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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Sickle Red Blood Cell Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Fresh Versus Old Red Blood Cells for Transfusion

NCT01319552
View directory record Official record
Conditions
Iron, Abnormal Blood Level, Other Abnormal Blood Chemistry
Interventions
Fresh transfusion, Old transfusion
Procedure
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 1, 2015 · Synced Sep 17, 2026, 4:08 AM EDT
Recruiting Phase 3 Interventional

A Study to Investigate the Efficacy and Safety of Crizanlizumab (5 mg/kg) Compared With Placebo in Adolescent and Adult Sickle Cell Disease Patients Who Experience Frequent Vaso-Occlusive Crises (SPARKLE)

NCT06439082
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Crizanlizumab, Placebo
Biological · Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
12 Years to 100 Years
Enrollment
354 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
17
States / cities
Birmingham, Alabama • Orange, California • Washington D.C., District of Columbia + 13 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Sep 17, 2026, 4:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Multi-Center Study of Iron Overload: Pilot Study

NCT01114776
View directory record Official record
Conditions
Sickle Cell Disease, Thalassemia, Diamond-Blackfan Anemia
Interventions
Not listed
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
16 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Sep 23, 2020 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Age of Blood in Sickle Cell Transfusion

NCT03704922
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Transfusion
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
16 Years to 60 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
3
States / cities
Atlanta, Georgia • Chapel Hill, North Carolina • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Nov 18, 2024 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Phase 2 Interventional

Allogeneic Bone Marrow Transplantation for the Treatment of Genetic Disorders of Erythropoiesis

NCT00578435
View directory record Official record
Conditions
Genetic Disorders, Sickle Cell Anemia
Interventions
Busulfan, Cyclophosphamide, BMD
Procedure
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
1 Year and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1994 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 11, 2008 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Not applicable Interventional

Study of Allogeneic Bone Marrow Transplantation Using Matched, Related Donors in Patients With Nonmalignant Hematologic Disorders

NCT00005893
View directory record Official record
Conditions
Neutropenia, Sickle Cell Anemia, Thalassemia Major, Red-Cell Aplasia, Pure
Interventions
anti-thymocyte globulin, busulfan, cyclophosphamide, Bone marrow transplantation
Drug · Procedure
Lead sponsor
Fairview University Medical Center
Other
Eligibility
0 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2000
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 17, 2026, 4:08 AM EDT
Active, not recruiting Phase 3 Interventional Results available

Study of Two Doses of Crizanlizumab Versus Placebo in Adolescent and Adult Sickle Cell Disease Patients

NCT03814746
View directory record Official record
Conditions
Sickle Cell Disease (SCD)
Interventions
Crizanlizumab (SEG101), Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
12 Years to 100 Years
Enrollment
254 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
5
States / cities
Atlanta, Georgia • Boston, Massachusetts • Charlotte, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 13, 2026 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Not applicable Interventional Results available

Evaluation of Spectra Optia Red Blood Cell Exchange in Sickle Cell Patients

NCT01736657
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Red blood cell exchange in sickle cell
Device
Lead sponsor
Terumo BCT
Industry
Eligibility
12 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
5
States / cities
Birmingham, Alabama • Oakland, California • Aurora, Colorado + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2014 · Synced Sep 17, 2026, 4:08 AM EDT
Withdrawn Phase 1Phase 2 Interventional

Phase I/II Pilot Study of Mixed Chimerism to Treat Hemoglobinopathies

NCT01419704
View directory record Official record
Conditions
Anemia, Sickle Cell, Complex and Transfusion-dependent Hemoglobinopathies, Thalassemia, Diamond-Blackfan Anemia, Bone Marrow Failure Syndromes, Alpha-Thalassemia, Beta-Thalassemia
Interventions
Enriched Hematopoetic Stem Cell Infusion
Biological
Lead sponsor
Talaris Therapeutics Inc.
Industry
Eligibility
Up to 45 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
3
States / cities
Chicago, Illinois • Louisville, Kentucky • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Early Phase 1 Interventional Results available

RHD Genotype Matched Red Cells for Anti-D

NCT04156906
View directory record Official record
Conditions
Sickle Cell Disease, Anti-D Antibodies
Interventions
D+ RH genotype matched red cell units for transfusion
Biological
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
8 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 1, 2025 · Synced Sep 17, 2026, 4:08 AM EDT
Terminated Phase 2 Interventional Results available

The Impact of Oxidative Stress on Erythrocyte Biology

NCT04028700
View directory record Official record
Conditions
Sickle Cell Disease Without Crisis
Interventions
G6PD Deficient Red Blood Cell Transfusion, Non-G6PD deficient Red Blood Cell Transfusion
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 60 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 2, 2025 · Synced Sep 17, 2026, 4:08 AM EDT
Terminated Not applicable Interventional

