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ClinicalTrials.gov public records Last synced Oct 10, 2026, 9:14 PM EDT

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Showing 25–48 of 61 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Oral Iron (Ferrous sulphate) Clear all
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 14, 2018 · Synced Oct 10, 2026, 9:14 PM EDT
Not yet recruiting Early Phase 1 Interventional Accepts healthy volunteers

Impact of Iron Supplementation on Right Ventricular Function and Exercise Performance in Hypoxia

NCT05349630
View directory record Official record
Conditions
Right Ventricular Dysfunction, Hypoxia
Interventions
Ferrous sulfate 325mg
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 60 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2028 – 2030
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Oct 10, 2026, 9:14 PM EDT
Terminated Phase 2 Interventional Results available

Efficacy of Ferric Carboxymaltose in Gastrointestinal Stromal Tumor (GIST) Patients With Iron Deficiency Anemia (IDA) Receiving Systemic Therapy

NCT02949947
View directory record Official record
Conditions
Malignant Neoplasms of Mesothelial and Soft Tissue, Gastrointestinal Stromal Tumor With Neurogenic Differentiation
Interventions
Ferric Carboxymaltose, Iron Supplements, Questionnaire
Drug · Dietary Supplement · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 6, 2020 · Synced Oct 10, 2026, 9:14 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 10, 2026, 9:14 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 10, 2026, 9:14 PM EDT
Completed Not applicable Interventional

Iron Supplement to Improve Iron Status Following Bariatric Surgery

NCT02404012
View directory record Official record
Conditions
Anemia, Iron Deficiency
Interventions
Oral iron supplementation
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 5, 2022 · Synced Oct 10, 2026, 9:14 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 10, 2026, 9:14 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 10, 2026, 9:14 PM EDT
Completed Phase 3 Interventional Results available

Comparison of Oral Ferrous Sulfate to Intravenous Ferumoxytol in Antepartum Iron Deficiency Anemia

NCT04253626
View directory record Official record
Conditions
Pregnancy Related, Anemia, Iron Deficiency
Interventions
Ferumoxytol Injection [Feraheme], Ferrous Sulfate
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Oct 10, 2026, 9:14 PM EDT
Completed Not applicable Interventional

Oral Iron Supplementation in Pulmonary Hypertension

NCT01446848
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
iron supplement
Dietary Supplement
Lead sponsor
The Cleveland Clinic
Other
Eligibility
21 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 12, 2014 · Synced Oct 10, 2026, 9:14 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 29, 2024 · Synced Oct 10, 2026, 9:14 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 14, 2018 · Synced Oct 10, 2026, 9:14 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 10, 2026, 9:14 PM EDT
Recruiting Phase 3 Interventional

IV Iron Trial for Anemia Related to Uterine Bleeding in Female Patients Presenting to the Emergency Department

NCT05304442
View directory record Official record
Conditions
Anemia, Iron Deficiency, Uterine Bleeding
Interventions
Ferric Derisomaltose 1000 Mg in 10 mL INTRAVENOUS SOLUTION [Monoferric], Ferrous Sulfate 65 mg elemental iron (325 mg tablets)
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 5, 2024 · Synced Oct 10, 2026, 9:14 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Pilot Trial Investigating Every Other Day Dosing of Oral Iron in Premature Infants (IQONic)

NCT06555315
View directory record Official record
Conditions
Very Low Birth Weight Infant, Premature Infants, Anemia of Prematurity, Iron Deficiency, Anaemia in Children, Extremely Low Birth Weight
Interventions
6 mg/kg of oral iron as ferrous sulfate administered every other day., 6 mg/kg of oral iron as ferrous sulfate administered every day.
Dietary Supplement
Lead sponsor
CHRISTUS Health
Other
Eligibility
26 Weeks to 32 Weeks
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Aug 15, 2024 · Synced Oct 10, 2026, 9:14 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 5, 2018 · Synced Oct 10, 2026, 9:14 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 10, 2026, 9:14 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 10, 2026, 9:14 PM EDT
Completed Phase 4 Interventional Results available

Intravenous Iron for Iron-deficiency Anemia in Pregnancy: a Randomized Controlled Trial

NCT03438227
View directory record Official record
Conditions
Iron Deficiency Anemia of Pregnancy, Iron Malabsorption
Interventions
Iron dextran, Ferrous sulfate 325mg
Drug
Lead sponsor
Indiana University
Other
Eligibility
Female only
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Indianapolis, Indiana • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 11, 2024 · Synced Oct 10, 2026, 9:14 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 10, 2026, 9:14 PM EDT
Recruiting Phase 3 Interventional

Intravenous Versus Oral Iron for Treating Iron-Deficiency Anemia in Pregnancy

NCT05462704
View directory record Official record
Conditions
Iron Deficiency Anemia, Pregnancy
Interventions
Ferric derisomaltose, Ferrous sulfate
Drug
Lead sponsor
Women and Infants Hospital of Rhode Island
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
8
States / cities
Birmingham, Alabama • Miami, Florida • Ann Arbor, Michigan + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2025 · Synced Oct 10, 2026, 9:14 PM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

IV Iron vs Oral Iron for Treatment of Anemia in Women With Abnormal Uterine Bleeding

NCT04205266
View directory record Official record
Conditions
Anemia, Iron Deficiency, Heavy Menstrual Bleeding
Interventions
Ferumoxytol, Ferrous Sulfate
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 21, 2023 · Synced Oct 10, 2026, 9:14 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 18, 2019 · Synced Oct 10, 2026, 9:14 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 10, 2026, 9:14 PM EDT