Clinical trials
Bariatric Surgery Patients clinical trials
Below are recruiting bariatric surgery patients clinical trials, each written for real people, not researchers. We’re tracking 157 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05215886Enrolling by invitation
Bariatric surgery and memory problems in people with obesity
This study looks at how bariatric (weight-loss) surgery may affect memory and thinking in people with obesity who already have memory decline or dementia. It may help doctors understand which patients benefit most and what changes to expect.
Sacramento, CaliforniaAges 18–75 - NCT06738004Recruiting
Emergency bariatric surgery national audit
This trial is collecting information about people who have emergency complications after weight loss (bariatric) surgery. It aims to understand how these emergencies are managed and how care can be improved.
LutonAges 18 years+ - NCT03472157Recruiting
Bariatric surgery for severe NASH with advanced liver scarring
This study tests whether bariatric surgery (either sleeve gastrectomy or Roux-en-Y gastric bypass) improves severe nonalcoholic steatohepatitis (NASH) with advanced liver scarring in people who are obese. You may also need liver biopsies to confirm your liver disease before and after treatment.
LilleAges 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 - NCT06915558Recruiting
Reducing inflammation in weight loss surgery
This trial tests a method to control inflammation during bariatric surgery. It may help patients recover better and have fewer complications.
Barcelona, BarcelonaAges 18–65 - 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 - NCT07430111Recruiting
Comparing two breathing methods during weight loss surgery
This study tests two different ways of using a ventilator during bariatric surgery to see which one works better for people with obesity. It may help your lungs work better during and after surgery.
AnkaraAges 18–65 - NCT06391255Enrolling by invitation
Normal stomach emptying test values after weight-loss surgery
This study measures how quickly food leaves the stomach in people who had weight-loss surgery (gastric bypass or sleeve gastrectomy) at least 2 years ago. The goal is to create normal reference values for this test, which may help doctors better understand digestive issues after surgery.
Arnhem, GelderlandAges 18–65 - NCT05838300Recruiting
Compare special air flow methods during gastric bypass surgery
This trial compares two ways of delivering and removing carbon dioxide gas during minimally invasive gastric bypass and related hiatal hernia repair surgery. It looks at whether one method is safer or more comfortable by changing how the gas is warmed, humidified, and controlled.
Houston, TexasAges 18–65 - NCT07717333Recruiting
Sarcopenia signs after weight loss surgery
This study looks at muscle changes after bariatric (weight loss) surgery. It may help you understand how your muscles are affected and what you can do to stay strong.
Istanbul, KÜÇÜKÇEKMECEAges 18–65 - NCT03517072Recruiting
Study of long-term success after bariatric surgery
This study looks at what helps people do well in the long run after bariatric (weight-loss) surgery. You may be able to join if you had the surgery about five years ago and are willing to participate.
ArrasAges Any age - NCT04366999Recruiting
Bariatric surgery for fatty liver disease in people with obesity
This trial looks at whether weight-loss (bariatric) surgery helps people with fatty liver disease, including “NASH,” and related liver scarring. If you have obesity and a confirmed liver fat diagnosis (and for NASH, biopsy-proven NASH with some fibrosis), the study may follow your outcomes after surgery.
Beijing, Beijing MunicipalityAges 16–65 - NCT04766801Recruiting
Survey for teens seeking weight-loss surgery
This study is a health and survey project for teenagers who are considering bariatric (weight-loss) surgery. It aims to better understand the teen experience and support needs before surgery.
Angers, Maine Et LoireAges 14–20 - 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 - NCT07423780Recruiting
Exercise program for recovery after weight-loss surgery
This trial studies whether a supervised exercise program helps people who have had weight-loss surgery (sleeve gastrectomy or gastric bypass) improve their metabolic health. It is for adults aged 18-60 who have been cleared for rehab and may have related conditions like high blood pressure or cholesterol problems.
Santiago, Santiago MetropolitanAges 18–60 - NCT07335731Recruiting
Safety and effectiveness of a new robot for weight-loss surgery
This trial tests a new robot-assisted device for weight-loss surgery in people with obesity. It aims to see if the device is safe and works well for metabolic conditions.
BeijingAges 18–65 - NCT07073846RecruitingPhase 4
Lidocaine and dexmedetomidine for pain after weight-loss surgery
This study tests whether adding two medicines (lidocaine and dexmedetomidine) to your anesthesia during weight-loss surgery can reduce pain, swelling, and stress on the body. It might help you have a smoother recovery.
Mexico City, Mexico CityAges 18–60 - NCT06413264Recruiting
Ultrasound-Guided Gas Insertion for Laparoscopic Surgery in Severe Obesity
This study tests if using ultrasound to guide the insertion of gas (pneumoperitoneum) during laparoscopic surgery helps people with severe obesity. It aims to make the procedure safer and more precise.
Bhubaneswar, OdishaAges 18–65 - NCT05725967Enrolling by invitation
Endoscopic and bariatric procedures for obesity
This study looks at people who are having obesity-related procedures, including options done with a scope (endoscopic) and revision after prior bariatric surgery. It may help doctors understand outcomes and improve care for people undergoing these treatments.
Boston, MassachusettsAges 18–80 - NCT06426290Recruiting
Predicting success after weight-loss surgery
This study looks at whether a psychological test can help predict who will do well after weight-loss surgery. Researchers are reviewing past test results and surgery outcomes to find patterns.
MoulinsAges 18 years+ - NCT05005039Recruiting
Study how bariatric surgery may affect bone strength
This trial studies whether bariatric surgery (bypass or sleeve) changes bone loss in postmenopausal women with obesity. It may help doctors understand who is at higher risk for weaker bones and how to prevent it.
LilleAges 45–70 - NCT05934409Recruiting
Measuring body-fat storage after bariatric surgery
This study looks at how body fat is stored and how that may relate to early improvements in diabetes and heart/liver health after bariatric surgery. It may help researchers understand why some people recover faster and which body changes matter.
Sherbrooke, QuebecAges 18–65 - 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 - 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
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Common questions
- Are there clinical trials for bariatric surgery patients?
- Yes. Clin2 currently lists 157 recruiting bariatric surgery patients 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 patients 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 patients 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.