Hematopoietic Stem Cell Transplant for High Risk Hemoglobinopathies

NCT02179359
View directory record Official record
Conditions
Sickle Cell Disease, Transfusion Dependent Alpha- or Beta- Thalassemia, Diamond Blackfan Anemia, Paroxysmal Nocturnal Hemoglobinuria, Glanzmann Thrombasthenia, Severe Congenital Neutropenia, Shwachman-Diamond Syndrome, Non-Malignant Hematologic Disorders
Interventions
Reduced Toxicity Ablative Regimen, Reduced Intensity Preparative Regimen, Myeloablative Preparative Regimen
Drug
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
Up to 55 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2024
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 2, 2025 · Synced Sep 17, 2026, 4:08 AM EDT
Active, not recruiting Phase 3 Interventional

Sickle Cell Disease and CardiovAscular Risk - Red Cell Exchange Trial (SCD-CARRE)

NCT04084080
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Red Blood Cell, Standard of care
Biological · Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
173 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
20
States / cities
Tuscaloosa, Alabama • Oakland, California • Washington D.C., District of Columbia + 15 more
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Sep 17, 2026, 4:08 AM EDT
Recruiting Phase 1Phase 2 Interventional

T-Cell Depleted Alternative Donor Bone Marrow Transplant for Sickle Cell Disease (SCD) and Other Anemias

NCT03653338
View directory record Official record
Conditions
Sickle Cell Anemia, Beta-thalassemia Major, Diamond-blackfan Anemia
Interventions
CD3/CD19 depleted leukocytes, CD45RA depleted leukocytes, Hydroxyurea, Rituximab, Alemtuzumab, Fludarabine, Thiotepa
Biological · Drug
Lead sponsor
Paul Szabolcs
Other
Eligibility
5 Years to 40 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 17, 2026, 4:08 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Blood Sampling for Research Related to Sickle Cell Disease

NCT00542230
View directory record Official record
Conditions
Sickle Cell Trait, Sickle Cell Disease, Sickle Cell Anemia
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 100 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Sep 17, 2026, 4:08 AM EDT
Terminated Phase 2 Interventional Results available

Fludarabine Phosphate, Cyclophosphamide, Total Body Irradiation, and Donor Stem Cell Transplant in Treating Patients With Blood Cancer

NCT03333486
View directory record Official record
Conditions
Accelerated Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive, Acute Leukemia in Remission, Acute Lymphoblastic Leukemia, Acute Myeloid Leukemia, Acute Myeloid Leukemia With FLT3/ITD Mutation, Acute Myeloid Leukemia With Gene Mutations, Aplastic Anemia, B-Cell Non-Hodgkin Lymphoma, CD40 Ligand Deficiency, Chronic Granulomatous Disease, Chronic Leukemia in Remission, Chronic Lymphocytic Leukemia, Chronic Myelogenous Leukemia, BCR-ABL1 Positive, Chronic Myelomonocytic Leukemia, Chronic Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive, Congenital Amegakaryocytic Thrombocytopenia, Congenital Neutropenia, Congenital Pure Red Cell Aplasia, Glanzmann Thrombasthenia, Immunodeficiency Syndrome, Myelodysplastic Syndrome, Myelofibrosis, Myeloproliferative Neoplasm, Paroxysmal Nocturnal Hemoglobinuria, Plasma Cell Myeloma, Polycythemia Vera, Recurrent Non-Hodgkin Lymphoma, Refractory Non-Hodgkin Lymphoma, Secondary Acute Myeloid Leukemia, Secondary Myelodysplastic Syndrome, Severe Aplastic Anemia, Shwachman-Diamond Syndrome, Sickle Cell Disease, T-Cell Non-Hodgkin Lymphoma, Thalassemia, Waldenstrom Macroglobulinemia, Wiskott-Aldrich Syndrome
Interventions
Cyclophosphamide, Fludarabine Phosphate, Laboratory Biomarker Analysis, Peripheral Blood Stem Cell Transplantation, Total-Body Irradiation
Drug · Other · Procedure + 1 more
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
1 Year to 75 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jul 3, 2025 · Synced Sep 17, 2026, 4:08 AM EDT
Recruiting Early Phase 1 Interventional

Determination of Red Cell Survival in Sickle Cell Disease and Other Hemoglobinopathies Using Biotin Labeling

