Clinical trials
Down Syndrome clinical trials
Below are recruiting down syndrome clinical trials, each written for real people, not researchers. We’re tracking 3,186 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03612193Recruiting
Study how gut bacteria relates to complex regional pain
This study looks at differences in gut bacteria (from a stool sample) in people with complex regional pain syndrome (CRPS) and in people who live with them. The goal is to understand whether gut microbes might play a role in CRPS and improve understanding of the condition.
St Louis, MissouriAges 18 years+ - NCT03613545RecruitingPhase 2/Phase 3
Fecal transplant to treat irritable bowel syndrome
This study tests whether transferring stool bacteria from a healthy donor (fecal microbiota transplantation) can improve symptoms of irritable bowel syndrome (IBS). It may help by changing the gut bacteria that can influence digestion and gut discomfort.
Guangzhou, GuangdongAges 18–75 - NCT03621241Recruiting
Blood test study to help diagnose myelodysplastic syndrome
This study checks whether a detailed blood-cell test can help diagnose myelodysplastic syndrome (MDS), a bone marrow condition that can cause low blood counts. Your results are compared with standard bone marrow testing to see how well the blood test performs.
AmiensAges 18 years+ - NCT03659227Recruiting
Sample collection for serious drug skin reactions
This study collects skin and blood samples from adults who have a serious rash caused by medicines. The goal is to better understand these reactions and how to diagnose them sooner and more accurately.
CréteilAges 18 years+ - NCT03663348Recruiting
Patient registry for Takotsubo (stress) heart syndrome
This study is a patient registry that collects information from people diagnosed with Takotsubo syndrome, also known as a stress-related heart condition. It may help researchers learn more about who is affected and how the condition behaves over time.
New York, New YorkAges 18–110 - NCT03675087Recruiting
Testing how exercise affects symptoms in ME/CFS
This trial studies how people with ME/CFS respond to an exercise test. It may help researchers understand what kind of exercise response is typical and how it relates to symptoms.
MadridAges 18–65 - NCT03702309Recruiting
Banking and testing blood samples to study cancer
This study collects blood samples to “test and store” (bank) information that may help doctors understand cancer in the future. You might be able to join if you’re an adult with confirmed cancer or a higher-than-usual risk for cancer.
Toronto, OntarioAges 18 years+ - NCT03708900RecruitingPhase 2
Osilodrostat study for children with Cushing’s syndrome
This Phase 2 study tests how osilodrostat works in children and teens with Cushing’s syndrome—what the drug does in the body, how it affects hormones, and how safely it’s tolerated. It may help families who cannot have immediate surgery or whose surgery has already failed or is still pending.
San Francisco, CaliforniaAges 2–17 - NCT03718936Recruiting
Study of genetic ADNP conditions in children and adults
This study looks at how people with certain disease-causing changes in the ADNP gene function using medical, genetic, and thinking/behavior assessments. It may help doctors better understand the condition and tailor support for families.
New York, New YorkAges 2 years+ - NCT03736707Recruiting
Testing two breathing machines in very preterm babies
This study compares two ways of helping very preterm infants breathe: a special high-frequency ventilation method versus the standard mechanical ventilator. It aims to see which method works better for preterm babies with breathing failure soon after birth.
Chongqing, Chongqing MunicipalityAges 1 minute–1 hour - NCT03753412Recruiting
Rehab program for adults after ICU recovery on ECMO
This trial looks at a recovery and rehabilitation approach for adults who were very sick and needed a machine called ECMO to support breathing and heart function. It may help people regain strength and function after a severe ICU illness.
LondonAges 18 years+ - NCT03764748RecruitingPhase 1
Washed stool transplant for Tourette syndrome in kids
This Phase 1 study tests whether a “washed” stool microbiota transplant can reduce Tourette syndrome tics in children. It aims to see if changing gut bacteria is safe and may improve tic severity.
Nanjing, JiangsuAges 6–17 - NCT03794466Recruiting
Study pain relief after blocking gonadal veins for pelvic congestion
This study looks at how much pelvic pain improves after a procedure called gonadal vein embolization (blocking problem veins). It mainly applies to people diagnosed with pelvic congestion syndrome caused by venous (vein) problems, treated during a specific time window.
