Clinical trials · Illinois
Obesity clinical trials in Illinois
We’re tracking 62 recruiting obesity studies with a site in Illinois — including Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in Illinois
- NCT06937099RecruitingPhase 3
Testing two drugs for Crohn's with weight issues
This trial tests two study drugs, mirikizumab and tirzepatide, in people with moderate to severe Crohn's disease who also have overweight or obesity. The goal is to see if these treatments can help control Crohn's symptoms and inflammation.
Chicago, IllinoisAges 18–70 - NCT06937086RecruitingPhase 3
Mirikizumab plus tirzepatide for UC with obesity
This study tests whether adding mirikizumab to the weight-loss drug tirzepatide helps people with moderate-to-severe ulcerative colitis who also have obesity or overweight. It aims to see if the combination reduces bowel inflammation and helps with weight management.
Chicago, IllinoisAges 18–70 - NCT06760546RecruitingPhase 3
Testing setmelanotide for weight gain after brain injury
This trial tests a daily injection called setmelanotide to see if it can help people who have gained weight due to a brain injury or condition affecting the hypothalamus. It may help reduce hunger and support weight loss.
Chicago, IllinoisAges 4 years+ - NCT06672549RecruitingPhase 3
Weight loss medication study for children with obesity
This trial tests a medication for children and teens with obesity or overweight who have not been able to lose enough weight with diet and exercise alone. It aims to see if a new treatment can help them safely lose weight and improve related health problems.
Chicago, IllinoisAges 6–17 - NCT06672939RecruitingPhase 3
Orforglipron for Weight Loss in Teens
This study tests a once-daily pill (orforglipron) to help adolescents with obesity or overweight plus related health problems lose weight. It offers a new option for teens who have struggled to lose weight with diet and exercise alone.
Chicago, IllinoisAges 12–17 - NCT06636058Recruiting
Digital treatment for weight and mood in adults 50+
This study tests a digital program that helps with weight loss and depression at the same time. It is designed for Black, Hispanic, and other adults over 50 who carry extra weight and feel down.
Chicago, IllinoisAges 50–74 - NCT06439277RecruitingPhase 3
Tirzepatide for teens with obesity and related health problems
This study tests a medication called tirzepatide (a once-weekly injection) to help teenagers with obesity and related health conditions lose weight. It aims to see if the drug is safe and effective for this age group.
Chicago, IllinoisAges 12–17 - NCT06143956RecruitingPhase 2
Weight loss treatments for adults with obesity
This clinical trial tests new treatments for adults who are overweight or have obesity. The goal is to help people lose weight and improve their health.
Chicago, IllinoisAges 18–75 - NCT05918575Recruiting
Breathing support after a breathing tube in very obese adults
This trial tests whether giving noninvasive breathing support (using a mask or similar device, without a new breathing tube) right after removing a breathing tube works better for severely obese adults. It mainly looks at people at higher risk of needing help breathing again after extubation.
Winfield, IllinoisAges 18 years+ - NCT05326477Recruiting
Study factors that predict how well behavioral weight plans work
This study looks at which personal and health factors help or hurt how well behavioral obesity treatments work. It may help doctors better tailor weight-treatment plans for people with obesity.
Chicago, IllinoisAges 18 years+ - NCT05125822Recruiting
Study of how bodies change weight in youth with obesity
This study looks at what helps or drives weight changes in children and teens with obesity. You may be asked about growth and body changes to better understand why weight changes happen and how to manage them.
Chicago, IllinoisAges 11–15 - NCT03135730Recruiting
ROHHAD patient registry for rapid-onset obesity
This study is a registry that collects information from people diagnosed with, or suspected to have, ROHHAD. It can help researchers better understand the condition over time and improve future care.
Chicago, IllinoisAges Any age - NCT07837973RecruitingPhase 2
Medicine to maintain weight loss after weight-loss shots
This study tests a new medicine called ALV-100 to see if it can help people who have already lost weight with a weight-loss injection or pill keep the weight off. You must be currently on a stable weight-loss medicine and have lost at least 10% of your body weight to join.
Champaign, IllinoisAges 18–75 - NCT07798557Recruiting
Lifestyle and diet support for weight and heart health
This study tests a program to help you improve your diet and lifestyle, which may reduce your risk for heart disease and help with weight loss. You will get support to make healthy changes over the next year.