NCT06313398
View directory record Official record
Conditions
Sickle Cell Disease, Thalassemia, Hemoglobinopathy
Interventions
Biotin-labeled red blood cells
Biological
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Phase 1 Interventional

Bone Marrow Transplant With Abatacept for Non-Malignant Diseases

NCT01917708
View directory record Official record
Conditions
Hurler Syndrome, Fanconi Anemia, Glanzmann Thrombasthenia, Wiskott-Aldrich Syndrome, Chronic Granulomatous Disease, Severe Congenital Neutropenia, Leukocyte Adhesion Deficiency, Shwachman-Diamond Syndrome, Diamond-Blackfan Anemia, Dyskeratosis-congenita, Chediak-Higashi Syndrome, Severe Aplastic Anemia, Thalassemia Major, Hemophagocytic Lymphohistiocytosis, Sickle Cell Disease
Interventions
Abatacept
Drug
Lead sponsor
Emory University
Other
Eligibility
Up to 21 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 25, 2019 · Synced Sep 17, 2026, 4:08 AM EDT
Terminated Phase 3 Interventional Results available

A Study of a Single Dose of Inclacumab to Reduce Re-admission in Participants With Sickle Cell Disease and Recurrent Vaso-occlusive Crises

NCT04927247
View directory record Official record
Conditions
Sickle Cell Disease, Vaso-occlusive Crisis, Vaso-occlusive Pain Episode in Sickle Cell Disease
Interventions
Inclacumab, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
12 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
17
States / cities
Mobile, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 11 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2024 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Phase 2 Interventional Results available

Allogeneic Mixed Chimerism Stem Cell Transplant Using Campath for Hemoglobinopathies & Bone Marrow Failure Syndromes

NCT00004143
View directory record Official record
Conditions
Sickle Cell Anemia, Severe Aplastic Anemia, Paroxysmal Nocturnal Hemoglobinuria (PNH), Pure Red Cell Aplasia
Interventions
Campath, Chemo and/or TBI Allo SCT
Drug
Lead sponsor
David Rizzieri, MD
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2009
U.S. locations
2
States / cities
Orlando, Florida • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 4, 2014 · Synced Sep 17, 2026, 4:08 AM EDT
Recruiting Phase 2 Interventional

AlloSCT for Malignant and Non-malignant Hematologic Diseases Utilizing Alpha/Beta T Cell and CD19+ B Cell Depletion

NCT04099966
View directory record Official record
Conditions
Acute Leukemia, Severe Aplastic Anemia, Non-hodgkin Lymphoma, Hodgkin Lymphoma, Kostmann, Diamond Blackfan Anemia, Amegakaryocytic Thrombocytopenia, Sickle Cell Disease, Beta-Thalassemia
Interventions
alpha beta depletion
Drug
Lead sponsor
Mitchell Cairo
Other
Eligibility
1 Day to 30 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Valhalla, New York
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced Sep 17, 2026, 4:08 AM EDT
Terminated Not applicable Interventional Results available

Alefacept and Allogeneic Hematopoietic Stem Cell Transplantation

NCT01319851
View directory record Official record
Conditions
Thalassemia, Sickle Cell Disease, Glanzmann Thrombasthenia, Wiskott-Aldrich Syndrome, Chronic-granulomatous Disease, Severe Congenital Neutropenia, Leukocyte Adhesion Deficiency, Schwachman-Diamond Syndrome, Diamond-Blackfan Anemia, Fanconi Anemia, Dyskeratosis-congenita, Chediak-Higashi Syndrome, Severe Aplastic Anemia
Interventions
Alefacept
Drug
Lead sponsor
Emory University
Other
Eligibility
Up to 21 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 26, 2017 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Phase 3 Interventional Results available

A Study to Assess the Safety and Efficacy of Inclacumab in Participants With Sickle Cell Disease Experiencing Vaso-occlusive Crises

NCT04935879
View directory record Official record
Conditions
Sickle Cell Disease, Vaso-occlusive Pain Episode in Sickle Cell Disease, Vaso-occlusive Crisis
Interventions
Inclacumab, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
12 Years and older
Enrollment
241 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
22
States / cities
Mobile, Alabama • Little Rock, Arkansas • Orange, California + 7 more
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 17, 2026, 4:08 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Genotype -Phenotype Correlation of PKLR Variants With Pyruvate Kinase, 2,3-Diphosphglycerate and Adenosine Triphosphate Activities in Red Blood Cells of People With Sickle Cell Disease

NCT03685721
View directory record Official record
Conditions
Sickle Cell, PKLR Variants, Adenosine Triphosphate Activities
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 80 Years
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 16, 2026 · Synced Sep 17, 2026, 4:08 AM EDT