Kansas City, KansasAges 18 years+ - NCT03801434RecruitingPhase 2
Ruxolitinib for people with certain eosinophil overgrowth diseases
This trial studies ruxolitinib to treat illnesses where the body makes too many eosinophils (a type of white blood cell) and symptoms or organ damage happen. It may help shrink disease activity when steroids are not enough, cannot be tolerated, or the illness comes back.
Palo Alto, CaliforniaAges 18 years+ - NCT03805477RecruitingPhase 2
Nintedanib for lung scarring after bone marrow transplant
This trial tests nintedanib to slow or improve bronchiolitis obliterans syndrome (BOS), a type of lung scarring, after a hematopoietic stem cell transplant. You may be considered if your breathing tests and scans show BOS, and if active infections and certain health risks are ruled out.
RiyadhAges 18 years+ - NCT03851484Recruiting
Study sensory symptoms in people with Tourette-related tics
This study looks at sensory symptoms in adults who have Tourette syndrome or similar long-term tic disorders. Your answers to questionnaires may help researchers understand these symptoms and how they relate to the condition.
Nashville, TennesseeAges 18 years+ - NCT03852407RecruitingPhase 2
Two kinds of conditioning before matched stem cell transplant
This trial compares two reduced-intensity conditioning regimens before you receive stem cells from a donor who matches your HLA type. It aims to find which approach works better and is safer for certain blood cancers.
AntwerpAges 18–75 - NCT03886662RecruitingPhase 1/Phase 2
LB-100 for low-risk MDS after prior treatment failure
This Phase 1/2 trial studies LB-100 in adults with low or intermediate-1 risk myelodysplastic syndromes (MDS). It may help by improving blood counts or disease control in people whose prior treatments have not worked or stopped working.
Tampa, FloridaAges 18 years+ - NCT03970096RecruitingPhase 2
Reduce graft-versus-host disease after stem cell transplant
This Phase 2 study tests ways to lower the risk of graft-versus-host disease (GVHD), a serious complication after an allogeneic stem cell transplant from a matched donor. It is for people with acute leukemia or MDS who are going to receive intensive conditioning therapy, aiming to improve safety while keeping the transplant effective.
Tampa, FloridaAges 1–60 - NCT03988764Recruiting
Checking monogenic diabetes wrongly labeled as type 1
This trial looks at people who were diagnosed with diabetes before age 25 as either type 1 or “not sure which type.” It may help confirm whether the cause is genetic (monogenic) rather than type 1, which can change treatment choices.
Montreal, QuebecAges 1 day–25 years - NCT03994367Recruiting
Study of diet protein types and how they affect blood sugar
This study looks at how eating more or different types of proteins (animal vs plant) may change your blood sugar handling. It mainly targets adults who eat relatively little protein and have no diabetes.
Columbia, MissouriAges 21–70 - NCT07702123Recruiting
Physical activity study for women with Behcet's and metabolic syndrome
This study tests if a physical activity program helps women who have both Behcet's disease and metabolic syndrome. It aims to improve their health and well-being.
Giza, DokkiAges 40–50 - NCT07703371Recruiting
Kodo millet porridge and its effect on gut health and metabolic syndrome
This study tests whether eating Kodo millet porridge every day for 12 weeks can improve gut health and reduce risk factors for metabolic syndrome (like being overweight). If you are between 20 and 60 years old, are overweight or obese, and are willing to eat the porridge daily without changing your diet or exercise, you may be able to join.
Mysore, KarnatakaAges 20–60 - NCT07577492Recruiting
Neck Position Sense and Balance in Students With Rounded Shoulders
This study examines how neck position awareness, core strength, and balance are affected in university students with Upper Crossed Syndrome—a posture problem involving forward head position and rounded shoulders. The research may help identify better treatments for chronic neck pain linked to poor posture.
Istanbul, TopkapiAges 18–30
Hear when a new Down Syndrome trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for down syndrome?
- Yes. Clin2 currently lists 3,186 recruiting down syndrome 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 down syndrome 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 down syndrome 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.