Clinical Research Directory

A Study of EloraTZP in Adult Participants With Obesity or Overweight and Type 2 Diabetes

The purpose of this study is to investigate the efficacy and safety of eloralintide and tirzepatide coformulation (EloraTZP) compared to tirzepatide for body weight reduction in participants with obesity or overweight and type 2 diabetes. Participation in the study will last about 2 years.

The Impact of Nicotinamide Mononucleotide Sustained-release Tablets on Immunosenescence and Metabolism in Middle-aged and Elderly Individuals With Metabolic Disorders.

This study evaluates whether nicotinamide mononucleotide (NMN) sustained-release tablets affect markers of immune system aging in adults aged 50 to 70 years with overweight or obesity and metabolic disorders. It compares NMN, 1,000 mg once daily for 26 weeks, with a matching placebo. The main assessment is the change from baseline in the proportion of a blood T-cell population associated with immune system aging. The study also evaluates liver fat, blood sugar regulation, body composition, other immune and metabolic markers, and cardiorespiratory fitness, together with laboratory measures of safety.

A Study to Investigate the Effect of LY4086940 Versus Placebo in Participants With Obesity or Overweight and Without Type 2 Diabetes

The purpose of this study, performed under the master protocol W8M-MC- CWMM (NCT06143956), is to evaluate the efficacy and safety of LY4086940 compared with placebo in participants without type 2 diabetes who have obesity or who have overweight with a weight-related health condition. Participation in the study will last about 58 weeks.

Abdominal and Core Exercises on Respiratory Functions in Obese and Overweight Women (COREBREATH)

This study aims to examine the effects of an 8-week Pilates-based exercise program on breathing functions in overweight and obese women (BMI ≥ 25). The program includes exercises for abdominal endurance and core stabilization, performed three times a week. Participants will be divided into two groups: an exercise group and a control group. Before and after the program, measurements will include lung function (spirometry), breathing rate, breath-holding time, abdominal mobility, core endurance (curl-up test), and quality of life (SF-36 questionnaire). The goal is to find out whether this type of exercise can improve breathing and overall health in women with excess weight.

Effects of Concurrent Training on Serum PCSK9 Levels in Adults With Overweight

Being overweight can increase the risk of heart disease. PCSK9 is a protein that helps regulate cholesterol levels in the blood. Exercise may affect PCSK9 levels, but previous studies have reported conflicting results. The purpose of this study is to determine whether a program combining aerobic exercise and resistance training changes blood PCSK9 levels in adults with overweight. The researchers will also examine changes in blood cholesterol levels and body composition. A total of 42 adults aged 18-40 years with overweight will be randomly assigned to one of two groups. One group will participate in a supervised exercise program three days per week for eight weeks. Each session will last approximately 60 minutes and include aerobic exercise, resistance training, warm-up, and cool-down periods. The other group will continue their usual daily activities without participating in a structured exercise program provided by the study. Blood samples and body measurements will be collected before the program, after four weeks, and after eight weeks. Participants will also record their usual food intake and physical activity during the study. The researchers expect that the combined exercise program may reduce blood PCSK9 levels compared with maintaining usual daily activities. The findings may help improve understanding of how exercise affects cholesterol regulation in adults with overweight.

A Study of Eloralintide (LY3841136) in Participants With Obesity or Overweight, Type 2 Diabetes, and Increased Cardiovascular Risk

The main purpose of this study is to evaluate the efficacy and safety of eloralintide compared with a placebo in participants with obesity or overweight, type 2 diabetes, and increased cardiovascular risk.

Guangzhou Preterm and Term Birth Cohort Study

The Guangzhou Preterm-Term Birth Cohort (GPTBC) is a prospective observational study of how early-life nutrition, environmental exposures, and family factors relate to the health and development of preterm and term infants and their mothers. Mother-infant pairs are followed from birth to 24 months. Researchers use questionnaires and biological samples to study human milk, microorganisms in the infant gut, physical growth, development, and allergic diseases, and whether these relationships differ between preterm and term infants. Findings may inform nutrition and health strategies for infants born at different gestational ages.

