Clinical trials
Obesity clinical trials
Excess body weight that increases the risk of many other health conditions. We’re tracking 1,433 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04851470Recruiting
Dental gum check in adults with obesity
This study looks at gum health in adults with obesity. It may help researchers understand how weight and related health factors affect periodontal (gum) status and what to monitor in bariatric care populations.
LondonAges 18 years+ - NCT04841057Enrolling by invitation
Study of blood and stool changes after weight-loss surgery
This study looks at how your body’s metabolism changes after a specific weight-loss surgery (gastric bypass). It may help researchers better understand what to expect and how to tailor care, while requiring blood draws and stool samples before and after surgery.
Columbia, MissouriAges 18–80 - NCT04708535Enrolling by invitation
Study how fat changes affect insulin resistance after bariatric surgery
This study looks at how your body’s fat under the skin and inside the abdomen may affect “insulin resistance,” a common problem linked with blood sugar control. It’s for people who are scheduled for bariatric (weight-loss) surgery, to learn more before and after surgery.
Stanford, CaliforniaAges 30–65 - NCT04603859Recruiting
When to induce labor for people with higher weight
This study looks at the best timing to start labor (induction) during pregnancy for people with a higher body weight. It may help reduce risks by comparing earlier vs later induction in otherwise eligible pregnancies.
AarhusAges 18 years+ - NCT04678752Enrolling by invitation
Weight management program through primary care visits
This study tests a practical weight-management approach delivered in regular primary care clinics. You may be offered support to help with weight if you’re an adult with a higher-than-normal BMI.
Arvada, ColoradoAges 18–89 - NCT04634591Recruiting
Weight-loss surgery study for people with severe obesity
This trial studies bariatric (weight-loss) surgery and how well it helps people reach and keep a healthier weight. You may qualify if you have severe obesity and have not been able to maintain weight loss with other attempts, and if you can safely follow the study plan.
Bialystok, Podlaskie VoivodeshipAges 18 years+ - NCT04611087Recruiting
Weight-loss program participants: self-monitoring focus group
This trial is looking to learn from people who finished a specific weight-loss program recently and ask them to share their experiences. The goal is to improve how weight-loss support and tracking work for participants.
Houston, TexasAges Any age - NCT04583514Recruiting
Overfeeding study to see how body fat can expand
This trial studies how your body’s fat tissue changes when you eat extra food for 8 weeks. It may help researchers understand why some people gain more weight than others.
Baton Rouge, LouisianaAges 18–42 - NCT04551482RecruitingPhase 2
Oxytocin to help teens lose weight
This study tests whether the hormone oxytocin can help adolescents with obesity lose weight. You may be asked to stay on your usual diet and routines during the 18-week study to see how well the treatment works.
Boston, MassachusettsAges 10–18 - NCT04494048Recruiting
Registry for people considering endoscopic weight-loss procedures
This study keeps a record of people who are planning or recently had an endoscopic (camera-based) weight-loss procedure. The goal is to learn how these procedures work in real life and help doctors improve care.
New York, New YorkAges 18–89 - NCT04431232Recruiting
Gastric banding during endoscopy to help with weight loss
This trial studies an endoscopic procedure that places a band inside the stomach to help reduce weight. You may be considered if your body weight is above a certain level and you’re able to safely undergo an endoscopy.
Giza, DokkiAges 18–65 - NCT04453072Recruiting
iPhone weight-loss app for teens and young adults after transplant
This study tests whether an iPhone weight-management app can help adolescents and young adults lose weight after a stem cell transplant. If you qualify, you’ll use the app and the team will track changes in weight.
Los Angeles, CaliforniaAges 13–30 - NCT04297592Enrolling by invitationPhase 4
Antibiotics to prevent infection after hip or knee replacement
This trial studies whether giving antibiotics before and/or after surgery can lower the chance of a serious joint infection after elective hip or knee replacement. It’s aimed at people at higher risk for infection.
Iowa City, IowaAges 18–99 - NCT04326192Recruiting
Spinal cord stimulation to reduce stubborn back and leg pain
This trial tests whether spinal cord stimulation (a treatment where a device sends mild signals to the spinal cord) can improve persistent nerve-type back and leg pain. It is mainly for adults who are already planning to try spinal cord stimulation but have not tried it before.
Portland, OregonAges 21–70 - NCT04284943Recruiting
Surgery for stomach cancer and diabetes
This trial tests a surgery for early-stage stomach cancer that also aims to improve type 2 diabetes by changing how your body processes food. It might be an option if you have both conditions and are not using insulin.
SeoulAges 20–69 - NCT04190758Enrolling by invitation
Early arthritis study for RA, psoriatic arthritis, and psoriasis
This study looks at people with early arthritis related to rheumatoid arthritis, psoriatic arthritis, or psoriasis. Researchers want to understand how these early conditions behave and may help guide better treatment decisions.
GothenburgAges 18–80 - NCT04174755Recruiting
Semaglutide for weight loss in adults with HIV
This trial studies whether semaglutide (a diabetes-type weight-loss injection) helps adults with HIV lose weight. It also checks that it’s safe for people whose HIV is well controlled on regular treatment.
Dublin, DublinAges 18 years+ - NCT04101669Recruiting
Weight-loss liner implant for type 2 diabetes
This study tests an implantable device called the RESET System that may help people with type 2 diabetes lose weight and improve blood sugar control. It is placed in the stomach without surgery and is for adults aged 22 to 65 who are overweight and have not had enough improvement with diabetes medications.
Gilbert, ArizonaAges 22–65 - NCT04046562Recruiting
Testing a teen pain-and-weight program
This trial studies a program meant to help teens manage weight when they also have ongoing muscle or joint pain. It may help by targeting pain feelings and supporting healthier weight habits at the same time.
Hartford, ConnecticutAges 12–18 - NCT03927638Enrolling by invitation
Standing versus sitting study for heart and metabolism measures
This trial compares how different body positions (sitting vs standing) affect blood and heart-related measurements in otherwise healthy adults. It may help researchers understand which position is better for metabolic and cardiovascular health.
Montclair, New JerseyAges 18–50 - NCT03851458Enrolling by invitationPhase 2
Spanish coaching for healthier food choices for weight
This Phase 2 study tests a program (with food guidance, text messages, and check-ins) to help people eat more healthfully. It is designed for adults who are overweight or obese and can speak Spanish (with some separate tracks for different groups).
New York, New YorkAges 18 years+ - NCT03840733Enrolling by invitation
Study linking meal timing and habits to weight loss
This study looks at how timing of daily behaviors (like eating) relates to how much weight people lose during a behavioral weight loss program. You may be asked to track your activity with wearable devices and to do body-metabolism testing using urine samples and special water.
Aurora, ColoradoAges 18–60 - 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 - 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
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Common questions
- Are there clinical trials for obesity?
- Yes. Clin2 currently lists 1,433 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.