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Obesity clinical trials

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NCT ID: NCT03075228 Terminated - Obesity Clinical Trials

Comparison of the Microbial Composition in Lean and Obese Subjects

DUPLO
Start date: April 25, 2017
Phase: N/A
Study type: Observational

Rationale: The microbial composition in the small intestine (SI) differs largely from the composition in feces. Many physiological processes related to health, such as immunoregulation and metabolic programming, mainly take place in the SI. Therefore, the SI, from a microbiota perspective, is as relevant as the large intestine. There are indications that microbiota composition is different in lean and obese subjects, and is related to insulin resistance. However, these indications are mainly based on the analysis of fecal samples. Therefore, analysis of the microbiota composition in the more proximal part of the gastrointestinal (GI) tract may provide new insights into the microbial species that are involved or related to metabolic homeostasis at that location. The IntelliCap® CR system offers a minimally invasive tool that is able to collect reliable samples in the SI, as was shown by NIZO in a clinical validation study. The main aim of the current study is to explore and compare the upper GI microbiota composition in lean and obese subjects, in order to generate new leads for development of products that may target the upper GI microbiota community or specific species thereof, which may impact the maintenance of metabolic homeostasis. This may provide new opportunities for the treatment, reduction or prevention of overweight and/or obesity or insulin resistance.

NCT ID: NCT03072901 Terminated - Obesity Clinical Trials

Registry Observing EndoBarrier® Treatment Outcomes in Subjects With Type 2 Diabetes and/or Obesity

Start date: December 2010
Phase: N/A
Study type: Observational [Patient Registry]

The purpose of the registry was to observe the safety and effectiveness outcomes for subjects treated with the EndoBarrier in the post market setting where the product had Conformité Européene (CE mark) regulatory approval and in accordance to the approved Indication For Use.

NCT ID: NCT02914821 Terminated - Obesity Clinical Trials

Do Taxes Reduce the Purchasing of Soda?

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

The study will take place at a cafe managed by university dining services and is located in a university building adjacent to the psychology building. The cafe sells sugar-sweetened beverages and a variety of diet drinks. The campus dining services and the manager of the cafe have given investigators permission to "tax" their sugar sweetened beverages and will provide their sales data for a 12 week period. The investigators will introduce four arms to the experiment. One arm will be baseline data where business 'as usual' will be conducted and no price increases will be implemented on SSBs. In the general tax condition the investigators will introduce a 3 cent/ounce tax on the five SSB flavors the café offers. In the Pre-K tax condition the investigators will institute a 3 cent/ounce tax but will label the tax as proceeds going to Pre-K education. This is designed after the Philadelphia tax that was recently passed where funds were earmarked to benefit childhood education. In the childhood healthy eating program condition the investigators will institute a 3 cent/ounce tax but will label the tax as proceeds going toward childhood healthy eating programs. In all tax conditions the firm will keep the proceeds, but the research team will make a donation to a Pre-K education non-profit and a childhood healthy eating non-profit of the amount generated by the tax during the study period. Each experimental arm will run for 3 weeks total (for a total study period of 12 weeks). The conditions will alternate by week (i.e., week 1: business as usual; week 2: general tax; week 3: pre-K tax; week 4: childhood healthy eating tax; week 5: business as usual, etc). A research assistant will visit the café each week to make any necessary changes to signs that will label the drinks. The investigators will change the signage of the drinks in the cooler during the study period. For the baseline period there will be no changes to the signs made. Currently all beverages are labeled with their name and cost (e.g., Pepsi, $1.89). In the tax conditions the investigators will change the price of the drink (3 cents/ounce) and add a line notifying consumers of the soda 'surcharge' (note "surcharge" will be used in the study because no tax was actually passed by the local government). An example of this sign would be 'Pepsi, $2.29, includes 40 cent sugary drink surcharge.' In the Pre-K tax condition an added line will say, "Pepsi, $2.29, includes a 40 cent sugar sweetened beverage surcharge. Proceeds benefit Pre-K education." In the childhood healthy eating programs condition the text will say, "Pepsi, $2.29, includes a 40 cent sugary drink surcharge. Proceeds benefit Childhood Healthy Eating programs."

NCT ID: NCT02777489 Terminated - Obesity Clinical Trials

Influence of Carboxypeptidase D (CPD) Gene on Body Weight and Fat Mass Reduction by Perindopril in Obese Subjects

GPD-01-01
Start date: February 18, 2016
Phase: Phase 2
Study type: Interventional

The primary objective of this study is to evaluate the Carboxipeptidase D (CPD) genotyping as a predictive biomarker of body weight and/or fat mass reduction in obese patients treated with perindopril. There is nonclinical and clinical evidence that a subgroup of human subjects may present a decrease in body weight and/or fat mass following treatment with perindopril. Although the individual characteristics that determine such effect are still unknown, Gene PreDiT SA (Biocant Park, Cantanhede, Portugal) discovered that certain genetic characteristics (e.g., single nucleotide polymorphisms (SNPs) of CPD gene) may play a role and potentially could serve as a potential predictive biomarker of response to perindopril. These promising results, along with the fact that perindopril is a medicine already in use in clinical practice, led Gene PreDiT SA to decide to proceed with the development of a theranostic approach for the treatment of obesity. Such theranostic approach consists on the use of CPD genotyping to identify obese subjects that could present improved body weight and fat mass reduction following treatment with perindopril. The current clinical trial aims to prove the concept and provide data to design further confirmatory studies. Additionally this study will evaluate the association between CPD SNPs genotypes and response to perindopril; the effect of perindopril in waist circumference, waist/hip ratio, and BMI and the tolerability and safety of perindopril in the study population.

NCT ID: NCT02762487 Terminated - Obesity Clinical Trials

RELIEF Europe Study

Start date: November 2015
Phase: N/A
Study type: Interventional

The purpose of this study is to evaluate the LINX device in patients who have previously undergone laparoscopic sleeve gastrectomy (LSG) for obesity and have chronic gastroesophageal reflux disease (GERD). The study will monitor safety and changes in reflux symptoms.

NCT ID: NCT02758990 Terminated - Obesity Clinical Trials

Interventional Testing of Gene-environment Interactions Via the Verifomics Mobile Application

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

The purpose of this study is to study interactions between genes, lifestyle environmental factors like foods, nutritional supplements and non-invasive medical devices and health factors that can be measured without specialized medical equipment in order to develop lifestyle recommendations tailored to individual genetics for a host of common chronic health conditions.

NCT ID: NCT02717013 Terminated - Obesity Clinical Trials

The Effect of HMB Supplementation on Adipose Tissue Inflammation and Metabolism

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

This study will determine the effects of supplementing beta-hydroxy-beta-methylbutyrate (HMB) on body composition and strength changes during weight loss. When overweight and obese persons lose weight, and in particular in conjunction with dietary restrictions, muscle, bone mass, and muscle strength are also lost. HMB has been shown to preserve muscle mass and strength, and it is thought that HMB may also preserve muscle, bone, and strength during weight-loss.

NCT ID: NCT02696278 Terminated - Obesity Clinical Trials

Hummus for Health: Dietary Quality and Health Outcomes in Toddlers

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

The goal of this study is to examine the effect of increasing children's intake of fiber and unsaturated fat, through daily servings of hummus and vegetables, on their microbiome profile.

NCT ID: NCT02683161 Terminated - Obesity Clinical Trials

Pre to Postoperative Smoking Cessation

Start date: October 2015
Phase: Phase 2
Study type: Interventional

The study will evaluate the feasibility of integrating an intensive pre- post-surgical smoking cessation intervention into a hospital setting, and assess measures of postsurgical recovery as a function of smoking cessation status.

NCT ID: NCT02671331 Terminated - Obesity Clinical Trials

Loop Duodenal Switch Surgery in Morbidly Obese Patients

Start date: January 2016
Phase: N/A
Study type: Observational

The loop duodenal switch (L-DS) is a single-anastomosis biliopancreatic diversion with duodenal switch (BPD-DS) procedure. The original BPD-DS has two-anastomosis and is an accepted and approved bariatric procedure by the American Society of Metabolic and Bariatric Surgery. Preliminary data from Sanchez-Pernaute et al. (2013) indicates that the L-DS procedure is safer and easier to perform as it only requires one anastomosis compared to the BPD-DS, and offers good results for treatment of both morbid obesity and its metabolic comorbidities, including type-2 diabetes mellitus. However, the initial publications of the loop DS still resulted in a small number of patients with total protein malnutrition. For this reason, the investigators will study the loop DS with a modification of the originally published technique with a longer common channel limb (300 cm) to reduce the risk of protein malnutrition For patients with a BMI >50, many are limited to just a sleeve gastrectomy as other bariatric procedures are technically challenging with increased operative risk. A loop duodenal switch may be a safer operation with improved weight loss for the super-morbidly obese patient.