Clinical trials · St. Louis, MO
Down Syndrome clinical trials in St. Louis
We’re tracking 57 recruiting down syndrome studies with a site in or near St. Louis — including Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies near St. Louis
- NCT06641414RecruitingPhase 3
Lisaftoclax with azacytidine for higher-risk myelodysplastic syndrome
This trial tests a new drug called lisaftoclax combined with a standard treatment, azacytidine, for people newly diagnosed with higher-risk myelodysplastic syndrome (MDS). The goal is to see if the combination helps control the disease better than what's currently available.
St Louis, MissouriAges 18 years+ - NCT07220187RecruitingPhase 3
Adding pirtobrutinib to usual treatment for newly diagnosed Richter transformation
This study tests whether adding a targeted drug called pirtobrutinib to the usual chemotherapy for Richter transformation can improve outcomes. It is a phase 3 trial, meaning it compares the new combination to the standard approach, and may help patients live longer or delay progression.
St Louis, MissouriAges 18 years+ - NCT07636811RecruitingPhase 2
Mivelsiran for Early Alzheimer's in Down Syndrome
This trial tests a new drug called mivelsiran designed to slow early-stage Alzheimer's disease in adults with Down syndrome. The drug works by targeting amyloid, a protein that builds up in the brain and causes cognitive decline.
St Louis, MissouriAges 40–55 - NCT06484062RecruitingPhase 1
Testing cirtuvivint alone and with ASTX727 for leukemia and MDS
This trial tests a new drug called cirtuvivint, given alone or with another drug (ASTX727), for people with acute myeloid leukemia (AML) or myelodysplastic syndromes (MDS) that has come back or not responded to treatment, and for people with high-risk MDS who have not been treated before. The goal is to see if these combinations work better than current options.
St Louis, MissouriAges 18 years+ - NCT06850038Recruiting
Long-term study of odevixibat in Alagille syndrome
This study follows people with Alagille syndrome who are already taking or starting odevixibat (Bylvay). It looks at how well the medicine works and how safe it is over a long period of time.
St Louis, MissouriAges Any age - NCT07197944RecruitingPhase 3
Glepaglutide for short bowel syndrome
This trial tests a new medication called glepaglutide to see if it can help people with short bowel syndrome (SBS) who need IV nutrition or fluids at least 3 days a week. The goal is to reduce or even stop the need for these IV treatments.
St Louis, MissouriAges 18–90 - NCT05795465RecruitingPhase 2
Study drug for people with acute respiratory distress syndrome
This Phase 2 trial tests GEn-1124 to see if it can improve outcomes in people with acute respiratory distress syndrome (ARDS). You may be eligible if the study drug can be started very soon after ARDS is diagnosed and if you meet the safety and health requirements.
St Louis, MissouriAges 18–85 - NCT04742634RecruitingPhase 1/Phase 2
Preemptive drug DEC-C after transplant to reduce hidden cancer
This trial tests whether giving DEC-C (a decitabine-based treatment) soon after an allogeneic transplant can improve outcomes for MDS patients who still have “measurable residual disease” (hidden leftover disease) detectable by a genetic test. It also compares this approach to standard observation if the hidden disease is not detected or if the higher-risk safety checks are not met.
St Louis, MissouriAges 18–75 - NCT00900198Recruiting
Give cancer tissue samples to help future cancer research
This study collects tissue or other cancer-related samples to help researchers better understand cancer and develop better tests or treatments. You can join if you are being evaluated for or treated for cancer, and you agree to let your samples be used for research.
St Louis, MissouriAges 2 months+ - NCT03128996RecruitingPhase 1/Phase 2
Bone marrow transplant with lighter chemo for non-cancer illnesses
This early-phase study tests a safer “lighter” conditioning chemo plan before a bone marrow transplant for people with non-cancer blood and immune disorders. It aims to reduce transplant risk while using donor marrow that does not match perfectly in the HLA type.
St Louis, MissouriAges 1 day–21 years - NCT06789913RecruitingPhase 2
Testing RLY-2608 for growth disorders linked to PIK3CA mutations
This trial tests a new medicine, RLY-2608, that targets the specific genetic change (PIK3CA mutation) causing overgrowth conditions. It aims to see if the drug can slow or stop the growth of affected tissues.
St Louis, MissouriAges 2 years+ - NCT05978141Recruiting
T-cell lymphoma registry study
This study creates a registry for people with certain T-cell or NK-cell lymphomas. It collects health information and tumor samples to learn more about these diseases and improve future treatments.
St Louis, MissouriAges Any age - NCT03452774Recruiting
AI matches your cancer tests to possible treatment trials
This trial uses an AI system to help match people with certain cancer types and specific tumor test results (like gene or protein markers) to relevant clinical trials. It may help you and your doctor find studies that fit your cancer biology faster.
