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Browse 2,358 clinical trials for obesity. Find studies that match your criteria and connect with research centers.
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NCT03490513
The investigators have preliminary data suggesting that obese patients with hypogonadotropic hypogonadism (HHG) have minimal benefit from testosterone therapy likely because of its conversion to estradiol by the abundant aromatase enzyme in the adipocytes. The increased conversion of androgens into estrogens in obese men results in a negative feedback of high estradiol levels on hypothalamus and pituitary, inhibiting the production of gonadotropin-releasing hormone (GnRH), luteinizing hormone (LH) and follicle stimulating hormone (FSH) and, as a consequence, of testosterone by the testis. Testosterone administration could increase estradiol production, further promoting the inhibitory feedback to the hypothalamic-pituitary-gonadal axis. Although weight loss from lifestyle modification has been shown to reduce estradiol and increase testosterone levels, the effect is at best modest and weight regain results in recurrence of hypogonadism. The use of aromatase inhibitors, in combination with weight loss, could be an effective alternative strategy due to its action at the pathophysiology of the disease. Intervention Subjects (body mass index of ≥35, testosterone \<300 ng/dl) will be randomized to the active (anastrozole) or control (placebo) group. Anastrozole 1 mg tablet / day will be self-administered with or without food, at around the same time every day (active group); placebo 1 tablet/day with or without food to take at around the same time every day (control group). The study duration will be 12 months. Both groups will undergo lifestyle intervention consisting of diet and supervised exercise program. Target weight loss will be at least 10% of baseline body weight during the intervention. Subjects will attend weekly group behavior modification sessions which will last \~75-90 min for the first 3 months and decreased to every two weeks from 3 to 12 months. Subjects will attend supervised research center-based exercise sessions during the first 6 months followed by community fitness center-based sessions during the next 6 months for at least 2 d/wk, with recording of home-based exercises for the other 2-4 days/week. Although the above original protocol requires the participants to come to our center for dietary and exercise training, since the Covid19 pandemic, study participants were given the following options for lifestyle intervention: 1) in-person visits at our facility for dietary classes and exercise training, 2) to enlist in the gym of their choice with membership paid for by the study, or 3) virtual method of lifestyle intervention. These amendments were put in place due to Covid 19 restrictions; however, we decided to keep these methods because most of our subjects prefer them over coming for in-person visits at our lab even after COVID restrictions were lifted. Since the study had just the first 25 subjects enrolled prior to COVID outbreak, majority of the subject's lifestyle interventions were done by virtual dietary classes every week for the first 3 months and then every 2 weeks thereafter either as a group or by one-on-one sessions. Exercise program was also supervised by exercise physiologist virtually or by phone for subjects who want to exercise at a community gym
NCT07100691
This is a multicentre, investigator-blinded, randomised controlled trial evaluating whether the use of oral metoclopramide before surgery can reduce the amount of residual gastric content in patients who are taking glucagon-like peptide-1 receptor agonists (GLP-1 RAs) for weight loss. These medications are known to slow down gastric emptying, which may increase the risk of pulmonary aspiration during anaesthesia. Patients will be randomly assigned to either receive metoclopramide 24 hours before surgery or continue with standard care. The primary outcome will be the presence or absence of residual gastric content on ultrasound before surgery. Secondary outcomes include nausea, vomiting, constipation, and any adverse effects of the medication.
NCT06567327
The purpose of this study is to learn the following about the study medicine, danuglipron, after multiple days of dosing in healthy adults who are overweight or obese: * how the study medicine, danuglipron, is taken up into the blood * if the study medicine, danuglipron, changes how the body processes other study medicines (Atorvastatin and Rosuvastatin) * about the safety and tolerability of danuglipron The study will take place in 4 Cohorts (groups). The total number of weeks of the study is about 23 (about 6 months) for Cohort 1 and 22 weeks (about 5.5 months) for Cohort 2, 21 weeks (about 5 months) for Cohort 3 and 20 weeks (about 5 months) for Cohort 4.
