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ClinicalTrials.gov public records Last synced Oct 21, 2026, 3:02 PM EDT

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Showing 25–45 of 45 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Hemoglobin S Clear all
Active, not recruiting Phase 1Phase 2 Interventional

A Study Evaluating the Safety and Efficacy of EDIT-301 in Participants With Severe Sickle Cell Disease (RUBY)

NCT04853576
View directory record Official record
Conditions
Sickle Cell Disease, Hemoglobinopathies
Interventions
EDIT-301
Genetic
Lead sponsor
Editas Medicine, Inc.
Industry
Eligibility
12 Years to 50 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
21
States / cities
Oakland, California • Aurora, Colorado • New Haven, Connecticut + 15 more
Source: ClinicalTrials.gov public record
Updated Jan 31, 2025 · Synced Oct 21, 2026, 3:02 PM 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 6, 2026 · Synced Oct 21, 2026, 3:02 PM EDT
Completed No phase listed Observational

Venous Thrombosis Biomarkers in Sickle Cell Disease and Sickle Cell Trait

NCT04349189
View directory record Official record
Conditions
Sickle Cell Disease, Venous Thrombosis, Sickle Cell Trait, Hypercoagulable State, Venous Thromboembolism
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 80 Years
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 21, 2026, 3:02 PM 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 Oct 15, 2026 · Synced Oct 21, 2026, 3:02 PM 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 4, 2026 · Synced Oct 21, 2026, 3:02 PM 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 18, 2024 · Synced Oct 21, 2026, 3:02 PM EDT
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 16, 2025 · Synced Oct 21, 2026, 3:02 PM 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 Oct 2, 2026 · Synced Oct 21, 2026, 3:02 PM EDT
Terminated Phase 2 Interventional

Effects of HQK-1001 in Patients With Sickle Cell Disease

NCT01601340
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, Placebo
Drug
Lead sponsor
HemaQuest Pharmaceuticals Inc.
Industry
Eligibility
12 Years to 60 Years
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
11
States / cities
Mobile, Alabama • Oakland, California • Washington D.C., District of Columbia + 7 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2015 · Synced Oct 21, 2026, 3:02 PM 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 19, 2013 · Synced Oct 21, 2026, 3:02 PM 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 21, 2022 · Synced Oct 21, 2026, 3:02 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Achieving Understanding of the Natural History of Sickle Cell Trait (AUNT)

NCT06071377
View directory record Official record
Conditions
Sickle Cell Trait
Interventions
Biologic Specimen Collection
Other
Lead sponsor
National Alliance for Sickle Cell Centers
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
8
States / cities
Birmingham, Alabama • Wilmington, Delaware • Indianapolis, Indiana + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 21, 2026, 3:02 PM 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 9, 2024 · Synced Oct 21, 2026, 3:02 PM 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 13, 2026 · Synced Oct 21, 2026, 3:02 PM 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 Oct 16, 2026 · Synced Oct 21, 2026, 3:02 PM EDT
Terminated Phase 2 Interventional Results available

Hydroxyurea and Magnesium Pidolate to Treat People With Hemoglobin Sickle Cell Disease

NCT00532883
View directory record Official record
Conditions
Hemoglobin SC Disease
Interventions
Hydroxyurea, Magnesium Pidolate, Placebo Pills and Placebo Liquid
Drug · Other
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
5 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
19
States / cities
Birmingham, Alabama • Oakland, California • Sacramento, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jan 18, 2013 · Synced Oct 21, 2026, 3:02 PM 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 11, 2024 · Synced Oct 21, 2026, 3:02 PM 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 4, 2008 · Synced Oct 21, 2026, 3:02 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers Results available

Sickle Cell Trait and the Risk of Venous Thromboembolism

NCT01148940
View directory record Official record
Conditions
Thrombosis
Interventions
Not listed
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Dec 17, 2020 · Synced Oct 21, 2026, 3:02 PM EDT
Active, not recruiting Not applicable Interventional

CHOICES3: Sickle Cell Disease Parenting CHOICES

NCT05292781
View directory record Official record
Conditions
Sickle Cell Disease, Sickle Cell Trait
Interventions
CHOICES, eBook
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 45 Years
Enrollment
506 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Oct 21, 2026, 3:02 PM 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 4, 2008 · Synced Oct 21, 2026, 3:02 PM EDT