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 152 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT02857179Recruiting
Study of Bariatric Surgery
This study is looking at people who have already had bariatric (weight-loss) surgery. If you’ve had that surgery and are within the age range, you may be eligible to participate.
LyonAges 16–80 - NCT04945304Recruiting
9-Step magnetic revisional weight-loss surgery
This trial studies a specific 9-step approach using magnetic technology for people having revisional bariatric (weight-loss) surgery. It may help improve how safely and effectively surgery is done for people who qualify.
Maracaibo, ZuliaAges 18–65 - NCT04583150Recruiting
Study of fertility and ovarian reserve after weight-loss surgery
This study looks at how ovarian reserve (a fertility-related marker) changes in women after bariatric (weight-loss) surgery versus women with obesity who are not planning surgery. It may help doctors better understand fertility timing and risks around weight-loss treatment.
AngersAges 18–37 - NCT06275061Recruiting
Obesity and metabolic surgery database study
This trial is building a database of people with obesity who have had or are planning to have weight loss surgery (metabolic or bariatric surgery). It helps doctors learn more about long-term results and safety.
Guangzhou, GuangdongAges Any age - 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 - NCT06464822Recruiting
Effects of weight-loss surgery on urinary symptoms
This study looks at whether weight-loss surgery can improve urinary symptoms like needing to pee often or suddenly. It is for people with severe obesity who are already being seen at a specific clinic for bariatric surgery.
Hong KongAges 18 years+ - NCT06599047Recruiting
Fat tissue study in type 2 diabetes surgery patients
This study looks at fat tissue in people with type 2 diabetes who are having abdominal surgery. It aims to understand how fat differs in people with diabetes compared to those without, which may help improve future treatments.
Montreal, QuebecAges 18–65 - NCT06661174Recruiting
Weight loss surgery study for diabetes with kidney problems
This study tests if bariatric surgery can help people whose diabetes is quickly damaging their kidneys. It may slow down kidney disease and improve health.
Beijing, Beijing MunicipalityAges 18–65 - NCT06680492Recruiting
Nutrition and muscle health after weight loss surgery
This study looks at how nutrition affects muscle strength and function in people who have bariatric surgery. It may help you understand how to keep your muscles healthy after surgery.
Montreal, QuebecAges 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+ - NCT05859022Recruiting
Bariatric treatment methods compared for diabetes and metabolism
This trial compares a less invasive heart/artery-based bariatric treatment (bariatric arterial embolization) with standard weight-loss surgery to see how they affect metabolism and type 2 diabetes. You might be considered if you have obesity with type 2 diabetes and have not had prior bariatric surgery.
LisbonAges 18–75 - NCT07569705Recruiting
Nerve Stimulation to Help Breathing After Weight-Loss Surgery
This trial tests whether electrical nerve stimulation (a non-invasive, pain-relieving technique) can help improve breathing problems that sometimes occur after weight-loss surgery. The study measures how well your diaphragm—the muscle that helps you breathe—works after the procedure.
CairoAges 20–60 - NCT06738875Recruiting
Cuff pressure changes in weight loss surgery
This study looks at how the pressure in the breathing tube changes during weight loss surgery. It aims to help make the procedure safer and more comfortable.
Kayapınar, Di̇yarbakirAges 18–70 - NCT07539623RecruitingPhase 3
Pain relief with suzetrigine after heart or weight-loss surgery
This study tests whether suzetrigine, a new pain medication, can reduce the need for opioids (strong painkillers) after cardiac or bariatric surgery. The goal is to help patients manage pain with fewer opioid-related side effects.
New York, New YorkAges 18–85 - 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+ - 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 - NCT07457034Recruiting
Digital follow-up after weight loss surgery
This study tests whether a digital follow-up system with nursing education can help people who have had weight loss surgery (bariatric surgery) stay on track and improve their recovery. It is designed for adults who are cleared for exercise and comfortable using technology.
Istanbul, ÜSKÜDARAges 18–65 - NCT07453186Recruiting
Ultrasound scans before weight loss surgery
This trial tests if two types of ultrasound scans can help see the gallbladder and liver better in people scheduled for weight loss surgery. It may lead to safer procedures.
EsbjergAges 18 years+ - NCT05166954Recruiting
Bariatric surgery and heart function in people with high blood pressure
This study looks at whether bariatric (weight-loss) surgery improves heart function in people who have high blood pressure. You may be able to join if you’re already a bariatric surgery patient at the study hospital and meet the health and medication criteria.
Beijing, Beijing MunicipalityAges 17–70 - NCT06192693RecruitingPhase 3
Fecal transplant to improve diabetes after weight loss surgery
This trial tests whether transferring healthy stool bacteria from a lean donor can help improve blood sugar control in people with type 2 diabetes who still have high blood sugar 1-5 years after weight loss surgery.
ParisAges 18–65 - NCT06850493Recruiting
Ketogenic Diet Before Weight-Loss Surgery
This study tests whether following a ketogenic diet (a low-carb, high-fat eating plan) before weight loss surgery can improve your health and recovery. You will be asked to follow the diet for a few weeks before your scheduled Roux-en-Y gastric bypass.
Veldhoven, North BrabantAges 18–65 - NCT06874309Recruiting
Brain stimulation before weight-loss surgery for better eating control
This trial tests if gentle electrical brain stimulation (called tDCS) before weight-loss surgery can help you gain better control over your eating habits. It's designed for people with severe obesity who struggle with overeating.
Brno, CzechiaAges 18–65 - NCT04008563Recruiting
Weight-loss surgery to protect fertility in early womb cancer
This study tests whether bariatric (weight-loss) surgery can help treat certain early, low-grade womb changes while preserving fertility. It’s mainly for people with a higher BMI who want to have children and have an early stage diagnosis confirmed by scans.
Toronto, OntarioAges 18–41 - NCT07289958Recruiting
Breathing muscle training after weight loss surgery
This study tests whether breathing exercises can help people recovering from weight loss (bariatric) surgery. It may improve your breathing and recovery after the procedure.
Quito, PichinchaAges 18–60
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Common questions
- Are there clinical trials for bariatric surgery patients?
- Yes. Clin2 currently lists 152 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.