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ClinicalTrials.gov public records Last synced Jul 22, 2026, 11:54 AM EDT

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Showing 1–24 of 45 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Hemoglobin S Clear all
Completed Phase 2 Interventional

A Study of Etavopivat in Patients With Thalassemia or Sickle Cell Disease

NCT04987489
View directory record Official record
Conditions
Sickle Cell Disease, Thalassemia
Interventions
Etavopivat tablets
Drug
Lead sponsor
Forma Therapeutics, Inc.
Industry
Eligibility
12 Years to 65 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
14
States / cities
Cerritos, California • Los Angeles, California • Oakland, California + 9 more
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Jul 22, 2026, 11:54 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Sickle Cell Disease and the Genomic and Gene Therapy Needs of Stakeholders

NCT04416178
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Not listed
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
13 Years and older
Enrollment
352 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Jul 22, 2026, 11:54 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Mobilization and Handling of Stem Cells for Transplant From Healthy Volunteers With Sickle Cell Trait

NCT00005782
View directory record Official record
Conditions
Sickle Cell Trait
Interventions
Granulocyte colony-stimulating factor, Leukapheresis
Drug · Procedure
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
Not listed
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 22, 2026, 11:54 AM EDT
Completed No phase listed Observational

Diabetic Retinopathy and Sickle Trait

NCT00720317
View directory record Official record
Conditions
Diabetic Retinopathy, Sickle Cell Trait
Interventions
Not listed
Lead sponsor
Medical University of South Carolina
Other
Eligibility
Not listed
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Sep 15, 2010 · Synced Jul 22, 2026, 11:54 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

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

NCT05904093
View directory record Official record
Conditions
Sickle Cell Disease, Hb-SS Disease, Hemoglobin S, Disease Sickle Cell Anemia, Sickle Cell Disorders, Hemoglobin Beta Thalassemia Disease
Interventions
Fostamatinib
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Jul 22, 2026, 11:54 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Sickle Cell Trait in Football Players

NCT01891877
View directory record Official record
Conditions
Sickle Cell Trait
Interventions
Not listed
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older · Male only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Oct 19, 2014 · Synced Jul 22, 2026, 11:54 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

At-Home Research Study for Patients With Autoimmune, Inflammatory, Genetic, Hematological, Infectious, Neurological, CNS, Oncological, Respiratory, Metabolic Conditions

NCT01931644
View directory record Official record
Conditions
All Diagnosed Health Conditions, ADD/ADHD, Alopecia Areata, Ankylosing Spondylitis, Asthma, Atopic Dermatitis Eczema, Beta Thalassemia, Bipolar Disorder, Breast Cancer, Celiac Disease, Cervical Cancer, Chronic Inflammatory Demyelinating Polyneuropathy, Chronic Kidney Diseases, Chronic Obstructive Pulmonary Disease, Colon Cancer, Colorectal Cancer, Crohn's Disease, Cystic Fibrosis, Depression, Diabetes Mellitus, Duchenne Muscular Dystrophy, Endometriosis, Epilepsy, Facioscapulohumeral Muscular Dystrophy, G6PD Deficiency, General Anxiety Disorder, Hepatitis B, Hereditary Hemorrhagic Telangiectasia, HIV/AIDS, Human Papilloma Virus, Huntington's Disease, Idiopathic Thrombocytopenic Purpura, Insomnia, Kidney Cancer, Leukemia, Lung Cancer, Lupus Nephritis, Lymphoma, Melanoma, Multiple Myeloma, Multiple Sclerosis, Myositis, Myotonic Dystrophy, Ovarian Cancer, Pancreatic Cancer, Parkinson's Disease, Polycystic Kidney Diseases, Prostate Cancer, Psoriasis, Psoriatic Arthritis, Rosacea, Scleroderma, Sickle Cell Anemia, Sickle Cell Trait, Sjogren's Syndrome, Skin Cancer, Spinal Muscular Atrophy, Systemic Lupus Erythematosus, Thrombotic Thrombocytopenic Purpura, Trisomy 21, Ulcerative Colitis
Interventions
Not listed
Lead sponsor
Sanguine Biosciences
Industry
Eligibility
18 Years to 100 Years
Enrollment
17,667 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 17, 2024 · Synced Jul 22, 2026, 11:54 AM EDT
Completed No phase listed Observational

