Clinical trials
Overweight or Obese clinical trials
Below are recruiting overweight or obese clinical trials, each written for real people, not researchers. We’re tracking 1,536 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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 - NCT03517072Recruiting
Study of long-term success after bariatric surgery
This study looks at what helps people do well in the long run after bariatric (weight-loss) surgery. You may be able to join if you had the surgery about five years ago and are willing to participate.
ArrasAges Any age - 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 - NCT03527420Recruiting
Study of body fat, blood vessels, and DNA changes
This study looks at how having a high body mass index affects blood vessel function and changes in DNA. It may help researchers understand why weight-related health risks happen and how bariatric surgery could help.
Chicago, IllinoisAges 18–50 - 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+ - 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 - NCT03554902Recruiting
Endoscopic procedure for gastric tubulization
This trial is for people who are already planned to have a specific stomach (gastric) procedure using an endoscope (a flexible camera). It mainly aims to study how this procedure is done and how patients do afterward.
StrasbourgAges 18–65 - NCT03569735Recruiting
Elderly health survey in Nanshan, Shenzhen
This study follows people age 65 and older in Nanshan to learn about health over time using surveys and health samples. It may help researchers understand what supports healthy aging in the community.
Shenzhen, GuangdongAges 65 years+ - NCT03633162Recruiting
Study about maternal grandmothers’ effects on babies
This study looks at whether what maternal grandmothers know, do, or influence during a pregnancy is linked to outcomes for grandchildren. You may be included if your grandchild was born at the study hospital and key pregnancy details are available.
Guangzhou, GuangdongAges 36–100 - NCT03634930Recruiting
Study of how early pregnancy choices affect your baby
This trial looks at how “perinatal programming” (early-life influences starting around pregnancy and the first month) may affect babies. It enrolls healthy, full-term births and compares families who can follow an all-breastfeeding or all-formula plan.
Graz, StyriaAges 18–50 - NCT03663530Recruiting
Study how sleep timing affects hunger, energy, and metabolism
This study tests how changing your daily sleep and meal timing affects your energy use, hunger, and related body processes. You may be asked to follow a sleep/meal schedule and complete questionnaires and assessments (including an MRI scan).
New York, New YorkAges 20–49 - NCT03687411Recruiting
Ultrasound tool to find spinal landmarks for anesthesia
This trial tests an ultrasound-based device that automatically marks key spots in your lower back so anesthesia can be given more accurately. It may help the anesthesia provider place the needle with better guidance during surgery.
SingaporeAges 21–75 - NCT03699228Recruiting
Low-dose chest CT study for adults in China
This study is looking at people ages 30 to 90 who are willing to get a low-dose chest CT scan. It may help researchers improve how health data is collected and understood from scans.
Wuhu, AnhuiAges 30–90 - NCT03762395RecruitingPhase 2
Study of anti-inflammatory asthma molecules in adults
This Phase 2 study tests anti-inflammatory lipid mediators in people with asthma. You may be eligible if your asthma is not well controlled despite regular inhaler use and you meet the specific lung function and health criteria.
Aurora, ColoradoAges 18–65 - NCT03794531Recruiting
Study of health, stress, and lifestyle changes in Puerto Rico
This study looks at how people’s health, day-to-day stress, and living conditions in Puerto Rico change over time. You might help researchers understand what trends are happening and what could be improved.
San JuanAges 30–75 - NCT03830879Recruiting
Pregnancy and child health follow-up study in Shenzhen
This study enrolls pregnant people early in pregnancy and follows their babies’ health through age 7. It may help researchers understand health and development patterns in Shenzhen families and improve future child health care.
Shenzhen, GuangdongAges 15–49 - NCT03842475Recruiting
Who may benefit from weight-loss surgery for diabetes?
This study looks at which people with type 2 diabetes (or prediabetes) are most likely to benefit from bariatric surgery. It compares people who are planning surgery with healthy volunteers to better understand how body changes relate to blood sugar.
London, Greater LondonAges 18–80
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Common questions
- Are there clinical trials for overweight or obese?
- Yes. Clin2 currently lists 1,536 recruiting overweight or obese 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 overweight or obese 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 overweight or obese 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.