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
- NCT06289413Recruiting
Nervous system changes after weight-loss surgery
This study looks at how bariatric surgery affects the part of your nervous system that controls things like heart rate and blood pressure (autonomic function). It may help patients preparing for or recovering from weight-loss surgery.
Overland Park, KansasAges 18–85 - NCT06278285Recruiting
GLP-1 drug effect on fat tissue before bariatric surgery
This study looks at how taking a GLP-1 medicine (like Ozempic or Wegovy) affects your fat tissue before bariatric surgery. It compares people who have taken a GLP-1 for at least 3 months to those who never have.
Nice, Alpes-maritimesAges 18 years+ - NCT07818707RecruitingPhase 4
How the body handles carbs after gastric bypass and low blood sugar
This study looks at how the body handles carbohydrates after eating in people who have had gastric bypass surgery, with or without post-surgery hypoglycemia (low blood sugar). The goal is to understand why some people get low blood sugar after meals and how to better manage it.
Birmingham, AlabamaAges 18–70 - NCT04614961Recruiting
Obesity clinic patient database study
This study collects information about people who visit an obesity clinic. It aims to better understand patients’ health and care needs, which may improve future treatment.
LeuvenAges 18 years+ - NCT04893954Recruiting
Study of spine changes after weight loss from bariatric surgery
This study looks at how rapid weight loss after bariatric surgery may affect your spine over the following year or more. It may help doctors better predict who gets spine-related problems or improvements after surgery.
ParisAges 18 years+ - NCT07118540Recruiting
Weight-loss surgery follow-up after 5 years
This trial is checking how well patients are cared for after weight-loss surgery, focusing on those who stopped coming to check-ups 5 years after their operation. If you were part of the OBESEPI study and haven't been seen recently, this research wants to understand your experience.
Nancy, LorraineAges 18–65 - 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 - NCT06547515Recruiting
Bone and muscle health after sleeve gastrectomy
This study looks at how sleeve gastrectomy surgery affects bone and muscle health in men and women at different life stages (before and after menopause). It compares people having the surgery with those who qualify but don't have it.
QuébecAges 18 years+ - NCT06169033Recruiting
Can belly fat scans predict weight-loss surgery success?
This study looks at how fat around your belly and inside your abdomen, seen on a CT scan, can predict how well bariatric (weight-loss) surgery will work for people with type 2 diabetes.
BeijingAges 16–70 - 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 - NCT07633639Recruiting
GLP-1 Medicine After Weight-Loss Surgery in Chinese Patients
This trial tests whether adding a GLP-1 medication (a type of diabetes and weight-loss drug) after weight-loss surgery helps patients with obesity and related health conditions like diabetes. Researchers want to see if combining surgery with this medicine works better than surgery alone.
BeijingAges 18–60 - NCT06721507RecruitingPhase 4
Tirzepatide after weight loss surgery
This study tests whether giving tirzepatide (a medicine that helps with weight and blood sugar) right after weight loss surgery can improve results. It is for people who are already scheduled for sleeve gastrectomy or gastric bypass at UK HealthCare.
Lexington, KentuckyAges 18 years+ - 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 - NCT07782281Recruiting
Early discharge with home care after weight-loss surgery
This study compares early discharge from the hospital with follow-up care at home versus the usual hospital stay after bariatric (weight-loss) surgery. It aims to see if going home early with home care is safe and reduces costs.
Sabadell, BarcelonaAges 18–65 - NCT04634591Recruiting
Weight-loss surgery study for people with severe obesity
This trial studies bariatric (weight-loss) surgery and how well it helps people reach and keep a healthier weight. You may qualify if you have severe obesity and have not been able to maintain weight loss with other attempts, and if you can safely follow the study plan.
Bialystok, Podlaskie VoivodeshipAges 18 years+ - NCT04136717Recruiting
Test if FreeO2 helps keep oxygen levels in range
This study looks at whether adding FreeO2 can help keep your oxygen saturation (a measure of oxygen in the blood) within a target range while you use breathing support like NIV or CPAP. It may help reduce time spent either too low or too high in oxygen levels.
Québec, QuebecAges 18 years+ - NCT07839624Recruiting
Using a smartphone app to support patients before and after weight-loss surgery
This study tests a mobile app called Get-Ready that helps you track your health before and after weight-loss surgery. It aims to support you in managing your weight and recovery.
Rome, RMAges 18–65 - NCT05966727Recruiting
Cholestyramine to lower stored pollutants in obese women
This study tests whether cholestyramine can lower blood levels of certain stored environmental pollutants (“POPs”) in women preparing for weight-loss surgery. If it works, it may help reduce pollutant levels that can build up in the body over time.
Nice, Alpes-MritimesAges 18–45 - NCT07011628Recruiting
Transition to outpatient weight-loss surgery trial
This study tests if sending you home the same day after weight-loss surgery is safe and effective. You must have a BMI of 60 or less and be getting your first sleeve gastrectomy or gastric bypass at Vanderbilt University Medical Center.
Nashville, TennesseeAges 25–55 - NCT07268508Recruiting
Study of a gut-healthy diet after weight-loss surgery
This study tests how a special diet after weight-loss surgery affects gut bacteria, eating habits, and sense of taste and smell. Researchers want to see if this diet can improve long-term results.
LyonAges 25–65 - NCT07131605Recruiting
How weight-loss surgery affects heart health and inflammation
This study looks at how weight-loss surgery affects heart health by checking markers of inflammation in the blood and how blood vessels work. It may help understand why surgery lowers heart risk for people with obesity.
Cotignola, RavennaAges 18 years+ - NCT07324447Recruiting
Supervised exercise after bariatric surgery to protect muscles and bones
This trial is testing whether a supervised exercise program after bariatric surgery helps protect your muscle mass and bone density. It is for people who are eligible for gastric bypass or sleeve surgery and can commit to an exercise routine near Seville.
Seville, SevillaAges 18 years+ - NCT04581447RecruitingPhase 3
Metformin to help prevent diabetes returning after weight surgery
This Phase 3 study tests whether adding metformin after gastric bypass or sleeve surgery can help you stay free of diabetes for longer. It compares metformin plus standard care versus standard care alone.
AmiensAges 18–70 - NCT07797374Recruiting
Nausea, vomiting, and pain after weight-loss surgery
This study looks at how patients feel after weight-loss surgery, specifically nausea, vomiting, and pain. It uses national registry data to understand these symptoms better, which may help improve care for future patients.
SundsvallAges 18 years+
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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.