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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Phase 1 Sickle Cell Clear all
Completed Phase 1Phase 2 Interventional Results available

Conditioning Regimen for Allogeneic Hematopoietic Stem-Cell Transplantation

NCT03513328
View directory record Official record
Conditions
Bone Marrow Failure Syndrome, Thalassemia, Sickle Cell Disease, Diamond Blackfan Anemia, Acquired Neutropenia in Newborn, Acquired Anemia Hemolytic, Acquired Thrombocytopenia, Hemophagocytic Lymphohistiocytoses, Wiskott-Aldrich Syndrome, Chronic Granulomatous Disease, Common Variable Immunodeficiency, X-linked Lymphoproliferative Disease, Severe Combined Immunodeficiency, Hurler Syndrome, Mannosidosis, Adrenoleukodystrophy
Interventions
Thiotepa--single daily dose, Thiotepa--escalated dose
Drug
Lead sponsor
University of Florida
Other
Eligibility
3 Months to 39 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 14, 2023 · Synced Sep 25, 2026, 9:10 AM EDT
Recruiting Phase 1Phase 2 Interventional

Gene Correction in Autologous CD34+ Hematopoietic Stem Cells (HbS to HbA) to Treat Severe Sickle Cell Disease

NCT04819841
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
nula-cel Drug Product
Genetic
Lead sponsor
Kamau Therapeutics
Industry
Eligibility
12 Years to 50 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
6
States / cities
Los Angeles, California • Palo Alto, California • St Louis, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 1 Interventional

A Phase I/II Trial of Recombinant-Methionyl Human Stem Cell Factor (SCF) in Adult Patients With Sickling Disorders

NCT00005783
View directory record Official record
Conditions
Hemoglobin SC Disease, Sickle Cell Anemia
Interventions
Recombinant-methionyl human stem cell factor
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Simvastatin (Zocor) Therapy in Sickle Cell Disease

NCT00508027
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Simvastatin
Drug
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
13 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Sep 16, 2013 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 1Phase 2 Interventional

Phase I/II Randomized Study of Hydroxyurea With or Without Clotrimazole in Patients With Sickle Cell Anemia

NCT00004492
View directory record Official record
Conditions
Sickle Cell Anemia
Interventions
clotrimazole, hydroxyurea
Drug
Lead sponsor
University of North Carolina
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2001
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 24, 2015 · Synced Sep 25, 2026, 9:10 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional Results available

Non-myeloablative Haploidentical HCT Study for Patients With Sickle Cell Disease, Including Compromised Organ Function

NCT06145282
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Briquilimab, Filgrastim, Abatacept, Sirolimus, Cyclophosphamide
Biological · Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
4 Years to 100 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 1 Interventional

Use of Hydroxyurea and Magnesium Pidolate for Treatment of Sickle Cell Disease

NCT00143572
View directory record Official record
Conditions
Anemia, Sickle Cell
Interventions
Magnesium Pidolate, Hydroxyurea
Drug
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
3 Years to 15 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 25, 2017 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 1Phase 2 Interventional

Bone Marrow Transplantation in Treating Children With Sickle Cell Disease

NCT00004485
View directory record Official record
Conditions
Sickle Cell Anemia
Interventions
cyclosporine, fludarabine, mycophenolate mofetil, Bone Marrow Transplantation
Drug · Procedure
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
Up to 16 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
2
States / cities
Oakland, California • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 9, 2008 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 1 Interventional

A Single Dose Study of the Safety, Blood Levels and Biological Effects of Aes-103 Compared to Placebo in Subjects With Stable Sickle Cell Disease

NCT01597401
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Aes-103, Placebo
Drug
Lead sponsor
Baxalta now part of Shire
Industry
Eligibility
18 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 4, 2021 · Synced Sep 25, 2026, 9:10 AM EDT
Terminated Phase 1Phase 2 Interventional

AB1 in Adult Patients with Sickle Cell Disease (SCD)

NCT05261711
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
AB1
Drug
Lead sponsor
Nirmish Shah
Other
Eligibility
18 Years to 45 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
3
States / cities
Augusta, Georgia • Durham, North Carolina • Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 3, 2024 · Synced Sep 25, 2026, 9:10 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Ph I/II Study of Allogeneic SCT for Clinically Aggressive Sickle Cell Disease (SCD)

