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Browse 4,967 clinical trials for obesity. Find studies that match your criteria and connect with research centers.
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NCT03651284
This study is the second of three sub-studies aimed at evaluating the outcomes of the Living Green and Healthy for Teens (LiGHT) program, delivered through the Aim2Be app (v2.2). Aim2Be is an app for 10 to 17 year olds and their families that is intended to help them shift from an healthy lifestyle toward better health habits in four areas: nutrition, physical activity, recreational screen time, and sleep. This second evaluation has the following aims to: 1) describe reach; 2) assess change in knowledge of Canadian health recommendations; and 3) assess change in lifestyle behaviours and weight outcomes and whether these changes are moderated by involvement in the app. This study uses a two-group parallel/crossover randomized controlled trial design following N=200 families for six months.
NCT03445325
This study is the first of three sub-studies aimed at evaluating the outcomes of Living Green, Healthy for Teens (LiGHT v2.1), an app for 13 to 17 year -olds and their families that is intended to help them shift from an unhealthy lifestyle toward better health habits in three areas: physical activity, nutrition and sedentary behaviours. This first evaluation has the following aims to: 1) describe reach; 2) determine utilization/adherence to strategies implemented in the app and predictors of utilization/adherence; 3) assess change in knowledge and lifestyles behaviours associated with obesity as well as assess mediators of behaviour change. As this is a formative evaluation, it will prospectively follow 500 families for 4.5 months.
NCT02486380
This investigation is to evaluate the performance, comfort and ease of use of the Toffee full face and toffee nasal mask masks amongst Obesity Hypoventilation Syndrome (OHS) patients in an overnight study.
NCT03867773
The aims of this proposal are to compare the effects of 4-h versus 6-h time restricted feeding (TRF) on body weight and metabolic disease risk factors in adults with obesity. To test the study objectives, a 10-week randomized, controlled, parallel-arm trial, divided into 2 consecutive periods: (1) 2-week baseline period; and (2) 8-week TRF weight loss period, will be implemented. Obese subjects will be randomized to 1 of 3 groups: (1) 4-h TRF, (2) 6-h TRF, or a no-intervention control group. This study will be the first randomized controlled trial to compare 4-h versus 6-h TRF.
NCT03523273
This study is being done to assess the stomach emptying effect of a maximum dose of 3 mg Liraglutide compared to placebo in subjects who are overweight or obese. Liraglutide is a medication approved by the Food and Drug Administration (FDA) for routine clinical use.
NCT03624582
The overall objective of this study is to quantify the decision-making process and underlying biases around leisure activity behaviors using the Activity Preference Assessment (APA), a novel psychological task. The investigators plan to validate the APA against objectively measured sedentary and physical activity time, and examine its potential to predict health-related outcomes in children and adolescents. The Shape Up Kids Fitness Ancillary protocol will add exercise testing, cognitive and behavioral measures, accelerometry, and questionnaires to the existing Shape Up Kids primary study dataset.
NCT05424965
Aim of the study was to determine if signaling pathways in placentas of mothers affected by overweight/obesity or by gestational diabetes are altered compared to placentas of a control group (normal weight, no gestational diabetes). Moreover, maternal blood and umbilical cord blood were analysed.
NCT03077360
The rationale for the proposed research is that elucidating changes in localized diacylglycerol (DAG) and sphingolipid species that predict insulin sensitivity will reveal specific localized lipids to target in therapeutics for type 2 diabetes. To attain the overall objective, the investigators propose three specific aims: 1. Identify the influence of sarcolemmal DAG and sphingolipids on cell signaling and insulin sensitivity before and after insulin sensitizing lifestyle interventions. Strong preliminary data shape the hypothesis that sarcolemmal 1,2-disaturated DAG and C18:0 ceramide species will decrease after insulin sensitizing lifestyle interventions, leading to less Protein kinase C (PKC) and Protein phosphatase 2A (PP2A) activation, and enhanced insulin signaling. Skeletal muscle DAG and sphingolipid isomers, species, localization, and de novo synthesis will be measured before and after diet-induced weight loss or exercise training interventions in obese men and women. Insulin sensitivity will be measured using insulin clamps, and muscle lipids using Liquid Chromatography Mass Spectrometry (LC/MS). 2. Determine the impact of mitochondrial/ER (endoplasmic reticulum) DAG and sphingolipids on mitochondrial function and ER stress in vivo, before and after insulin sensitizing lifestyle interventions. The investigators hypothesize, again based on preliminary data, that mitochondrial/ER sphingolipids will decrease, yet DAG will increase after insulin sensitizing lifestyle interventions, and each will associate with increased insulin sensitivity. Changes in sphingolipids will relate to increased mitochondrial function, less ER stress, reactive oxygen species (ROS), and acyl-carnitine formation, while changes in DAG will relate to increased mitochondrial content and dynamics. 3. Identify the effect of exogenous DAG and sphingolipids on mitochondrial function in vitro, before and after insulin sensitizing lifestyle interventions. The working hypothesis is that DAG and sphingolipids will reduce mitochondrial respiration and increase ROS and acyl-carnitine content, but will be attenuated after endurance exercise training. The proposed research is innovative because it represents a substantive departure from the status quo by addressing cellular compartmentalization of bioactive lipids. The investigators contribution will be significant by identifying key species and locations of DAG and sphingolipids promoting insulin resistance, as well as mechanisms explaining accumulation that could be modified by insulin sensitizing therapeutic interventions.
