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 159 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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 - 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 - NCT05695040Recruiting
Diet workshop after bariatric surgery
This study tests whether a structured diet workshop, held about 15 days after bariatric (weight-loss) surgery, helps patients with their post-surgery eating plans. You may be invited to join the workshop if you are scheduled for surgery and can attend as required.
Clermont-FerrandAges 18 years+ - 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 - NCT07064200Recruiting
Timing of TAP blocks for abdominal surgery
This study compares two different ways to give a numbing medicine (TAP block) before abdominal surgery to see which one works better for pain control. If you are scheduled for elective abdominal surgery, joining may help doctors find the best way to manage your pain.
New York, New YorkAges 18–65 - 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 - NCT06950112Recruiting
Comparing two breathing methods for obese patients during weight-loss surgery
This trial tests a personalized way of setting the breathing machine during weight-loss surgery to reduce lung stress. It compares a tailored approach with standard care in people with obesity.
Tanta, El GharbiaAges 18–60 - 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+ - 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 - NCT07104825Recruiting
Nerve block for pain after weight loss surgery
This trial tests if a nerve block can help control pain after gastric bypass or sleeve gastrectomy. The goal is to reduce the need for strong pain medicines and improve recovery.
Evanston, IllinoisAges 18–90 - 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 - NCT06987903Recruiting
Exercise and breathing program before weight-loss surgery
This trial tests if a program of physical exercise and breathing exercises before bariatric surgery helps patients recover better. It is for people having surgery at the Álvaro Cunqueiro Hospital in Vigo.
Vigo, PontevedraAges 18–69 - NCT03455868Recruiting
Bone health check after bariatric surgery in people with diabetes
This study looks at how bariatric (weight-loss) surgery affects bone health in adults with type 2 diabetes. It may help doctors understand who needs extra bone protection after surgery.
Montreal, QuebecAges 18–60 - NCT03490630Recruiting
Survey study after bariatric weight-loss surgery
This study asks adults to complete patient-reported surveys after elective bariatric (weight-loss) surgery. It may help doctors better understand how patients experience recovery and outcomes.
BernAges 18 years+ - 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 - 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 - NCT04590690Recruiting
Gut microbes and sex risks for kidney stones after weight surgery
This study looks at how gut bacteria (microbes), along with sex, may affect the chance of getting kidney stones after bariatric (weight-loss) surgery. It may help doctors understand who is at higher risk so prevention can be improved.
Chicago, IllinoisAges 18–130 - 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 - 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 - NCT05235945Recruiting
Exercise program for people waiting for weight-loss surgery
This trial studies whether an exercise program can help people prepare for bariatric (weight-loss) surgery. It aims to see if exercise is safe and beneficial while you’re waiting for your surgery date.
LondonAges 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 - 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 - 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 - 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
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Common questions
- Are there clinical trials for bariatric surgery patients?
- Yes. Clin2 currently lists 159 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.