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ClinicalTrials.gov public records Last synced Oct 9, 2026, 3:53 PM EDT

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Showing 73–96 of 98 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Iron (ferrous sulfate) Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Host Iron Status and Iron Supplement Use on Erythrocytic Stage of Plasmodium Falciparum

NCT01027663
View directory record Official record
Conditions
Iron Deficiency Anemia, Malaria
Interventions
Iron Supplement
Dietary Supplement
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 70 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 8, 2016 · Synced Oct 9, 2026, 3:53 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 9, 2026, 3:53 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 9, 2026, 3:53 PM EDT
Completed Phase 2 Interventional

Iron Treatment of Sleep Disorders in Children With Autism Spectrum Disorder

NCT01745497
View directory record Official record
Conditions
Autism Spectrum Disorder, Insomnia
Interventions
Ferrous sulfate, Placebo
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
2 Years to 10 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
3
States / cities
Aurora, Colorado • Rochester, New York • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 3, 2020 · Synced Oct 9, 2026, 3:53 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 8, 2013 · Synced Oct 9, 2026, 3:53 PM EDT
Completed Not applicable Interventional Results available

Oral Iron for Erythropoietic Protoporphyrias

NCT02979249
View directory record Official record
Conditions
Erythropoietic Protoporphyria, EPP, X-linked Protoporphyria, XLP
Interventions
Oral Iron
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
6
States / cities
Birmingham, Alabama • San Francisco, California • New York, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 11, 2020 · Synced Oct 9, 2026, 3:53 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 9, 2026, 3:53 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Early Iron Exposure on the Gut Microbiota in Young Infants

NCT03828708
View directory record Official record
Conditions
Infant Development
Interventions
Iron in infant formula
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
1 Day to 4 Months
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 2, 2023 · Synced Oct 9, 2026, 3:53 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 9, 2026, 3:53 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 10, 2025 · Synced Oct 9, 2026, 3:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Supplemental Iron Improves Submaximal Exercise Performance in Non-anemic Iron Depleted Women

NCT04363905
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 45 Years · Female only
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000
U.S. locations
1
States / cities
Ithaca, New York
Source: ClinicalTrials.gov public record
Updated Mar 22, 2022 · Synced Oct 9, 2026, 3:53 PM EDT
Terminated Phase 4 Interventional Results available

Oral Iron Frequency for Childhood Restless Leg Syndrome/Periodic Limb Movement Disorder

NCT04610827
View directory record Official record
Conditions
Sleep Disorder, Restless Legs Syndrome, Periodic Limb Movement Sleep Disorder, Iron-deficiency
Interventions
Ferrous sulfate
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
2 Years to 10 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Oct 9, 2026, 3:53 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 14, 2019 · Synced Oct 9, 2026, 3:53 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 16, 2019 · Synced Oct 9, 2026, 3:53 PM 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 9, 2026, 3:53 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

A Pilot Study Comparing Tolerance of Oral Heme Iron Polypeptide With Oral Ionic Iron

NCT01865175
View directory record Official record
Conditions
Iron Deficiency
Interventions
ionic iron, heme iron polypeptide
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
7 Years to 70 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 14, 2016 · Synced Oct 9, 2026, 3:53 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 16, 2024 · Synced Oct 9, 2026, 3:53 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 9, 2026, 3:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Meals to Improve Absorption of Iron Supplements

NCT04793906
View directory record Official record
Conditions
Iron-deficiency, Iron Deficiency Anemia, Iron Deficiency Anemia Treatment
Interventions
Iron supplement with a lunch meal containing beef, Iron supplement with a lunch meal containing plant-based alternative
Other
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Feb 7, 2025 · Synced Oct 9, 2026, 3:53 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 9, 2026, 3:53 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 22, 2025 · Synced Oct 9, 2026, 3:53 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Iron Bioavailability From Cereal-based Foods

NCT05061290
View directory record Official record
Conditions
Iron Bioavailability
Interventions
Control Porridge, Reference Porridge A, Test Porridge B, Test Porridge C, Test Porridge D
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 28, 2022 · Synced Oct 9, 2026, 3:53 PM EDT
Completed Phase 2 Interventional

Hemoglobin and Iron Recovery Study

NCT01555060
View directory record Official record
Conditions
Recovery of Hemoglobin and Iron Stores After Blood Donation
Interventions
ferrous gluconate
Dietary Supplement
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
215 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
4
States / cities
San Francisco, California • Farmington, Connecticut • Pittsburgh, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 23, 2014 · Synced Oct 9, 2026, 3:53 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 3, 2016 · Synced Oct 9, 2026, 3:53 PM EDT