NCT05423015
This study was a randomized, double-blind controlled protocol in children overweight aged 6-11 years. This study aimed to evaluate the effect of consuming fermented milk products containing Lactobacillus casei strain Shirota (LcS), as a probiotic enriched with prebiotic fructans from A. salmiana or inulin-like standard commercial prebiotic to improve the gut microbiota modulation. After providing detailed information, written informed consent was obtained from parents and written and oral assent from participants before the initial test day. Children were eligible for inclusion in the trial if they were overweight according to the World Health Organization (≥85th body mass index (BMI) percentile for overweight). The trial took place in three full-time elementary schools in San Luis Potosí, México, and the screening of the prospective participants took place up to 1 week prior to the randomization. Children were evaluated over a 6-week intervention period receiving different fermented milk products
NCT01563575
The project's background is the notion that patient centred clinical health promotion has been shown to significantly improve both outcomes and patient safety. Accordingly, the WHO describes health promotion as a key dimension of quality in hospitals, and the organization has developed standards on the topic in order to help hospital management and staff members to assess and improve the quality of health care and thereby achieve better health for patients, staff, and community. Even so, however, health promotion is still a very implicit part of nearly all quality standards on hospitals. Moreover, assessing hospitals departments' health promotion performance is still quite an unexplored area. On this basis, this project will test a new recognition process that uses the relevant WHO-HPH tools and standards to assess performance, by way of explicit documentation and evaluation of clinical health promotion activity. The project is deigned as a RCT, with a control group that undergoes the recognition process immediately and a control group that continue usual clinical routine. Then, after one year, the control group also begins the recognition process (= delayed start), while the Intervention group (=immediate-start) continues with the recognition process. Doing this allows for a great array of measurements, and hopefully the project will then show whether the recognition process really benefits implementation of health promotion in hospitals and health services, and also, if this really generates better health gains for patients and staff. The outcome measurements will be frequency of health promotion services delivered on smoking, excessive alcohol use, overweight, malnutrition, and physical activity to patients in need. Such services could for instance be motivational counselling and brief interventions, as well as intervention, rehabilitation and after treatment. Physical, mental, and social health status among patients and staff will be measured by short form (SF36).
NCT02880189
This study is designed to investigate the impact of weight loss achieved with the IGB on NASH with early fibrosis in a select cohort of patients with obesity preselected to have a high pre-test probability of having NASH with early fibrosis based on magnetic resonance elastography (MRE)-Hepatogram. In addition, this study will explore potential non-invasive imaging criteria for NASH and early fibrosis using EUS-Elastography.
NCT05420116
To evaluate the effectiveness of an intervention program called "Cerdanya on fitness" based on the prescription of physical activity, healthy nutritional habits and the promotion of positive mental health, adapted to people with obesity to improve their lifestyle and psychoemotional wellbeing
NCT05250427
ACTION APAC is a cross-sectional, observational, descriptive, and exploratory survey-based study without collection of laboratory data. The study is not related to any specific treatment options or pharmaceutical product. Collection of data will be performed via quantitative online survey by a third-party vendor through existing databases/panels in APAC region. The goal of this study is to provide insights to drive awareness around the needs of People Living with Obesity (PLwO) and Health Care Professionals (HCPs) involved in obesity treatment and management.
