Clinical trials
Sickle Cell clinical trials
Below are recruiting sickle cell clinical trials, each written for real people, not researchers. We’re tracking 180 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04657822RecruitingPhase 4
Crizanlizumab rollover study for people with sickle cell disease
This study lets people with sickle cell disease who already finished a Novartis crizanlizumab trial continue treatment under a rollover plan. It’s designed for participants who benefited from crizanlizumab and completed the earlier study schedule without major ongoing side effects.
Birmingham, AlabamaAges 6 months–100 years - NCT06735625Recruiting
AHSP as a biomarker for sickle cell disease
This study looks at a substance in the blood called AHSP to see if it can help track sickle cell disease. It compares people with sickle cell disease (SS or Sβ0 type) to people without it, to better understand the condition.
Saint-DenisAges 3 years+ - NCT06363760Enrolling by invitation
Long-term follow-up after EDIT-301 gene therapy
This long-term follow-up study monitors people with sickle cell disease or transfusion-dependent beta-thalassemia who have already received the gene-editing therapy EDIT-301. It helps researchers understand how safe and effective the treatment is over time.
Oakland, CaliforniaAges 12–50 - NCT06823219Recruiting
Long-term endurance training for sickle cell disease
This study tests whether a long-term endurance exercise program can improve physical fitness, reduce complications, and enhance quality of life for people with sickle cell disease. It is designed for patients whose condition is stable but who have had at least one pain crisis in the last three years.
CréteilAges 15 years+ - NCT04156893RecruitingPhase 1/Phase 2
RH-matched blood transfusions for sickle cell patients
This study tests whether giving red blood cells matched to your child’s RH (a blood marker) can improve safety and fit for people with sickle cell disease who need regular transfusions. It may help reduce mismatches by using blood units selected to match the child’s blood type more closely.
Philadelphia, PennsylvaniaAges 6 months+ - 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 - NCT07177300RecruitingPhase 4
Hydroxyurea for sickle cell disease in children
This trial tests different ways to start hydroxyurea for children with sickle cell anemia. The goal is to find the safest and most effective approach to help manage symptoms and prevent complications.
Cincinnati, OhioAges 6 months+ - NCT04008368RecruitingPhase 1/Phase 2
Second stem cell transplant for sickle cell with declining donor cells
This Phase 1/2 study tests whether repeating a stem cell transplant can help people with sickle cell disease (SCD) whose donor cells are no longer holding strong. It may help restore healthier blood cell production and reduce symptoms such as pain crises and severe anemia.
Bethesda, MarylandAges 2–80 - NCT06031714Recruiting
Fetal cells in women with skin ulcers
This study looks at fetal cells that stay in a woman's body after pregnancy to see if they play a role in chronic skin ulcers. It includes women who have had a baby and have a venous, diabetic, sickle cell, or mixed ulcer, as well as healthy women for comparison.
Paris, Île-de-France RegionAges Any age - NCT06250595Recruiting
European rare blood disorder registry
This study is building a registry of people with rare blood diseases. By joining, you help doctors learn more about these conditions and improve future care.
Barcelona, CataloniaAges Up to 100 years - NCT06301893Recruiting
Sickle cell surveillance study in Uganda
This study collects blood samples from up to 1 million people in Uganda to learn more about sickle cell disease. It helps doctors understand how common it is and how to better care for those affected.
KampalaAges Up to 1 year - NCT06442761RecruitingPhase 1
Collecting stem cells for gene therapy in sickle cell disease
This study tests a new drug called motixafortide to help collect your own blood stem cells for future gene therapy. It is for adults with severe sickle cell disease who are willing to donate their stem cells and meet certain health requirements.
Birmingham, AlabamaAges 18 years+ - NCT06872333RecruitingPhase 2
Stem cell transplant from a matched sibling for blood disorders
This trial tests whether a stem cell transplant from a fully matched sibling donor can help people with serious blood disorders like sickle cell disease or thalassemia. It aims to replace the faulty blood system with a healthy one from the donor.
Minneapolis, MinnesotaAges Up to 55 years - NCT06689800Recruiting
Family communication tool for kids getting transplant or cell therapy
This study looks at a family communication tool for children and teens getting stem cell transplants or cellular therapy. It helps families talk about treatment together.
St Louis, MissouriAges 8 years+ - NCT04099966RecruitingPhase 2
Stem cell transplant to treat high-risk blood cancers
This trial tests a specialized donor stem cell transplant to treat high-risk problems in the blood and bone marrow, including some cancers and non-cancers. It may help by using donor immune cells designed to better control the disease after transplant.
Valhalla, New YorkAges 1 day–30 years - NCT05777993Enrolling by invitationPhase 4
Continued access to mitapivat for prior study participants
This study provides continued access to the drug mitapivat for people who have already been in a mitapativ study and are benefiting from it.
Anderlecht, Brussels CapitalAges 18 years+ - NCT07753681Recruiting
Chronic disease care in Zambia
This study helps improve care for people with long-term illnesses like diabetes or high blood pressure in Zambia. It aims to make sure you get regular check-ups and support.
Lusaka, Lusaka ProvinceAges Any age - NCT05153967Recruiting
Study late effects after sickle cell curative treatments
This study looks at long-term health effects after curative treatments for sickle cell disease, such as bone marrow transplant. Your participation helps researchers understand what changes over time after treatment, and what might need monitoring or care.
Washington D.C., District of ColumbiaAges 4–65 - 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.
New Haven, ConnecticutAges 1 day–21 years - NCT03937817Recruiting
Donate samples to study globin gene variants
This study collects common body samples to learn how different globin gene variants work and how they relate to health. Your samples may also be used later for new research, including genetic testing.
Bethesda, MarylandAges 18–70 - NCT03976180Recruiting
High-flow oxygen for painful sickle cell episodes
This trial tests whether giving high-flow oxygen can help treat a painful sickle cell “vaso-occlusive crisis” (VOC) and lower the risk of a serious lung complication. You may be eligible if you’re an adult with sickle cell disease experiencing an opioid-requiring pain flare and have higher risk for lung trouble.
CréteilAges 18 years+ - NCT05640271RecruitingPhase 2
Tocilizumab for acute chest syndrome in sickle cell
This trial studies tocilizumab (a medicine that calms inflammation) to treat acute chest syndrome in people with sickle cell disease. It may help improve symptoms and recovery by targeting key immune signals involved in this complication.
Chicago, IllinoisAges 12 years+ - NCT04157179Recruiting
MRI study of brain oxygen use in children and adults
This study uses an MRI scan to measure how your brain uses oxygen. It includes healthy participants and people with sickle cell disease or who previously needed ECMO, which may help researchers understand brain oxygen problems and how to monitor them.
St Louis, MissouriAges 3–50 - NCT04398628Recruiting
Study of non-cancer blood disorders in people with bleeding or clotting
This study follows people with inherited or acquired non-cancer blood disorders to better understand symptoms, causes, and how different treatments work over time. You may be placed into a disorder-specific group, depending on your diagnosis and testing results.
Phoenix, ArizonaAges Any age
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Common questions
- Are there clinical trials for sickle cell?
- Yes. Clin2 currently lists 180 recruiting sickle cell 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 sickle cell 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 sickle cell 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.