Chicago, IllinoisAges 50–79 - NCT07789769Recruiting
Online weight loss program focusing on protein, fiber, and exercise
This study tests a 6-month online weight loss program that focuses on eating more protein and fiber and adding exercise—called the '30-30-30 Plan.' It's a chance to get support and guidance to help you reach your weight loss goals.
Addison, IllinoisAges 18–69 - NCT07783802RecruitingPhase 2
Study of clazakizumab for adults with high inflammation and heart risk
This study tests whether clazakizumab can reduce the risk of heart attacks or strokes in people with high levels of inflammation (measured by a blood test called hsCRP) and conditions like heart disease, obesity, diabetes, high blood pressure, or kidney disease. If you qualify, you'll receive either the study drug or a placebo to see if it helps lower your risk.
Lombard, IllinoisAges 18 years+ - NCT07745504RecruitingPhase 3
Comparing two versions of a new weight-loss medication
This study compares two different versions of an investigational weight-loss medication (cagrilintide) against a placebo to see which is more effective and safe for people with excess weight. Participation involves receiving injections and regular check-ins to monitor your progress.
Oak Park, IllinoisAges 18 years+ - NCT07720271RecruitingPhase 3
Zenagamtide weight loss study for adults
This study is testing a new tablet called Zenagamtide to help people with extra body weight lose weight. It's for adults who are not diabetic and haven't used similar weight loss drugs before.
Skokie, IllinoisAges 18 years+ - NCT07684235RecruitingPhase 3
Long-term study of a weight-loss drug for trial graduates
This study tests a drug called Maridebart Cafraglutide for long-term weight management in people who completed a previous related trial. It looks at how well the drug works and its safety over time.
Chicago, IllinoisAges 18–99 - NCT07684144RecruitingPhase 3
Long-term study of a weight-loss medication for people who completed an earlier trial
This study tests the long-term effects of a medication called maridebart cafraglutide for weight management. It is for people who already completed a 72-week study of this drug and want to continue treatment.
Skokie, IllinoisAges 18–99 - NCT07668414RecruitingPhase 3
Study comparing Zenagamtide and Semaglutide for weight loss
This trial tests a new medicine Zenagamtide to see if it helps people with excess weight lose more weight than Semaglutide, an existing weight loss drug. You may join if you are an adult with overweight or obesity but do not have diabetes.
Skokie, IllinoisAges 18 years+ - NCT07667803RecruitingPhase 3
Study of elecoglipron for weight loss in obesity or overweight
This trial tests an investigational drug called elecoglipron to see if it helps people with obesity or overweight lose weight. It may be an option if you have a high body mass index or weight-related health issues like high blood pressure or prediabetes.
Melrose Park, IllinoisAges 18 years+ - NCT07571005RecruitingPhase 3
Testing a New Weight-Loss Medicine for Sleep Apnea
This study tests whether a new injectable medicine called NNC0487-0111 helps people with excess weight and moderate-to-severe obstructive sleep apnea (a condition where breathing stops repeatedly during sleep) lose weight and improve their sleep apnea—without needing a CPAP machine. The goal is to see if better weight loss can reduce sleep apnea symptoms.
Chicago, IllinoisAges 18 years+ - NCT07571109RecruitingPhase 3
Weight Loss Medicine for Sleep Apnea on CPAP
This study tests a new injectable medicine (NNC0487-0111) to help people lose weight and improve obstructive sleep apnea (a breathing condition during sleep). You must already be using a CPAP machine (positive airway pressure device) for your sleep apnea.
Chicago, IllinoisAges 18 years+
Obesity trials by city in Illinois
Where these studies are running in Illinois
Institutions with a site for the recruiting obesity studies listed above.
- Ann & Robert H. Lurie Children's Hospital of Chicago · 5 studies
- Endeavor Health · 4 studies
- Rush University Medical Center · 4 studies
- Chicago Research Center, Inc · 2 studies
- Great Lakes Clinical Trials · 2 studies
- Accellacare - DuPage
- Ann & Robert H. Lurie Children's Hospital of Chicago and the Stanley Manne Children's Research Institute
- Biofortis Clinical Research
What taking part in a obesity study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Obesity trials in other states
Common questions
- Are there obesity clinical trials in Illinois?
- Yes. We're currently tracking 62 recruiting obesity studies with a site in Illinois, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a obesity study in Illinois?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Do I have to live in Illinois to take part?
- Not necessarily. These studies have a site in Illinois, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a obesity trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New obesity studies open in Illinois regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.
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.