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ClinicalTrials.gov public records Last synced Oct 20, 2026, 6:58 PM EDT

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Showing 1–24 of 64 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Oral iron supplements Clear all
Recruiting Phase 2 Interventional

Darbe Plus IV Iron to Decrease Transfusions While Maintaining Iron Sufficiency in Preterm Infants

NCT05340465
View directory record Official record
Conditions
Prematurity, Iron-deficiency, Iron Deficiency Anemia, Iron Malabsorption
Interventions
Darbepoetin Alfa, Low Molecular Weight Iron Dextran, Ferumoxytol injection, Oral iron supplements
Drug
Lead sponsor
University of Washington
Other
Eligibility
Up to 3 Days
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Oct 20, 2026, 6:58 PM EDT
Withdrawn Phase 2 Interventional

IV Iron Sucrose vs Oral FeSO4 in Treating IDA in Pediatric IBD

NCT01438372
View directory record Official record
Conditions
Iron Deficiency Anemia, Inflammatory Bowel Disease
Interventions
Intravenous iron sucrose, Oral ferrous sulfate
Drug
Lead sponsor
Wayne State University
Other
Eligibility
12 Years to 17 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 7, 2014 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Alternate Day Versus Daily Oral Iron Therapy in Adolescents

NCT05007899
View directory record Official record
Conditions
Iron Deficiency Anemia, Heavy Menstrual Bleeding, Abnormal Uterine Bleeding
Interventions
Ferrous sulfate
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
9 Years to 22 Years · Female only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 13, 2023 · Synced Oct 20, 2026, 6:58 PM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Iron Supplementation and Intestinal Health

NCT04497012
View directory record Official record
Conditions
Anemia of Prematurity, Very Low Birth Weight Infant
Interventions
2mg/kg/day Iron Sulfate, 6 mg/kg/day Iron Sulfate
Drug
Lead sponsor
University of South Florida
Other
Eligibility
1 Day to 6 Months
Enrollment
183 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jan 22, 2025 · Synced Oct 20, 2026, 6:58 PM EDT
Terminated Phase 4 Interventional Results available

Daily Versus Alternate Day Iron Supplementation for the Treatment of Iron Deficiency Anemia in Pregnancy

NCT04594070
View directory record Official record
Conditions
Pregnancy Related, Iron Deficiency Anemia of Pregnancy
Interventions
Ferrous sulfate
Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 24, 2024 · Synced Oct 20, 2026, 6:58 PM EDT
Terminated Phase 4 Interventional

Study of the Efficacy and Safety of Ferrlecit in the Maintenance Dosing in Hemodialysis Patients.

NCT00223938
View directory record Official record
Conditions
Anemia
Interventions
Oral Iron, sodium ferric gluconate
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
8
States / cities
Hot Springs, Arkansas • Orange County, California • Simi Valley, California + 5 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2021 · Synced Oct 20, 2026, 6:58 PM EDT
Recruiting Phase 4 Interventional

Oral Iron in Children With Chronic Kidney Disease

NCT03991169
View directory record Official record
Conditions
Chronic Kidney Insufficiency, Chronic Kidney Diseases
Interventions
Ferrous Sulfate
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
1 Year to 21 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
2
States / cities
New York, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 11, 2025 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Iron Absorption From Iron-enriched Aspergillus Oryzae

NCT03156712
View directory record Official record
Conditions
Iron-deficiency, Absorption; Iron, Anemia, Iron Deficiency, Bioavailability, Serum Iron
Interventions
Ferrous sulfate
Dietary Supplement
Lead sponsor
Iowa State University
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Ames, Iowa
Source: ClinicalTrials.gov public record
Updated May 18, 2017 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Phase 3 Interventional Results available

Oral Iron Versus Oral Iron Plus a Web-based Behavioral Intervention in Young Children (IRONCHILD)

NCT04371536
View directory record Official record
Conditions
Iron Deficiency Anemia, Iron-deficiency
Interventions
Ferrous Sulfate, IRONCHILD
Drug · Behavioral
Lead sponsor
Baylor College of Medicine
Other
Eligibility
12 Months to 48 Months
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 6, 2023 · Synced Oct 20, 2026, 6:58 PM EDT
Completed No phase listed Observational

Impact of Iron Supplementation Treatment on Brain Iron Concentrations

NCT04144790
View directory record Official record
Conditions
ADHD, Iron-deficiency, Restless Legs Syndrome, Periodic Limb Movement Sleep Disorder
Interventions
ferrous sulfate
Dietary Supplement
Lead sponsor
Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
Other
Eligibility
5 Years to 18 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional Results available

Does a Daily Iron Tablet Improve Anemia in Cystic Fibrosis

NCT01755455
View directory record Official record
Conditions
Cystic Fibrosis, Anemia, Iron-Deficiency
Interventions
Ferrous sulfate 325mg, Placebo
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 70 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
2
States / cities
Portland, Maine • Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Mar 16, 2017 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Intravenous Ferric Carboxymaltose (FCM) in Patients With Iron Deficiency Anemia (IDA)

NCT00982007
View directory record Official record
Conditions
Iron Deficiency Anemia
Interventions
Ferric Carboxymaltose (FCM), Ferrous Sulfate Tablets, IV Iron (standard of care)
Drug
Lead sponsor
American Regent, Inc.
Industry
Eligibility
18 Years and older
Enrollment
997 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Norristown, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 20, 2018 · Synced Oct 20, 2026, 6:58 PM EDT
Recruiting Phase 3 Interventional

Trial of IV vs Oral Iron Treatment of Iron Deficiency Anemia in the Post-Operative Bariatric Surgical Patient

