Clinical trials
Obesity clinical trials
Excess body weight that increases the risk of many other health conditions. We’re tracking 1,501 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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 - NCT03561766Recruiting
Pregnancy birth-cohort study for early pregnancy participants
This study follows pregnant people from early pregnancy to help researchers better understand health and outcomes over time. It’s mainly for those who plan to receive care and deliver at Shengjing Hospital in the Shenyang area.
Shenyang, LiaoningAges 18 years+ - 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+ - NCT03574103Recruiting
Testing how fasting affects health in women with excess weight
This study looks at the long-term effects of fasting on the body in women who have a higher-than-average weight. It may help researchers understand potential benefits and risks of fasting, but it also requires you to meet several health and medication rules.
Belo Horizonte, Minas GeraisAges 18–59 - 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 - NCT03866408RecruitingEarly Phase 1
Testing how insulin affects fat breakdown proteins
This early study looks at how insulin changes the body’s fat breakdown and related proteins. You might join if you’re within a certain body-weight range and can safely take the study medication.
Rochester, MinnesotaAges 18–55 - NCT03868592Recruiting
Weight loss study in people with very high body weight
This trial looks at how to support long-term weight loss and improve how your body handles fat breakdown. It may help people who have severe obesity after bariatric (weight-loss) surgery, but it has several health and lifestyle limits.
Rochester, MinnesotaAges 18–65 - NCT03875625Recruiting
Tracking body fat and liver fat after weight-loss treatment
This study looks at how body fat and liver fat change after bariatric (weight-loss) surgery or a lifestyle program. You may join if you have overweight or obesity and can safely have MRI scans, so researchers can compare results between treatment approaches.
Hong Kong, ShatinAges 18–65 - NCT03885245RecruitingPhase 2
L-citrulline supplement for overweight adults with later-onset asthma
This Phase 2 trial tests whether adding L-citrulline can improve asthma control in overweight adults whose asthma started later in life. It compares your asthma symptoms and lung testing results to see if the supplement helps when asthma is already being treated.
Durham, North CarolinaAges 18–65 - NCT03934957Recruiting
Study of health in people living in Hamburg
This study follows adults living in Hamburg to better understand health and health-related factors over time. You may help researchers learn what influences health in this age group.
HamburgAges 45–74 - NCT03947697Recruiting
Electrical stimulation to help improve blood sugar control
This study tests whether electrical stimulation can improve blood sugar control in people who are overweight and not very active. It’s designed for people with low exercise habits and will compare how your blood sugar responds to the intervention.
El Paso, TexasAges 18 years+
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Common questions
- Are there clinical trials for obesity?
- Yes. Clin2 currently lists 1,501 recruiting obesity 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 obesity 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 obesity 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.