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Obesity clinical trials

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NCT ID: NCT06314191 Not yet recruiting - Obesity Clinical Trials

Adipose Tissue and Symptomatic Gonarthrosis

TAGS
Start date: March 15, 2024
Phase: N/A
Study type: Interventional

1. Prevalence of osteoarthritis in France Osteoarthritis (OA) is a very common disease, affecting almost 15% of the population. It is responsible for a significant socio-economic cost in connection with the chronic and disabling pain it causes . Gonarthrosis is the most frequently encountered arthritic localization . In a large 2010 meta-analysis, the main risk factors for developing knee OA were shown to be obesity, previous knee trauma, hand OA, female gender and advanced age. Smoking appeared to have a moderate protective effect . The risk of developing gonarthrosis in obese patients is 2.6 times higher than in the general population. Hypercholesterolemia itself is a risk factor for osteoarthritis, as are increased plasma levels of specific fatty acids and lipoproteins Inflammatory mechanism in osteoarthritis. Studies have shown that plasma levels of C-reactive protein, can be used to estimate individual susceptibility to developing osteoarthritis over a lifetime . In osteoarthritis patients, plasma concentrations of TNF-α, IL-6 and IL-1 are abnormally high, which appears to contribute to cartilage loss in these subjects . 3. Inflammatory mechanism in obesity. Obesity induces systemic and local joint mechanical stresses that increase the risk of developing gonarthrosis in obese or overweight individuals . Beyond the simple mechanical aspect, a body of evidence supports the assertion that obesity is responsible for a systemic inflammatory state, deleterious to joints. 1) Obesity is associated with radiographic and symptomatic osteoarthritis in non-weight-bearing joints, such as the hand In overweight and obese adults, plasma levels of tumor necrosis factor alpha (TNF-α) and interleukin-6 (IL-6) are significantly increased . 3)Weight loss in obese subjects with osteoarthritis alleviates joint symptoms through reduced mechanical stress but also through reduced production and response of inflammatory products . 4. Common inflammatory mechanisms between adipose tissue and obesity. The relationship between adipose tissue and inflammation is complex given the different types of adipose tissue and the action of cells derived from it. Adipose tissue is an active endocrine organ composed of mature and developing adipocytes, as well as fibroblasts, endothelial cells and a wide range of immune cells, namely adipose tissue macrophages, neutrophils, eosinophils, mast cells, T cells and B cells. Adipose tissue is recognized as an endocrine organ that secretes a large number of inflammatory mediators, including cytokines (IL-1, IL-6, IL-8, TNF-α) and adipokines (leptin, adiponectin, resistin, visfatin). Communication between adipocytes and immune cells maintains tissue homeostasis. Obesity, however, can upset this balance. Lipid metabolism and joint disorders have been shown to be linked . A high-fat diet may contribute to the development of osteoarthritis . White and brown adipose tissue appear to play a complementary role in the development of osteoarthritis. Increased white adipose tissue in obesity is thought to create a systemic environment of increased inflammation through the release of pro-inflammatory cytokines and adipokines such as leptin and visfatin, all of which have been associated with osteoarthritis . Locally, white adipocytes in infra patellar adipose tissue are architecturally different in patients without gonarthrosis compared with those with knee osteoarthritis. This difference suggests that adipocyte gene expression is directly influenced by inflammation . In obese individuals, there is elevated IL-6 production in brown adipose tissue . Furthermore, it would appear that brown adipose tissue, unlike white, down-regulates the inflammatory profile of macrophages .

NCT ID: NCT06313528 Not yet recruiting - Obesity Clinical Trials

A Study to Measure Calorie Consumption and Usage in Participants With Obesity Using LY3437943

Start date: March 18, 2024
Phase: Phase 1
Study type: Interventional

The main purpose of the study is to look at the effect of the study drug compared to placebo on calorie intake, energy metabolism, and appetite. The study will last up to 6 months and may include up to 20 visits.

