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Showing 1–24 of 100 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Iron Sulfate Clear all
Completed Phase 3 Interventional

Iron Supplementation and Neurodevelopmental Outcome in ELGANs

NCT04691843
View directory record Official record
Conditions
Iron-deficiency
Interventions
Iron Sulfate
Drug
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
7 Days to 4 Weeks
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 11, 2024 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

Low-dose Iron Supplementation and Markers of Iron Status Among Non-anemic, Iron-deficient Women

NCT02683369
View directory record Official record
Conditions
Non-anemic Iron Deficiency
Interventions
Blood Builder®/Iron Response®
Dietary Supplement
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 15, 2019 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Phase 2Phase 3 Interventional Results available

2 Doses of Ferrlecit Versus Oral Iron to Treat Iron-deficiency Anemia in Peritoneal Dialysis Patients.

NCT00223977
View directory record Official record
Conditions
Iron Deficiency Anemia
Interventions
Sodium Ferric Gluconate Complex, Oral Iron
Drug
Lead sponsor
Watson Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
19
States / cities
Birmingham, Alabama • Mesa, Arizona • Los Angeles, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2013 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Vitamin C on Iron Absorption

NCT00570895
View directory record Official record
Conditions
Iron Deficiency
Interventions
Vitamin C
Dietary Supplement
Lead sponsor
Baylor College of Medicine
Other
Eligibility
4 Years to 8 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 25, 2020 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Ferrous Sulfate on the Pharmacokinetics of AKB-6548

NCT02327546
View directory record Official record
Conditions
Healthy Volunteers
Interventions
AKB-6548, Ferrous Sulfate
Drug
Lead sponsor
Akebia Therapeutics
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Kalamazoo, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 13, 2018 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Phase 2 Interventional Results available

Efficacy of Enteral Iron Supplementation in Critical Illness

NCT00450177
View directory record Official record
Conditions
Anemic, Critically Ill Patients
Interventions
Ferrous Sulfate, Placebo Oral Tablet
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 17, 2019 · Synced Sep 2, 2026, 5:41 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

A Clinical Trial of Iron Supplementation for Youth With ADHD and Restless Sleep

NCT07061470
View directory record Official record
Conditions
ADHD, Sleep Problems
Interventions
Ferrous Sulfate, Placebo
Dietary Supplement · Other
Lead sponsor
Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
Other
Eligibility
8 Years to 18 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Phase 3 Interventional Results available

Comparison of the Safety and Efficacy of Intravenous Iron Versus Oral Iron in Subjects Who Display Postpartum Anemia

NCT00396292
View directory record Official record
Conditions
Anemia
Interventions
Oral iron tablets, VIT-45
Drug
Lead sponsor
American Regent, Inc.
Industry
Eligibility
Female only
Enrollment
361 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Norristown, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 4, 2018 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Not applicable Interventional

Iron Therapy for Autosomal Dominant Hypophosphatemic Rickets: A Pilot Project.

NCT02233322
View directory record Official record
Conditions
Autosomal Dominant Hypophosphatemic Rickets
Interventions
Iron
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
25 Months and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Nov 13, 2019 · Synced Sep 2, 2026, 5:41 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 2, 2025 · Synced Sep 2, 2026, 5:41 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 19, 2026 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Trial Comparing Iron Supplementation Versus Routine Iron Intake in Very Low Birth Weight Infants

NCT01125163
View directory record Official record
Conditions
Iron Deficiency Anemia
Interventions
Iron Supplement, multivitamin
Dietary Supplement
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
24 Weeks to 32 Weeks
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 3, 2019 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Phase 3 Interventional Results available

Multicenter Randomized Active-controlled Study to Investigate Efficacy & Safety of IV FCM in Pediatric Patients With IDA

NCT03523117
View directory record Official record
Conditions
Iron Deficiency Anemia
Interventions
Ferric carboxymaltose, Ferrous Sulfate
Drug
Lead sponsor
American Regent, Inc.
Industry
Eligibility
1 Year to 17 Years
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
16
States / cities
Little Rock, Arkansas • Doral, Florida • Miami, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 21, 2022 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Phase 3 Interventional Results available

Evaluate the Safety and Efficacy of Ferric Maltol Oral Suspension vs. Ferrous Sulfate Oral Liquid in Children and Adolescents Aged 2 to 17 Years With Iron-deficiency Anaemia, With a Single Arm Study in Infants Aged 1 Month to Less Than 2 Years

NCT05126901
View directory record Official record
Conditions
Anemia, Iron-deficiency
Interventions
Ferric Maltol, Ferrous sulfate
Drug
Lead sponsor
Shield Therapeutics
Industry
Eligibility
1 Month to 17 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
14
States / cities
Saraland, Alabama • Homestead, Florida • Kissimmee, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 2, 2026, 5:41 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

How Does Perimenopausal Menorrhagia Affect Women's Quality of Life and Cognitive Function?