NYUCI-ES: Psychosocial Intervention to Improve Health Outcomes for Chinese and Korean ADRD Caregivers

This study will conduct a two-arm randomized controlled trial to test the efficacy of a culturally tailored version of the NYU Caregiver Intervention (NYUCI) plus enhanced support (ES) through online chat groups (the NYUCI plus WeChat/Kakaotalk/other social media apps \[popular social media apps for individuals of Chinese or Korean descents\] peer support which we call the NYUCI-ES in reducing health risks for cardiometabolic disease among older Chinese and Korean American adults caring for relatives with ADRD. In collaboration with community organizations across the New York and northern New Jersey metropolitan area, we will enroll 300 caregivers of people with ADRD (150 Chinese and 150 Korean) in this study. Aim 1: Develop culturally adapted informational and educational materials about dementia and caregiving issues for social service providers of the intervention and for family caregivers. Aim 2: Test the hypothesis, H1: A counseling and support intervention (the NYUCI-ES) will significantly improve psychosocial factors such as depression, stress self-rated health and chronic disease management among Chinese and Korean-American ADRD caregivers and these changes will be mediated by improvement in social support. H1a: By the first (6- month) follow-up, the mediators (increases in social support, stress reaction) will improve significantly in the intervention group compared to baseline values and the control group. H1b: These improvements will be maintained, and lead to reduction in depressive symptoms, and improvement in self-reported health and chronic disease self-management by the 12-month follow-up compared to the control group. Aim 3: Test the hypothesis, H2: the NYUCI-ES will reduce biologic risk factors, including metabolic health (glycosylated hemoglobin, BMI) and inflammation (hsCRP, lipid metabolism, etc.) within 6 months of enrollment compared to baseline and a control group; these changes will be mediated through increases in social support and decreases in depressive symptoms and will be maintained at the 12-month follow-up. The public health significance of these findings will likely have an impact on health care policy for CGs from diverse underserved ethnic and cultural backgrounds, potentially reducing morbidity, and improving their quality of life.

Diet Order Effects of Low Fat vs. Low Carb Diets on Body Fat Change

Background: In a previous study, participants were lived at the NIH and randomly received either a low-fat or a low-carbohydrate diet for 2 weeks and then switched to the other diet for 2 more weeks. Participants who received the low-carbohydrate diet first lost more body fat at the end of the study than those who received the low-fat diet first. Researchers want to see if they can repeat that result in a longer weight loss study when participants live at home. Objective: To test the effects of diet order in people receiving either a low-fat or low-carbohydrate diet first for 4 weeks and then immediately switched to the other diet for another 4 weeks. Eligibility: Adults aged 19 to 50 years with a body mass index of 25 or more. Design: Participants will complete the study at their homes, but there will be 3 required visits to the NIH. Participants will drink a special type of water 2 weeks before the baseline NIH visit and collect urine samples at home to measure how many calories they burn. Before the diets begin, participants will visit the NIH for baseline testing when they will have a metabolism test while relaxing in a bed with a plastic hood over their head to collect the air they breathe out. They will have scans to measure their bone density and how much muscle and body fat they have. They will give stool, blood, and urine samples. Participants will be asked to eat a specific diet for 4 weeks followed by a different diet for 4 weeks. All meals will be delivered to the participants' homes. They will eat only the foods delivered. Participants will weigh themselves daily. They will wear a monitor to track their physical activity and a sensor to measure their glucose levels. They will prick their finger each morning to test a drop of blood for ketones. Participants will meet virtually as a group with the study team weekly. Participants will have two more NIH visits towards the end of each diet period....

