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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: hydroxyurea Clear all
Completed No phase listed Observational Accepts healthy volunteers

Hydoxyurea Exposure in Lactation A Pharmacokinetics Study (HELPS)

NCT02990598
View directory record Official record
Conditions
Sickle Cell Anemia
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 25, 2019 · Synced Sep 2, 2026, 9:55 PM 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 2, 2026, 9:55 PM EDT
Completed Not applicable Interventional

ElectroNic Hydroxyurea AdhereNCE: A Strategy to Improve Hydroxyurea Adherence in Patients With Sickle Cell Disease

NCT02578017
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Mobile DOT
Behavioral
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
Up to 19 Years
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 9, 2019 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Hydroxyurea and EPO in Sickle Cell Disease

NCT05451940
View directory record Official record
Conditions
Anemia, Sickle Cell, Sickle Cell Disease
Interventions
Hydroxyurea, Epoetin Alfa-BioSimilar
Drug
Lead sponsor
Julia Xu
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 1 Interventional

Combination Drug Treatment of Pediatric HIV Infection

NCT00001818
View directory record Official record
Conditions
HIV Infection
Interventions
Hydroxyurea
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 2 Interventional

Hydroxyurea to Treat Beta-Thalassemia (Cooley's Anemia)

NCT00001958
View directory record Official record
Conditions
Beta Thalassemia, Hemoglobinopathy
Interventions
Hydroxyurea
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 2 Interventional Results available

Transplantation for Patients With Sickle Cell Disease From Mismatched Family Donors of Bone Marrow

NCT02757885
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Bone Marrow Transplant (BMT), Hydroxyurea, Thiotepa, Fludarabine monophosphate, Cyclophosphamide, Rabbit Anti-thymocyte Globulin, Total Body Irradiation
Procedure · Drug · Other + 1 more
Lead sponsor
Emory University
Other
Eligibility
15 Years to 40 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 11, 2023 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 2 Interventional

A Study of the Safety and Effectiveness of Hydroxyurea in Patients on Potent Antiretroviral Therapy and Who Have Less Than 200 Copies/ml of HIV RNA in Their Blood

NCT00000916
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Lamivudine/Zidovudine, Hydroxyurea, Lamivudine, Stavudine, Zidovudine, Didanosine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
399 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2004
U.S. locations
34
States / cities
Birmingham, Alabama • Palo Alto, California • San Diego, California + 24 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 3 Interventional Results available

Randomized Switch Study From Hydroxyurea to Ruxolitinib for RELIEF of Polycythemia Vera Symptoms: The Relief Study

NCT01632904
View directory record Official record
Conditions
Polycythemia Vera
Interventions
Ruxolitinib, Hydroxyurea (HU), HU-placebo, Ruxolitinib-placebo
Drug
Lead sponsor
Incyte Corporation
Industry
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
51
States / cities
Scottsdale, Arizona • Fayetteville, Arkansas • Burbank, California + 48 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2017 · Synced Sep 2, 2026, 9:55 PM EDT
Recruiting No phase listed Observational

Hydroxyurea Exposure Limiting Pregnancy and Follow-Up Lactation

NCT04093986
View directory record Official record
Conditions
Sickle Cell Disease, Sickle Cell Anemia
Interventions
Chart Review, Survey
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Not listed
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2030
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 2 Interventional Results available

Hydroxyurea Management in Kids: Intensive Versus Stable Dosage Strategies

NCT03020615
View directory record Official record
Conditions
Sickle Cell Anemia
Interventions
Hydroxyurea
Drug
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
9 Months to 36 Months
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
4
States / cities
Atlanta, Georgia • Jackson, Mississippi • Memphis, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2021 · Synced Sep 2, 2026, 9:55 PM EDT
Recruiting Phase 1 Interventional

Dosing Study of Radiation Combined With Tislelizumab and Pamiparib in Patients With Previously Treated Head and Neck Cancer

NCT05526924
View directory record Official record
Conditions
Head and Neck Cancer, Head and Neck Squamous Cell Carcinoma, Head and Neck Carcinoma, Head and Neck Cancer Stage IV, Head and Neck Cancers - Throat
Interventions
Chemoradiation, Pamiparib, Hydroxyurea, Fluorouracil (5FU), Tislelizumab
Radiation · Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Sep 2, 2026, 9:55 PM EDT
Terminated Phase 3 Interventional Results available

Stroke With Transfusions Changing to Hydroxyurea

NCT00122980
View directory record Official record
Conditions
Hemochromatosis, Cerebrovascular Accident, Anemia, Sickle Cell, Hematologic Diseases
Interventions
Red Cell Transfusions, Iron Chelation, Hydroxyurea, Phlebotomy
Procedure · Drug
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
5 Years to 18 Years
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
28
States / cities
Birmingham, Alabama • Washington D.C., District of Columbia • Jacksonville, Florida + 23 more
Source: ClinicalTrials.gov public record
Updated Jan 17, 2013 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 2 Interventional Results available

Fluorouracil, Hydroxyurea, Cetuximab and Twice-daily Intensity Radiation Therapy for Advanced Head and Neck Cancer

NCT00462735
View directory record Official record
Conditions
Head and Neck Cancer, Cancer of the Pharynx, Cancer of the Larynx, Nose Neoplasms, Paranasal Sinus Neoplasms, Cancer of the Oral Cavity
Interventions
Cetuximab, Hydroxyurea, Fluorouracil, radiotherapy
Drug · Procedure
Lead sponsor
Johnny Kao
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 12, 2018 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 2 Interventional

