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Obesity clinical trials

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NCT ID: NCT03193229 Recruiting - Obesity Clinical Trials

MapTrek to Increase Activity Among Patients at Risk for Type 2 Diabetes

Start date: May 15, 2017
Phase: N/A
Study type: Interventional

The overarching objective of our work is to provide an inexpensive and scalable m-health tool to increase both volume and intensity of physical activity and reduce sedentary behavior in patients at risk for type 2 diabetes. The objective of this study is to pilot test MapTrek, a text-messaging based intervention.

NCT ID: NCT03193125 Recruiting - Obesity Clinical Trials

Carnitine and Liver Mitochondria Fatty Acid Processing

Start date: June 5, 2017
Phase: N/A
Study type: Interventional

This double-blind, placebo-controlled randomized trial will assess whether 14 days of oral carnitine supplementation modifies mitochondrial fatty acid processing in healthy young adults.

NCT ID: NCT03190785 Recruiting - Obesity Clinical Trials

Benzoates - an Obesogenic Endocrine Disrupting Chemical

Start date: July 2017
Phase: N/A
Study type: Interventional

The benzoic acid derivatives sodium and potassium benzoate are preservatives that are commonly added to food and beverages to inhibit microbial growth and prevent spoilage. In the US the major source of benzoate intake is beverages. Studies have shown that piglets or chicks fed low levels of benzoic acid have greater feed efficiency and gain more weight than control fed animals. It has also been shown that benzoic acid inhibits the release of a key metabolic hormone, leptin, from isolated adipocytes (fat cells). Inadequate leptin levels result in increased appetite, decreased metabolic rate, weight gain, insulin resistance and increased diabetes risk. The primary aim of the proposed research is to directly determine if benzoate consumption in human volunteers results in lower levels of leptin, decreased metabolic rate and increased insulin resistance. If so this would implicate benzoic acid as an obesogen and would help inform more effective approaches to obesity prevention and treatment. A secondary aim of the study is to establish a connection between benzoate exposure and biomarkers in urine that can be used to help treat obese patients.

NCT ID: NCT03189121 Recruiting - Obesity Clinical Trials

Effect of Isocaloric Ultra Processed Versus Unprocessed Diets on Insulin Sensitivity

Start date: June 28, 2017
Phase: N/A
Study type: Observational

Background: Increases in obesity, diabetes, and some metabolic disorders may be linked to how much processed foods people eat. Researchers want to learn more about how processed foods affect metabolic health. Objective: To learn about how a processed versus unprocessed diet affects the body. Eligibility: Men ages 18-50 with stable weight and risk factors for diabetes Design: Participants will be screened over 3 visits. Screening includes: - Medical history and physical exam - Heart and blood tests - Psychiatric questions - Questions about eating, sleeping, and economic status - Riding a stationary bike - Trying a sample meal Between screenings, participants will eat prepared meals. They will wear an accelerometer to measure physical activity. They will write down what foods they eat and monitor their weight. Participants will have two 4-week stays in the clinic. They will: - Eat a special diet - Have activity and weight monitored - Drink water and collect urine samples to measure how many calories they are burning - Have resting energy expenditure measured with a clear hood over the head - Have a scan to measure body fat and bone density using low-dose x-rays - Have a scan on a table that slides into a metal cylinder in a strong magnetic field. They will get earplugs for the loud noises. - Have an ultrasound test to measure blood vessels - Have insulin and glucose infused into an arm vein. Blood will be taken over 10 hours through a plastic tube in the wrist. This will happen 4 times. - Spend multiple 24-hour periods in a room that measures oxygen used and carbon dioxide produced. - Give blood, urine and stool samples - Answer questionnaires and do computer tasks

NCT ID: NCT03181971 Recruiting - Obesity Clinical Trials

School Water Access, Food and Beverage Intake, and Obesity

Start date: August 1, 2016
Phase: N/A
Study type: Interventional

It is widely argued that the promotion of water consumption, as an alternative to sugar-sweetened beverages, can assist in childhood obesity prevention efforts. Yet no studies have tested this argument in real world schools where flavored milk or juices are available. This trial will fill gaps by examining how promoting fresh water intake-both in schools that do and do not provide access to caloric beverages -impacts children's consumption of food and beverages both during and outside of school, and obesity.

NCT ID: NCT03181555 Recruiting - Obesity Clinical Trials

Pilot Study: Identification of a Multi-omic Predictive Signature for Preterm Birth in Obese African American Women

Start date: August 2016
Phase: N/A
Study type: Interventional

1. Determine if the stool or vaginal microbiome and urinary metabolite profiles in a pregnant obese population of African American women differ from their pregnant non-obese counterparts 2. Determine if the stool or vaginal microbiome and urinary metabolite profiles vary by class of obesity and magnitude of excess weight gain in this population of pregnant African-American women. 3. Assess the ability of the stool, vaginal microbiome, or metabolites, or the combination of all biomarkers as predictors of preterm birth (PTB) and onset of labor. 4. Determine if any dietary or clinical variables are correlated with changes in the microbiome or urinary metabolites or modify their association with PTB

NCT ID: NCT03171961 Recruiting - Obesity Clinical Trials

Effectiveness of Online Visit Compared With In-person Clinic Visit on Weight Loss

Start date: June 2017
Phase: N/A
Study type: Interventional

Online visit and online counseling via telemedicine technology is a new service for obese people who wish to lose weight but because of their active lifestyle and time limitation cannot come to clinic. The purpose of this study was to examine the efficacy this technology-based intervention on weight loss in obese and overweight female adults.

NCT ID: NCT03171948 Recruiting - Obesity Clinical Trials

Effects of a Limited Almond Consumption After a Weight Loss Plan on Weight Maintenance

Start date: June 2017
Phase: N/A
Study type: Interventional

The purpose of this study is to assess the effects of limited portion of almond consumption after a successful weight loss by a comprehensive weight loss plan (NovinDiet Plan) on weight maintenance in obese female adults.

NCT ID: NCT03171922 Recruiting - Obesity Clinical Trials

Effects of Internet-based Diet Plus Online Dietary Coach Compared With in Person Clinic Visit Approach on Weight Loss

Start date: June 2017
Phase: N/A
Study type: Interventional

The purpose of this study is to examine the efficacy of an internet based diet plus a regular dedicated dietary coach (ID group) versus clinic visit based weight loss program (CD group) on weight loss in obese and overweight female adults.

NCT ID: NCT03170973 Recruiting - Obesity Clinical Trials

Influence of Exercise on Trans Fatty Acids

Start date: May 2017
Phase: N/A
Study type: Interventional

Introduction: The metabolism of fatty acids in plasma is modulated by their availability in plasma. Individuals with increased weight have increased plasma fatty acids and physical exercise seems to favor the metabolic responses of fatty acid mobilization. Objective: To test the hypothesis that the physical exercise of acute way changes the fatty acids of medium chain of the serum of individuals with increase of the corporal weight. Method: Including 66 women, randomly divided into two groups, control and experiment, overweight, sedentary, and between 18 and 30 years of age. After a 12-hour fast, basal blood collection will be performed. The experiment group, 12 hours after the first collection, will be submitted to a physical exercise session with energy expenditure of 250Kcal. The volunteers in the control and experiment group will make a second blood collection 24 hours after the first one. The fatty acids will be dosed: pelargonic, azelaic, elaidic and oleic by gas chromatography. Intra and intergroup comparisons will be made using the t test for independent and dependent samples, p <0.05.