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
- 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 - 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 - NCT05308264RecruitingPhase 1/Phase 2
R289 for lower-risk MDS that still needs blood support
This Phase 1/2 study tests R289 in adults with lower-risk myelodysplastic syndromes (MDS) whose disease keeps causing anemia and/or ongoing need for red blood cell transfusions. It may help reduce blood problems and treat MDS when standard options haven’t worked well enough or aren’t suitable.
St Louis, MissouriAges 18 years+ - NCT06529731RecruitingPhase 2
Interferon-Gamma and Donor Cells for Relapsed Leukemia After Transplant
This trial tests combining a protein called interferon-gamma with an infusion of donor white blood cells to treat AML or MDS that returned after a stem cell transplant. The goal is to see if this combination helps the donor cells attack the cancer more effectively.
St Louis, MissouriAges 18 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 - NCT05701917Recruiting
Clot-busting device versus blood thinners for leg clot
This study compares a clot-removal device (ClotTriever) plus standard care versus standard blood thinners alone for a deep vein clot in the leg. It aims to see which approach better improves leg symptoms and outcomes.
St Louis, MissouriAges 18 years+ - 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 - NCT05654922RecruitingPhase 3
Prevent lung transplant airways scarring with ARINA-1
This Phase 3 trial tests ARINA-1 to slow or prevent worsening lung transplant scarring in the breathing tubes (bronchiolitis obliterans). It may help people who are showing early decline in lung function but are not yet at advanced disease.
St Louis, MissouriAges 18–75 - NCT06994676RecruitingPhase 1
Study of CBX-250 for advanced myeloid leukemias
This study tests an experimental drug, CBX-250, for people with certain advanced blood cancers (like AML) that have not responded to standard treatments or have returned. The drug works only for people who have a specific genetic marker (HLA-A*02:01). The goal is to see if it is safe and how well it works.
St Louis, MissouriAges 12 years+ - 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.
St Louis, MissouriAges 18 years+ - 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 - 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 - NCT06538181RecruitingPhase 1
Testing pacritinib for VEXAS syndrome
This trial tests a new drug called pacritinib for people with VEXAS syndrome, a rare autoinflammatory condition. The goal is to see if pacritinib can help control symptoms like rashes, joint pain, and low blood counts.
St Louis, MissouriAges 18 years+ - NCT06577441RecruitingPhase 2
Adding enasidenib to usual care for higher-risk MDS with IDH2 mutation
This trial tests whether adding enasidenib (a targeted pill) to the standard chemotherapy (cedazuridine-decitabine) works better than the chemotherapy alone for people with higher-risk myelodysplastic syndrome (MDS) whose cells have a specific change in the IDH2 gene.
St Louis, MissouriAges 18 years+ - NCT05975671Recruiting
Survey in pediatric ICU to reduce upfront vancomycin use
This study is a survey and quality-improvement effort in participating children’s intensive care units. It aims to understand and change how doctors decide to start vancomycin (an antibiotic) when sepsis is suspected, to improve care and avoid unnecessary use.
St Louis, MissouriAges Any age - 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+ - NCT05702645Recruiting
Down syndrome long-term study after leukemia treatment
This study follows children and young adults with Down syndrome who have survived acute leukemia (ALL or AML) to learn about their longer-term health after treatment ends. It may help families and doctors understand what health problems to watch for and how to provide better follow-up care.
St Louis, MissouriAges 6–39 - NCT05219110Recruiting
More fluids for children sick with toxin E. coli
This study looks at whether giving extra (hyper) fluids early helps children with a high-risk E. coli stomach infection. The goal is to improve outcomes by supporting the kidneys during the illness.
St Louis, MissouriAges 9 months–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 - 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 - NCT05564390RecruitingPhase 2
MyeloMATCH screening to match you to AML or MDS treatment
This study screens people with newly suspected acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) to see which treatment approach fits best—either a specific study treatment or standard care. It may help by directing you to the right option and by sharing your blood/bone marrow samples for research.
St Louis, MissouriAges 18 years+ - 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 - NCT06420297Enrolling by invitationPhase 3
Carbetocin nasal spray for Prader-Willi syndrome eating behaviors (open-label extension)
This is a long-term follow-up study for people who completed a previous study of carbetocin nasal spray for hyperphagia (extreme hunger) in Prader-Willi syndrome. The trial gives everyone the study drug openly to see if it continues to help manage eating behaviors over a longer period.
St Louis, MissouriAges 5–30
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 · 18 studies
- Cancer Care Center of O'Fallon · 2 studies
- Missouri Baptist Medical Center · 2 studies
- Sainte Genevieve County Memorial Hospital · 2 studies
- Siteman Cancer Center · 2 studies
- HSHS St. Elizabeth's Hospital
- Massive Bio SYNERGY-AI site
- Mercy Hospital Saint Louis
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.