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ClinicalTrials.gov public records Last synced Oct 21, 2026, 2:23 PM EDT

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Showing 1–24 of 770 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Hb-SS Disease Clear all
Recruiting Not applicable Interventional

School Readiness Intervention for Preschool Children With Sickle Cell Disease

NCT06367192
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
The adapted Kids in Transition to School Intervention, Standard school resources
Behavioral
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
42 Months to 78 Months
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 24, 2026 · Synced Oct 21, 2026, 2:23 PM EDT
No Longer Available No phase listed Expanded access

Expanded Access to Voxelotor for Patients With Sickle Cell Disease Who Have No Alternative Treatment Options

NCT03943615
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Voxelotor
Drug
Lead sponsor
Pfizer
Industry
Eligibility
12 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
18
States / cities
Birmingham, Alabama • Mobile, Alabama • Atlanta, Georgia + 15 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2023 · Synced Oct 21, 2026, 2:23 PM 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 3, 2025 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Phase 2 Interventional Results available

A Multi-Center Study of Riociguat in Patients With Sickle Cell Diseases

NCT02633397
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Riociguat, Placebo
Drug
Lead sponsor
Mark Gladwin
Other
Eligibility
18 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
20
States / cities
Oakland, California • Washington D.C., District of Columbia • Miami, Florida + 17 more
Source: ClinicalTrials.gov public record
Updated Jul 19, 2023 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Phase 1 Interventional

Nitric Oxide and Transfusion Therapy for Sickle Cell Patients With Pulmonary Hypertension

NCT00023296
View directory record Official record
Conditions
Sickle Cell Anemia, Pulmonary Hypertension
Interventions
Nitric Oxide, INO Pulse - NO Delivery System
Drug · Device
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2015
U.S. locations
2
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Oct 21, 2026, 2:23 PM EDT
Enrolling by invitation No phase listed Observational

Long-term Follow-up of Subjects with Sickle Cell Disease Treated with Ex Vivo Gene Therapy

NCT04628585
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Safety and efficacy assessments
Other
Lead sponsor
Genetix Biotherapeutics Inc.
Industry
Eligibility
2 Years to 53 Years
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2038
U.S. locations
15
States / cities
Birmingham, Alabama • Oakland, California • Atlanta, Georgia + 12 more
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Oct 21, 2026, 2:23 PM EDT
Completed No phase listed Observational

Study of Melphalan Drug Exposure in Pediatric Hematopoietic Stem Cell Transplant Patients

NCT03609827
View directory record Official record
Conditions
Hematologic Malignancies, Nonmalignant Diseases, Immunodeficiencies, Hemoglobinopathies, Genetic Inborn Errors of Metabolism, Fanconi's Anemia, Thalassemia, Sickle Cell Disease
Interventions
Melphalan
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
Up to 17 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 4, 2021 · Synced Oct 21, 2026, 2:23 PM EDT
Recruiting Phase 3 Interventional

A Study to Investigate the Effect of Mitapivat on Transfusion Burden in Subjects With Sickle Cell Disease (SCD)

NCT07656415
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Mitapivat Matched Placebo, Mitapivat
Drug
Lead sponsor
Agios Pharmaceuticals, Inc.
Industry
Eligibility
12 Years and older
Enrollment
159 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
3
States / cities
Indianapolis, Indiana • Grand Rapids, Michigan • Flowood, Mississippi
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 21, 2026, 2:23 PM 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 2, 2025 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Not applicable Interventional

The Longitudinal Relationship of HU Adherence to HRQOL, Barriers to Adherence and Habit in SCD.

NCT04691323
View directory record Official record
Conditions
Sickle Cell Disease, Sickle B+ Thalassemia, Sickle Beta Zero Thalassemia, Sickle Cell Hemoglobin C
Interventions
HU-Go app
Other
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
12 Years to 21 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 21, 2026, 2:23 PM EDT
Active, not recruiting No phase listed Observational

Long - Term Follow Up of Sickle Cell Disease and Beta-thalassemia Subjects Previously Exposed to BIVV003 or ST-400.

