General Committee Of Teaching Hospitals And Institutes, Egypt

This study looks at people who had a sleeve gastrectomy but regained weight. It compares three different follow-up surgeries to see which one helps them lose the most weight with the fewest side effects. The goal is to find the best option for long-term weight control and better …

This study compares two weight loss surgeries for people who did not lose enough weight or regained weight after an initial sleeve gastrectomy. About 240 adults will be randomly assigned to receive either a standard gastric bypass or a bypass with a ring. Researchers will track w…

This study tests whether special supplements designed for different types of weight-loss surgery can help patients maintain healthy vitamin levels and avoid getting too much vitamin B6. About 249 adults who are having sleeve gastrectomy or gastric bypass will take either standard…

This study looks at whether taking a special multivitamin and mineral tablet can help prevent vitamin and mineral deficiencies in people using GLP-1 drugs (like Ozempic or Saxenda) for weight loss. These drugs can reduce appetite and food intake, which may lead to low levels of i…

This study compares two different tube sizes used during laparoscopic sleeve gastrectomy, a surgery that makes the stomach smaller to help with weight loss. About 100 adults with obesity will be randomly assigned to receive either a small (36-Fr) or extra-large (over 40-Fr) bougi…

This study looks at whether special supplements made for people who had weight-loss surgery work better than standard multivitamins at preventing vitamin and mineral deficiencies. About 624 adults who are scheduled for sleeve gastrectomy, gastric bypass, or one-anastomosis bypass…

This study looks at stomach tissue from 100 obese adults undergoing weight-loss surgery and compares it to normal tissue. Researchers want to see if certain immune cells and blood vessel changes in the stomach are early signs of cancer risk. No treatment is given—this is an obser…