Obesity Clinical Trials

The goal of this clinical trial is to test the effectiveness of an evidence-based multi-level intervention for weight loss and the feasibility, fidelity, and sustainability of implementing the intervention in low-income and underserved people living with obesity in Louisiana. The main questions it aims to answer are: * Will an evidence-based multi-level obesity intervention (called LA-CEAL CONNECT) in adults living with obesity in low-income and underserved communities achieve weight loss at 6 months compared to enhanced usual care? * Will LA-CEAL CONNECT sustain weight loss at 12 months? * Will LA-CEAL CONNECT improve waist circumference, diet quality, physical activity, quality of life, and blood pressure at 6 and 12 months? * Will LA-CEAL CONNECT be feasible to implement in adults living with obesity in low-income and underserved communities? Researchers will compare the LA-CEAL CONNECT multilevel weight loss intervention to enhanced usual care to evaluate if LA-CEAL CONNECT leads to greater weight loss and greater changes in waist circumference, diet, physical activity, quality of life, and blood pressure than enhanced usual care. Participants in both arms will: * Receive health literacy-tailored educational materials and resources for weight loss * Visit the clinic site for baseline, 6-month and 12-month study visits to collect clinical and survey measurements Participants in the CONNECT intervention arm will also: * receive health coaching * self-monitor weight and physical activity using digital technologies * attend group meetings to identify and increase utilization of community health and wellness resources Read Less

The purpose of this research study is to study the effects of endurance exercise training on adipose (fat) tissue quality and insulin sensitivity in men and women. Read Less

The goal of this clinical trial is to learn whether semaglutide, an FDA-approved treatment for diabetes and obesity, is feasible and tolerable in patients with advanced lung disease. The main question\[s\] it aims to answer are: 1. Are patients with advanced lung disease able to tolerate semaglutide therapy? 2. Are we able to titrate semaglutide therapy to a target weight? Participants will be asked to perform pulmonary function, physical function and body composition testing, as well as a blood draw before and after 12-weeks of semaglutide therapy. While on therapy, subjects will be surveyed regarding any adverse events or side effects. Read Less

The objective of the proposed double-blind, parallel-arm, randomized clinical trial is to evaluate changes in body weight and composition, assess determinants of energy balance (intake and expenditure), and measure modulators of energy balance, following 8 wk of calorie restriction (-500 kcal/d) in combination with either overnight exposure to normobaric hypoxia (8 h/night, 15% FiO2, \~2640 m) or normoxia (8 h/night, 21% FiO2), using a commercially available, in-home tent system, in adults with obesity. Read Less

Fractyl is evaluating Revita Duodenal Mucosal Resurfacing (DMR) in the REMAIN-1 pivotal study, which is designed to include two cohorts - an open label cohort referred to as REVEAL-1, and a randomized cohort, which includes both a midpoint analysis and a pivotal analysis. Patients who previously lost at least 15% of their body weight on a GLP-1 can qualify for the open label REVEAL-1 cohort. The data generated from the REVEAL-1 cohort will be used for open label reporting as the study progresses. The REMAIN-1 randomized cohort will enroll patients living with obesity and a body mass index ("BMI") between 30 and 45 kg/m2 who are not currently on a GLP-1 drug. Patients will be prescribed tirzepatide and titrated to achieve at least 15% total body weight loss, at which time tirzepatide will be discontinued and patients will be randomized to Revita versus sham at 2:1. Midpoint Analysis of Randomized Cohort: The midpoint analysis of the randomized cohort will be performed at three months of follow-up on approximately 45 patients, allowing us to assess and report on safety and efficacy signals that could be anticipated in the pivotal analysis. These patients are distinct from those included in the pivotal analysis. Pivotal Analysis of Randomized Cohort: The pivotal analysis of the randomized cohort will be performed on approximately 315 patients (distinct from those included in the midpoint analysis) and will evaluate safety and efficacy in the first co-primary endpoint, which is weight regain from the time of tirzepatide discontinuation in Revita DMR versus sham patients at six months, with a primary objective of demonstrating a benefit of Revita DMR versus sham for weight maintenance after GLP-1 discontinuation. The second co-primary endpoint evaluates a responder rate among the Revita DMR treated group at one year to demonstrate the durability of the Revita DMR procedure for weight maintenance after discontinuation of a GLP-1-based therapy. Secondary objectives will include evaluation of the effectiveness of the Revita DMR procedure on the change in blood glucose levels, cardiovascular disease ("CVD") risk factors, body composition and pre-diabetes status. All patients enrolled in the study will receive diet and lifestyle counseling. Read Less

