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121 active trials for Weight Loss

A Novel Approach to Reducing Adiposity Among Young Men

The purpose of this research study is to find out whether a primarily self-guided program can produce changes in weight, body fat and cardiovascular risk among young men.

Start: January 2021

Self-compassion and Nutrition (SCAN) Study

The purpose of this study is to examine the feasibility of two approaches for improving long-term weight loss success among individuals with severe obesity. All participants will receive a 15-week, standard behavioral weight loss program followed by either 8 weeks of a mindfulness self-compassion intervention or 8 weeks of a nutrition and cooking education intervention (determined via randomization procedures). Assessments of weight, physical activity, and other weight-related and psychosocial factors will occur at baseline, 4 months, 6 months, and 9 months.

Start: September 2020

Lifestyle Behavior Weight Loss Intervention

This lifestyle behavior intervention aims to weight loss in low-income overweight or obese mothers of young children through promotion of stress management, healthy eating, and physical activity. All eligible women will be assigned to the intervention group. The intervention will last 3 weeks and will be delivered via weekly web and individual health coaching sessions.

Start: February 2021

Randomized Trial of a Healthy Weight Intervention for Youth With Serious Emotional Disturbance

The prevalence of overweight and obesity in youth with serious emotional disturbance (SED) exceeds the epidemic levels of overweight and obesity for children in the general population. Associated cardiovascular (CVD) risk factors such as glucose intolerance, hypertension and lipid abnormalities frequently already exist in obese children. Thus, focusing on overweight/obesity in youth with SED is critical to prevent their premature CVD. In 2015 the American Heart Association called attention to mental illnesses in youth as important risk conditions for early CVD and declared the need for transformational change in screening and management of overweight and obesity. Despite this, studies of healthy weight interventions in youth with SED are noticeably absent, and interventions will likely need to be tailored for this population who frequently have impulsivity, oppositional behavior and/or mood symptoms. In the general population, successful interventions targeting youth obesity often include active parental participation. Community mental health programs serving youth typically engage parents as part of routine treatment and therefore provide an unappreciated but potentially important opportunity to address overweight and obesity. The objective of this study is to design and rigorously test an innovative, scalable healthy weight intervention in youth with SED that incorporates parental engagement and provider support. The CHAMPION Trial is a two-arm trial partnering with community mental health organizations in Maryland. We will perform population-based screening to identify youth with overweight and obesity, and recruit and enroll 120 ages 8-18 years with SED with a BMI at or above the 85th%tile. The study will stratify by sex and site and randomly assign participants to receive a) usual care plus educational materials on healthy weight, or b) the 12-month CHAMPION intervention with a health coach who provides healthy lifestyle counseling and support for weight management, a healthy diet and increased physical activity incorporating techniques to engage both the youth and parents. The intervention's first 6 months will include frequent contacts, followed by a 6-month maintenance phase. The primary outcome will be decreased BMI z-score compared to control at 12 months; secondary outcomes include waist circumference, blood pressure, glucose, lipid levels, quality of life, and psychiatric symptoms at 6 and 12 mo. Antecedents of CVD begin early in youth, and those with SED are at particularly high risk. Breaking this cascade of risk factors leading to premature CVD will require capitalizing on the window of opportunity to intervene on overweight and obesity in youth with SED. The CHAMPION Trial will test an innovative, yet practical approach that could be readily incorporated into overall care of youth with SED.

Start: February 2018

Nutritional Stimulation of Muscle Protein Synthesis and Metabolic Rate After Bariatric Surgery

Bariatric surgery is an effective treatment for severe obesity but results in loss of muscle mass. The investigators will test the hypothesis that consumption of an Essential Amino Acid-based nutritional formulation will maintain muscle mass while stimulating fat loss after bariatric surgery.

Start: February 2021

Gastric Emptying Using Two Imaging Methods for Those Who Have Undergone POSE2 Weight Loss Procedure

The purpose of this study is to compare a less invasive breath test against the current standard for assessing gastric (stomach) emptying. The current standard of care is a procedure called Nuclear Scintigraphy of a Solid Meal (NSSM). This study will compare this method to a Gastric Emptying Breath Test (GEBT).

