Clinical trials
Obesity clinical trials
Excess body weight that increases the risk of many other health conditions. We’re tracking 1,500 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06776081Recruiting
Weight loss, fat cell particles, and blood vessel health
This trial looks at how weight loss changes tiny particles released from fat cells and whether that improves blood vessel function. It may help understand how losing weight can protect your heart.
Boulder, ColoradoAges 40 years+ - NCT06780813Recruiting
High flow oxygen to reduce infections in obese gynecologic cancer patients
This trial tests whether giving high flow oxygen during and after surgery can lower the risk of infections in obese women with gynecological cancer. It may help improve recovery after surgery.
AthensAges 18–85 - 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+ - NCT06782529RecruitingPhase 4
Knee injection study for patients with obesity and arthritis
This study tests if steroid injections for knee arthritis work in people with obesity. It may help you manage pain and avoid surgery.
Jacksonville, FloridaAges 55–85 - NCT06796764Recruiting
Breathing tube safety during endoscopy in people with obesity
This trial tests a special breathing tube to see if it can prevent low oxygen levels during sedated endoscopy in people with obesity. If you are scheduled for both an upper endoscopy and colonoscopy, this study may help make the procedure safer.
Hangzhou, ZhejiangAges 18–70 - NCT06795386Recruiting
Widespread pain after rapid weight loss in Black and Hispanic adults
This study looks at whether rapid weight loss from bariatric surgery leads to long-term widespread pain in Black and Hispanic adults. The goal is to understand how weight loss affects pain and find better ways to help people manage it.
New York, New YorkAges 18–75 - NCT06795490Recruiting
Helping families build healthy routines to prevent early obesity
This study looks at how simple family routines—like mealtime, bedtime, and play—can help prevent obesity in young children. It’s designed for families with low income who want to build healthier habits together.
Ann Arbor, MichiganAges 2 years+ - NCT06806787Recruiting
Can Copeptin and Thirst Predict Weight-Loss Surgery Success?
This study looks at whether levels of a blood marker called copeptin and your sense of thirst can help predict how well bariatric (weight-loss) surgery works. If you are eligible, you will have blood tests and answer questions about thirst before and after surgery.
Bologna, BolognaAges 18–65 - NCT06816147Recruiting
HealthyW8: a weight-health study for adults 60+
This study tests a program to help people aged 60 and older in Luxembourg maintain a healthy weight using a smartphone app. It may be a good fit if you are generally healthy, not on a strict diet, and want to prevent weight gain as you age.
LuxembourgAges 60 years+ - NCT06824974Recruiting
Time-restricted eating for liver disease or cancer
This study tests whether combining time-restricted eating with healthy eating helps people with metabolic liver disease, cirrhosis, or early-stage liver cancer. If you are overweight and currently fast less than 12 hours at night, this diet approach might improve your health.
La Jolla, CaliforniaAges 18 years+ - NCT06826963Recruiting
Eccentric exercise for older adults with heart failure and muscle loss
This study tests whether a special type of exercise (eccentric, or lengthening, exercises) can help older adults with heart failure who also have muscle loss. It aims to see if the exercise is safe and improves strength and function.
Verona, VeronaAges 65–85 - NCT06839677Recruiting
Quality of life after endoscopic vertical gastroplasty
This study looks at how people feel about their quality of life after a type of weight loss surgery called endoscopic vertical gastroplasty (GVE). If you had this surgery at least 6 months ago and can use a computer or tablet, you may be able to share your experience through a survey.
Roma, RMAges 18 years+ - NCT06844786Recruiting
Helping newcomer families get active in Hamilton
This study looks at ways to help newcomer families in Hamilton get their children moving more. It offers a program to increase physical activity and reduce screen time in kids aged 5 to 11.
Hamilton, OntarioAges 5–11 - NCT06845046Recruiting
Improving muscle health for veterans with HIV
This study tests a way to help veterans with HIV build stronger muscles. It may help improve your strength and overall health.
Nashville, TennesseeAges 20–80 - NCT06847399RecruitingPhase 2
Tirzepatide for Binge Eating Disorder
This trial tests if tirzepatide (a weekly injection) can help reduce binge eating compared to a placebo or another medication (lisdexamfetamine dimesylate). It may be a good fit for people with moderate or severe binge eating disorder who also have a high body weight.
Baltimore, MarylandAges 18 years+ - NCT06849206Recruiting
Growing up in Louisiana health study for families
This study follows children, teens, and young adults and their families in Louisiana. It looks at health over time to understand what keeps people well.
Baton Rouge, LouisianaAges Any age - NCT06853288Recruiting
How processed foods affect energy from food
This study looks at how eating ultra-processed foods changes how much energy your body takes from food. If you have a BMI between 30 and 40 and are otherwise healthy, you may help scientists learn more about weight and metabolism.
New York, New YorkAges 25 years+ - NCT06853652Recruiting
Protein needs after weight-loss surgery
This study looks at how much protein you need after Roux-en-Y gastric bypass (RYGB) surgery. It will help find the right amount of protein to keep your body healthy after weight-loss surgery.
LeuvenAges 18–65 - NCT06855784Recruiting
Time-Restricted Eating for Menopause and Breast Cancer
This study tests if time-restricted eating (eating only during a set window each day) can help women with menopausal symptoms, including those who have had hormone-sensitive breast cancer and are on hormone-blocking therapy.
Geneva, Canton of GenevaAges 45–60 - NCT06859853RecruitingPhase 1
MWN109 injection safety study in healthy volunteers
This trial tests an investigational injection called MWN109 to see if it is safe and how the body processes it. It is for healthy adults only, and the results will help decide if the drug should be tested in people with medical conditions.
Melbourne, VictoriaAges 18–50 - NCT06862375Recruiting
Mayo Clinic diet for weight loss study
This trial tests if following the Mayo Clinic Diet helps adults with overweight or obesity lose weight. You would use the diet book and app and get support from the study team.
Rochester, MinnesotaAges 18–64 - NCT06869941Recruiting
How gut health and fat tissue are linked in the brain
This study looks at how the bacteria in your gut might affect your fat tissue and brain. You may be able to join if you are scheduled to have surgery to remove fat tissue and are willing to sign a consent form.
Girona, GironaAges 20 years+ - NCT06870578Recruiting
Building healthy eating habits for preteens
This trial helps researchers develop programs to support healthy eating in kids ages 9-11 with overweight. It involves focus groups, and some parts include brain scans to understand eating habits.
Seattle, WashingtonAges 9 years+ - NCT06874309Recruiting
Brain stimulation before weight-loss surgery for better eating control
This trial tests if gentle electrical brain stimulation (called tDCS) before weight-loss surgery can help you gain better control over your eating habits. It's designed for people with severe obesity who struggle with overeating.
Brno, CzechiaAges 18–65
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Common questions
- Are there clinical trials for obesity?
- Yes. Clin2 currently lists 1,500 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.