Comparing the Extent to Which Maridebart Cafraglutide is Made Available in the Body of Participants Living With Overweight or Obesity After Switching From Glucagon-like Peptide-1 Receptor Agonists (GLP-1RA)

The primary purpose of the study is to assess the pharmacokinetics of maridebart cafraglutode after switching from weekly GLP-1RA in participants living with overweight or obesity.

Transcutaneous Auricular Vagus Nerve Stimulation Combined With Lifestyle Intervention for Visceral Fat Reduction in Adults With Overweight or Obesity

This is a single-center, randomized, open-label controlled trial with blinded outcome assessment and data analysis. Fifty adults with overweight or obesity (body mass index \[BMI\] \>= 24 kg/m2) and a sedentary lifestyle will be randomly assigned in a 1:1 ratio to one of two groups: (1) a transcutaneous auricular vagus nerve stimulation (taVNS) group, in which participants self-administer taVNS at the cymba conchae of both ears on alternating days (20 Hz, dense-disperse mode, twice daily, 30 minutes per session, 5 days per week for 4 weeks) in addition to a standardized lifestyle program; or (2) a control group receiving the lifestyle program alone. The lifestyle program prescribes a daily energy intake of 1,000-1,500 kcal (55-60% carbohydrate, 25-30% fat, 20% protein) plus aerobic exercise of at least 30 minutes per session, 3 times per week. The primary outcome is the change in visceral fat index (VFI) from baseline to week 4. Secondary outcomes include changes in body weight, BMI and body fat percentage, as well as changes in thalamocortical functional connectivity, effective (directed) connectivity, and whole-brain functional network topological properties assessed by resting-state functional magnetic resonance imaging (fMRI), and their associations with changes in obesity-related indicators. Assessments are performed at baseline (week 0) and after the 4-week intervention (week 4).

FutureShape Family

The number of adults and children living with obesity is increasing worldwide. Once childhood obesity has developed, more than 80% of children carry the obesity into adulthood, with a high risk of cardiometabolic disease, poor mental health, and decreased life expectancy. Parental obesity is a strong predictor of intergenerational obesity and is closely associated with a child's body composition from childhood through to adulthood. Obesity pharmacotherapy effectively reduces body weight. In adults, we have shown that combining obesity pharmacotherapy with supervised exercise improves weight-loss maintenance compared with pharmacotherapy alone. Emerging evidence suggest that exercise may also limit weight regain after treatment cessation. Together with evidence linking physical activity, sleep, and eating behaviours to weight regulation, these findings support combining pharmacological treatment with interventions targeting multiple modifiable behaviours. Personalised, data-driven feedback may further facilitate sustained behavioural change, but few interventions have integrated these approaches within the family setting. This 58-week randomized clinical trial aims to investigate the separate and combined effects of a data-driven, multimodal family-based intervention and semaglutide treatment for parents with obesity on body fat percentage and other health-related outcomes in parents and children. Approximately 400 families will be randomly assigned to one of four groups combining data-driven, multimodal family-based intervention or standard health advice with semaglutide or placebo. The data-driven, multimodal family-based intervention focuses on physical activity, diet, sleep and mental well-being. The trial will include families with at least one parent with obesity and at least one child aged 5 to 12 years with overweight or obesity. Participating parents with obesity will receive semaglutide or placebo once weekly for 28 weeks. The main outcomes are changes in body fat percentage in participating parents and children. Other outcomes include changes in body mass index (BMI) in parents and age- and sex-adjusted BMI, known as BMI z-score, in children. Families will participate in the main trial for 58 weeks and complete an additional follow-up assessment at week 104 after randomization.

Evaluating the Impact of Maridebart Cafraglutide on Cardiovascular Outcomes in Participants With Atherosclerotic Cardiovascular Disease and Overweight or Obesity

The primary objective of this trial is to demonstrate that maridebart cafraglutide is superior to placebo when given as an adjunct to standard of care with respect to reducing cardiovascular (CV) morbidity and mortality.