Comparison of Two Methods of Transfusion for Stroke Prevention in Sickle Cell

NCT02561312
View directory record Official record
Conditions
Anemia, Sickle Cell, Sickling Disorder Due to Hemoglobin S
Interventions
Rapid manual partial exchange transfusion, Simple Transfusion
Other
Lead sponsor
Chattanooga-Hamilton County Hospital Authority
Other
Eligibility
3 Years to 25 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Chattanooga, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 26, 2018 · Synced Jul 22, 2026, 11:54 AM EDT
Completed Not applicable Interventional Results available

Evaluation of the AMICUS RBCx System in Sickle Cell Patients

NCT02372877
View directory record Official record
Conditions
Sickle Cell Anemia
Interventions
Amicus Red Cell Exchange in SCD patients
Device
Lead sponsor
Fenwal, Inc.
Industry
Eligibility
6 Years and older
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
6
States / cities
Phoenix, Arizona • Detroit, Michigan • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2022 · Synced Jul 22, 2026, 11:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Program to Increase Sickle Cell Trait Knowledge Among Parent of Young Children Identified in Newborn Screening

NCT03984500
View directory record Official record
Conditions
Sickle Cell Trait
Interventions
Education
Other
Lead sponsor
Susan Creary
Other
Eligibility
18 Years and older
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 20, 2022 · Synced Jul 22, 2026, 11:54 AM EDT
Terminated Phase 2 Interventional Results available

Trial of Oral Glutamine in Patients With Sickle Cell Anemia

NCT00131508
View directory record Official record
Conditions
Anemia, Sickle Cell
Interventions
Glutamine, Placebo
Drug
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
5 Years to 18 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 25, 2017 · Synced Jul 22, 2026, 11:54 AM EDT
Completed No phase listed Observational

Developing the Family Map: Looking at Communal Coping

NCT01633021
View directory record Official record
Conditions
Sickle Cell, Diabetes, Cancer, Cardiovascular Disease, Genetic Screening
Interventions
Not listed
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
1,061 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
3
States / cities
Bethesda, Maryland • Cincinnati, Ohio • Lewisburg, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Jul 22, 2026, 11:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Vascular Effects of Endothelium-Derived Versus Hemoglobin-Transported Nitric Oxide in Healthy Subjects

NCT00001963
View directory record Official record
Conditions
Diabetes Mellitus, Healthy, Hypercholesterolemia, Hypertension
Interventions
hemoglobin-transported nitric oxide
Procedure
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 22, 2026, 11:54 AM EDT
Completed Phase 2 Interventional

A Study of HQK-1001 in Patients With Sickle Cell Disease

NCT01322269
View directory record Official record
Conditions
Sickle Cell Disease, Sickle Cell Anemia, Sickle Cell Disorders, Hemoglobin S Disease, Sickling Disorder Due to Hemoglobin S
Interventions
HQK-1001
Drug
Lead sponsor
HemaQuest Pharmaceuticals Inc.
Industry
Eligibility
12 Years to 60 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
9
States / cities
Oakland, California • Miami, Florida • Augusta, Georgia + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 18, 2013 · Synced Jul 22, 2026, 11:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Exercise on Biomarkers in SCT

NCT04273022
View directory record Official record
Conditions
Sickle Cell Trait
Interventions
Exercise
Other
Lead sponsor
St. Louis University
Other
Eligibility
18 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 27, 2025 · Synced Jul 22, 2026, 11:54 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Sickle Cell Hemoglobinopathies and Bone Health

NCT02306993
View directory record Official record
Conditions
Sickle Cell Disease, Sickle Cell Trait
Interventions
Healthy volunteers without SCT, Healthy volunteers with SCT, Volunteers with SCD
Other
Lead sponsor
UConn Health
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2025
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 26, 2025 · Synced Jul 22, 2026, 11:54 AM EDT
Completed No phase listed Observational