Pegylated Interferon Alfa-2a Salvage Therapy in High Risk Polycythemia Vera (PV) or Essential Thrombocythemia (ET)

NCT01259817
View directory record Official record
Conditions
High Risk Polycythemia Vera, High Risk Essential Thrombocythemia
Interventions
PEGASYS, Aspirin
Drug
Lead sponsor
Ronald Hoffman
Other
Eligibility
18 Years and older
Enrollment
135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
16
States / cities
Scottsdale, Arizona • Palo Alto, California • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Jan 10, 2017 · Synced Sep 2, 2026, 9:55 PM EDT
Completed No phase listed Observational Results available

Long-Term Effects of Hydroxyurea in Children With Sickle Cell Anemia (The BABY HUG Follow-up Study)

NCT00890396
View directory record Official record
Conditions
Anemia, Sickle Cell
Interventions
Hydroxyurea
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
2 Years to 7 Years
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
14
States / cities
Birmingham, Alabama • Washington D.C., District of Columbia • Miami, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2020 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 2 Interventional

Combination Chemotherapy Followed by Peripheral Stem Cell Transplantation in Treating Patients With Chronic Myelogenous Leukemia

NCT00002674
View directory record Official record
Conditions
Leukemia
Interventions
filgrastim, cytarabine, etoposide, hydroxyurea, mitoxantrone hydrochloride, peripheral blood stem cell transplantation
Biological · Drug · Procedure
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
17 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1994 – 2000
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 1, 2010 · Synced Sep 2, 2026, 9:55 PM EDT
Terminated Phase 2 Interventional

The Safety and Effectiveness of Didanosine Plus Stavudine Plus Nevirapine Combined With MKC-442 in HIV-Infected Patients Who Have Not Had Success With Protease Inhibitors

NCT00002418
View directory record Official record
Conditions
HIV Infections
Interventions
Emivirine, Hydroxyurea, Nevirapine, Stavudine, Didanosine
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
5
States / cities
Beverly Hills, California • Denver, Colorado • Atlanta, Georgia + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2008 · Synced Sep 2, 2026, 9:55 PM EDT
Recruiting Phase 1Phase 2 Interventional

Lung and Bone Marrow Transplantation for Lung and Bone Marrow Failure

NCT03500731
View directory record Official record
Conditions
Idiopathic Pulmonary Fibrosis, Emphysema or COPD
Interventions
CD3/CD19 negative hematopoietic stem cells, Rituximab, Alemtuzumab, Fludarabine, Thiotepa, G-CSF, Hydroxyurea
Biological · Drug
Lead sponsor
Paul Szabolcs
Other
Eligibility
18 Years to 60 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 2 Interventional

Chemotherapy Plus Radiation Therapy in Treating Patients With Head and Neck Cancer

NCT00002951
View directory record Official record
Conditions
Esophageal Cancer, Head and Neck Cancer
Interventions
fluorouracil, hydroxyurea, surgical procedure, radiation therapy
Drug · Procedure · Radiation
Lead sponsor
University of Chicago
Other
Eligibility
Not listed
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2006
U.S. locations
4
States / cities
Chicago, Illinois • Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 4, 2013 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 2 Interventional Results available

Chemotherapy and Locoregional Therapy Trial (Surgery or Radiation) for Patients With Head and Neck Cancer

NCT03107182
View directory record Official record
Conditions
HPV-Related Squamous Cell Carcinoma, HNSCC
Interventions
nab-paclitaxel, Carboplatin, Nivolumab, Cisplatin, Hydroxyurea, 5-FU, Dexamethasone, Famotidine, Diphenhydramine, Paclitaxel, Transoral robotic surgery (TORS), Adjuvant RT, Chemoradiotherapy
Drug · Procedure · Radiation
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 5, 2025 · Synced Sep 2, 2026, 9:55 PM EDT
Not listed No phase listed Observational

The American Society of Hematology (ASH) Research Registry: A Multicenter Research Registry of Patients With Hematologic Disease

NCT03535220
View directory record Official record
Conditions
Benign and Malignant Hematologic Diseases
Interventions
Protease Inhibitors
Combination Product
Lead sponsor
American Society of Hematology
Other
Eligibility
1 Year to 65 Years
Enrollment
20,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 23, 2018 · Synced Sep 2, 2026, 9:55 PM EDT
Terminated Phase 2 Interventional

The Safety and Effectiveness of Didanosine Plus Stavudine Plus Delavirdine Mesylate Plus MKC-442 in HIV-Infected Patients Who Have Not Had Success With Protease Inhibitors

NCT00002420
View directory record Official record
Conditions
HIV Infections
Interventions
Emivirine, Hydroxyurea, Delavirdine mesylate, Stavudine, Didanosine
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Beverly Hills, California
Source: ClinicalTrials.gov public record
Updated Aug 13, 2008 · Synced Sep 2, 2026, 9:55 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Combination Chemotherapy With or Without Veliparib in Treating Patients With Stage IV Head and Neck Cancer

NCT01711541
View directory record Official record
Conditions
Head and Neck Squamous Cell Carcinoma, Stage IVA Oropharyngeal Carcinoma AJCC v7, Stage IVB Oropharyngeal Carcinoma AJCC v7
Interventions
Carboplatin, Cisplatin, Fluorouracil, Hydroxyurea, Laboratory Biomarker Analysis, Paclitaxel, Placebo Administration, Radiation Therapy, Veliparib
Drug · Other · Radiation
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2023
U.S. locations
5
States / cities
Chicago, Illinois • Evanston, Illinois • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 6, 2023 · Synced Sep 2, 2026, 9:55 PM EDT