More than 84 million - or 1 out of every 3 U.S. adults - have prediabetes, a condition that if not treated often leads to type 2 diabetes within five years. Average medical expenditures among diabetics are about 2.3 times higher than expenditures for people without diabetes. Physical inactivity and elevated body mass index (BMI) are major risk factors for the disease. Sedentary behavior is becoming increasingly prevalent with the growth of a 'work from home' culture, most recently driven by the COVID-19 pandemic. Cross-sectional epidemiologic data report significant associations between high amounts of sedentary (sitting) time and prevalent cardiovascular disease and diabetes. In our pilot study of 15 subjects with sedentary office jobs, 6 months of sit-stand desk use resulted in a 23% improvement in insulin resistance, most substantial in those who decreased daily sitting by over 90 minutes/day. Additional improvements in vascular endothelial function and triglyceride levels were seen without any change in exercise activity, step counts, or body weight. These findings not only corroborate epidemiologic findings on this topic but suggest causality and warrant a randomized control trial. The investigators hypothesize that adult subjects at-risk for diabetes will improve insulin sensitivity, metabolic and vascular (endothelial) health with a sit-stand desk intervention at work (whether in the office or at home), in the context of a randomized, controlled trial. The investigators will randomize 198 sedentary office workers with a BMI≥25 at risk for type 2 diabetes mellitus in a 1:1:1 ratio of three groups: (a) sit-stand desk intervention targeting 2 hours standing per day; (b) sit-stand desk intervention targeting 3 hours standing per day; or (c) control arm over 6 months. The block randomization design will allow for important dose-response analyses. The investigators will objectively quantify standing time, sedentary time, sedentary bouts, daily steps, and exercise activity times using a compact and re-usable accelerometer that adheres to the subject's thigh. This will provide objective assessments of activity levels and sedentary times for 7 full days each at baseline, 3 and 6 months. The device is equipped with an inclinometer to classify posture (sitting verses standing). Read Less

The purpose of this study is to compare the metabolic responses to low-carbohydrate and standard-carbohydrate meals in African Americans and non-Hispanic White adults with obesity and the effect of weight loss induced by low-calorie diet (LCD) or Roux-en-Y gastric bypass (RYGB) on the metabolic responses to low-carbohydrate and standard meals. Participants will consume: 1) a standard-carbohydrate meal (\~49 g glucose) and 2) a low-carbohydrate (\~3.4 g glucose) meal on separate study visits performed in a randomized order. We will evaluate the meals' effect before and after \~16-18% weight loss on postprandial i) insulin kinetics, ii) glucose kinetics iii) β-cell function; iv) plasma triglyceride and non-esterified fatty acid concentrations; v) plasma hormone concentrations; vi) plasma cytokine concentrations; vi) plasma metabolomics; and vii) adipose tissue transcriptomics. Read Less

Experimental data have shown that timing of sodium intake impacts diurnal patterns of sodium excretion. The purpose of this study is to test the hypothesis that the time of day for salt intake impacts (1) blood pressure rhythms and urinary sodium excretion and (2) circadian timing of factors responsible for blood pressure regulation and cardiometabolic health in obese individuals. These studies will address two aims. The first aim will test the hypothesis that limiting high salt intake prior to sleep increases day-night differences in blood pressure, improves timing of urinary sodium excretion, and improves metabolic risk factors. The second aim will test the hypothesis that limiting high salt intake prior to sleep preferentially improves rhythmicity in peripheral vs. central circadian clock factors linked to renal sodium handling. The proposed hypothesis-driven studies will determine how timing of sodium intake affects diurnal blood pressure and circadian timing of factors responsible for blood pressure control and metabolic health, with the ultimate goal of identifying novel strategies to treat nocturnal hypertension and metabolic disease in obesity. Read Less