NCT06169033
Using radiomics of intra-abdominal and subcutaneous adipose tissue and clinical features to predict the weight loss efficacy and remission of type 2 diabetes mellitus after bariatric surgery.
NCT07095010
Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) is the most common cause of chronic liver disease in children and adolescents. Lifestyle factors are modifiable risk factors that may play a key role in both the prevention and management of the disease. However, existing data on the association between lifestyle and MASLD in pediatric populations are limited and often focus on isolated aspects such as diet or physical activity, with little attention given to other parameters like sleep habits. The aim of the present study is to comprehensively investigate the association between lifestyle factors, including dietary habits, physical activity, sedentary activities, and sleep habits, and the presence of MASLD in a sample of 224 children and adolescents with overweight or obesity. The study will include newly diagnosed MASLD patients compared to matched controls without the disease. A wide range of assessments will be conducted, including anthropometric measurements, body composition analysis, liver elastography, biochemical testing, and standardized lifestyle questionnaires. This study seeks to fill important research gaps and explore potential associations between lifestyle habits and pathophysiological markers involved in the onset and progression of MASLD.
NCT07097987
The goal of this clinical trial is to evaluate the physiological effects of a WM Formula on glucagon-like peptide-1 (GLP-1) secretion and glycemic regulation in adults with elevated body fat percentage. The WM Formula is a multi-component dietary supplement composed of Bifidobacterium breve (probiotic), ClpB Formula-a prebiotic blend containing probiotic kombucha extract, soy peptide powder, L-arabinose, and erythritol-and rocket apple extract. Participants enrolled in the study will be required to undergo blood collection, height measurement, body composition analysis, and questionnaire completion. Each testing session will take approximately 5 hours, and participants will need to complete two trial visits in total. There will be a 7-day washout period between the two trial sessions (i.e., after completion of the first trial, the second trial will be scheduled at least 7 days later). On each trial day, blood samples and relevant assessments will be conducted at the following time points: before ingestion of the test product or water, and at 15, 30, 45, 60, 90, 120, and 240 minutes post-ingestion.
NCT07095426
Based on prior research, the investigators are interested in whether an intervention targeting gut health (supplemental fiber for 9 weeks total) will improve vascular health in individuals with obesity. Additionally, the investigators are interested in if this response differs based on whether individuals with obesity have very few heart disease risk factors or several heart disease risk factors.
NCT03514602
The objective of this study is to test the effect of smoking cessation in pregnancy or in lactation on preventing rapid infant adiposity gain. Investigators propose a randomized, controlled experiment among smoking pregnant women from 1st prenatal care visit through 6 months of postpartum period. Two-phase randomization will be applied to separate the effects of smoking cessation in two different critical periods (i.e., pregnancy and lactation) on infant adiposity gain. Investigators will first randomly assign 40 smoking pregnant women into either the multicomponent intervention (N=30) or the education-only control group (N=10). The multicomponent intervention group will receive education and counseling, monitoring and feedback, contingent financial incentives, and family support, while the control group will receive education only. At the end of pregnancy, investigators will further randomize successful quitters (estimated N=20) from the multi-component intervention group into either the continuous multi-component intervention group in lactation (N=10) or the education-only control group (N=10). All women and their newborns will be followed from enrollment to 6 months postpartum. The key outcomes include maternal smoking abstinence confirmed by urine-cotinine and infant gain in weight-for-length z-score. Specific Aim 1 is to examine the effects of maternal smoking cessation intervention in pregnancy on infant gain in weight-for-length z-score from birth to 6 months. Specific Aim 2 is to examine the effect of maternal smoking abstinence intervention in lactation and infant post-weaning gain in weight-for-length z-score among the women who have successfully quit smoking in pregnancy.
