Obesity Clinical Trials

The research in this VA Merit will examine the effects of obesity and Post-COVID Conditions (PCC) on physical functioning, health-related quality of life, and adipose tissue inflammatory and cellular senescence profiles in older Veterans. Further, it will evaluate whether a weight loss intervention, including dietary modification and exercise, in obese Veterans with and without PCC will reduce systemic and adipose tissue inflammation and senescence and promote PCC recovery. Read Less

The goal of this clinical trial is to evaluate the feasibility and acceptability of a 10-wk hybrid Tai Chi (TC) program with in-person classes and online TC videos among 24 physically inactive adults who are seeking metabolic and bariatric surgery (MBS) in a single-arm trial. The aims are: Aim 1: Feasibility: To evaluate whether TC is feasible, defined as a mean attendance rate of ≥70% in-person TC classes attended. Aim 2: Acceptability: To evaluate whether TC is acceptable, defined as a mean rating of ≥4 across 4 acceptability questionnaire items measured on a 5-point Likert scale (e.g., rate "Tai Chi practice is appealing to me" on a scale from 1 \[completely disagree\] to 5 \[completely agree\]). Participants will complete four individual in-person visits where they will complete study assessments and ten weekly group in-person Tai Chi classes where they will practice Tai Chi with up to 5 other study participants. Additionally, they will be asked to practice Tai Chi at home with the aid of instructional online videos and log their practice. Read Less

The overall objective of this study is to evaluate the first rigorously optimized, remotely delivered treatment for obesity against the current gold standard treatment in a head-to-head randomized controlled trial. The investigators will be comparing the previously developed and optimized behavioral weight loss intervention (APP) to the Diabetes Prevention Program (DPP), to evaluate program weight-loss success and cost-effectiveness. Read Less

This study is being done to better understand how amino acids alter the release of glucagon and insulin compared to glucose alone in health and disease. Read Less

Whether impaired postprandial glucagon suppression in prediabetes and T2DM is an attempt to overcome resistance to glucagon's actions on hepatic AA catabolism, a defect in α-cell function, or a combination of both are important, unanswered questions. NAFLD is associated with T2DM risk and impaired insulin action. Unfortunately, it is unclear if glucagon resistance is caused by obesity, hepatic steatosis or both. The experiments outlined will determine if glucagon's actions on hepatic amino acid catabolism and EGP interact with hepatic lipid metabolism in lean and obese subjects with and without T2DM (and with varying degrees of hepatic steatosis). Read Less

The purpose of this research study is to 1) understand how some, but not all people with obesity develop obesity related conditions such as type 2 diabetes and cardiovascular disease, and 2) compare the effects of 3 popular weight loss diets (Mediterranean, low-carbohydrate, or a very-low-fat plant-based diet) in people with obesity. Read Less

The purposes of this study are: 1) to determine the mechanisms responsible for the development of cardiometabolic complications in some, but not all people with obesity; 2) determine the best dietary approach for cardiometabolic health; and 3) understand why some people have a stable metabolic phenotype over time whereas cardiometabolic health improves or worsens in others. Read Less

The purpose of this study is to construct a multi-site, prospective registry to evaluate the clinical outcomes of patients who have undergone combined gastric mucosal ablation with endoscopic sleeve gastroplasty at True You Weight Loss. Read Less

Interventions that promote water consumption in place of sugar-sweetened beverages have shown promise for preventing childhood obesity in schoolchildren. Yet to date, no studies have examined whether applying this approach in childcare centers could help to prevent childhood obesity at an even earlier stage of development. This cluster-randomized controlled trial will fill gaps by examining how a multilevel childcare-based healthy beverage intervention affects young children's consumption of beverages and obesity. Read Less

High body fat at midlife, as evidenced by overweight or obese body mass index (BMI), is increasingly understood as a risk factor for Alzheimer's disease. However, the underlying processes and mechanisms that may underlie this risk remains unknown. With this project, the Investigator proposes to create a new cohort of cognitively normal 120 midlife individuals, age 40-60 years. The investigator and research staff will characterize the participant's overweight or obese status using metabolic tests including, an oral glucose tolerance test, fasting plasma insulin, fasting plasma glucose, and hemoglobin A1c measurements. This testing will generate categories of metabolically abnormal overweight and obese (MAOO), metabolically normal overweight and obese (MNOO), and metabolically normal lean participants (MNLP). Research staff will evaluate differences between these groups on neuroimaging with the newer classification framework of Alzheimer's biomarkers with amyloid (A), tau (T), and neurodegeneration (N), or ATN. Neurodegeneration will be assessed by atrophy on brain MRI as reflected by regional volumes on Freesurfer. Staff will also evaluate MR neuroimaging markers for neuroinflammation using a newer method called diffusion basis spectrum imaging (DBSI), developed at the Mallinckrodt Institute of Radiology at Washington University in St. Louis in collaboration with The Charles F. and Joanne Knight Alzheimer's Disease Research Center (Knight ADRC). Read Less

This study will look at whether accounting for the amount of pressure generated by the chest wall and abdomen in a obese patient, using a measurement called transpulmonary pressure, can help shorten the amount of time patients spend on the ventilator. By decreasing the amount of time patients spend on the ventilator, they are less likely to develop complications such as infections, weakness or more procedures. Read Less

The purpose of this study is to conduct a pilot randomized controlled trial of a food is medicine community health worker intervention called the Women's Health Delaware Food Farmacy compared to the usual standard of care among pregnant ChristianaCare patients at risk for adverse clinical outcomes. The pilot study has three specific aims: Aim 1: To assess the feasibility of the Women's Health Delaware Food Farmacy and refine the program as needed Aim 2: To determine the prevalence of and change in social needs Aim 3: To evaluate the effectiveness of the Women's Health Delaware Food Farmacy on maternal and child health, healthcare utilization, and clinical event outcomes as well as patient-reported outcomes compared to the usual standard of care Read Less