Start: July 2020

Understanding the Effects of Water-related Appetite Expectancies on Caloric Intake in College Students

Consuming large volumes of water has recently been identified as a common weight loss strategy among U.S. adults. It is a widespread belief that drinking water increases feelings of satiety and reduces food intake, which could contribute to long-term weight maintenance. Many studies have shown support for this, demonstrating water's ability to reduce hunger and energy intake. In some cases, increased water consumption was associated with weight loss. However, the mechanisms of how water affects food intake have been minimally explored. There is potential that the effect of water on reduced food intake and increased satiety is due to individuals' belief that water will reduce their appetite and food intake. The question remains if water expectancy has a meaningful influence on water's ability to reduce food intake. The investigators hypothesize that participants will report less hunger and consume fewer calories when given water and an expectancy that water will affect appetite, compared to a condition when given water and do not expect water to have an effect on appetite. We further hypothesize that calorie intake will not meaningfully differ when participants are given water with no expectancies compared to when given no water. During this experiment, the investigators will vary the presence of water and manipulate expectancies about water's effects on appetite across three conditions: (1) an expectancy and water condition; (2) an expectancy and no water condition; and (3) a no expectancy and water condition. In each condition, participants will engage in a bogus taste test and complete two short cognitive tasks for distraction purposes. In an effort to prevent demand characteristics, this study involves deception. Participants will be told that the research team is interested in testing the effects of three different mint herb variations on attention, coordination, and taste perceptions. After completing the cognitive tasks and taste test, participants will have a 10 minute period to eat as much of the remaining food as they'd like. Food will be weighed before and after this period (without the participant's knowledge) in order to determine caloric intake.

Start: August 2021

ObeSity and Jobs in SoCioeconomically Disadvantaged CommUnities: A Randomized CLinical Precision Public HealTh Intervention --The SCULPT-Job Study

This is an interventional research study about clinical, psychosocial, and behavioral factors that impact weight loss, weight maintenance, and cardiovascular disease in socially disadvantaged persons.

Start: February 2021

Long Term Effect of Bariatric Surgery on Pelvic Floor Disorders

Bariatric surgery is increasingly practiced, as it is the most efficient treatment for morbid obesity. More than eighty percent of the operated patients are women. Nethertheless, few is known about gynecologic long-term impact of such surgeries, especially regarding pelvic floor disorders (PFD). This work aims at studying the evolution of PFD in women following a bariatric surgery more than 18 months ago in a French university center Hospital.

Start: December 2020

The Evaluation of TCI378 and TCI507 Probiotics on Weight-lowering Efficacy in Adults

To assess the evaluation of TCI378 and TCI507 probiotics on weight-lowering efficacy in adults

Start: March 2021

Lorcaserin in Obesity: Identification of CNS Targets Using fMRI

The purpose of this protocol is to investigate, using functional magnetic resonance imaging (fMRI), the effect of treatment with lorcaserin on centers of the brain that control appetite and food intake, as well as lorcaserin's downstream metabolic effects.

Start: October 2014

Healthy Parents - Healthy Children. Weight Loss Before Fertility Treatment

The detrimental effect of overweight and obesity on fecundity has been well documented. The investigators wish to investigate the intervention program for weight loss before fertility treatment. Subsequently to gain knowledge on the effect of overweight/obesity and weight loss on the vaginal microbiome, on DNA damage on sperm cells, on the occurrence of endocrine disruptors in the endometrium, and on the gene expression in the endometrium.

Start: May 2020

Investigating the Physiological Effects of Weight Loss on Male Fertility

The purpose of this study is to determine the physiological effects of weight loss on seminal parameters in male participants with reduced reproductive capacity. Learning more about the physiological role of weight loss on reproductive function and metabolic profile of overweight and obese men may give us a better understanding of male fertility and improve the management of patients with reduced fertility. The effects of weight loss on seminal quality are not well understood.

Start: May 2018

Isolating and Exploiting the Mechanisms That Link Breakfast and Human Health - Intervention

Following the establishment of causal links between breakfast consumption, the individual components of energy balance, and health it is now important to examine and target the underlying biological mechanisms involved to maximise potential health benefits. To begin investigating the outlined mechanisms healthy, non-obese participants will be recruited to take part in phase I (acute design) of a wider project.