The goal of this 12-month cluster clinical trial is to evaluate if improving child care providers' health behaviors using an online provider weight management program elicits meaningful change in dietary and physical activity behaviors in 2-5-year-old preschool children in their care and the child care environment. The study sample will include 84 child care centers. Including: 84 center directors, 168 2-5-year-old classroom teachers, 672 2-5-year old children. Some centers will do only the online Nutrition and Physical Activity Self-Assessment for Child Care (Go NAPSACC) program. This program works with child care center directors to make changes to their center around child nutrition and physical activity to foster healthier habits for the children enrolled in their care. Other centers will do Go NAPSACC Enhanced. This will include center directors doing Go NAPSACC and 2-5 year old teachers doing an online weight management program with support. Researchers will compare centers in Go NAPSACC with centers in Go NAPSACC Enhanced to see if there are greater improvements in children's diet quality and physical activity, as well as the nutrition and physical activity environment of centers in the Go NAPSACC Enhanced group. Additionally, they will see if there are greater improvements in teachers' weight, diet quality, and physical activity in centers using Go NAPSACC Enhanced. Read Less

Background: About 40 percent of adults and 20 percent of adolescents in the U.S. have a body mass index over 30 kg/m2. Being overweight may lead to a state of low-level inflammation. This may cause health problems. Researchers want to see if an anti-inflammatory medicine can help. Objective: To learn if colchicine can improve metabolism in people who have high body weight, increased inflammation, and high insulin in the blood but who have not yet developed high blood sugar. Eligibility: People aged 12 and older with high body weight who may have increased inflammation and high insulin in the blood. Healthy adult volunteers are also needed. Design: Participants will be screened with the following: Medical history Physical exam Fasting blood tests Urine tests Electrocardiogram Dual energy x-ray absorptiometry (They will lie on a table while a camera passes over their body.) Stool sample and 24-hour food diary (optional) Participants will have 3 study visits and 3 phone check-ins. At visits, they will repeat some screening tests. Healthy volunteers will have the baseline visit only. They will not get the study drug. At the baseline visit, participants will have an Oral Glucose Tolerance Test (OGTT). For this, they will drink a sweet liquid and then give blood samples. They will get a 12-week supply of the study drug or placebo to take daily by mouth. Participants will have study visits 6 weeks and 12 weeks after they started taking the study drug. At the 12-week visit, they will repeat the OGTT. Participation will last for 3 (Omega) to 4 months. ... Read Less

The goal of this clinical trial is to test a responsive parenting obesity prevention program with infants and caregivers of color (e.g., non-White; Hispanic/Latinx) and/or who are economically marginalized (i.e., publicly insured), delivered via Integrated Behavioral Health (IBH) in pediatric primary care. The main questions it aims to answer are: * 1) Is the obesity prevention intervention delivered via IBH in pediatric primary care feasible and acceptable to families of color and/or families who are economically marginalized? * 2) Will it prevent rapid weight gain during infancy? Participants will complete baseline (newborn), post-treatment (9 months), and follow-up assessments (12 months). Participants assigned to treatment will receive 4 prevention sessions as part of their typical well-child visit in pediatric primary care. Researchers hypothesize that infants in the obesity prevention intervention will have stable weight gain compared to infants in the control group (treatment as usual) will experience more rapid weight gain. Read Less

The purpose of this study is to assess the efficacy of a family-based digital (web and mobile phone-based) program known as Healthy Together ("Juntos") in preventing increases in body mass index and improving moderate-to-vigorous physical activity, diet quality, and percentage body fat among Hispanic adolescents. Read Less