Active clinical trials for "Obesity, Morbid"

Changes to gastric pH, gastric emptying time, gastrointestinal transit-time or the pre-systemic metabolizing effect of enzymes secreted in the mucosa may all alter the pharmacokinetics of medicines. These factors are potentially influenced by bariatric surgery. Little is so far known about how gastric bypass and sleeve gastrectomy impacts the biological availability of medication. In this study the pharmacokinetic effects of bariatric surgery on losartan are investigated.

Changes to gastric pH, gastric emptying time, gastrointestinal transit-time or the pre-systemic metabolizing effect of enzymes secreted in the mucosa may all alter the pharmacokinetics of medicines. These factors are potentially influenced by bariatric surgery. Little is so far known about how gastric bypass and sleeve gastrectomy impacts the biological availability of medication. In this study we investigate the pharmacokinetic effects of bariatric surgery on chlorprothixene.

Custom-made orthopedic support equipment and abdominal-lumbar support belts offer promising potential for several aspects affecting the health and well-being of people with obesity who choose a surgical weight loss option. However, research is needed to quantitatively document their short and long term effects on a wide range of parameters related to mobility, quality of life, lower back pain and skin maceration following parietal gastrectomy. The objective of this study is to characterize the effect of a support garment in an experimental design where a subgroup of participants will be randomized and followed for the first 12 months after a gastrectomy. The measures will be: physical activity, lower back pain, self-esteem, quality of life, skin maceration and infections. This study will scientifically document the usefulness and effectiveness of support garments throughout the weight loss surgery process.

Obesity affects 3%-4% of the pediatric population and leads to cardiac mortality during adult life. Bariatric surgery is the best treatment for weight loss and preventing obesity associated comorbidities in adults, but its applications and safety are yet to be defined for adolescents.

The current proposal aims to investigate implicit and explicit priming paradigms for changing cue-dependent and goal-directed nutritional behavior in participants with severe obesity before and after bariatric surgery as well as in a control group with normal weight.

The goal of this clinical trial is to compare, in a population of severely obese patients, two different kinds of follow-up after discharge from in-hospital rehabilitation programme. The main questions addressed are: primary outcome: comparing the dropout rate at month 11 of patients followed-up by a telemedicine methodology with that of a traditional outpatient visit follow-up. secondary outcome: comparing the amount of weight loss at month 11 in patients followed-up by telemedicine with that registered in patients followed-up by traditional outpatient visits. Participants are given a set of instruments (scale, activity tracker, automatic blood pressure monitor, oxymeter, and glucometer) and asked to measure vital parameters following a predetermined schedule for one year. Subjects are asked to engage in regular physical activity and follow the nutritional guidelines received at the moment of discharge from hospital.

The goal of this cross-over study in obese subjects is to learn about the common co-morbidity type 2 diabetes and the local formation of ketone bodies. The type of study is an exploratory trial with the participants as own controls. The main questions it aims to answer are: 1. Does food intake-induced ketogenesis exist in the small intestine of obese individuals? 2. Are insulin resistance, the incretin GLP-1 release and the glucose transporter SGLT1 affected in obese individuals without type 2 diabetes in the same way as those with type 2 diabetes?

Assess the effectiveness of utilization of endoscopically placed intra-gastric balloon in obese and morbid obese adolescents combined with behavioral support for weight loss and health optimization.

Complications associated with excess weight (hypertension, coronary artery disease and diabetes) have become major causes of morbidity and mortality after liver transplantation (LT). To ensure excellent long-term outcomes with LT it is critically important to understand the best strategies to minimize obesity and its associated complications in our patients. Weight loss can be achieved through dieting and exercise, but most patients are unable to maintain the weight loss. In the general population, bariatric surgery is much more effective than medical treatment for permanent weight loss and prevention or reduction of obesity-associated complications. The purpose of this study is to determine the safety and effectiveness of performing sleeve gastrectomy (SG) procedure in the early post-LT period in obese patients. The patient population for this study will be anyone listed for liver transplantation at Toronto General Hospital (University Health Network, Toronto, ON, Canada) and meeting the current standard criteria for bariatric surgery (BMI>40, or BMI>35 with at least 1 obesity-related complication).This study will randomly assign eligible participants to one of two groups (1:1). Patients in group 1 will receive standard lifestyle/diet counselling while patients in group 2 will undergo SG-specific counselling prior to transplant and the SG procedure within 2 weeks of LT (if safe to do so). All participants will be followed for 12 months.

Investigation of underlying metabolic mechanisms and impact on the two surgical procedures on inflammatory factors.