NCT06848244
Black Americans are disproportionately affected by diabetes, with nearly double the rates of type 2 diabetes mellitus (T2DM), compared to non-Hispanic White adults. Though numerous factors affect these disparities, one modifiable risk factor may be that of binge eating (BE), which increases risk for binge-eating disorder (BED), which is associated with severe obesity, and often precedes a T2DM diagnosis, beginning in childhood or adolescence. Nearly 30% of Black women with obesity report binge eating episodes. Furthermore, given that binge and overeating may disparately increase the odds of obesity in Black adults (15-fold increase vs. 6-fold increase in White adults), reducing this behavior will be critical to prevent continued disparities in T2DM diagnosis. Given that Black women have the highest rates of obesity in the nation (57%), report disparate rates of weight gain between young adulthood and mid adulthood, and report disparate rates of emotional eating in adolescence, which is a risk factor for BE, one pathway to reducing disparities in T2DM risk in Black women may be to reduce binge eating and prevent weight gain in emerging adulthood (ages 18-25).
NCT05865912
This study will investigate the feasibility of combining an app-based Mindfulness training (MT) with at-home administered transcranial direct current stimulation (tDCS) in adults with overweight or obesity and assess whether MT with tDCS may improve weight-related behaviours in this population. Specifically, the study will assess whether MT+ active tDCS, as opposed to MT+ sham tDCS or waiting list control, reduces high calorie food craving and consumption. Findings will inform the development of a future large-scale randomised controlled trial. The trial will be conducted in the UK.
NCT05221229
Atrial Fibrillation (AF) is the most common abnormal heart rhythm(arrhythmia) affecting about one in 40 people in England. Patients with AF often have symptoms ranging from palpitations and breathlessness, and a small number of patients may develop heart failure. The major complication of AF is stroke, and this is effectively treated with blood thinning medications (anticoagulation). AF symptoms can lead to significant decline in quality of life and can affect patients' ability to work and exercise. There are numerous treatments targeted at maintaining normal rhythm and preventing AF recurrence. These include medications and catheter ablation. Ablation has been shown to be more effective than medications for the long-term control of AF, but its efficacy is significantly reduced by upstream conditions such as high blood pressure, obesity, diabetes, and poor fitness levels. This results in increased complications, repeat procedures, and increased AF recurrence or patients. Research currently available has shown that intensive risk factor control with weight loss and increased fitness can reduce AF burden and improve results from ablation. However, achieving these targets outside of a clinical trial have been challenging. Recent data has shown that a new class of drug (Liraglutide) can result in significant weight loss over a 3-month period, and pre-treatment prior to liver transplant has improved results and patient recovery. The overall aim of this study is to determine if accelerated weight loss by Liraglutide before AF ablation is feasible to base a future trial to inform if this approach improves outcomes and can be safely adopted into routine clinical practice.
NCT07058207
This is a feasibility study intervention to fifty cancer patients with obesity and with newly diagnosed stage II-IV solid tumors undergoing curative treatment recruited at the Catalan Institute of Oncology (ICO) in L'Hospitalet, Spain. The investigators hypothesize that weight management during cancer treatment could enhance health outcomes for this population. The feasibility of a multimodal weight loss management program will be assesses, including a personalized hypocaloric and high-protein diet combined with a supervised exercise home-program and behavioural support.
NCT06912100
This is a pilot research study to investigate the effects of a probiotic supplement (L. acidophilus, strain TW01) on substances found in the stool and bloodstream, gut bacteria composition, body composition, as well as any relationship of these substances with markers of inflammation. Lactobacillus acidophilus is commonly found in a variety of fermented foods, including yogurt, cheese, and kefir, due to its ability to produce lactic acid and other substances. This bacterium is generally well-tolerated in healthy individuals and has a longstanding history of safe use. The investigators are doing this pilot study to see if a particular probiotic, called L. acidophilus (strain TW01) and isolated from fermented coffee grounds, can make a positive difference in human gut and overall health. Specifically, the investigators want to look at how this probiotic affects certain substances in human stool and blood, the makeup of the bacteria in the gut, and aspects of body composition. The investigators are also interested in whether these changes relate to markers of inflammation, which can tell us more about their impact on overall health. This probiotic strain has been shown in other studies to be safe and well tolerated, and the investigators hope our research will help us better understand how it works and whether it might support health in humans.