NCT ID: NCT06312280 Not yet recruiting - Pediatric Obesity Clinical Trials

Evaluation of Body Composition in Pediatric Patients With Overweight or Obesity

OBIASITY
Start date: April 1, 2024
Phase:
Study type: Observational

In recent decades, the prevalence of obesity and overweight has dramatically increased globally, representing a serious problem for society and for the health system of many countries, estimating an impact of 2-8% on global health spending. Obesity and overweight represent a problem not only for adults but also for children and adolescents: the latest data from the WHO estimate that about 340 million children and adolescents between 5 and 19 years are overweight or obese, data that increase drastically since 1975 from 4% of boys to 18% in 2016. (World Health Organization (WHO). The reduction and prevention of overweight and obesity in childhood is one of the main missions of public health at the global level, both for short-term and long-term implications. Recently, the importance of bioprothesiometric analysis (BIA) in the clinical routine has been evaluated, as it allows an estimation of body composition that would not otherwise be provided by the growth curves and the calculation of the Body Mass Index (BMI). In this study the investigators want to evaluate, in addition to the classic clinical parameters, the body composition of patients evaluated by means of an impedance balance (named TANITA MC780 MA P). With this study the investigators aim to investigate possible clinical and body composition changes in children and adolescents suffering from overweight and obesity with the ultimate aim of reducing cardio-metabolic risk factors related to it. The objective of the study is the assessment of body composition, as an indicator of accuracy of lean mass, but especially of fat mass, of pediatric patients who are overweight and obesity in order to carry out a more complete evaluation of the clinical-metabolic condition for the prevention of cardiovascular risk. The secondary objective is to assess the dietary compliance of the patients being studied and the possible correlation with the body composition.

NCT ID: NCT06311487 Not yet recruiting - Healthy Clinical Trials

Time and Nutrient-Dependent Effects of Aerobic Exercise on Metabolism in Adults (TANDEM Study)

TANDEM
Start date: March 2024
Phase: N/A
Study type: Interventional

This study plans to learn more about metabolic responses to aerobic exercise at different times of the day (morning or evening) under fasting versus fed conditions.

NCT ID: NCT06311175 Not yet recruiting - Obesity Clinical Trials

Randomized Trial of Diet Tracking Prescriptions for Weight Loss

Start date: April 1, 2024
Phase: N/A
Study type: Interventional

Lifestyle interventions are effective at producing modest weight loss. One of the strongest predictors of weight loss is food tracking, which involves logging all food and beverage consumed each day in an effort to stay within a daily calorie goal. Standard lifestyle interventions prescribe daily food tracking for the length of the program which can range from 3-24 months. This can be a taxing prescription that is not feasible to do long term for many people. The purpose of this pilot feasibility randomized trial is to test the feasibility of 3 tracking prescriptions during an 8 week digital weight loss intervention: 1) tracking daily, 2) tracking two weeks on and one week off, 3) tracking every other week. Feasibility is defined as tracking prescription compliance, burden, acceptability, and perceived efficacy, and tracking self-efficacy. Diet tracking will be evaluated one month after the intervention ends so that groups can be compared on diet tracking maintenance.

NCT ID: NCT06309992 Not yet recruiting - Obesity Clinical Trials

A Study to Test Whether Survodutide Helps People Living With Obesity or Overweight and With a Confirmed or Presumed Liver Disease Called Non-alcoholic Steatohepatitis (NASH) to Reduce Liver Fat and to Lose Weight

Start date: March 20, 2024
Phase: Phase 3
Study type: Interventional

This study is open to adults who are at least 18 years old and have - presumed or confirmed NASH together with overweight or obesity and - a body mass index (BMI) of 30 kg/m² or more, or - a BMI of 27 kg/m² and at least one weight-related health problem. People with a history of other chronic liver diseases cannot take part in this study. The purpose of this study is to find out whether a medicine called survodutide helps people living with obesity or overweight and a confirmed or presumed liver disease called nonalcoholic steatohepatitis (NASH) to have less liver fat and to lose weight. Participants are put into 2 groups randomly, which means by chance. 1 group gets different doses of survodutide and 1 group gets placebo. Placebo looks like survodutide but does not contain any medicine. Every participant has a 2 in 3 chance of getting survodutide. Participants and doctors do not know who is in which group. Participants inject survodutide or placebo under their skin once a week for about 1 year. In addition to the study medicine, all participants receive counselling to make changes to their diet and to exercise regularly. Participants are in the study for about 1 year and 3 months. During this time, it is planned that participants visit the study site up to 13 times and receive 3 phone calls by the site staff. The doctors check participants' health and take note of any unwanted effects. The participants' body weight is regularly measured. At 3 of the visits, the participants' liver is measured using different imaging methods. The results are compared between the groups to see whether the treatment works.