NCT06798584
View directory record Official record
Conditions
Iron Deficiency Anemia Treatment, Iron Deficiency, Iron Deficiency (Without Anemia)
Interventions
FeoSol Original Iron Supplement Tablets, 21st Century Gelatin Capsules
Dietary Supplement
Lead sponsor
Purdue University
Other
Eligibility
18 Years and older · Female only
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 12, 2025 · Synced Sep 2, 2026, 5:41 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 12, 2023 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Safe and Effective Delivery of Supplemental Iron to Healthy Volunteers

NCT03212677
View directory record Official record
Conditions
Iron
Interventions
Ferrous sulfate, IHAT, Aspiron, Placebo
Dietary Supplement · Other
Lead sponsor
Tufts University
Other
Eligibility
50 Years to 80 Years
Enrollment
226 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 24, 2025 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Early Phase 1 Interventional Results available

Placental Lesions in Fetal Growth Restrictions

NCT04839185
View directory record Official record
Conditions
Fetal Growth Retardation
Interventions
Ferumoxytol infusion, MRI scan
Drug · Procedure
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 21, 2025 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Phase 2 Interventional Results available

Pilot Study: Randomized, Placebo-controlled Comparator Trial of IV vs Oral Iron Treatment of RLS With IDA. (IVOR-IDA)

NCT02499354
View directory record Official record
Conditions
Restless Legs Syndrome, Iron Deficiency Anemia
Interventions
Ferumoxytol intravenous, Ferrous sulfate
Drug
Lead sponsor
Auerbach Hematology Oncology Associates P C
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 29, 2024 · Synced Sep 2, 2026, 5:41 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Intravenous Iron Versus Oral Iron for the Treatment of Iron Deficiency Anemia

NCT06366698
View directory record Official record
Conditions
Iron Deficiency Anemia of Pregnancy
Interventions
Venofer 200 MG Per 10 ML Injection, Ferrous sulfate
Drug
Lead sponsor
Arrowhead Regional Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
900 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Colton, California
Source: ClinicalTrials.gov public record
Updated Apr 15, 2024 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Relative Bioavailability of Two Formulations of AKB-6548 and the Food Effect of a New Tablet in Healthy Adult Subjects

NCT02412449
View directory record Official record
Conditions
Healthy
Interventions
AKB-6548 tablet, reference formulation given in the fasted state, AKB-6548 tablet, test formulation given in the fasted state., AKB-6548 tablet, test formulation given in the fed state
Drug
Lead sponsor
Akebia Therapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Kalamazoo, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 13, 2018 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Treatment of Non-Anemic Iron Deficiency in Pregnancy

NCT05423249
View directory record Official record
Conditions
Non-anemic Iron Deficiency
Interventions
Ferrous sulfate, Prenatal, Docusate Sodium, Ascorbic Acid 500Mg Tab, Placebo
Drug
Lead sponsor
Stony Brook University
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
3
States / cities
Bohemia, New York • Commack, New York • East Setauket, New York
Source: ClinicalTrials.gov public record
Updated Nov 28, 2024 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Community Trial of Zinc Supplementation on Preschool Child Mortality and Morbidity in Southern Nepal

NCT00109551
View directory record Official record
Conditions
Nutrition
Interventions
zinc sulphate dietary supplement, iron sulphate-folic acid dietary supplement
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
1 Month to 36 Months
Enrollment
58,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2006
U.S. locations
2
States / cities
Baltimore, Maryland • Ithaca, New York
Source: ClinicalTrials.gov public record
Updated Apr 30, 2013 · Synced Sep 2, 2026, 5:41 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Adherence With Iron Sprinkles Among High-Risk Infants

NCT00136266
View directory record Official record
Conditions
Anemia, Iron Deficiency
Interventions
Ferrous sulphate drops with vitamins A, D, and C, Ferrous fumarate sprinkles with vitamins and minerals
Drug
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
5 Months to 7 Months
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 2, 2016 · Synced Sep 2, 2026, 5:41 PM EDT