Effects of Sucralose on Drug Absorption and Metabolism (The SweetMeds Study)

Background: Artificial sweeteners like sucralose are found in many foods and drinks. Sucralose might affect hormones and cause health changes. Objective: To see if sucralose changes how medicines are absorbed and processed, how hormones are secreted, gut bacteria, and how fat cells are metabolized. Eligibility: People ages 18-60 who: * Are black or Hispanic * Weigh more than 110 pounds * Have a body mass index of 25-40 * Do not have a condition that requires drug treatment Design: Participants will be screened with: * Medical history * Physical exam * Blood, heart, and urine tests Participants must not eat or drink anything with artificial sweeteners throughout the study. Over 7 days, Participants will answer questions, and give daily urine samples and 1 stool sample. Participants will repeat these throughout the study. Overnight Visit 1: participants will fast starting the night before. They will get breakfast at the visit. The visit includes: * An IV will be placed in the arm. Participants will get 2 tablets of medicines. Blood will be drawn several times over 24 hours. * A piece of fat tissue may be taken from the abdomen (biopsy). * Participants will have a sweet drink. Blood samples will be taken over 2 hours. Then participants will be randomly assigned to take either a sucralose capsule or placebo. They will take it twice a day for 2 weeks. They will complete two 24-hour food diaries. Overnight Visit 2 repeats Visit 1 except the biopsy. Then participants will take the capsules for another 2 weeks. Overnight Visit 3 repeats Visit 1. Participants may be contacted by phone within 4 weeks after they finish....

Cross-Sectional and Longitudinal Studies of "Pre-Diabetes" in the Pima Indians

Insulin resistance and a defect in early insulin secretion are risk factors for the development of type 2 diabetes mellitus. A recent longitudinal analysis which tracked the development of diabetes demonstrated that both insulin action and early insulin secretion deteriorate as individuals progress from normal to impaired glucose tolerance and then to diabetes. These results suggest that both inherent (apparent in normal glucose tolerant subjects who progress to diabetes and likely to have a genetic basis) and acquired (evident as individuals progress from NGT to IGT to diabetes and possibly environmental in origin) defects in insulin action and secretion contribute to the pathogenesis of type 2 diabetes. To identify the genetic and environmental determinants of diabetes we are continuing to determine: (1) if there are genes that segregate with metabolic risk factors for diabetes which might therefore be genetic markers for type 2 diabetes and (2) the mechanisms mediating genetic and environmental determinants of insulin resistance and impaired insulin secretion. \<TAB\> Volunteers for this study will be admitted to the clinical research ward where they will undergo several tests to determine body composition, oral and intravenous glucose tolerance and in vivo insulin action. In addition, in selected subjects, adipose and/or skeletal muscle tissue will be obtained by percutaneous biopsy for in vitro studies of gene expression and insulin action in these tissues. A transformed lymphocyte cell line will be established for each subject as a permanent source of DNA for genetic studies. Genetic markers for type 2 diabetes and insulin resistance will be sought by typing each individual at positional and functional candidate loci in the hopes of finding an association between these loci and obesity, insulin secretion, insulin resistance and/or type 2 diabetes.

A Study of CT-868 in Type 1 Diabetes Mellitus

This study will evaluate the changes in glycemic control in overweight and obese adults with Type 1 Diabetes Mellitus after receiving CT-868 for 16 weeks. The effectiveness and safety of CT-868 will be compared to placebo. All participants will continue with their standard diabetes care using either an insulin pump (CSII) or multiple daily injections (MDI). Alongside their designated treatment, participants will receive guidance on managing their diabetes, including monitoring blood glucose levels and diet and exercise recommendations. Treatment assignments, either CT-868 plus insulin or placebo plus insulin will be randomly determined.

The Influence of Honey-flavored Yogurt on Low-grade Inflammation and Gut Health in Middle to Older Aged Women.