NCT ID: NCT06309576 Not yet recruiting - Obesity Clinical Trials

Experimental Approach to Test Predictions of Body Weight Regulation Models

DIP
Start date: April 2024
Phase: N/A
Study type: Interventional

The regulation of human body weight and fatness is not fully understood. Although some models of regulation have been proposed (set point, dual-intervention point, others), no studies have been designed to test their predictions. In this pilot and feasibility study, the investigators will implement an experimental approach to test the predictions of models of body weight regulation in humans. Men and women with either underweight or obesity will be exposed to a 2-day fasting followed by a 2-day ad-libitum refeeding. During the entire fasting-refeeding period, energy intake and expenditure will be accurately measured within metabolic chambers. The investigators will therefore determine the compensatory responses to fasting elicited to prevent weight loss. The results will serve to design and power future studies to better understand body weight regulation.

NCT ID: NCT06309563 Recruiting - Weight Loss Clinical Trials

Metabolic Effects of a Diet Replaced With Essential Amino Acids

AMINOB
Start date: August 30, 2023
Phase: N/A
Study type: Interventional

The effectiveness of low-protein diets supplemented with essential aminoacid (EAA) formulas in genetic disorders of amino acid (AA) catabolism, such as maple syrup urine disease (MSUD), is widely recognized (Blackburn PR et al. 2017). The main aim of the present study is to evaluate a difference in the effectiveness of a multidisciplinary rehabilitation program in patients with high degree of obesity with and without supplementation of this new formula of amino acids (essential + tricarboxylic acids - EAA-AC). For this reason, patients of both sexes, aged between 45 and 65, suffering from high-grade obesity will be recruited in Piancavallo. The enrolled patients divided, randomly, into two groups will be given: EAA-AC group a low-calorie and low-protein diet integrated with 4 sachets of EAA-AC supplement per day; the control group will follow a low-calorie and low-protein diet only with placebo. The parameters considered, after two weeks of treatment, will be: weight loss; the maintenance/recovery of muscle mass assessed through changes in body composition and functional tests (Hand grip, 6MWT or TUG) but also through the analysis of mitochondrial function in PBMC and circulating levels of mtDNA; the improvement of the glucose picture and the lipid profile. 1 month after discharge, patients will carry out an outpatient check-up to evaluate the maintenance of muscle mass using impedance testing.

NCT ID: NCT06309238 Not yet recruiting - Obesity Clinical Trials

Intensive Weight Loss Intervention Versus Bariatric Surgery for Adults With Severe and Complex Obesity: the LightBAR Randomised Trial

LightBAR
Start date: April 2024
Phase: N/A
Study type: Interventional

With this trial, the aim is to assess the benefits and harms of a non-surgical intensive weight loss intervention that includes total dietary replacements, behavioural support and weight-loss medication compared with bariatric surgery for people with severe and complex obesity. The interpretation of the results will help inform future care pathways for people with obesity in whom bariatric surgery is currently the only available effective treatment option.

NCT ID: NCT06309121 Not yet recruiting - Obesity, Childhood Clinical Trials

Effects of the Postbiotic Blend ABB C3 on Adiposity and Glucose Metabolism in Children and Adolescents

PostOb
Start date: March 15, 2024
Phase: N/A
Study type: Interventional

This study investigates the effects of a postbiotic combination called ABB C3 on reducing body fat and improving metabolic health in children and teenagers. The study consists of a 3-month trial with half participants taking ABB C3 and the other half a placebo, monitoring body composition and blood markers. Afterward, participants can continue with ABB C3 for an additional 3 months. The goal is to determine if ABB C3 is a safe and effective way to help young people improve their health by reducing body fat.