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ClinicalTrials.gov public records Last synced Oct 22, 2026, 7:04 AM EDT

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Showing 1–24 of 98 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: ferrous sulfate Clear all
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 22, 2026, 7:04 AM 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 22, 2026, 7:04 AM 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 22, 2026, 7:04 AM 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 13, 2025 · Synced Oct 22, 2026, 7:04 AM 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 22, 2026, 7:04 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Randomized Trial of Iron Supplementation to Prevent Anemia in Very-low-birth-weight Infants

NCT01224236
View directory record Official record
Conditions
Anemia
Interventions
Iron Supplement, control
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
Up to 8 Weeks
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 19, 2015 · Synced Oct 22, 2026, 7:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Strategies to Reduce Iron Deficiency

NCT02245321
View directory record Official record
Conditions
Iron Deficiency
Interventions
Ferrous gluconate- 19 mg, Ferrous gluconate- 38 mg, Letter Group- Information Provided, Letter - No Information Provided, Placebo
Dietary Supplement · Other
Lead sponsor
Westat
Other
Eligibility
18 Years to 100 Years
Enrollment
702 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
4
States / cities
Farmington, Connecticut • Rockville, Maryland • Pittsburgh, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 6, 2023 · Synced Oct 22, 2026, 7:04 AM 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 22, 2025 · Synced Oct 22, 2026, 7:04 AM 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 22, 2026, 7:04 AM 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 3, 2016 · Synced Oct 22, 2026, 7:04 AM 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 4, 2019 · Synced Oct 22, 2026, 7:04 AM 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 22, 2026, 7:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Iron and the Breast-Fed Infant: Iron Status and Two Regimens of Iron Supplementation

NCT00760890
View directory record Official record
Conditions
Iron Deficiency
Interventions
Fer-In-Sol (ferrous sulfate), Iron fortified cereal
Dietary Supplement
Lead sponsor
National Institutes of Health (NIH)
NIH
Eligibility
1 Month to 24 Months
Enrollment
171 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2005
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 26, 2008 · Synced Oct 22, 2026, 7:04 AM EDT
Recruiting Phase 4 Interventional

Oral Iron Supplementation on Alternate vs. Consecutive Days for Iron Deficiency Anemia in Pregnancy

NCT06492512
View directory record Official record
Conditions
Iron-deficiency Anemia (IDA), Pregnancy
Interventions
daily ferrous sulfate with an equivalent elemental iron dose of 65 mg per pill, alternate day ferrous sulfate with an equivalent elemental iron dose of 65 mg per pill
Drug
Lead sponsor
Southern Illinois University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Springfield, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 24, 2026 · Synced Oct 22, 2026, 7:04 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The Immediate and Long-term Effects of a Novel Marine-based Iron Supplement in Adult Females

NCT07199244
View directory record Official record
Conditions
Anemia, Iron Deficiency (Without Anemia), Iron Absorption
Interventions
marine-based heme iron
Dietary Supplement
Lead sponsor
Nutraceuticals Research Institute
Other
Eligibility
21 Years to 42 Years · Female only
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Huntsville, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Oct 22, 2026, 7:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

How Does Iron Supplementation Affect Training and Performance in Female Collegiate Rowers?

NCT01383798
View directory record Official record
Conditions
Iron Deficiency (Without Anemia)
Interventions
Placebo, Ferrous sulfate
Dietary Supplement
Lead sponsor
Cornell University
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Ithaca, New York
Source: ClinicalTrials.gov public record
Updated Mar 14, 2014 · Synced Oct 22, 2026, 7:04 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of a Hematinic Agent in the Treatment of Postpartum Patients

NCT00354484
View directory record Official record
Conditions
Postpartum Anemia
Interventions
Ferric Carboxymaltose (FCM), Ferrous Sulfate tablets
Drug
Lead sponsor
American Regent, Inc.
Industry
Eligibility
Female only
Enrollment
291 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Norristown, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 20, 2018 · Synced Oct 22, 2026, 7:04 AM EDT
Withdrawn Phase 3 Interventional

Efficacy and Safety Study of Ulipristal Acetate in Females With Anemia Associated With Uterine Leiomyoma

NCT01553123
View directory record Official record
Conditions
Leiomyomas
Interventions
Ulipristal Acetate, Iron
Drug
Lead sponsor
Watson Pharmaceuticals
Industry
Eligibility
18 Years to 50 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
47
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 41 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2013 · Synced Oct 22, 2026, 7:04 AM EDT
Withdrawn Not applicable Interventional

Capsule Endoscopy Versus Conservative Therapy for Obscure Gastrointestinal Bleeding

NCT01837030
View directory record Official record
Conditions
Hemorrhage, Anemia
Interventions
Ferrous sulfate, Capsule Endoscopy
Dietary Supplement · Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 14, 2018 · Synced Oct 22, 2026, 7:04 AM EDT
Completed Phase 4 Interventional Results available

Comparison of NovaFerrum® vs Ferrous Sulfate Treatment in Young Children With Nutritional Iron Deficiency Anemia

NCT01904864
View directory record Official record
Conditions
Iron Deficiency Anemia
Interventions
elemental iron (NovaFerrum®), elemental iron (Ferrous Sulfate)
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
9 Months to 48 Months
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 14, 2017 · Synced Oct 22, 2026, 7:04 AM 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 22, 2026, 7:04 AM 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 25, 2025 · Synced Oct 22, 2026, 7:04 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Iron Supplements on the Growth of Enteric Pathogens

NCT05762380
View directory record Official record
Conditions
Iron-deficiency, Iron Deficiency Anaemia Due to Dietary Causes, Iron Deficiency Anemia Treatment, Iron Deficiency Anemia
Interventions
Ferrous sulfate, Ferrous sulfate-enriched Aspergillus oryzae (Ao iron)
Dietary Supplement
Lead sponsor
Iowa State University
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Ames, Iowa
Source: ClinicalTrials.gov public record
Updated Mar 9, 2023 · Synced Oct 22, 2026, 7:04 AM 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 30, 2024 · Synced Oct 22, 2026, 7:04 AM EDT