Clinical trials
Bariatric Surgery (Sleeve Gastrectomy ) clinical trials
Below are recruiting bariatric surgery (sleeve gastrectomy ) clinical trials, each written for real people, not researchers. We’re tracking 110 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07158008Recruiting
Weight loss surgery for people with obesity and heartburn
This study compares two weight-loss surgeries for people who have both obesity and severe heartburn or GERD. One surgery combines part of the stomach removal with an anti-reflux wrap, while the other reroutes the stomach to help with weight loss and reflux.
KrakowAges 18–65 - NCT07286968Recruiting
Digestion Study After Weight-Loss Surgery
This study looks at how digestion works after weight-loss surgery. Volunteers may be people with obesity or those who had gastric bypass or sleeve gastrectomy at least a year ago. The goal is to learn more about gut function after surgery.
LeuvenAges 18–65 - NCT01984762Recruiting
Weight-loss surgery for type 2 diabetes
This study tests whether two weight-loss operations (sleeve gastrectomy or Roux-en-Y gastric bypass) can improve type 2 diabetes. It may help people with higher body weight and diabetes control, but it also requires meeting safety and health criteria.
GothenburgAges 18–60 - NCT02823665RecruitingEarly Phase 1
Compare how bariatric surgery affects blood sugar changes
This early trial studies how blood sugar moves in people after certain weight-loss surgery compared with people without surgery. It may help researchers understand why blood sugar can drop too low and how treatments like atropine affect that process.
San Antonio, TexasAges 18–65 - NCT02390973Recruiting
Bariatric-style surgery vs best diabetes care for long remission
This trial compares surgery plus follow-up care versus the best non-surgical (medical) treatment to help people keep type 2 diabetes in remission for a long time. It may be an option if you have higher body weight and diabetes that’s not well controlled, but safety checks are strict.
Québec, QuebecAges 18–60 - NCT07448896Recruiting
Studying immune cells in stomach tissue after weight loss surgery
This study looks at how certain immune cells (mast cells and macrophages) and small blood vessels change in the stomach tissue of people who have weight loss surgery. It may help researchers better understand how the body responds to surgery and weight loss.
Alexandria, Alexandria GovernorateAges Any age - NCT07637357Recruiting
How anesthesia affects thinking after weight-loss surgery
This study looks at how different types of anesthesia used during sleeve gastrectomy (a weight-loss surgery) may affect your memory and thinking skills after the operation. Researchers want to understand which anesthesia approach is safest for your brain.
Istanbul, SancaktepeAges 18–65 - NCT06474637Recruiting
Powered handle sleeve gastrectomy study
This trial tests a new powered handle tool that doctors use during sleeve gastrectomy surgery to help people lose weight. It is for patients having this surgery for the first time.
KaunasAges 18–65 - NCT06198790Recruiting
Anemia after weight loss surgery
This study looks at how common anemia is after weight loss surgery. It follows people who have sleeve gastrectomy or gastric bypass to see if they develop anemia.
BeijingAges 16–70 - NCT07098780RecruitingPhase 4
Tranexamic Acid to Prevent Bleeding in Weight Loss Surgery
This trial tests whether a medicine called tranexamic acid (TXA) can reduce bleeding during weight loss surgery. If you are having a sleeve gastrectomy or mini-gastric bypass, taking TXA may lower your risk of hemorrhagic events.
Karachi, SindhAges 18–60 - NCT05611697Recruiting
Compare two weight-loss surgeries for severe obesity
This trial compares two types of bariatric (weight-loss) surgery to see which helps people with severe obesity lose weight and stay healthy. You might be eligible if you’re between 20 and 60 and are already being referred for bariatric surgery after prior unsuccessful weight-loss attempts.
Tønsberg, VestfoldAges 20–60 - NCT07289555Recruiting
Customized SADI-S surgery after sleeve gastrectomy
This trial tests a new, customized version of a weight-loss surgery called SADI-S for people who had a sleeve gastrectomy before but need more help losing weight or keeping it off. The goal is to see how safe and effective this tailored surgery is.
Cairo, Greater CairoAges 18–65 - NCT07525232Recruiting
Breathing strategies during weight-loss surgery
This trial tests two different ways to keep your lungs inflated with air during bariatric (weight-loss) surgery. Researchers want to see which method helps you breathe better and recover faster after your procedure.