Collection and Storage of Umbilical Cord Stem Cells for Treatment of Sickle Cell Disease

NCT00012545
View directory record Official record
Conditions
Sickle Cell Disease, Sickle Cell Trait
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 45 Years
Enrollment
307 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Jul 22, 2026, 11:54 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Sickle Cell Kidney Biorepository

NCT07064174
View directory record Official record
Conditions
Sickle Cell Trait, Sickle Cell Disease (SCD), Chronic Kidney Disease
Interventions
Not listed
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2049
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Jul 22, 2026, 11:54 AM EDT
Completed Phase 2 Interventional Results available

Pharmacokinetics and Pharmacodynamics Study of SEG101 (Crizanlizumab) in Sickle Cell Disease (SCD) Patients With Vaso- Occlusive Crisis (VOC)

NCT03264989
View directory record Official record
Conditions
Sickle Cell Disease (SCD)
Interventions
crizanlizumab
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
16 Years to 70 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
12
States / cities
Orange, Florida • Tampa, Florida • Atlanta, Georgia + 9 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Jul 22, 2026, 11:54 AM EDT
Active, not recruiting Phase 3 Interventional

A Study of Etavopivat in Adults and Adolescents With Sickle Cell Disease (HIBISCUS)

NCT04624659
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Etavopivat Tablets Low dose, Etavopivat Tablets High dose, Placebo Tablets, Etavopivat Tablets
Drug
Lead sponsor
Forma Therapeutics, Inc.
Industry
Eligibility
12 Years to 65 Years
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
63
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 47 more
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced Jul 22, 2026, 11:54 AM EDT
Recruiting Phase 1 Interventional

131I-apamistamab-based Conditioning for Hematopoietic Stem Cell Transplant (HSCT) in Advanced Sickle Cell Disease (SCD)

NCT07015684
View directory record Official record
Conditions
Sickling Disorder Due to Hemoglobin S
Interventions
131I-apamistmab, Sirolimus, Campath, Total Body Irradiation, Exchange Transfusion, Planar gamma imaging
Drug · Radiation · Procedure
Lead sponsor
Columbia University
Other
Eligibility
12 Years to 50 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Jul 22, 2026, 11:54 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
315 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
14
States / cities
Birmingham, Alabama • Orange, California • Washington D.C., District of Columbia + 11 more
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 22, 2026, 11:54 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

The Sequestration of Holistic Stress Management Techniques for Adults

NCT06098755
View directory record Official record
Conditions
Stress, Job, PTSD, Hypervigilance, Hyperthyroidism, Migraine, Migraine With Aura, Immunodeficiency, Sickle Cell Trait, Sickle Cell Disease, Anemia, Sickle Cell, Anemia, Fatigue, Anxiety, Depression, Flat Feet, Lordosis, TBI (Traumatic Brain Injury), Rheumatoid Arthritis, Arthritis, Masturbation, Priapism, Erectile Dysfunction, Flight Reaction, Hypertension, Sexual Arousal Disorder, Hemorrhoids, Fibroid
Interventions
Holistic Medicine (HM)
Behavioral
Lead sponsor
Goddess Zena I. Jones
Other
Eligibility
22 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Anchorage, Alaska
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Jul 22, 2026, 11:54 AM EDT
Enrolling by invitation No phase listed Observational

A Long-Term Follow-Up Study of Participants With Sickle Cell Disease or Transfusion Dependent β-Thalassemia Who Received EDIT-301

NCT06363760
View directory record Official record
Conditions
Sickle Cell Disease, Transfusion-dependent Beta-Thalassemia, Hemoglobinopathies
Interventions
Safety and efficacy assessments
Other
Lead sponsor
Editas Medicine, Inc.
Industry
Eligibility
12 Years to 50 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2040
U.S. locations
16
States / cities
Oakland, California • Aurora, Colorado • New Haven, Connecticut + 12 more
Source: ClinicalTrials.gov public record
Updated Apr 1, 2025 · Synced Jul 22, 2026, 11:54 AM EDT