Clinical Trials Logo

Clinical Trial Summary

The purpose of this study is to determine whether or not the total length of small intestine effects outcomes after bariatric surgery in a cohort of patients preoperatively and up to ten years postoperatively. Roux-en-Y gastric bypass and vertical sleeve gastrectomy will be the surgical groups in this study. We aim to determine if bowel length has a significant effect on long term weight loss or other nutritional deficiencies in this bariatric cohort.


Clinical Trial Description

Bariatric surgery (also known as "weight loss surgery") is the most effective treatment for obesity as well as a number of other obesity-related conditions, including type 2 diabetes, hypertension, and hypercholesterolemia. Interestingly, not all patients respond with significant weight loss following surgery and some patients even lack much weight loss at all over the long-term. Even though variability in treatment response is observed in a variety of diseases, the biological basis for this variability in weight loss after bariatric surgery is poorly understood. Recent data from our group as well as others, however, suggest that differences in the total length of the small intestine may significantly contribute to these differences in weight loss over time. For example, Roux-en-Y gastric bypass is thought to exert its weight loss effect because of a bypass of small intestine that causes a degree of nutrient malabsorption. The bypassed small intestine (<100cm) is near the proximal end of the intestines closest to the stomach. Hypothetically, an individual with the greater total small intestine length may not benefit as much from the bypass as someone who has a much shorter length of total small intestine. Whether or not this hypothetical relationship is true remains unknown, but a recent study demonstrated that small intestine length does differ significantly between individuals with lengths ranging from 300cm to >1200cm. The total length of small intestine is not routinely measured during any bariatric procedure, as the lengths of the bypass limbs are determined from the portion of the intestines closest to the stomach. The purpose of this study is to determine whether the amount of total small intestine significantly affects weight loss in patients undergoing bariatric surgery - both the Roux-en-Y gastric bypass (RYGB) or the Vertical Sleeve Gastrectomy (VSG). If there is a significant effect of total small intestine length on long-term weight loss in bariatric patients, then it would justify the conduct of a further study to determine whether or not these operations should be performed differently in individuals to account for the differences in small intestine length. This is an observational study that will be looking at body weight (primary endpoint) and other nutritional endpoints (other pre-specified outcome measure) over time up to ten years in this patient cohort. The body weight measurements and any laboratory data will be collected that are part of the routine clinical care of these patients. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02872493
Study type Observational
Source Vanderbilt University Medical Center
Contact
Status Active, not recruiting
Phase
Start date August 2016
Completion date July 2027

See also
  Status Clinical Trial Phase
Recruiting NCT04243317 - Feasibility of a Sleep Improvement Intervention for Weight Loss and Its Maintenance in Sleep Impaired Obese Adults N/A
Recruiting NCT04101669 - EndoBarrier System Pivotal Trial(Rev E v2) N/A
Terminated NCT03772886 - Reducing Cesarean Delivery Rate in Obese Patients Using the Peanut Ball N/A
Completed NCT03640442 - Modified Ramped Position for Intubation of Obese Females. N/A
Completed NCT04506996 - Monday-Focused Tailored Rapid Interactive Mobile Messaging for Weight Management 2 N/A
Recruiting NCT06019832 - Analysis of Stem and Non-Stem Tibial Component N/A
Active, not recruiting NCT05891834 - Study of INV-202 in Patients With Obesity and Metabolic Syndrome Phase 2
Active, not recruiting NCT05275959 - Beijing (Peking)---Myopia and Obesity Comorbidity Intervention (BMOCI) N/A
Recruiting NCT04575194 - Study of the Cardiometabolic Effects of Obesity Pharmacotherapy Phase 4
Completed NCT04513769 - Nutritious Eating With Soul at Rare Variety Cafe N/A
Withdrawn NCT03042897 - Exercise and Diet Intervention in Promoting Weight Loss in Obese Patients With Stage I Endometrial Cancer N/A
Completed NCT03644524 - Heat Therapy and Cardiometabolic Health in Obese Women N/A
Recruiting NCT05917873 - Metabolic Effects of Four-week Lactate-ketone Ester Supplementation N/A
Active, not recruiting NCT04353258 - Research Intervention to Support Healthy Eating and Exercise N/A
Completed NCT04507867 - Effect of a NSS to Reduce Complications in Patients With Covid-19 and Comorbidities in Stage III N/A
Recruiting NCT03227575 - Effects of Brisk Walking and Regular Intensity Exercise Interventions on Glycemic Control N/A
Completed NCT01870947 - Assisted Exercise in Obese Endometrial Cancer Patients N/A
Recruiting NCT05972564 - The Effect of SGLT2 Inhibition on Adipose Inflammation and Endothelial Function Phase 1/Phase 2
Recruiting NCT06007404 - Understanding Metabolism and Inflammation Risks for Diabetes in Adolescents
Recruiting NCT05371496 - Cardiac and Metabolic Effects of Semaglutide in Heart Failure With Preserved Ejection Fraction Phase 2