Clinical trials
Bariatric Surgery Candidate clinical trials
Below are recruiting bariatric surgery candidate clinical trials, each written for real people, not researchers. We’re tracking 69 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06226194Recruiting
Genes and weight loss after bariatric surgery
This study looks at how your genes might affect how much weight you lose after gastric sleeve or gastric bypass surgery. You may be able to help doctors better predict weight loss results for future patients.
Lleida, LeidaAges 18–65 - 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 - NCT06420479Recruiting
How weight-loss surgery affects heart disease risk
This study looks at how weight-loss surgery (bariatric surgery) affects the chances of developing heart disease or dying early. It may help you if you have obesity but have never had heart problems or cancer before.
StockholmAges 18 years+ - NCT06461247Recruiting
Ready-to-eat meals vs standard care before weight-loss surgery
This trial compares how well patients follow either standard care or ready-to-eat meals before bariatric surgery. It aims to see if providing pre-made meals makes it easier to follow the pre-surgery diet and improve weight loss.
SingaporeAges 21–65 - NCT06597617Recruiting
Exercise Program After Weight Loss Surgery
This study looks at how a personalized exercise program after weight loss surgery might reduce the impact of long-lasting environmental chemicals (called persistent organic pollutants) that are stored in body fat. It may help you lose weight more safely and improve your health after surgery.
NiceAges 18–55 - NCT06617689Recruiting
Education on drinking and oral health after weight loss surgery
This study tests whether a patient education program can help people having weight loss surgery improve their drinking habits and oral hygiene.
TrondheimAges 18 years+ - NCT06689241Recruiting
Comparing blood thinners to prevent clots after weight-loss surgery
This study compares two blood-thinning medications, rivaroxaban (a pill) and enoxaparin (a shot), to prevent dangerous blood clots after weight-loss surgery. If you are scheduled for bariatric surgery, this trial could help determine which approach works better for someone like you.
AlexandriaAges 20–60 - NCT06756789Recruiting
Comparing standard vs. tailored limb lengths in gastric bypass
This study compares two different ways of measuring the length of the small intestine during a type of weight loss surgery called gastric bypass. If you are eligible, you may help determine which approach leads to better weight loss results.
Coimbatore, Tamil NaduAges 18–65 - NCT06781229Recruiting
Gum bacteria in people preparing for weight loss surgery
This trial looks at the bacteria in the mouths of people with a BMI of 30 or higher who are scheduled for weight-loss surgery. The goal is to understand how gum health and body weight are connected.
ToulouseAges 18 years+ - NCT06795386Recruiting
Widespread pain after rapid weight loss in Black and Hispanic adults
This study looks at whether rapid weight loss from bariatric surgery leads to long-term widespread pain in Black and Hispanic adults. The goal is to understand how weight loss affects pain and find better ways to help people manage it.
New York, New YorkAges 18–75 - 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 - NCT06925997RecruitingEarly Phase 1
Bile acids after gastric bypass: metabolic effects study
This trial looks at how bile acids affect metabolism in people who have had gastric bypass surgery. It compares three groups: those who had diabetes before surgery, those without diabetes, and those with type 2 diabetes.
HvidovreAges 18 years+ - NCT07180316Recruiting
Comparing robotic vs. laparoscopic surgery for weight loss revision
This trial compares two types of surgery (robotic and laparoscopic) to see which leads to fewer problems after a second weight-loss operation. It is for people who need to revise their first bariatric surgery to a Roux-en-Y gastric bypass.
LyonAges 18–70 - NCT02310178Recruiting
Long-term follow-up after bariatric surgery at Montpellier
This study follows people who have had weight-loss surgery at Montpellier University Hospital to see how they do over time. It helps doctors understand the long-term benefits and challenges after surgery.
MontpellierAges 15 years+ - 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 - NCT07587437Enrolling by invitation
Magnetic Camera Exam Before Weight-Loss Surgery
This study tests a swallowable magnetic camera to examine your stomach and small intestine before bariatric (weight-loss) surgery. The camera may help doctors plan your surgery and catch any issues beforehand.
Cleveland, OhioAges 18 years+ - NCT07515391Enrolling by invitationPhase 2
Blood Sugar Control After Weight-Loss Surgery
This trial tests whether a diabetes medication called dapagliflozin helps smooth out blood sugar swings after bariatric (weight-loss) surgery. It may help people with type 2 diabetes achieve better control after their surgery.
Kuwait City, DasmanAges 21–70 - NCT06043245Enrolling by invitation
Diabetes remission and weight loss surgery
This trial tests whether a specific type of weight loss surgery can help people with type 2 diabetes stop needing diabetes medication. It is for people with a very high body mass index (BMI over 45) who are currently on diabetes pills or insulin.
L'Hospitalet de Llobregat, BarcelonaAges 18–60 - 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 - 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 - NCT06168162Recruiting
Personalized breathing support during weight-loss surgery
This trial tests whether a personalized breathing setting during surgery can lower the risk of lung complications after weight-loss surgery. If you have a high risk of lung issues, you may be eligible.
Cairo, Cairo GovernorateAges 16 years+ - 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 - 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
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Common questions
- Are there clinical trials for bariatric surgery candidate?
- Yes. Clin2 currently lists 69 recruiting bariatric surgery candidate 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 candidate 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 candidate 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.