NCT05145062
View directory record Official record
Conditions
Blood and Lymphatic Diseases
Interventions
BIVV003, ST-400
Drug
Lead sponsor
Sangamo Therapeutics
Industry
Eligibility
18 Years to 45 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2038
U.S. locations
7
States / cities
Oakland, California • Sacramento, California • Atlanta, Georgia + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 12, 2025 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of the Absorption, Metabolism, and Excretion of GBT440 in Healthy Male Subjects

NCT02497924
View directory record Official record
Conditions
Anemia, Sickle Cell
Interventions
GBT440
Drug
Lead sponsor
Global Blood Therapeutics
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 12, 2017 · Synced Oct 21, 2026, 2:23 PM 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 12, 2008 · Synced Oct 21, 2026, 2:23 PM EDT
Completed No phase listed Observational

The Feasibility of Text Messaging to Assess Secondhand Smoke Exposure Among Youngsters With Cancer or Sickle Cell Disease

NCT01591187
View directory record Official record
Conditions
Cancer, Sickle Cell Disease
Interventions
Text messaging, Questionnaire, Interviews
Other
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
10 Years to 17 Years
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 5, 2015 · Synced Oct 21, 2026, 2:23 PM EDT
Active, not recruiting Not applicable Interventional Results available

Sickle Cell Disease (SCD) Bone Pain Study

NCT05283148
View directory record Official record
Conditions
Sickle Cell Disease, Sickle Cell Anemia, Low Bone Density, Osteoporosis, Osteopenia, Vertebral Fracture, Vertebral Compression, Osteonecrosis, Ischemic Necrosis, Avascular Necrosis
Interventions
Dual-energy X-ray absorptiometry, Vertebral fracture analysis, Adult Sickle Cell Quality of Life Measurement System pain impact questionnaire
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 80 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 21, 2026, 2:23 PM 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 2, 2025 · Synced Oct 21, 2026, 2:23 PM EDT
Recruiting Not applicable Interventional

Stress Management and Mindfulness Intervention for Patients With Sickle Cell Disease

NCT07316478
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Stress Management and Mindfulness Intervention for Patients with Sickle Cell Disease
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Phase 2 Interventional Results available

Decitabine for High-Risk Sickle Cell Disease

NCT01375608
View directory record Official record
Conditions
Neutropenia, Sickle Cell Disease
Interventions
Decitabine
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 1, 2017 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Sickle Cell Anemia WE CARE

NCT03716726
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
WE CARE SDoH Screening Survey, Family Resource Book, Standard of care
Behavioral · Other
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 26, 2024 · Synced Oct 21, 2026, 2:23 PM EDT
Recruiting Phase 3 Interventional

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

NCT06609226
View directory record Official record
Conditions
Sickle Cell Disease, Thalassemia
Interventions
Etavopivat A, Etavopivat B, Etavopivat C
Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
2 Years and older
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
36
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 27 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2026 · Synced Oct 21, 2026, 2:23 PM 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 13, 2026 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Phase 2 Interventional

Study of SANGUINATE™ In the Treatment of Sickle Cell Disease Patients With Vaso-Occlusive Crisis

NCT02411708
View directory record Official record
Conditions
Anemia, Sickle Cell
Interventions
SANGUINATE, Placebo
Drug
Lead sponsor
Prolong Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
9
States / cities
Hollywood, Florida • Tampa, Florida • Baltimore, Maryland + 5 more
Source: ClinicalTrials.gov public record
Updated May 23, 2018 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Phase 1 Interventional

Evaluation of Hydroxyurea Plus L-arginine or Sildenafil to Treat Sickle Cell Anemia

NCT00056433
View directory record Official record
Conditions
Sickle Cell Anemia
Interventions
Hydroxyurea, L-Arginine, Sildenafil
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
16 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 22, 2019 · Synced Oct 21, 2026, 2:23 PM EDT
Recruiting No phase listed Observational

A Pilot Study on Neuroimaging in SCD: Part of The Boston Consortium to Cure Sickle Cell Disease

NCT04166526
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
FDNIRS-DCS, MRI
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
8 Years to 18 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 12, 2025 · Synced Oct 21, 2026, 2:23 PM EDT