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
- NCT07286968Recruiting
Digestion Study After Weight-Loss Surgery
This study looks at how digestion works after weight-loss surgery. Volunteers may be people with obesity or those who had gastric bypass or sleeve gastrectomy at least a year ago. The goal is to learn more about gut function after surgery.
LeuvenAges 18–65 - 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 - NCT07178704Recruiting
Genes and metabolism after weight loss surgery
This study looks at how your genes and metabolism affect changes in body composition after weight loss surgery. It aims to understand why some people lose more weight or gain muscle differently than others.
Galveston, TexasAges 18–65 - 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 - NCT07137117Recruiting
Phone counseling after sleeve gastrectomy for better health
This study tests whether phone counseling can help you eat better, stay active, and take your medications as prescribed after sleeve gastrectomy weight-loss surgery. If you qualify, you will receive regular calls from a counselor to support your recovery.
Adana, YüreğirAges 18–65 - 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 - NCT07093502Recruiting
Predicting outcomes after weight-loss surgery for severe obesity
This study is creating a system to predict how well people do after weight-loss surgery for severe obesity. It focuses on patients getting either a sleeve gastrectomy or a gastric bypass and aims to improve recovery and long-term results.
Changsha, HunanAges 18–50 - 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+ - 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 - 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 - NCT06951893Recruiting
Predicting quality of life after weight-loss surgery
This study looks at whether certain traits before weight-loss surgery can predict how a person's quality of life will change afterward. It aims to find patterns that could help doctors and patients make better decisions about treatment.
Chambéry, SavoieAges 18 years+ - NCT06812832RecruitingPhase 4
Simethicone in bariatric surgery recovery
This trial tests if giving simethicone (a gas-relief medication) as part of a standard recovery plan helps patients feel better after weight-loss surgery. It may reduce bloating and discomfort after surgery.
Tacoma, WashingtonAges 18–89 - NCT06914219Recruiting
Eating disorder screening after weight loss surgery
This study tests a program to screen for and treat eating disorders in people who have had weight loss surgery. It aims to find and help those struggling with eating issues after surgery.
Halifax, Nova ScotiaAges 19 years+ - NCT06868992Recruiting
Study of MASH and cell changes in weight-loss surgery
This study looks at a possible link between MASH (liver inflammation with fat buildup) and tiny cell structures that help liver cells work. Researchers want to understand this better in people having weight-loss surgery, where a small liver sample will be taken.
Lyon, FranceAges 18–99 - 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+ - 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+ - NCT06538948Recruiting
Eating behavior after weight loss surgery
This study measures how people eat and how their gut hormones change after weight loss surgery. It compares different groups to understand differences between men and women.
Männedorf, Canton of ZurichAges 18 years+ - 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+ - 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 - 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+ - 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 - 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+ - NCT06738004Recruiting
Emergency bariatric surgery national audit
This trial is collecting information about people who have emergency complications after weight loss (bariatric) surgery. It aims to understand how these emergencies are managed and how care can be improved.
LutonAges 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.