing
- Gastric bypass with transection of vagal nerves, Gastric bypass without transection of vagal nerves
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Sanford Health
Healthy Volunteers, Enteric Hyperoxaluria
Safety, Tolerability, and Pharmacodynamics of NOV-001 in Adult Subjects
The first stage of this study is a prospective, adaptive, Phase 1, first-in-human, randomized, controlled study evaluating safety, tolerability, and pharmacodynamics of NOV-001 in adult healthy volunteers.
- Trial name
- NCT04909723
- Testing
- NOV-001, NB1000S, NB2000P
- Where
- 20 sites in United States, Canada
- Volunteers
- 153 people, healthy volunteers welcome
- Sponsor
- Novome Biotechnologies Inc
Laparoscopic Gastric Bypass Surgery, Ketamine
Perioperative Ketamine for Pain With Gastric Bypass
Opioid medications such as morphine, hydrocodone and oxycodone are standard for treating pain after surgery, however there are disadvantages.
- Trial name
- NCT03448068
- Testing
- Ketamine, Standard therapy
- Where
- United States
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Anastomosis, Roux-en-Y, Surgical Operation With Anastomosis, Bypass or Graft
Comparison of Laparoscopic Traditional and Knotless Sutures
Background Excess weight and obesity is the fifth leading risk factor for global death. Bariatric surgery is considered as the only effective long-term treatment for morbid obesity.
- Trial name
- NCT02720718
- Testing
- Stratafix, Vicryl
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- AZ St.-Dimpna Geel
Obesity, Gliosis, Weight-Loss
A Cohort Study of Weight Loss and Gliosis
Patients and clinicians need better options to prevent the weight regain that almost universally follows a weight loss intervention. In lay terms, a new, higher "set point" seems to occur after people gain weight.
- Trial name
- NCT03578887
- Testing
- Behavioral Weight Loss Program, Roux-en-Y Gastric Bypass or Sleeve Gastrectomy
- Where
- United States
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- University of Washington
Bariatric Surgery (Gastric Bypass), Overweight
The Effect of Different Macronutrients on Gastrointestinal Hormone Secretion After Gastric Bypass Operation
The purpose of this study is to determine the type of macronutrient (carbohydrate, lipid or protein) that most potently stimulates the endogen secretion of different gut hormones (primary outcome = Glucagon-Like peptide-1) in…
- Trial name
- NCT02372526
- Testing
- Mealtest: High protein 200 kcal 200 ml liquid meal consumed during 10 minutes, Mealtest: High fat 200 kcal 200 ml liquid meal consumed during 10 minutes, Mealtest: High carbohydrate 200 kcal 200 ml liquid meal consumed during 10 minutes
- Where
- Denmark
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Kirstine Nyvold Bojsen-Moeller
Obesity
Effect of Gastric Bypass Surgery on Pancreatic Islet and Incretin Function - Follow-up Study
To examine pancreatic islet function and incretin function during intravenous and oral stimulation >2 years after gastric bypass surgery in patients with normal glucose tolerance.
- Trial name
- NCT02161666
- Where
- Denmark
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Hvidovre University Hospital
Laparoscopic Sleeve Gastrectomy, Sleeve Gastrectomy
A Retrospective Multicenter Comparison of Laparoscopic and Robotic-Assisted Roux-en-Y Gastrectomy
The prevalence of obesity has tripled in the last 50 years with presently about 1.7 billion of the world population aged 18 years and over either overweight or obese.1 In the US alone, 35% of the population is obese.2 Although…
- Trial name
- NCT05224791
- Testing
- Roux-en-Y Gastric Bypass, Sleeve Gastrectomy
- Where
- United States
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Methodist Health System
Roux-en-Y Gastric Bypass, Obesity
Meal Glycaemic Index and Exercise After Gastric Bypass
The study will evaluate postprandial glucose excursions and gut hormone secretion after ingestion of meals with different glycaemic index (GI) values (high vs low) followed by an acute bout of exercise or rest in gastric bypass…
- Trial name
- NCT03478098
- Testing
- Low GI mealtest, Low GI mealtest and subsequent exercise, High GI mealtest
- Where
- Denmark
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Kirstine Nyvold Bojsen-Moeller
Diabetes, Surgery
Tailored Bilio-Pancreatic Limb and HbA1c 10 Years Post Mini-Gastric Bypass
Diabetes is now or soon will be a worldwide epidemic. Diabetes has impact on both healthcare costs in addition to the costs in human lives, suffering and disability. Treatment that lowers Hemoglobin A1c (HbA1c) improved outcomes.
