View clinical trials related to Weight Loss.
Filter by:This study will test the effectiveness of two distinct behavioral treatments for loss of control eating following bariatric surgery: 1. Behavioral Weight Loss Treatment 2. Cognitive Behavioral Therapy These treatments will be compared to Standard-of-Care.
The purpose of this study is to learn if a weight loss program especially designed to address food insecurity is more effective compared to a standard weight loss program.
The prevalence of overweight and obesity is getting more and more important in developed as well as in emerging countries. It can be defined according to the degree of fat storage by measurement of fat mass. No clinical studies have been conducted so far for that intended use on KiOnutrime®-Cs, a fungal chitosan from the mycelium of non-genetically modified Aspergillus niger. KiOnutrime®-Cs has been recognized as substantially equivalent to animal chitosan. The purpose of this clinical trial is to determine if KiOnutrime®-Cs-containing medical device, which is a CE-marked medical device manufactured by KitoZyme, has an effect on body weight reduction after 3 months of intake in overweight and obese men and women. Furthermore, effects on anthropometric measurements, body fat mass percentage, serum lipids and safety parameters will be investigated.
The investigators will study the influence of fat cell size/number and adipose function on weight development over very long time periods (years). By comparing fat biopsies obtained at baseline and after >7 years, the investigators will determine the association between adipose morphology/function and changes in weight or development of cardiometabolic complications (e.g. insulin resistance, type 2 diabetes, dyslipidemia and hypertension).
The sympathetic nervous (SNS) and the renin angiotensin aldosterone system (RAS) have a direct impact on renal hemodynamic, hormonal secretion and vasoactive peptide. Many mechanisms including the SNS, RAS and renal sodium handling could explain the pathogenesis of hypertension in obese patients. Lifestyle changes and bariatric surgery induce weight loss, which is associated with blood pressure lowering in obese patients. A diminution in the renal sympathetic stimulation and RAS activation could explain this effect. The AIM of this study is to show that weight loss induced by bypass surgery in obese patients affects renal salt excretion under " low body negative pressure (LBNP)" conditions . Secondary objectives are to investigate the impact of weight loss on renal hemodynamic (glomerular filtration rate (GFR), renal plasma flow) and neurohormonal responses under " low body negative pressure conditions ". We will also analyse renal blood oxygenation with Blood Oxygenation dependant IRM (BOLD-IRM) technique before and after weight loss. The population of this study will consist in two groups including 36 patients. The first one will include 24 obese patients that are going to undergo a bariatric surgery. The second one will include 12 obese patients without any weight loss associated surgery. Both group will undergo 3 investigation days. Each patient will have to undergo a screening visit that will provide dietary advice to ensure a standardized salt intake (120-180 mmol/day) for the duration of the study. The first investigation will define baseline, the second and third day of investigation will take place after 3 month and 12 month after bariatric surgery for surgical patients or after baseline for patients without surgery. One to two weeks before phase 1 and 3 patients will perform a BOLD-MRI. The surgery group will undergo bariatric surgery between the first investigation phase (baseline) and the second. An ambulatory blood pressure and 24-hour urine collection will precede each investigation day. An investigation day consists in renal hemodynamics, neurohormonal and natriuretic response measurements before, during and after 60 min of LBNP at -30mbar . The duration of the study per subject is going to take 12 months.
While eating the majority of energy earlier in the day appears to have a positive effect on weight and cardiometabolic outcomes, it is not clear how eating earlier in the day influences other behaviors that have a circadian rhythm (sleep), other energy balance behaviors important for weight loss (physical activity), and self-reported feelings of appetite control (hunger and fullness). Thus the purpose of this study is to examine the influence of timing of eating on sleep patterns, physical activity, and self-reported feelings of appetite control. It is hypothesized that those who eat the majority of their calories earlier in the day will have greater weight loss than those who eat the majority later in the day.
The purpose of this research was to develop and test the feasibility of Habit, a weight loss mobile application that was designed to coach patients through their weight loss challenges. In a pilot trial in 43 obese participants, investigators tested the feasibility of the Smart Coach mobile application when paired with a shortened online-delivered (8-week) behavioral weight loss intervention. Feasibility outcomes included frequency and duration of usage of the mobile app and each feature, recruitment, and retention. Post-intervention focus groups discussed the feasibility and acceptability of the intervention. The investigators also performed exploratory analyses comparing conditions on problem solving skills and weight loss at 8 and 16 weeks, which will inform a subsequent randomized controlled efficacy trial.
Body contouring (BC) surgery after major weight loss (MWL) requires extensive and multiple procedures. Yet, there are inconsistent data regarding the outcome after BC procedures. The aim of this study is to investigate the outcome from patients who elect to have BC procedures after MWL treated at a single metropolitan tertiary referral center.
The WORD (Wholeness, Oneness, Righteousness, Deliverance) is a faith-based weight loss study in rural, African American adults of faith. The study will see whether a weight loss + maintenance intervention will cause participants to maintain their weight better than a weight loss only intervention.
Obesity has become a global epidemic with huge public health implications. Although clinical significant weight loss can be achieved by a combination of diet and behavioral modification, strong metabolic adaptations, with increased appetite and suppressed energy expenditure, are activated, which compromise weight loss maintenance and increase the risk of relapse. The aim of this project is to compare the effects of intermittent versus continuous energy restriction on the compensatory responses previously described using two low calory diets, with a similar macronutrient distribution. More specifically, this study will analyze, in the short-term, if an intermittent energy restricted diet is associated with less appetite and low reduction in energy expenditure when compared with a continuous energy restricted diet. This project can bring large practical benefits concerning the design of weight loss programs to minimize weight relapse.