Clinical trials
Overweight or Obesity clinical trials
Below are recruiting overweight or obesity clinical trials, each written for real people, not researchers. We’re tracking 1,472 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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+ - NCT04496895Recruiting
Orange peel drink study for reducing body fat
This trial looks at whether a fermented orange peel product can lower body fat in adults. It may help if you have higher body fat and/or fatty liver, and you meet safety and health limits.
Taipei, TaiwanAges 20–65 - 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 - 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 - 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 - 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+ - NCT04248127Recruiting
Honey yogurt to improve gut health and mild inflammation
This study tests whether honey-flavored yogurt can improve gut health and “low-grade” inflammation in middle-aged and older women after menopause. You may be asked to follow a yogurt-focused plan and avoid certain foods or supplements to see the effect.
Davis, CaliforniaAges 45–65 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - NCT03692455Enrolling by invitation
Compare two weight-loss surgeries for reflux over 8 years
This study follows people for up to 8 years to see how two different weight-loss surgeries affect ongoing heartburn and acid reflux. You would join only if you were already enrolled in an earlier related study and can complete required follow-up visits and tests.
Passo Fundo, Rio Grande do SulAges 18–78 - 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
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Common questions
- Are there clinical trials for overweight or obesity?
- Yes. Clin2 currently lists 1,472 recruiting overweight or 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 overweight or 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 overweight or 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.