Endoscopic bariatric therapies such as intragastric balloons, space occupying EBTs, endoscopic sleeve gastroplasty (ESG), primary obesity surgery endolumenal (POSE), and small bowel interventions including gastrointestinal bypass sleeves, etc. are recommended alone or in conjunction with other weight loss treatment modules for patients who cannot or do not want to undergo conventional bariatric surgery or other therapies for obesity (with BMI 30 kg/m2) or BMI >27 with comorbidities.

This research is being done in order to find out if endoscopic bariatric therapies work as well as, or better or worse than, other currently available treatment modules to achieve weight loss.

Laboratory data, patient characteristics, imaging, histology will be collected. In certain patients - after specific consent extra blood may be collected for research purposes.