A randomized, double-blind, crossover dietary intervention trial will test the effects of 4 weeks of daily honey-flavored yogurt intake on markers of inflammation (Th17 cytokines) and oxidative stress (NOX2, UA, RSNO) and associative changes with microbial derived metabolites (SCFAs, BAs, ellagitannins), metabolism and the fecal microbiome. The above suite of selected markers will capture diet-induced systemic changes in inflammation and oxidative stress, while assessing associated microbial changes.

Safety and Efficacy of ABBV-295 in Adults With Obesity or Overweight With Weight-Related Comorbidities

Obesity is a condition where a person has excessive body fat, defined by a body mass index (BMI) of 30 kg/m2 or higher. The goal of this study is to evaluate the effect of various doses of ABBV-295 compared to placebo on reducing body weight at Week 32 in participants with obesity or overweight with weight-related comorbidities. ABBV-295 is an investigational long-acting amylin analog being developed for chronic weight management. Participants are placed into multiple treatment groups with different dosing paradigms of ABBV-295 or placebo. Participants will not know which treatment they are receiving, and there is a chance of being assigned to placebo. Adults with obesity or overweight (as defined by BMI) with weight-related comorbidities will be enrolled. Approximately 360 participants will be enrolled in the study at approximately 70 sites in the United States and Puerto Rico. Participants will receive subcutaneous (SC) injections of ABBV-295 solution for injection or matching placebo administered via pre-filled syringes for 52 weeks during the Double-Blind Period. There may be higher treatment burden for participants in this trial compared to their standard of care due to study procedures. Participants will attend regular visits during the study at a hospital or clinic. The effects of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

A Study to Evaluate the Effects of a Dietary Supplement on Weight Management and Appetite Control

This is a randomized, double-blind, placebo-controlled, decentralized clinical trial evaluating the effects of MN Nutra GeLiPthin-1™, a multi-ingredient dietary supplement, on body weight, BMI, waist circumference, appetite, satiety, and energy levels in overweight and obese adults over six weeks. A total of 170 generally healthy adults aged 18-65 years with a BMI of 27.0-35.0 kg/m² will be randomized 1:1 to receive either the active supplement or a matching placebo. Participants will take three capsules orally twice daily for six weeks. All study activities are conducted remotely, including electronic consent, self-administered anthropometric measurements using a sponsor-provided Withings Scale and tape measure, and weekly online questionnaires via the Citruslabs digital study platform. The primary outcome is change in body weight from Baseline to Week 6.

Effects of SlimTrack® Platform on Diet Adherence, Anthropometry and Arterial Stiffness in Postmenopausal Women

Introduction:The weight gain expected in the postmenopausal period has deleterious effects on the physical and mental health of the female population. Management of this situation strongly recommends regular exercise, behavioral and psychological interventions and dietary control. Activities of this nature can be carried out online. The SlimTrack Platform is an interactive digital platform for management and treatment of overweight and obesity in Non-Dietary Weight Loss basis. The first phase consisting of 3 stages of 7 days (total 21 days) presents tools to deal with thoughts and emotions, in addition to offering a series of physical activities that promote body self-awareness and movement needs. Therefore, this study aims to evaluate the effects of this MVP on adherence to the diet, body weight variation, anthropometric variables and arterial stiffness in postmenopausal women, in addition to verifying the accuracy of self-reported measurements on the platform. Methods:Randomized clinical trial will recruit overweight and obese volunteers to evaluate body weight variation, anthropometric variables and arterial stiffness (oscillometric method, obtaining central arterial pressure indices, pulse wave velocity (large artery stiffness) and Aix 75 to identify stiffness of small arteries). Patients will be randomized to the following interventions: Diet, SlimTrack Platform, Diet + SlimTrack Platform and Control. The interventions will have in-person assistance once a week. The data obtained will be analyzed by intention to treat and presented as means (M) ± standard deviation (SD). They will be tested for normality using the Shapiro Wilk test. The differences between interventions will be made through GEE. Correlations between variables will be obtained using Pearson Correlations for parametric data and Spearman Correlations for non-parametric data, with a significance level of p \< 0.05. Expected results:Results are expected that point to the effectiveness of non-dietary support (SlimTrack Platform) in both diet adherence and body weight reduction. Furthermore, through comparisons between groups, it will be possible to elucidate the influences of weight reduction, diet and physical activity levels on arterial stiffness.