Start: February 2019

Utilizing Protein During Weight Loss to Impact Physical Function

This study will evaluate the effects of diet composition (i.e., amount of protein and carbohydrate) during a 6-month weight loss intervention and 12-months of follow-up on physical function, muscle mass, and weight loss maintenance in obese older adults. Participants will receive either a protein or carbohydrate supplement along with a behavioral weight loss intervention.

Start: May 2017

The Impact of Abdominal Body Contouring Surgery on Physical Function After a Massive Weight Loss (BCSP)

Obesity is a growing chronic medical condition in which as of 2015, a total of 107.7 million children and 603.7 million adults were considered obese and since 1980 the prevalence of obesity has doubled in more than 70 countries. It is estimated that 70 percent of individuals who undergo a massive weight loss would develop excess skin and based on patient reported outcome measures, it has been shown that excess skin negatively impacts patients' body image, self-esteem, physical function and body contouring surgeries have been demonstrated to improve these measures. These are surgeries that correct for excess skin and its adverse consequences. The form of the surgery is case dependent and can range from removing an apron of skin to complete contouring of the abdomen with tightening of the abdominal muscle and moving the belly button. Despite previous studies indicating mobility limitation because of excess skin and improvements after abdominal body contouring surgeries with the use of subjective measures of physical function, there are no studies that directly measures physical fitness post body contouring surgeries. Therefore, the purpose of the current study is to evaluate the impact of abdominal body contouring surgeries on direct objective measures of physical function. It is hypothesized that 1) the removal of excess skin will improve direct objective measures of physical function in post massive weight loss participants 2) the removal of excess skin will improve direct measures of gait and balance in post massive weight loss participants 3) the removal of excess skin will improve patient reported outcome measures using quality of life questionnaires in post massive weight loss participants 4) the removal of excess skin will improve aerobic capacity in post massive weight loss participants 5) the removal of excess skin does not change the body composition in post massive weight loss participants.

Start: August 2020

Health Outcomes After Participating in Exercise (HOPE)

Aging is associated with significant declines in muscle mass, strength, and physical performance, all of which lead to disability, loss of independence, and adverse clinical outcomes. Obesity exacerbates these age-related declines in function and is associated with poorer clinical outcomes and quality of life. Weight loss can also worsen age-related loss of muscle mass and decrease bone mineral density. The overall goals of this study are to determine if the short-term functional benefits of intentional weight loss are sustained long-term, and to examine the long-term benefits and risks of weight loss.

Start: February 2018

Weight Loss Before Total Joint Arthroplasty Using A Remote Dietitian and Mobile App

The purpose of this trial is to assess the impact of a 12-week remote dietitian supervised dietary and physical activity weight loss intervention and mobile app for patients with morbid obesity prior to undergoing total joint arthroplasty of the hip or knee. The hypothesis is that that the intervention will result in: 1) greater weight loss than usual care, 2) a higher percentage of patients eligible to undergo surgery by having a body mass index (BMI) below the standard cutoff of 40 kg/m2, and 3) a higher percentage of patients undergoing surgery within six months of study enrollment.

Start: July 2020

Utilizing Protein During Weight Loss to Impact Physical Function and Bone

This study is an ancillary study to the UPLIFT trial (NCT03074643) to evaluate the effects of diet composition (i.e., amount of protein and carbohydrate) during a 6-month weight loss intervention and 12-months of follow-up on bone phenotypes in obese older adults. Participants will receive either a protein or carbohydrate supplement along with a behavioral weight loss intervention.

Start: May 2017

Bariatric Embolization of Arteries for the Treatment of Nonalcoholic Steatohepatitis

Obesity is an epidemic in the US. With progression of obesity, Nonalcoholic steatohepatitis (NASH) has been a growing public health issue. Presently there is no cure for NASH.Prevention of progression of fibrosis in NASH is crucial, as they are at a high risk for cirrhosis and may need liver transplant. Recent studies have shown that blocking blood vessels to a particular portion of the stomach (bariatric or left gastric artery embolization) can temporarily decrease levels of the appetite inducing hormone ghrelin, and result in weight loss.The purpose of this study is to determine if Left gastric artery embolization (LGAE) in patients with obesity and NASH leads to clinically significant weight loss with improvement of NASH.

Start: December 2021