CairoAges 18 years+ - NCT07568938Recruiting
Anesthesia types and stress response in weight-loss surgery
This study compares two anesthesia methods—inhaled gas (desflurane) versus IV medication (TIVA)—during weight-loss surgery to see how each affects your body's stress response and recovery. The goal is to understand which approach may be safer and more comfortable for patients having bariatric surgery.
AthensAges 18–65 - NCT05576116Enrolling by invitation
Bariatric surgery plus pancreas transplant after kidney transplant
This trial studies whether adding bariatric (weight-loss) surgery and a pancreas transplant can improve health in people with long-term type 2 diabetes who already received a kidney transplant. It may help with blood sugar control and related metabolic health, while also needing careful safety screening for kidney function and blood vessel health.
Toronto, OntarioAges 18–50 - NCT06292936Recruiting
Remi for weight regain after weight loss surgery
This study tests if the medication Remi can help people who have gained back at least 5% of their lowest weight after gastric bypass or sleeve gastrectomy. It is meant for those who are not currently using other weight loss drugs and are otherwise healthy enough to participate.
Chicago, IllinoisAges 18–70 - NCT02937649Recruiting
Testing a bougie tool during sleeve stomach surgery
This trial checks a specific surgical measuring tool (“bougie”) used during sleeve gastrectomy (weight-loss stomach surgery). It may help the surgical team improve how the sleeve is formed while keeping safety in mind.
Boulogne-BillancourtAges 18–70 - NCT07063979Recruiting
Using a nerve-stimulation band to reduce nausea after weight-loss surgery
This trial tests if adding a small nerve-stimulation device (Reliefband) to standard recovery care can help prevent nausea and vomiting in the first 24 hours after robotic sleeve gastrectomy. If you are having this surgery and match the criteria, you may be able to join.
Plainsboro, New JerseyAges 18–75 - NCT05987631Recruiting
Predicting weight loss and health after weight loss surgery
This study looks at why some people lose more weight and improve their health more than others after bariatric surgery. It also has a subgroup that specifically studies people who are insulin resistant (a sign of prediabetes) to see how surgery affects their metabolism.
Gouda, South HollandAges 18–75 - NCT07397572Recruiting
Iron pills and anemia after sleeve gastrectomy
This study tests whether giving iron supplements after sleeve gastrectomy surgery helps prevent or treat anemia. It may be a good fit if you are planning to have this weight-loss surgery and can commit to 6 months of follow-up.
Cairo, Al-Manial CairoAges 18–65 - NCT05207917Enrolling by invitation
Study of how weight-loss surgery changes well-being and social life
This study looks at how bariatric surgery (either sleeve gastrectomy or gastric bypass) affects your mood, daily life, and social experiences. You may be able to join if you’re already scheduled for surgery and can complete questionnaires in Norwegian.
Tønsberg, VestfoldAges 18–80 - NCT05777928Recruiting
Tests satiety changes after bariatric surgery revision
This study looks at how feelings of fullness (satiety) change in people getting bariatric surgery—either a sleeve gastrectomy or a revision procedure. It may help improve how well weight-loss stays on track after surgery.
MilanAges 18–65 - NCT05608772Recruiting
Revision weight-loss surgery after failed sleeve
This study looks at which revision surgery works best after a prior sleeve stomach operation that didn’t last. It tests switching to one of three procedures to help with weight regain, and it excludes more severe acid reflux cases.
Alexandria, Alexandria GovernorateAges 18–60 - NCT06757296Recruiting
Endoscopic revision of sleeve gastrectomy for reflux or poor weight loss
This study tests a new, less invasive way to convert a sleeve gastrectomy into a different type of weight-loss surgery (SASI) in people who have ongoing gastroesophageal reflux or haven't lost enough weight. The goal is to see if this endoscopic procedure can improve reflux and help with weight loss without the need for a traditional surgery.
SingaporeAges 21–65
Hear when a new Bariatric Surgery (Sleeve Gastrectomy ) trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for bariatric surgery (sleeve gastrectomy )?
- Yes. Clin2 currently lists 110 recruiting bariatric surgery (sleeve gastrectomy ) studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a bariatric surgery (sleeve gastrectomy ) trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a bariatric surgery (sleeve gastrectomy ) trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.