NCT04268849
View directory record Official record
Conditions
Iron Deficiency Anemia
Interventions
Ferumoxytol, Saline, Ferrous sulfate tablets, Vitamin C
Drug
Lead sponsor
Auerbach Hematology Oncology Associates P C
Other
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 3, 2025 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Phase 3 Interventional Results available

Ferric Carboxymaltose (FCM) Assessment in Subjects With Iron Deficiency Anaemia and Non-dialysis-dependent Chronic Kidney Disease (NDD-CKD)

NCT00994318
View directory record Official record
Conditions
Iron Deficiency Anaemia, Chronic Kidney Disease
Interventions
FCM (Ferric carboxymaltose) high ferritin target, FCM (Ferric carboxymaltose) low ferritin target, Oral Iron (Ferrous sulphate)
Drug
Lead sponsor
Vifor Pharma
Industry
Eligibility
18 Years and older
Enrollment
626 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Wilmington, North Carolina
Source: ClinicalTrials.gov public record
Updated May 20, 2014 · Synced Oct 20, 2026, 6:58 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Kids With Iron Deficiency and Scoliosis

NCT06042699
View directory record Official record
Conditions
Adolescent Idiopathic Scoliosis, Neuromuscular Scoliosis, Perioperative/Postoperative Complications, Iron Deficiencies, Anemia, Spinal Fusion, Postoperative Cognitive Dysfunction
Interventions
Oral ferrous sulfate, Oral placebo tablet
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
10 Years to 26 Years
Enrollment
275 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 26, 2026 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Phase 3 Interventional

Intravenous Infusions of Ferumoxytol Compared to Oral Ferrous Sulfate for the Treatment of Anemia in Pregnancy

NCT03657433
View directory record Official record
Conditions
Iron Deficiency Anemia of Pregnancy
Interventions
Ferrous sulfate 325mg, Ferumoxytol
Dietary Supplement · Drug
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 7, 2022 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Intravenous Iron vs. Oral Iron Supplementation for Postpartum Anemia

NCT05047211
View directory record Official record
Conditions
Anemia, Iron Deficiency, Delivery Complication
Interventions
Ferrous sulfate, Iron dextran
Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 29, 2023 · Synced Oct 20, 2026, 6:58 PM EDT
Terminated Phase 4 Interventional

IRONICA: IRON Repletion In Heart Failure - A Comparison of Oral and IV Approaches

NCT07053475
View directory record Official record
Conditions
Heart Failure, Heart Failure With Reduced Ejection Fraction (HFrEF), Heart Failure With Preserved Ejection Fraction (HFPEF), Iron Deficiency, Iron-deficiency Anemia (IDA)
Interventions
Ferric Carboxymaltose, Ferrous Sulfate
Drug
Lead sponsor
Syed Hamza Mufarrih
Other
Eligibility
18 Years to 100 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Bowling Green, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Phase 3 Interventional Results available

VIT45 Versus Oral Iron in the Treatment of Anemia in Non-Dialysis Dependent Chronic Kidney Disease

NCT00317239
View directory record Official record
Conditions
Anemia
Interventions
Ferrous Sulfate tablets, Ferric Carboxymaltose (FCM)
Drug
Lead sponsor
American Regent, Inc.
Industry
Eligibility
12 Years and older
Enrollment
255 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Norristown, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 20, 2018 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy of a Low Dose, Oral, Liquid Iron Supplement on Restoring Inadequate Blood Iron to Normal Levels

NCT05257343
View directory record Official record
Conditions
Iron Deficiency (Without Anemia)
Interventions
Liquid Placebo Supplementation, Liquid Iron Supplement (Blood Builder ®)
Dietary Supplement
Lead sponsor
Applied Science & Performance Institute
Industry
Eligibility
18 Years and older · Female only
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 30, 2023 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Phase 2 Interventional Results available

Anemia Studies in CKD: Erythropoiesis Via a Novel Prolyl Hydroxylase Inhibitor (PHI) Daprodustat- Iron (ASCEND: Fe)

NCT03457701
View directory record Official record
Conditions
Anaemia
Interventions
Daprodustat, rhEPO, Ferrous sulfate containing the stable iron isotope (57Fe), Ferrous sulfate containing the stable iron isotope (58Fe)
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
3
States / cities
Fort Worth, Texas • Lufkin, Texas • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Mar 27, 2024 · Synced Oct 20, 2026, 6:58 PM EDT
Recruiting Not applicable Interventional

Donor Breast Milk 2

NCT07816601
View directory record Official record
Conditions
Iron Deficiency Anemia
Interventions
Ferrous Sulfate Oral Product
Drug
Lead sponsor
AdventHealth
Other
Eligibility
29 Weeks to 33 Weeks
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Iron Supplementation and Side Effects

NCT04018300
View directory record Official record
Conditions
Iron Deficiency Anemia, Iron Overload
Interventions
Ferrous sulfate, Aspiron, Placebo
Dietary Supplement · Other
Lead sponsor
Iowa State University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Ames, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 12, 2019 · Synced Oct 20, 2026, 6:58 PM EDT
Completed Phase 4 Interventional Results available

Effect of Ferrlecit® Versus Oral Iron on Iron Deficient Chronic Kidney Disease (CKD) Patients Receiving Erythropoietic Agents

NCT00224042
View directory record Official record
Conditions
Anemia, Iron-Deficiency, Kidney Failure, Chronic
Interventions
Sodium Ferric Gluconate complex in sucrose, Ferrous sulfate tablets
Drug
Lead sponsor
Watson Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2003
U.S. locations
23
States / cities
Birmingham, Alabama • Tucson, Arizona • Los Angeles, California + 20 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2012 · Synced Oct 20, 2026, 6:58 PM EDT