Clinical trials
Obese Patients With Bariatric Surgery clinical trials
Below are recruiting obese patients with bariatric surgery clinical trials, each written for real people, not researchers. We’re tracking 153 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05950698Recruiting
Study of obesity and bariatric surgery with mental and social factors
This study looks at how personal mental health and life circumstances relate to outcomes after bariatric (weight-loss) surgery. It may help the team understand what supports improve recovery and health after surgery.
Rio de Janeiro, Rio de Janeiro, BrazilAges 18–60 - 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 - NCT07326865Recruiting
Sugar metabolism study in obese patients with and without MASLD
This study looks at how the liver responds to sugar given through a vein in obese patients with and without a fatty liver condition called MASLD. It may help doctors understand why some people develop liver problems from sugar and fat.
Amsterdam, North HollandAges 35–65 - NCT03535142Recruiting
Fatty liver in people considering bariatric surgery
This study looks at how fatty liver disease may predict future liver health in people with severe weight gain. It compares people who are planning bariatric (weight-loss) surgery with similar people who are not, to better understand who may be at higher risk.
EsbjergAges 18 years+ - NCT05120492Recruiting
Program for severe knee arthritis and extreme weight
This feasibility study tests a practical approach to help people with very severe knee arthritis and very high body weight. It aims to find an effective and safe way to manage both conditions together in real-world care.
Halifax, Nova ScotiaAges 18–65 - NCT05816798RecruitingPhase 2/Phase 3
Laser treatment to reduce chronic knee pain before weight-surgery
This trial tests whether photobiomodulation (a type of laser/light therapy) can reduce chronic pain in both knees for people preparing for bariatric (weight-loss) surgery. If you have knee pain that limits daily life, the treatment may help you feel better while you’re in the pre-surgery rehabilitation period.
Goiânia, GoiásAges 18–70 - NCT06858761Recruiting
Robot-assisted weight loss surgery: cost and results study
This study looks at whether using a robot during weight loss surgery is worth the cost. It compares outcomes for people having their first bariatric surgery or a repeat surgery for complications.
BordeauxAges 18–70 - NCT06425016Recruiting
Robot-assisted vs. traditional sleeve gastrectomy
This study compares two types of weight-loss surgery: one done with the help of a robot and the other done by hand (laparoscopic). Both are types of sleeve gastrectomy, where the stomach is reduced in size. If you qualify for sleeve gastrectomy, this trial may help doctors learn which method works better.
Cleveland, OhioAges 18–70 - NCT06515691Recruiting
Nerve block for pain after weight loss surgery
This study tests a nerve block (an injection near the nerves) to see if it helps reduce pain after laparoscopic sleeve gastrectomy. The block is called a modified thoracoabdominal nerve plane block, and it may lead to better pain control and recovery.
Istanbul, BagcilarAges 18–65 - NCT06806787Recruiting
Can Copeptin and Thirst Predict Weight-Loss Surgery Success?
This study looks at whether levels of a blood marker called copeptin and your sense of thirst can help predict how well bariatric (weight-loss) surgery works. If you are eligible, you will have blood tests and answer questions about thirst before and after surgery.
Bologna, BolognaAges 18–65 - NCT07119437Recruiting
Low-impact laparoscopy for weight loss surgery
This trial compares a newer, less invasive laparoscopic technique to the standard method for sleeve gastrectomy, a type of weight-loss surgery. It aims to see if the low-impact approach reduces pain and speeds recovery.
Rome, ItalyAges 18–65 - NCT07666074Recruiting
AI for predicting difficult airway in weight-loss surgery
This trial uses artificial intelligence (AI) to predict whether it will be difficult to place a breathing tube during weight-loss surgery. The goal is to help doctors plan safer anesthesia for patients with a high BMI.
Elâzığ, ElâzığAges 18–65 - NCT03407833Enrolling by invitation
Study changes in the body after weight, gut, or liver treatment
This study looks at how the body’s insulin-sensitivity (how well your body uses sugar/insulin) and organ function change after certain medical procedures. It may help researchers understand why some people improve after surgery or liver transplant and guide future care.
Nashville, TennesseeAges 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 - NCT04839614Recruiting
Weight-loss surgery plus uterus surgery for certain uterine lining conditions
This trial tests doing weight-loss surgery at the same time as laparoscopic uterus (womb) surgery for people with certain early uterine lining conditions. It may help lower risk from severe obesity while treating the uterine condition.
Boston, MassachusettsAges 18 years+ - NCT04494048Recruiting
Registry for people considering endoscopic weight-loss procedures
This study keeps a record of people who are planning or recently had an endoscopic (camera-based) weight-loss procedure. The goal is to learn how these procedures work in real life and help doctors improve care.
New York, New YorkAges 18–89 - NCT05602805Recruiting
Study using a health data bank for weight management
This study builds a data bank to help track how people manage overweight or obesity at the hospital. It may help improve care for future patients by learning what treatments and outcomes work best.
Québec, QuebecAges 18 years+ - NCT07565051Recruiting
Predicting weight loss after gastric bypass surgery
This study looks at whether measuring muscle mass before gastric bypass surgery can predict how much weight you'll lose afterward. Understanding this connection may help doctors better prepare patients for surgery and set realistic goals.
Geneva, Canton of GenevaAges Any age - NCT05408728Enrolling by invitation
Check how sugar absorption predicts weight loss after endoscopy
This study looks at whether a person’s “sugar absorption” pattern can help predict how much weight they will lose. It involves an endoscopy (a look inside the upper digestive tract) as part of routine care, and then matching the results to future weight change.
Jacksonville, FloridaAges 18 years+ - NCT04748770Recruiting
Kidney Transplant Access for Obese Dialysis Patients
This study looks at whether obese patients who are starting dialysis can safely receive kidney transplants. Researchers want to understand how weight affects transplant success and access to this life-changing treatment.
AmiensAges 18 years+ - NCT03008525Recruiting
Testing vitamin D levels in body fat tissue during surgery
This study measures vitamin D (and related forms) in fat tissue samples taken during surgery. It compares people with obesity to people without obesity to understand how vitamin D is handled in fat.
MarseilleAges 18–65 - NCT06452303Recruiting
Bariatric surgery patient registry study
This study follows people who have weight-loss surgery (bariatric surgery) to see how it affects their health. It may be an option if you have obesity or type 2 diabetes and meet certain weight and health criteria.
Beijing, Beijing MunicipalityAges 16–65 - NCT06549062Recruiting
Paracetamol dosing in obese vs non-obese surgery patients
This trial studies how the body processes intravenous paracetamol (Tylenol) in people with and without obesity. It aims to find the right dose for safety and effectiveness during laparoscopic surgery.
Ghent, Oost-VlaanderenAges 18–70 - 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
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Common questions
- Are there clinical trials for obese patients with bariatric surgery?
- Yes. Clin2 currently lists 153 recruiting obese patients with bariatric surgery 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 obese patients with bariatric surgery 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 obese patients with bariatric surgery 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.