St Louis, MissouriAges Any age - NCT01186913Enrolling by invitation
Natural history study for severe combined immune deficiency (SCID)
This study follows children and adults with SCID and related immune disorders to understand how the illness behaves over time. It also helps researchers learn which testing results and genetic types of SCID match different treatment plans.
St Louis, MissouriAges Any age - NCT00358943Recruiting
Gaucher disease registry and pregnancy tracking study
This study creates a large, long-term record of people with Gaucher disease and details about pregnancy outcomes. It helps researchers better understand Gaucher over a person’s life and during pregnancy.
St Louis, MissouriAges Any age - NCT02074839RecruitingPhase 1
Oral AG-120 for advanced blood cancers with an IDH1 mutation
This Phase 1 study tests an oral medicine called AG-120 in adults with advanced blood cancers that have a specific IDH1 mutation. It also looks at safety and how the treatment works, with frequent blood, urine, and bone marrow samples.
St Louis, MissouriAges 18 years+ - NCT03949855RecruitingPhase 2
Belimumab plus rituximab for primary membranous nephropathy
This study tests whether adding belimumab to rituximab helps people with primary membranous nephropathy (a kidney disease) that has the right blood test marker and specific protein levels. The goal is to improve kidney outcomes and reduce disease activity while keeping treatment safe.
St Louis, MissouriAges 18–75 - NCT02604563Recruiting
Aging, blood changes, and health in older adults
This study examines why some older adults develop changes in their blood cells that may affect their health. Researchers will look for links between these blood changes, aging, and common health problems in older people.
St Louis, MissouriAges 50 years+ - NCT06247787RecruitingPhase 1
Imetelstat plus chemo for relapsed leukemia in kids
This trial tests a new drug called imetelstat combined with two chemotherapy drugs (fludarabine and cytarabine) for children and teens with acute myeloid leukemia (AML), myelodysplastic syndrome (MDS), or juvenile myelomonocytic leukemia (JMML) that has come back or not responded to treatment. The goal is to find the safest dose of imetelstat and see if it helps control the cancer.
St Louis, MissouriAges 1–18 - NCT02852031Recruiting
Care program for newborns needing the Norwood procedure
This trial focuses on improving care for babies born with certain complex heart conditions where only one pumping chamber works. It is meant for babies (including unborn babies) who are planned to have the Norwood procedure, which is a common early surgery.
St Louis, MissouriAges Up to 1.3 years - NCT07589634RecruitingPhase 2
Tocilizumab to prevent side effects from ramantamig in multiple myeloma
This study tests whether a drug called tocilizumab can prevent serious side effects (cytokine release syndrome) when combined with a new cancer drug called ramantamig. You'll be eligible if you have multiple myeloma that has come back or stopped responding to prior treatments.
St Louis, MissouriAges 18 years+ - NCT06008808RecruitingPhase 1
Ruxolitinib and abatacept to prevent GVHD after haplo transplant
This trial tests whether a drug called ruxolitinib, with or without another drug called abatacept, can prevent graft-versus-host disease and cytokine release syndrome after a half-matched stem cell transplant from a family donor. It's for people with certain blood cancers who are getting this type of transplant.
St Louis, MissouriAges 18 years+ - NCT07625579Recruiting
Collaboration for Down Syndrome Progress Research Study
This research study aims to better understand Down syndrome by collecting health information, family history, and sometimes brain imaging or sleep data from children and adults with Down syndrome and their families. The goal is to advance knowledge that could improve health and development for people with Down syndrome.
St Louis, MissouriAges Any age - NCT06112418Recruiting
Personalized vs standard care to prevent heart attacks
This trial compares two ways to prevent heart attacks and strokes: one uses a special heart CT scan to guide care, the other uses standard risk factors like blood pressure and cholesterol. You may be eligible if you are older (men over 55, women over 65) and have diabetes, prediabetes, or metabolic syndrome.
St Louis, MissouriAges 55 years+
Hear when a new Down Syndrome trial opens near St. Louis, MO
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Down Syndrome trials in other cities
Where these studies are running near St. Louis
Institutions with a site for the recruiting down syndrome studies listed above.
- Washington University in St. Louis · 14 studies
- Siteman Cancer Center · 2 studies
- Siteman Cancer Center at Saint Peters Hospital · 2 studies
- Siteman Cancer Center at West County Hospital · 2 studies
- SSM Health Cardinal Glennon Children's Hospital · 2 studies
- Washington University School of Medicine in St. Louis · 2 studies
- Ascentage Investigative Site
- Cancer Care Center of O'Fallon
What taking part in a down syndrome 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.
Looking wider? See all recruiting down syndrome studies in Missouri.
Common questions
- Are there down syndrome clinical trials near St. Louis?
- Yes. We're currently tracking 57 recruiting down syndrome studies with a site near St. Louis, 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 down syndrome study near St. Louis?
- 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 St. Louis to take part?
- Not necessarily. These studies have a site near St. Louis, 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 down syndrome 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 down syndrome studies open near St. Louis regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.