NCT06691100
This study aims to elucidate the differences in the gut microbiome functional activity and metabolome in adult premenopausal women with distinctive fitness levels and BMIs (with obesity, w/o obesity). The specific aims are as follows: * Aim 1: To examine the effects of acute aerobic exercise at 60-70% heart rate reserve (HRRmax) for 30 minutes bout on changes in the abundance of SCFA-producing bacteria and their functional downstream metabolic activity. * Aim 2: To examine the effects of acute aerobic exercise at 60-70% HRRmax 30-minute bout on changes in GM-released SCFA concentrations in stool and plasmatic metabolome.
NCT03946423
This is a feasibility study to gain an understanding of the willingness of women with a history of early stage breast cancer and current obesity to enroll in a weight-loss study, accept an assigned intervention (bariatric surgery with lifestyle intervention or lifestyle intervention alone), and comply with the study plan for 1 year. If there is successful enrollment in this study, the plan is to use what is learned in this study to design a larger, longer-term clinical trial to look at the effect of weight loss and incidence of cancer recurrence.
NCT05882045
The main purpose of this study is to evaluate the efficacy and safety of retatrutide once weekly in participants with obesity and established cardiovascular disease (CVD). The study will last about 113 weeks.
NCT07079046
This study evaluates the efficacy of Satisens®, a dietary supplement composed of plant extracts, in reducing emotional eating and sweet cravings in healthy adults. The study will analyze hormonal, neurotransmitter, and inflammatory markers to understand the underlying mechanisms.
NCT06966934
Gastroscopy is a commonly used, direct, and reliable method for screening and diagnosing digestive tract diseases. However, as an invasive examination, it can cause adverse reactions such as pain, nausea, vomiting, and choking cough in patients. Compared with ordinary gastroscopy, painless gastroscopy offers higher comfort and satisfaction for patients and greater convenience for endoscopists during operation. The most common complication of painless gastroscopy diagnosis and treatment is hypoxia. High-flow nasal cannulala (HFNC) provides a higher oxygen concentration and flow rate than an ordinary nasal catheter. It has the functions of heating and humidifying, which can relieve the pressure on the nasal mucosa cilia, keep the airway unobstructed and moist, and reduce the risk of epistaxis. Due to changes in airway anatomical structures such as fat accumulation in the head and neck and hyperplasia of oropharyngeal soft tissues, obese patients are more prone to hypoxia during gastroscopy under sedation. Therefore, HFNC is often used to reduce the occurrence of hypoxia. The nasopharyngeal airway (NPA) is used to maintain the patency of the upper respiratory tract and is suitable for patients with spontaneous breathing but partial obstruction of the upper respiratory tract. It is worth exploring how effective the combination of HFNC and NPA is in improving hypoxemia in obese patients during sedation.
NCT06211556
The aim of this randomized trial is to determine whether liver fat depletion via a short-term (i.e., two weeks) very-low calorie diet will restore the normal exercise-induced secretion of a signaling protein (fibroblast growth factor 21) from the liver in people living with type 2 diabetes. Participants will have their liver fat, body composition, and various markers of metabolic health assessed and then will be randomized to either the very-low calorie diet intervention or a free-living control group for two weeks. Upon completion of the two-week intervention period, participants will redo all of the pre-intervention assessments. The changes in the assessments from before vs. after the intervention period will be compared between the two intervention groups (i.e., the very-low calorie diet group vs. the free living control group).
NCT06286761
The purpose of this research study is to validate (check the accuracy of) laboratory assays, intravenous catheter insertion, and equipment or devices and their reproducibility, which is necessary to perform high quality research on chronic diseases (obesity, pre-diabetes and type-2 diabetes, dyslipidemia, non-alcoholic fatty liver disease, cardiovascular disease, etc.), nutrition, and metabolism (the process by which a substance is handled in your body) at the University of Missouri. As technology changes and we start to use new testing methods, it is necessary to compare results from old tests, equipment and devices and new tests, equipment, or devices and the reproducibility of these measurements to make sure we are getting accurate results. Reproducibility means performing the same test more than once to see if the same results can be achieved each time.
