Clinical trials
Bariatric Surgery (Sleeve Gastrectomy ) clinical trials
Below are recruiting bariatric surgery (sleeve gastrectomy ) clinical trials, each written for real people, not researchers. We’re tracking 110 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03440177Recruiting
Study medicine absorption after weight-loss stomach surgery
This study looks at how your blood pressure medicine (ramipril) is absorbed and handled by the body after gastric bypass or sleeve gastrectomy. It may help improve how these medicines are used after weight-loss surgery.
TrondheimAges 18–70 - NCT03448783Recruiting
Apixaban levels around bariatric surgery
This study checks how the blood-thinner apixaban behaves in your body before and after gastric bypass or sleeve surgery. Results may help doctors choose safer dosing around bariatric surgery.
TrondheimAges 18–70 - NCT03449472Recruiting
Study of quetiapine levels after weight-loss stomach surgery
This trial studies how quetiapine (a mental health medicine) is processed in the body after gastric bypass or sleeve gastrectomy. It may help doctors better adjust dosing after weight-loss surgery.
TrondheimAges 18–70 - NCT03449485Recruiting
Blood medicine study around weight-loss stomach surgery
This study looks at how a medicine (chlorprothixene) moves through the body before and after weight-loss surgery like gastric bypass or sleeve gastrectomy. It may help doctors understand the best timing and dosing of this medicine for people having these operations.
TrondheimAges 18–70 - NCT03460327Recruiting
Study of candesartan blood levels around weight-loss surgery
This trial measures how the blood pressure medicine candesartan is absorbed in your body before and after gastric bypass or sleeve gastrectomy. It may help doctors predict the right dosing for people taking this medication after bariatric surgery.
TrondheimAges 18–70 - NCT03460366Recruiting
Bariatric surgery and how enalapril moves in the body
This study looks at how the blood-pressure medicine enalapril is absorbed and processed after gastric bypass or sleeve gastrectomy. It may help doctors better predict dosing and effects after weight-loss surgery.
TrondheimAges 18–70 - NCT03460314Recruiting
Testing buprenorphine absorption around stomach weight-loss surgery
This study checks how well buprenorphine (a medicine used for opioid dependence and pain in some cases) works in the body after gastric bypass or sleeve gastrectomy. It may help doctors better plan dosing and timing around weight-loss surgery.
TrondheimAges 18–70 - NCT03460379Recruiting
Bariatric surgery and how escitalopram is absorbed
This study looks at how a common antidepressant, escitalopram, moves through your body before and after gastric bypass or sleeve gastrectomy. Results may help doctors better choose dosing for people taking this medication around the time of weight-loss surgery.
TrondheimAges 18–70 - NCT03476577Recruiting
Bariatric surgery study measuring how ibuprofen is absorbed
This study looks at how ibuprofen is absorbed by the body around the time of bariatric (weight-loss) surgery. It may help doctors understand how to use pain medicine safely and effectively after surgery.
TrondheimAges 18–70 - NCT03476551Recruiting
Gastric bypass or sleeve check for a water-pill response
This study looks at how well hydrochlorothiazide (a “water pill”) works in the body after gastric bypass or sleeve surgery. It may help doctors better predict dosing and effects after these weight-loss operations.
TrondheimAges 18–70 - NCT03476525Recruiting
Study of fluoxetine after bariatric surgery
This study looks at how the antidepressant fluoxetine is absorbed and behaves in the body before and after gastric bypass or sleeve surgery. It may help doctors better predict how well fluoxetine works after weight-loss surgery.
TrondheimAges 18–70 - NCT03476538Recruiting
Study gabapentin levels after stomach bypass or sleeve surgery
This trial measures how the medicine gabapentin moves through your body after gastric bypass or sleeve gastrectomy. It may help doctors better choose doses for people taking gabapentin after weight-loss surgery.
TrondheimAges 18–70 - NCT03476603Recruiting
Bariatric surgery and how irbesartan moves in your body
This study looks at how a blood-pressure medicine (irbesartan) is absorbed and processed in the body before and after bariatric surgery. It may help doctors understand how dosing might need to change after stomach surgery.
TrondheimAges 18–70 - NCT03497143Recruiting
Gastric bypass or sleeve surgery and lamotrigine drug levels
This study measures how well lamotrigine (a seizure/mood-stabilizing medicine) is absorbed after planned weight-loss surgery. It may help doctors understand whether medicine doses need adjustment after bypass or sleeve surgery.
TrondheimAges 18–70 - NCT03497156Recruiting
Tests drug absorption after stomach bypass or sleeve surgery
This study checks how a blood-pressure medicine called lercanidipine is absorbed by the body after gastric bypass or sleeve gastrectomy. You may be able to join if you are preparing for one of these surgeries in Central Norway.
TrondheimAges 18–70 - NCT03519893Recruiting
Study of blood pressure drug handling after weight-loss surgery
This study looks at how losartan (a blood pressure medicine) moves through the body after gastric bypass or sleeve gastrectomy. It may help doctors better choose and dose blood pressure treatment after weight-loss surgery.
TrondheimAges 18–70 - NCT03519906Recruiting
Bariatric surgery study measuring how metoprolol is absorbed
This study looks at how metoprolol (a blood-pressure medicine) gets absorbed in the body before and after bariatric weight-loss surgery. If you’re preparing for gastric bypass or sleeve surgery, this may help researchers understand dosing and medicine absorption changes after surgery.
TrondheimAges 18–70 - NCT03532477Recruiting
Venlafaxine medicine study around weight-loss stomach surgery
This study looks at how the antidepressant venlafaxine is absorbed in the body when people undergo gastric bypass or sleeve gastrectomy. It may help doctors understand whether dosing should change after surgery.
TrondheimAges 18–70 - NCT03535376Recruiting
Studies how valsartan works after bariatric surgery
This study looks at how the blood-pressure medicine valsartan is absorbed and processed in your body after gastric bypass or sleeve surgery. It may help doctors choose safer, more effective dosing after weight-loss surgery.
TrondheimAges 18–70 - NCT03538457Recruiting
Gastric bypass or sleeve surgery and paracetamol absorption
This study looks at how your body absorbs paracetamol (acetaminophen) after planned weight-loss surgery. It may help doctors better guide pain- and fever-medication dosing after gastric bypass or sleeve gastrectomy.
TrondheimAges 18–70 - 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+ - NCT04901429Recruiting
Check truncal nerve procedure during weight-loss surgery
This study looks at a nerve-related surgical step (“truncal vagotomy”) during revision weight-loss surgery that changes a sleeve stomach to a gastric bypass. It may help improve outcomes for people who need this type of second surgery.
Dallas, TexasAges 18 years+ - NCT04922333RecruitingPhase 3
Bisphosphonate to prevent bone loss after sleeve weight-loss surgery
This study looks at whether a bisphosphonate medicine can reduce bone loss after sleeve gastrectomy (a type of weight-loss surgery). If you had the surgery, it may help protect your bones while you recover and lose weight.
Winston-Salem, North CarolinaAges 30 years+ - NCT05488288RecruitingPhase 3
Weight-loss surgery plus mesh repair for ventral hernia
This trial tests whether combining weight-loss surgery with a mesh repair for a midline ventral hernia works better and is safer than another approach. It may help people who have both severe obesity and a specific type of hernia reduce hernia problems after surgery.
ColombesAges 18–60
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Common questions
- Are there clinical trials for bariatric surgery (sleeve gastrectomy )?
- Yes. Clin2 currently lists 110 recruiting bariatric surgery (sleeve gastrectomy ) 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 (sleeve gastrectomy ) 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 (sleeve gastrectomy ) 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.