NCT01499888
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Allogeneic Non-Myeloablative Stem Cell Transplantation, Alemtuzumab, Sirolimus
Procedure · Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
16 Years to 60 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2029
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 1 Interventional

Study of Decitabine and Tetrahydrouridine (THU) in Patients With Sickle Cell Disease

NCT01685515
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Oral Decitabine and Tetrahydrouridine, Placebo
Drug
Lead sponsor
Yogen Saunthararajah
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 10, 2018 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability and Pharmacokinetics of FTX-6058

NCT04586985
View directory record Official record
Conditions
Healthy Adult Subjects, Sickle Cell Disease
Interventions
FTX-6058/placebo oral capsule(s), FTX-6058 - Two Dosing Periods, FTX-6058 / Midazolam Syrup
Drug
Lead sponsor
Fulcrum Therapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
109 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
2
States / cities
Atlanta, Georgia • Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Dec 11, 2022 · Synced Sep 25, 2026, 9:10 AM EDT
Terminated Phase 1 Interventional

Study of GBT021601 in Participants With Renal Impairment

NCT05878704
View directory record Official record
Conditions
Renal Impairment
Interventions
GBT021601
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
4
States / cities
Lake Forest, California • Tustin, California • Miami, Florida + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 14, 2024 · Synced Sep 25, 2026, 9:10 AM EDT
Not listed Phase 1 Interventional

PK and PD Responses to Oral L-Citrulline in Patients With Sickle Cell Disease

NCT00343954
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
L-citrulline tablets, 1000 mg
Drug
Lead sponsor
Angiogenix
Industry
Eligibility
10 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 22, 2006 · Synced Sep 25, 2026, 9:10 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 Sep 25, 2026, 9:10 AM EDT
Withdrawn Not applicable Interventional

Ranibizumab for Neovascularization in Sickle Cell Retinopathy

NCT00618644
View directory record Official record
Conditions
Sickle Cell Anemia, Retinopathy
Interventions
Ranibizumab
Drug
Lead sponsor
Kresge Eye Institute
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 26, 2012 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 1Phase 2 Interventional

Intravenous Gammaglobulin for Sickle Cell Pain Crises

NCT01757418
View directory record Official record
Conditions
Sickle Cell Disease, Pain
Interventions
Immune Globulin Intravenous (IVIG), Normal saline
Drug · Other
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
6 Years to 13 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2024
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Sep 25, 2026, 9:10 AM EDT
Terminated Phase 1 Interventional

Study of Safety and Efficacy of Genome-edited Hematopoietic Stem and Progenitor Cells in Sickle Cell Disease (SCD)

NCT04443907
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
OTQ923
Biological
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
2 Years to 40 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
3
States / cities
Chicago, Illinois • New York, New York • Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 1 Interventional Results available

Safety, Tolerability, Pharmacokinetics, And Pharmacodynamics Study Of PF-04447943, Co-Administered With And Without Hydroxyurea, In Subjects With Stable Sickle Cell Disease

NCT02114203
View directory record Official record
Conditions
Phase 1 Sickle Cell
Interventions
PDE9i, placebo for PDE9i
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
12
States / cities
Chicago, Illinois • Boston, Massachusetts • Brooklyn, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 13, 2017 · Synced Sep 25, 2026, 9:10 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

A Safety Study of Eptifibatide in Patients With Sickle Cell Disease

NCT00834899
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Eptifibatide, Placebo
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 55 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 26, 2013 · Synced Sep 25, 2026, 9:10 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Omega-3 Fatty Acids in Sickle Cell Disease

NCT02947100
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
SCD-Omegatex™
Drug
Lead sponsor
Robin E. Miller
Other
Eligibility
8 Years to 25 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Wilmington, Delaware
Source: ClinicalTrials.gov public record
Updated Oct 18, 2020 · Synced Sep 25, 2026, 9:10 AM EDT
Terminated Phase 1 Interventional Results available

Regional Anesthesia for Sickle Cell Crisis Using Ultrasound in The Emergency Department: Phase I

NCT01256281
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Femoral Nerve Block
Procedure
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 22, 2015 · Synced Sep 25, 2026, 9:10 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Long-term Mitapivat Dosing in Subjects With Stable Sickle Cell Disease: An Extension of a Phase I Pilot Study of Mitapivat

NCT04610866
View directory record Official record
Conditions
Sickle Cell Disease, Hemolytic Anemia
Interventions
Mitapivat
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 25, 2026, 9:10 AM EDT