- Trial name
- BPLLvHbA1c (NCT04442698)
- Testing
- Mini-Gastric Bypass Original Technique
- Where
- India
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- Kular Hospital
Obesity, Fatty Liver
Impact of Bariatric Surgery on the Evolution of Nonalcoholic Fatty Liver Disease: a Comparative Clinical Trial Between Sleeve Gastrectomy and Gastric Bypass
Aim: To compare prospectively two bariatric surgery techniques: sleeve gastrectomy (SG) vs gastric bypass (GB) in the evolution of nonalcoholic fatty liver disease (NAFLD) measured by the transient elastography in the first year.
- Trial name
- NCT02394353
- Testing
- Transient hepatic elastography
- Where
- Brazil
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ministry of Health, Brazil
Obesity
Effect of Acute Exercise on Food Intake and Energy Expenditure Following a Gastric Bypass
This pilot study will use a crossover design to explore the effects of acute exercise following bariatric surgery on food intake, energy expenditure, appetite, food reward, appetite hormones, and inflammatory response.
- Trial name
- ExoABari (NCT04348617)
- Testing
- Moderate exercise, Rest
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Universite du Quebec en Outaouais
Obesity
Fructose-induced Intestinal de Novo Lipogenesis
8 healthy volunteers, 8 pre-bypass obese subjects, 8 subjects between 12-18 months post-bypass, and 8 subjects matched to the post-bypass patients will be studied in two sub-studies Sub-study 1) after ingestion of two or three…
- Trial name
- FIDNL (NCT01792089)
- Testing
- fat+protein meal, Fat + protein + 13C fructose meal, Fat+protein+13C fructose+glucose meal
- Where
- Switzerland
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Lausanne
Obesity
Cerebrospinal Fluid Biomarkers in Bariatric Surgery
The goal of this project is to understand why bariatric surgery is such an effective treatment for obesity with a focus on brain mechanisms.
- Trial name
- NCT04350892
- Testing
- Roux-en-Y Gastric Bypass (RYGB), Sleeve Gastrectomy (SG), Very Low Calorie Diet (VLCD)
- Where
- United States
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Columbia University
Bariatric Surgery
Incretin Hormone Antagonism After Bariatric Surgery
Using the glucagon-like peptide-1 (GLP-1) antagonist exendin(9-39) and the glucose-dependent insulinotropic peptide (GIP) antagonist GIP(3-30), the purpose of this study is to clarify the importance of endogenous GLP-1 and GIP…
- Trial name
- INCA-BAR (NCT03950245)
- Testing
- GLP-1 antagonism, GIP antagonism, GLP-1 and GIP antagonism
- Where
- 2 sites in Denmark
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Hvidovre University Hospital
Obesity, Morbid, Metabolic Syndrome
Biometabolic Outcomes After Weight Loss Surgery: An Individualized Approach
Variable outcomes after weight loss surgery are likely attributable to complex, poorly understood mechanisms. Due to the significant impact that morbid obesity has on a patient's health, successful management of obesity and its…
- Conditions
- Obesity, Morbid, Metabolic Syndrome, NASH - Nonalcoholic Steatohepatitis
- Trial name
- NCT04841057
- Testing
- 50 cm BP limb length, 100 cm BP limb length, 150 cm BP limb length
- Where
- United States
- Volunteers
- 750 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia