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Obesity clinical trials

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NCT ID: NCT03563287 Completed - Obesity, Morbid Clinical Trials

Effects of LRYGB on Pharmacokinetics of Nine CYP Probe Drugs

Start date: January 27, 2012
Phase: N/A
Study type: Interventional

Due to anatomical and physiological changes caused by the Roux-en-Y gastric bypass (RYGB) bariatric surgery, drug bioavailability after the surgery can be altered. Therefore, post-operative dose adjustment in these patients can be required. The aim of the study was to investigate the effects of laparoscopic Roux-en-Y gastric bypass (LRYGB) surgery on drug pharmacokinetics and cytochrome P450 (CYP) mediated metabolism using a cocktail of nine CYP probe drugs. The cocktail covers nine main CYP enzymes: melatonin (CYP1A2), nicotine (CYP2A6), bupropion (CYP2B6), repaglinide (CYP2C8), losartan (CYP2C9), omeprazole (CYP2C19/CYP3A4), dextromethorphan (CYP2D6), chlorzoxazone (CYP2E1), midazolam (CYP3A4). The changes in pharmacokinetic parameters of the drugs as well as modulation of the activity of CYPs are evaluated before and one year after LRYGB. In the study, the patients administering drug cocktail before surgery and 1 year after LRYGB are served as their own controls.

NCT ID: NCT03556995 Completed - Obesity Clinical Trials

Suggesting Score Scale for Risk of Bleeding in Bariatric Surgery

Start date: January 1, 2013
Study type: Observational

As bleeding is a major risk in bariatric surgeries, we aimed our study to find any predictors to such bleeding within the surgery or 30 days after surgery. The study is a retrospective study collecting patients data, surgeons data, and hospitals data in order to find if any of the factors influencing patients, surgeons or hospitals, has to do with bleeding in these surgeries and if it does impact bleeding in what way. The goal is finding a predictor that it's neutralizing may prevent bleeding in bariatric surgeries.

NCT ID: NCT03553381 Completed - Metabolic Syndrome Clinical Trials

Oxidative Stress, Inflammation, and Lipoprotein in Metabolic Syndrome

Start date: December 30, 2010
Study type: Observational

Obesity is associated with general low grade inflammation and, consequently, of oxidative stress that affects properties and functionality of lipoproteins. Metabolic syndrome exacerbate low grade inflammation. The intentional weight loss of at least 5% of the initial weight can modulate the pro-inflammatory state and reduce the oxidative stress related to the metabolic syndrome, thus diminishing the cardiovascular risk.

NCT ID: NCT03548597 Completed - Obesity Clinical Trials

Evaluation of the Diagnostic of Hepatic Fibrosis With the in Severe Obese Patients Candidates to Bariatric Surgery

Start date: April 4, 2012
Study type: Observational

Background: The XL probe of FibroScan was recently developed to realize liver stiffness measurements (LSM) in overweight patients. Severe obese patients have a high prevalence of liver injuries and could benefit of liver evaluation prior to bariatric surgery. Objectives: Assess the FibroScan applicability, reliability and diagnostic performances in severe obese patients' candidates for bariatric surgery.

NCT ID: NCT03537625 Completed - Obesity Clinical Trials

Effects of Green Tea on Body Weight Reduction and Gut Microbiota

Start date: March 20, 2016
Phase: N/A
Study type: Interventional

The investigators randomly assigned green tea extract, fermented green tea extract, or placebo in adult subjects whose BMI was 25-35 kg/m2. Participants were 40 in each group, and treatment duration was 12 weeks. Primary outcomes were body weight change and fat mass change from baseline to 12 weeks, and secondary outcomes were metabolic parameteres and gut microbiota.

NCT ID: NCT03536364 Completed - Obesity Clinical Trials

Effect of Food Order on Postprandial Glucose Excursions in Pre-Diabetes

Start date: March 1, 2017
Phase: N/A
Study type: Interventional

The natural history of type 2 diabetes commonly follows a pattern of postprandial dysregulation followed by fasting hyperglycemia leading to overt type 2 diabetes. Approximately 38% of the US adult population is estimated to have pre-diabetes. In a previous study of 16 overweight/obese patients with metformin treated type 2 diabetes, using a typical Western meal, investigators demonstrated that a food order in which protein and vegetables are consumed first, before carbohydrate, results in significant lowering of incremental glucose peaks compared to the reverse order. In the present study, investigators seek to expand on the previous findings to gain further insight into the impact of food order in individuals with pre-diabetes, using a meal with different macronutrient composition, in the setting of three meal patterns. The study is designed to be a simple, practical intervention that may have very significant clinical implications for prevention of diabetes in a large population at increased metabolic risk.

NCT ID: NCT03534427 Completed - Blood Pressure Clinical Trials

The Effects of a Jump Rope Exercise Program on Vascular Health, Inflammatory Markers in Prehypertensive Adolescent Girls

Start date: June 5, 2016
Phase: N/A
Study type: Interventional

The purpose of this study was to examine the impact of a 12-week jump rope exercise program on blood pressure, arterial stiffness, vasodilating and vasoconstricting factors, inflammatory markers, and body composition in prehypertensive adolescent girls. Forty prehypertensive adolescent girls participated in this study. The girls were randomly divided into the jump rope exercise intervention group (EX, n=20) and control group (CON, n=20). The EX group performed a jump rope training program at 40-70% of their heart rate reserve (HRR) 5 days/week for 12 weeks (sessions 50 minutes in duration). The CON group did not participate in any structured or unstructured exercise protocol. Blood pressure, arterial stiffness, plasma nitrate/nitrite levels, endothelin-1, C-reactive protein, and body composition were measured before and after the 12-weeks study.

NCT ID: NCT03534310 Completed - Obesity Clinical Trials

Weight Loss With Intensive Lifestyle Modifications Plus Bariatric Surgery Versus Liraglutide 3 mg

Start date: November 2, 2015
Phase: N/A
Study type: Interventional

Background/Objectives: Only 1% of the clinically eligible subjects receive surgical treatment for their obesity, thus other options should be investigated. In this study we aim to assess the effect of intensive-lifestyle-modification(ILM) with or without Liraglutide-3mg daily versus sleeve-gastrectomy(SG) on BMI at 1-year. Subjects/Methods: In this study performed in a University Hospital in Italy, non-diabetic patients eligible for bariatric-surgery are recruited from the weight loss clinic and have the option to choose within three possible weight-loss programs up to complete the allocation of 25 subjects in each arm matched by BMI and age. ILM consists in 600kcal very-low-calorie-diet(VLCD) for 1 month followed by 12kcal/kgbw high-protein, high-fat-diet for 11 months plus 30minutes brisk-walk daily and at least 3 hours aerobic-exercise weekly. SG patients have 1-month VLCD and free-diet thereafter. Patients are evaluated at baseline and at 1,3,6,9 and 12months.

NCT ID: NCT03529461 Completed - Hypoxia Clinical Trials

Use of Non-Invasive Positive Pressure Ventilation in Patients With Severe Obesity Undergoing Upper Endoscopy Procedures

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

The study evaluated the effect of non-invasive positive pressure ventilation (NIPPV) to decrease the incidence of desaturation events in patients with severe obesity undergoing upper endoscopy.

NCT ID: NCT03526783 Completed - Obesity Clinical Trials

MGB/OAGB Versus RYGB After Failed Sleeve

Start date: October 2014
Phase: N/A
Study type: Interventional

Sleeve Gastrectomy is the most performed bariatric procedure worldwide. But a growing number of data documents that some patients have to be surgical revised due to weight regain or gastro-esophageal reflux disease. This study elaborates weather Roux-en-Y gastric bypass (RYGB) or Mini/One anastomosis gastric bypass (MGB/OAGB) is a better second step procedure after failed sleeve gastrectomy.