Obesity Clinical Trials

Nonalcoholic fatty liver disease (NAFLD) is a common complication of obesity and is associated with an increased risk of developing type 2 diabetes. The hallmark feature of NAFLD is an increase in intrahepatic triglyceride (IHTG) content. Data from studies conducted in rodent models suggest increased IHTG content can alter hepatic vagal afferent nerve (HVAN) activity. In rodent models of obesity and NAFLD, HVAN activity is reduced leading to impaired insulin sensitivity and glucose control. The reduction in HVAN activity is likely due to increased hepatic release of GABA, an inhibitory neurotransmitter, attributable to increased expression of GABA-Transaminase (GABA-T). Pharmacological inhibition of GABA-T in obese mice by treatment with vigabatrin, an irreversible inhibitor of GABA-T improves glucose tolerance and reduces hyperinsulinemia, hyperglycemia, and insulin resistance. It is not known if vigabatrin can also improve metabolic function in people. We propose to conduct a 3-week, single-arm trial to assess the effect size of treatment with vigabatrin on the following specific aims with the larger goal of determining whether a large, randomized controlled trial investigating the effect of vigabatrin is warranted. Read Less

A retrospective review of body composition changes in patients who participate in a 9-week non-invasive intensive health care provider supervised weight loss program as an overall cohort and in sub-cohorts of interest. Read Less

The IWCR is a global scientific study aimed at better understanding the opportunities and barriers for reducing the prevalence of obesity by collecting information from people who have experience with weight management in their everyday lives. The investigators seek to gather information on a wide range of weight management experiences, ranging from weight loss and weight loss maintenance to weight gain and inability to lose weight. Read Less

The purpose of this study is to determine the effectiveness of mobile health applications in improving health outcomes and type II diabetes outcomes in type 2 diabetics. This study will involve a 6-month long commitment where participants will be expected to weigh themselves every morning, at the same time, and check their blood glucose readings daily before and after meals for at least three meals in the day. Read Less

The purpose of this study is to determine the effectiveness of mobile health applications in improving health outcomes and the subsequent benefit of improving type II diabetes outcomes in a low socioeconomic Hispanic population. This study will involve a 6-month long commitment where participants will be expected to weigh themselves every morning, at the same time, and check their blood glucose readings daily before and after meals for at least three meals in the day. Read Less

The overall objective of this study is to evaluate the efficacy of a mindfulness-based intervention to prevent weight regain in weight-reduced adults. Read Less

The goal of the trial is to determine the feasibility of implementing a specific nutrition regimen used alone or in combination with a behavioral weight loss (WL) intervention on cognition and cerebral blood flow in older adults at risk of cognitive decline. Read Less

The purpose of the study is to determine if body composition differs between early time restricted eating (8-hour feeding period from 7 am to 3 pm) with exercise and late time restricted eating (8-hour feeding period from 3 pm to 11 pm) with exercise in overweight adults. Read Less

The purpose of the study is to evaluate how dietary habits in the post-surgical year impact outcomes of bariatric surgery. Read Less

The purpose of the study is to test how dietary habit interventions affect patients weight loss outcomes after bariatric surgery. Read Less

The purpose of this study is to examine the hypothesize that 4 weeks of sympathetic nerve activity (SNA) inhibition (oral clonidine) will cause a significant reduction in circulating blood concentrations and endothelial cell expression of inflammatory markers (e.g., TNF-α, IL-6). Our study is a prospective study using a randomized, double-blinded design to test 4 weeks of SNA blockade (oral clonidine) compared with a BP-lowering control condition (diuretic, hydrochlorothiazide) or a placebo. Read Less

The purpose of this study is to learn if obese pre- and early pubertal girls with hyperandrogenemia (HA) are more insulin resistant (i.e., have lower insulin-stimulated glucose disposal) compared to obese peripubertal girls without HA; and that overnight mean luteinizing hormone (LH) concentration is also an independent predictor of free testosterone concentrations, especially in mid- to late pubertal girls. Read Less