Sickle Cell Disease Clinical Trials

146 recruitingLast updated: June 17, 2026

There are 146 actively recruiting sickle cell disease clinical trials across 41 countries. Studies span Not Applicable, Phase 2, Phase 1, Phase 3, Phase 4, Early Phase 1. Top locations include Chicago, Illinois, United States, Memphis, Tennessee, United States, Atlanta, Georgia, United States. Updated daily from ClinicalTrials.gov.


Sickle Cell Disease Trials at a Glance

146 actively recruiting trials for sickle cell disease are listed on ClinicalTrialsFinder across 6 cities in 41 countries. The largest study group is Not Applicable with 46 trials, with the heaviest enrollment activity in Chicago, Memphis, and Atlanta. Lead sponsors running sickle cell disease studies include St. Jude Children's Research Hospital, Assistance Publique - Hôpitaux de Paris, and Children's Hospital Medical Center, Cincinnati.

Browse sickle cell disease trials by phase

Treatments under study

About Sickle Cell Disease Clinical Trials

Looking for clinical trials for Sickle Cell Disease? There are currently 140 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Sickle Cell Disease trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Sickle Cell Disease clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 146 trials

Recruiting
Phase 1Phase 2

Partial Stem Cell Transplant for Sickle Cell Disease From Matched Donors

Beta-ThalassemiaSickle Cell Disease
National Heart, Lung, and Blood Institute (NHLBI)90 enrolled1 locationNCT07599176
Recruiting

Uganda Sickle Surveillance Study (US-3)

Sickle Cell Disease
Children's Hospital Medical Center, Cincinnati1,000,000 enrolled4 locationsNCT06301893
Recruiting
Not Applicable

Empowering Adolescents and Young Adults With Sickle Cell Disease as Partners in Treatment Decision Making (EMPOWER-AYA)

Sickle Cell Disease
Nemours Children's Clinic68 enrolled1 locationNCT05383911
Recruiting

Collection of Human Biospecimens for Basic and Clinical Research Into Globin Variants

Sickle Cell DiseaseMalariaAlpha and Beta Thalassemia+1 more
National Institute of Allergy and Infectious Diseases (NIAID)300 enrolled1 locationNCT03937817
Recruiting
Phase 3

A Research Study Looking at Long-term Treatment With Etavopivat in People With Sickle Cell Disease or Thalassaemia

Sickle Cell DiseaseThalassemia
Novo Nordisk A/S480 enrolled105 locationsNCT06609226
Recruiting

Blood Sampling for Research Related to Sickle Cell Disease

Sickle Cell DiseaseSickle Cell TraitSickle Cell Anemia
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)250 enrolled1 locationNCT00542230
Recruiting

Investigation of the Genetics of Hematologic Diseases

Diamond-Blackfan AnemiaDyskeratosis CongenitaFanconi Anemia+10 more
St. Jude Children's Research Hospital1,716 enrolled1 locationNCT02720679
Recruiting
Phase 4

Rollover Study for Patients With Sickle Cell Disease Who Have Completed a Prior Novartis-Sponsored Crizanlizumab Study

Sickle Cell Disease
Novartis Pharmaceuticals130 enrolled31 locationsNCT04657822
Recruiting
Phase 1

A Phase 1b, Open-Label Study of DISC-3405 in Participants With Sickle Cell Disease (SCD)

Sickle Cell Disease
Disc Medicine, Inc24 enrolled7 locationsNCT07187973
Recruiting

Functional Ovarian Reserve in Sickle Cell Disease

Sickle Cell Disease
St. Jude Children's Research Hospital440 enrolled1 locationNCT07392216
Recruiting

Sickle Cell Clinical Research and Intervention Program

Sickle Cell Disease
St. Jude Children's Research Hospital10,000 enrolled6 locationsNCT02098863
Recruiting
Phase 1

SCD Stem Cell Mobilization and Apheresis Using Motixafortide

Sickle Cell Disease
St. Jude Children's Research Hospital15 enrolled3 locationsNCT06442761
Recruiting

Comparing the Effectiveness of Matched Related Donor Hematopoietic Stem Cell Transplantation to Disease Modifying Therapy in Pediatric Patients With Sickle Cell Disease

Sickle Cell Disease (SCD)
University of Rochester480 enrolled37 locationsNCT06941389
Recruiting
Phase 2

A Study of Immune Suppression Treatment for People With Sickle Cell Disease or β-Thalassemia Who Are Going to Receive an Allogeneic Hematopoietic Cell Transplantation (HCT)

Sickle Cell DiseaseThalassemiaThalassemia (beta)
Memorial Sloan Kettering Cancer Center24 enrolled6 locationsNCT05736419
Recruiting
Phase 1Phase 2

Ruxolitinib-Enhanced Haplo HCT for Children and Young Adults With Sickle Cell Disease

Sickle Cell DiseaseGraft FailureHematopoetic Stem Cell Transplant+2 more
Arkansas Children's Hospital Research Institute24 enrolled4 locationsNCT07252050
Recruiting
Not Applicable

Let's Get REAL: Family Health Communication Tool in Pediatric Stem Cell Transplant and Cellular Therapy

Solid TumorHematologic MalignancySickle Cell Disease+3 more
Washington University School of Medicine60 enrolled1 locationNCT06689800
Recruiting
Phase 1Phase 2

A Phase I/II Study of ITU512 in Healthy Participants and Patients With Sickle Cell Disease

Sickle Cell Disease
Novartis Pharmaceuticals161 enrolled5 locationsNCT06546670
Recruiting
Phase 2

Allo HSCT for High Risk Hemoglobinopathies

Sickle Cell DiseaseHemoglobinopathiesGraft Failure
Masonic Cancer Center, University of Minnesota62 enrolled1 locationNCT06872333
Recruiting
Phase 1

Study to Evaluate the Safety and Tolerability of Escalating Doses of Fostamatinib in Subjects With Stable Sickle Cell Disease

Sickle Cell DiseaseHb-SS DiseaseHemoglobin S+3 more
National Heart, Lung, and Blood Institute (NHLBI)25 enrolled1 locationNCT05904093
Recruiting
Phase 1Phase 2

Reduced Intensity Conditioning and Familial HLA-Mismatched BMT for Non-Malignant Disorders

HemoglobinopathiesBone Marrow Failure SyndromesMetabolic Disorders+3 more
Washington University School of Medicine29 enrolled4 locationsNCT03128996