Individual Variability in Energy Compensation After a 12-Week Supervised Exercise Intervention

This prospective, single-arm interventional study will investigate why adults receiving the same prescribed dose and relative intensity of exercise show divergent changes in energy balance, body weight, and body composition. A total of 150 sedentary Chinese adults aged 18-40 years with overweight or obesity will complete a 12-week, supervised treadmill exercise programme. Exercise will be performed five times per week at an intensity corresponding to 60% of each participant's measured maximal oxygen uptake. Prescribed exercise energy expenditure will increase progressively from 150 kcal per session in Weeks 1-4 to 250 kcal per session in Weeks 5-8 and 350 kcal per session in Weeks 9-12. The primary objective is to quantify inter-individual variability in energy compensation after the standardized intervention. Detailed measurements will characterize total and resting energy expenditure, energy intake, appetite, physical activity, body composition, glucose dynamics, cardiorespiratory fitness, brain responses to food-related stimuli, and molecular phenotypes. Multi-omics analyses will include gut microbiome, metabolomic, proteomic, extracellular-vesicle, peripheral blood mononuclear cell, and transcriptomic assessments. The study will explore physiological, behavioral, and molecular factors associated with divergent compensatory responses. No randomized comparator group is included; therefore, causal comparisons between exercise and non-exercise conditions are outside the study scope.

A Study of SA030 Injection in Overweight or Obese Participants

This study is the first time SA030 is being given to people. The goal is to understand how safe it is, how well it is tolerated, and how the body processes and responds to a single dose of SA030 in individuals who are overweight or obese. Over the last few decades, more and more people around the world have become overweight or obese, and the numbers keep rising in almost every country. From 1990 to 2021, this problem grew steadily and reached its highest point in 2021.

A Controlled Study to Evaluate the Effects of a Supplement on Weight Loss, Blood Sugar, and Appetite Suppression

This is a randomized, controlled, hybrid clinical trial evaluating the effects of the Evolv GLP-1 supplement on weight loss, blood sugar regulation, and appetite suppression over 12 weeks. Participants are randomized to either the intervention group (8 capsules daily) or a control group receiving standardized healthy eating guidance from the American Diabetes Association. The study enrolls 98 male and female participants aged 18 and older with a BMI of 25-29.9 kg/m2. Primary endpoints include Hemoglobin A1c (HgbA1c) measured via bloodwork at Baseline, Week 6, and Week 12, as well as body weight and waist circumference measurements collected at Baseline, Week 4, Week 6, Week 8, and Week 12. Secondary endpoints capture participant perceptions of appetite suppression, weight loss, blood sugar, and overall well-being via self-reported questionnaires at the same time points.

Improving Glycemic Control With Electrical Stimulation

Once written consent is obtained, the participant will be provided with an accelerometer to be worn for 7 days to assess current physical activity levels. Subjects will be provided with a standardized diet (55/15/30% CHO/PRO/FAT) prior to collection of pre-intervention data of insulin sensitivity. Individuals will then participate in an 8-week electrical stimulation intervention (30min/day, 3x/week) and randomized into placebo/control, NMES, resistance training combined with NMES (RT +NMES), or resistance training (RT) group (n=15 per group), followed by collection of post-intervention data. The control group will receive electrical stimulation up to sensory level, the NMES group will receive stimulation up to tolerable intensity to induce visible muscle contraction, the RT+ NMES will receive stimulation up to tolerable intensity during resistance training, and the RT group will only receive exercise training. Pre-and post-intervention data includes measurements for body composition, resting metabolic rate, VO2max, insulin sensitivity, and comprehensive blood work.