NCT02777177
Bariatric surgery is a powerful tool for producing significant and durable weight loss. Yet, not all patients achieve initial weight loss success and many patients have weight regain as early as 1-2 years post-surgery. Suboptimal weight loss patterns not fully explained by surgical, demographic, and medical factors has led to greater emphasis on patient behaviors evidenced by clinical guidelines that focus on appropriate eating and physical activity. However, research to inform such guidelines typically has relied on imprecise measures or not been specific to bariatric surgery. There is also little understanding of mechanisms by which psychosocial factors influence outcomes. Thus, there is a need to: (a) measure behaviors and psychosocial factors thought to be related to surgical outcomes (particularly those emphasized in guidelines) using innovative strategies to maximize data quality, (b) determine which behaviors and psychosocial factors are related to outcomes, and (c) explore how psychosocial factors influence weight both directly and via influences on behavior. Our research team was the first to employ innovative mobile health (mHealth) technology within an Ecological Momentary Assessment (EMA) framework to measure adherence to recommended behaviors at 6 months post-surgery. The investigators propose to build on this work by using EMA to measure behavioral, psychosocial, and environmental factors over a longer period to understand how they predict success and risk after surgery. An NIH-funded multi-sensor PiLR HEALTH platform will integrate objective sensor data measuring behaviors and the environments in which they are performed with self-report information collected via smartphone in real-time and in patients' natural environment. Participants (N=100) recruited from 2 ASMBS-designated centers of excellence will complete a 10-day EMA protocol pre-surgery and at 3, 6, and 12 months post-surgery to assess recommended behaviors \[e.g., meal frequency, PA\], psychosocial indicators with the most prior evidence of an association with surgical outcomes (e.g., mood/depression), and key environmental factors (e.g., type/quality of the food environment). Participants will also be weighed at the above time points. Along with describing patterns in behaviors and their relation to weight loss, the investigators will test causal models to understand how complex systems of behavioral, psychosocial, and environmental factors affect weight loss, and to identify optimal targets for intervention. This project has the potential to build a much more sophisticated and valid understanding of who is and is not successful after bariatric surgery and why. This new understanding will directly contribute to improved (i.e., specific, consistent, and validated) guidelines for recommended pre and postoperative behaviors, which could lead to improved surgical outcomes. The enhanced understanding will also inform behavioral, psychosocial, and environmental targets for intervention that are mostly likely to improve surgical outcomes.
NCT04759872
Our objective in this study is to identify the extent to which insulin drives the accumulation of lipids in skeletal muscle of humans. We will test the hypothesis that 4-hours of mild hyperinsulinemia will result in significant muscle lipid accumulation and that such effects will be similar in lean and overweight/obese humans.
NCT05273840
This study aims to improve blood glucose and weight in patients with prediabetes and obesity through health education, nutritional supplement interventions, clinical evaluation, and close clinical follow-up.100 patients with prediabetes with obesity were randomly divided into 2 groups: life intervention group, nutritional supplement intervention group. All enrolled participants were recommended for routine diabetes lifestyle education according to the "Expert Consensus on Prediabetes Intervention in Adults in China". The duration of the intervention was 3 months. The investigators aimed to compare the differences in weight, glycosylated hemoglobin, lipids and other indicators of the two groups of included populations before and after the intervention. In addition, the investigators are to explore the effects of nutritional supplement interventions on glycolipid metabolism and body weight in prediabetes with obesity.
NCT03228602
The aim of the study is to compare several parameters in three distinct groups of subjects: persons with obesity, persons with obesity and diabetes and persons with neither obesity nor diabetes: * the electrical activity in response to a sweet solution, measured before and after a standard meal, using gustatory evoked potentials (recording explained below) * blood hormone levels related to weight gain (insulin, dopamine, ghrelin, leptin: measured in blood samples) * levels of activity and quantity of an enzyme present in the saliva, amylase, which is able to break down ingested starch into several molecules of glucose. All of these parameters will be correlated to determine whether the results are different in the 3 groups of subjects in the study.
NCT02510989
Syndromic obesity are rare forms of obesity (1% of cases), involving severe obesity and early to multi organ involvement (mental retardation, dysmorphic, sensorineural damage and / or endocrine). To date, the genetic defects are identified in only 5% of cases (Prader-Willi syndrome, Bardet-Biedl syndrome, mutation of leptin or its receptor, the proconvertase-1, proopiomelanocortin or SIM-1 and TRKB genes, high resolution karyotype or abnormal DNA chips, ...). Precocity and severity of obesity are those for a little dependent genetic environment. The investigators aim is to identify new gene variants in subjects with syndromic obesity sharing common phenotypic features.
NCT05021549
The aim of this study is to compare the effect of apneic preoxygenation to conventional preoxygenation on the oxygen desaturation in morbid obese parturient performing elective caesarean section under general anesthesia.
NCT04364360
Non-alcoholic fatty liver disease (NAFLD) is increasing in the population, and is associated with heart disease and diabetes. At present there are no licensed drugs for treatment of NAFLD, therefore changes in diet and increased physical activity leading to decreased body fatness is the recommended management/treatment strategy. However, these are difficult to achieve and maintain for many individuals. A potential compound gaining interest in regards the treatment/prevention of NAFLD is sulforaphane, which is found in vegetables such as Broccoli. Animal studies suggest supplementing with sulforaphane can increase fat oxidation. This increased "fat burning" may result in lower levels of fat in the liver and overall in the body. The researchers will ask participants to undertake an intervention phase which will involve consuming two sulforaphane tablets a day for approximately 3 weeks. Participants will be asked to maintain all other aspects of their lifestyle throughout the intervention phase. The researchers will measure and compare participants whole-body and liver fat oxidation in response to a standardised test meal before and after the intervention phase by taking blood and breath samples. The researchers will also measure the amount of fat in participants liver and heart using a non-invasive technique known as magnetic resonance spectroscopy (MRS) before and after the intervention.
