Clinical trials
Down Syndrome clinical trials
Below are recruiting down syndrome clinical trials, each written for real people, not researchers. We’re tracking 3,197 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT01793168Recruiting
Rare disease registry and history study
This study keeps a registry (a structured list) of people with rare diseases and may also track how the condition changes over time. It can help researchers better understand rare illnesses and find gaps in care, which may improve future treatments.
Sioux Falls, South DakotaAges Any age - NCT04463316Recruiting
Clinic study for people with rare genetic conditions
This study is for people who have a rare syndrome or rare congenital condition and are seen at a rare-disease clinic. It aims to better understand these conditions and how care works in a team setting, which may help guide future treatment decisions.
Rotterdam, South HollandAges 18 years+ - NCT06065852Recruiting
National registry for rare kidney diseases
This study creates a registry to collect health information from people with rare kidney diseases. It aims to improve understanding and future treatments by tracking patient experiences.
Bristol, South WestAges Any age - NCT03050268Recruiting
Study of childhood cancer risk in families
This study looks at inherited (family) risk for childhood cancers, including families with early cancers or known cancer risk conditions. It may help researchers understand why some children get cancer and improve future risk detection and care.
Memphis, TennesseeAges Any age - NCT01238250Recruiting
Online autism genetics study for families with certain genetic changes
This study asks people with specific genetic changes linked to autism and their family members to complete online tasks and questionnaires. It may help researchers better understand how these genetic differences relate to autism traits.
Boston, MassachusettsAges Any age - NCT03836300Enrolling by invitation
Parent-infant coaching for families with young diagnoses
This study tests a parent-and-infant coaching program for babies and caregivers. It aims to see whether the program helps after an early diagnosis when English is used at home.
Research Triangle Park, North CarolinaAges Up to 99 years - NCT03047369Recruiting
Myelin brain disorder research biobank for samples and data
This study collects brain-related medical information and biological samples to help researchers better understand leukodystrophies and other white-matter brain disorders. It may help future diagnosis and treatments by building a valuable “biobank” of patient data and samples.
Los Angeles, CaliforniaAges Any age - NCT03396562Recruiting
Study of early development in babies with extra sex chromosomes
This study follows infants and young children with conditions caused by having an extra sex chromosome (like XXY, XYY, or XXX) to learn how health and development unfold over time. It may help families and doctors understand what to expect and what support could be helpful.
Aurora, ColoradoAges 1 month–1.1 years - NCT06740162Recruiting
Physical activity program for adults with intellectual disabilities
This study tests a program to help adults with intellectual disabilities become more physically active. You and your caregiver will work with a coach to increase your daily movement, with the goal of improving health and community connection.
Fayetteville, ArkansasAges 18 years+ - NCT03630991RecruitingPhase 1
Calcium chelator medicine for AML or MDS during chemotherapy
This Phase 1 study tests whether edetate calcium disodium (also called succimer) can be safely given to people with acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) while they are on chemotherapy. The goal is to learn the safest dose and whether it has signs of helping the blood cancer respond to treatment.
Houston, TexasAges 1 year+ - NCT04806620Recruiting
Online app study for brain inflammation lifestyle data
This study uses a digital platform (app/website) to collect lifestyle and symptom information to better understand brain inflammation. You may qualify if you have certain conditions like Long COVID, migraines, autoimmune disease, inflammatory gut issues, mood disorders, or if you are a healthy comparison person.
Delafield, WisconsinAges 2 years+ - NCT06999954Recruiting
Global survey for Shwachman-Diamond syndrome and related conditions
This trial is a global survey and registry for people with Shwachman-Diamond Syndrome and related inherited blood disorders. It aims to connect patients, families, and researchers to better understand these conditions and improve care.
Woburn, MassachusettsAges Any age - NCT07003100Recruiting
Studying mogamulizumab rash in mycosis fungoides or sezary syndrome
This study looks at a common skin rash caused by the drug mogamulizumab in patients with certain types of lymphoma. It aims to learn more about the rash and how to manage it, so your experience can help future patients.
Duarte, CaliforniaAges 18 years+ - NCT06938542Enrolling by invitation
Palliative care needs for kids with rare diseases
This study asks children with rare diseases and their families about what kind of palliative care (comfort and support) they need. It aims to understand how to better help families through their child's illness.
Washington D.C., District of ColumbiaAges 1–99 - NCT05554835Recruiting
Mitochondrial disease registry and history study
This study collects information about people who have a suspected or confirmed mitochondrial disease. It aims to better understand how the disease looks over time, which can help future treatments.
InnsbruckAges Any age - NCT04395495Recruiting
RASopathy disorder study biobank for kids and families
This study collects and stores health samples and information from people with RASopathy conditions (like Noonan or Costello syndromes) and from family members who may not have the condition. It helps researchers understand these disorders and supports future studies that could lead to better care.
Cincinnati, OhioAges Any age - NCT06708429Recruiting
Lynch syndrome and gut immune system study
This study looks at how the immune system interacts with the gut lining in people with Lynch syndrome and those without. It may help us better understand how Lynch syndrome affects the body.
Monrovia, CaliforniaAges 18 years+ - NCT02435940Recruiting
Registry for inherited eye vision conditions
This study is a registry, meaning it collects information about people with inherited retinal (retina) diseases. It may help researchers learn how these conditions progress and connect you with future studies or treatments.
Columbia, MarylandAges Any age - NCT04569149Recruiting
Registry for very small-bodied, low-head-growth syndromes
This is a registry (a secure list of patients) for people with rare conditions that cause very small size and a smaller-than-usual head from early life. It helps researchers learn more about these conditions and how they vary from person to person.
Wilmington, DelawareAges Any age - NCT05505500Recruiting
Parent and patient interviews for childhood kidney swelling
This study uses interviews to understand how swelling from nephrotic syndrome affects daily life for children and their caregivers. It may help researchers design better care by capturing the patient and parent perspective.
Ann Arbor, MichiganAges 2 years+ - NCT05945576Recruiting
RaDiCo IDMet study for people with inherited ID
This study enrolls people of all ages who have a confirmed inherited condition called ID. It collects information to better understand the condition and support future care.
AngersAges Any age - NCT06546137Recruiting
Registry for inherited heart conditions in Brazil
This study is building a national registry in Brazil to learn more about inherited heart conditions and improve care. If you have a family-related heart disease, you may be able to join and help advance cardiovascular healthcare.
Rio Branco, AcreAges Any age - NCT07550218Recruiting
Surfactant Delivery Methods for Premature Babies with Breathing Problems
This study looks at different ways doctors give a life-saving medication called surfactant to premature babies who are struggling to breathe. Researchers want to understand which delivery methods work best and help improve care.
GothenburgAges Any age - NCT04586400Recruiting
Study for chromosome 9p deletion syndrome
This study looks at people who have “9p minus” syndrome, meaning part of chromosome 9 is missing. It aims to understand how genetic differences may affect symptoms, and it may include family members for comparison.
St Louis, MissouriAges Any age
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Down Syndrome trials by city
Studies with a site in or near these metro areas.
Down Syndrome trials by state
Studies with a site anywhere in these states.
Common questions
- Are there clinical trials for down syndrome?
- Yes. Clin2 currently lists 3,197 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.