General Committee Of Teaching Hospitals And Institutes, Egypt

This study looks at 240 adults who had sleeve gastrectomy but later regained weight or didn't lose enough. They will receive one of two types of gastric bypass surgery to see which works better for weight loss, quality of life, and food tolerance over 5 years. The goal is to find…

This study looks at 234 adults who had sleeve gastrectomy but regained weight. It compares three different follow-up surgeries (SADI-S, RYGB, and OAGB) to see which one leads to the most weight loss, has the fewest complications, and improves nutrition and health problems. The go…

This study tests whether giving people special supplements based on their type of weight-loss surgery can keep their vitamin levels healthy. Many people after surgery get too much or too little of certain vitamins, especially vitamin B6. The study will follow 249 adults for a yea…

This study tests whether specialized bariatric supplements are better than standard multivitamins at preventing vitamin and mineral deficiencies after weight-loss surgery. About 624 adults undergoing sleeve gastrectomy, gastric bypass, or one-anastomosis gastric bypass will take …

This study looks at whether taking a special multivitamin and mineral tablet can help prevent vitamin and mineral shortages in people using GLP-1 weight-loss drugs like Ozempic. These drugs can reduce appetite and food intake, which may lead to nutrient deficiencies. The trial wi…

This study looks at how the size of a tube used during weight-loss surgery affects results. About 100 adults having laparoscopic sleeve gastrectomy will be randomly assigned to a small or large bougie. The main goal is to see which size reduces the risk of stomach leaks and impro…

This study looks at stomach tissue from 100 obese adults undergoing weight-loss surgery to understand how immune cells and blood vessels change. Researchers compare these samples to normal tissue to see if early signs of stomach cancer can be detected. The goal is to learn more a…