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ClinicalTrials.gov 5 recruiting now later-stage tilt

Iron Deficiency Anemia: later-stage trial registry

5 of 25 indexed Iron Deficiency Anemia trials are currently recruiting, with more weight in Phase 3-4.

Corpus placement: #652 of 28,707 conditions by registered trial count.

25 US clinical trials · 5 currently recruiting · #652 of 28,707 conditions by registered trial count

Iron Deficiency Anemia: 25 US clinical trials tracked, 5 recruiting.

Iron Deficiency Anemia is the subject of 25 registered US clinical trials on ClinicalTrials.gov, 5 of them currently open to new participants. 12 are in Phase 3-4 (later-stage) and 4 in Phase 1-2 (earlier-stage). The most active sponsor is American Regent, running 3 of these trials.

Enrollment posture brief

Registry condition iron-deficiency-anemia

OPEN 5 | RECR 20% | LATE 12 | EARLY 4 | RANK #652 | SPON 3

Nearest open-share peer: Accelerated Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive (20% recruiting · 10 trials)

Alpha-1 Antitrypsin Deficien48%Alcohol Use40%Acute Lymphocytic Leukemia36%Alcohol-Related Disorders36%Iron Deficiency Anemia (this)20%
Open-enrollment share among volume-matched conditions near Iron Deficiency Anemia

Iron Deficiency Anemia lists 5 open slots (20% of 25 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Iron Deficiency Anemia on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Iron Deficiency Anemia is recruiting below its size-band peers.

    5 of 25 indexed trials (20%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Iron Deficiency Anemia trials is spread across many organizations.

    American Regent accounts for 3 of 25 trials (12%). 20 distinct sponsors appear on at least one study for this condition label.

  3. Typical Iron Deficiency Anemia enrolment sits around 79 participants.

    Median target enrolment is 79 among the 25 trials that report a genuine target (sentinel values excluded). 14 of those (56%) plan for fewer than 100 participants.

  4. Iron Deficiency Anemia research is mostly interventional.

    23 interventional and 2 observational studies make up this index (92% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 11Phase 23Phase 310Phase 42

Open and recent trials

25 total, page 1 of 1

RECRUITING Phase 3 300 participants

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

Women and Infants Hospital of Rhode Island

NCT05462704

RECRUITING Phase 2 120 participants

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

University of Washington

NCT05340465

RECRUITING Phase 4 120 participants

Iron Deficiency Anemia (IDA) and the Brain

Children's Hospital Los Angeles

NCT05929729

RECRUITING Phase 3 104 participants

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

Auerbach Hematology Oncology Associates P C

NCT04268849

RECRUITING Phase 3 75 participants

A Study to Evaluate Ferumoxytol for the Treatment of Iron Deficiency Anemia (IDA) in Pediatric Subjects

AMAG Pharmaceuticals

NCT03893045

COMPLETED Phase 3 2,561 participants

Evaluation of Efficacy and Safety of Ferric Carboxymaltose (FCM) in Patients With Iron Deficiency Anemia and Impaired Renal Function

American Regent

NCT00981045

COMPLETED Phase 3 200 participants

Ferric Citrate for the Transition From CKD Stage 4/5 to CKD Stage 5D

Denver Nephrologists, P.C.

NCT02492620

COMPLETED 190 participants

Iron Deficiency in Female State Fair Attendees

University of Minnesota

NCT03228173

COMPLETED Phase 2 146 participants

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

Watson Pharmaceuticals

NCT00223977

COMPLETED Phase 3 123 participants

Incidence of Hypophosphatemia After Treatment With Iron Isomaltoside/Ferric Derisomaltose vs Ferric Carboxymaltose in Subjects With Iron Deficiency Anaemia

Pharmacosmos A/S

NCT03238911

COMPLETED NA 114 participants

Effects of Taking Prenatal Vitamin-mineral Supplements During Lactation on Iron Status and Markers of Oxidation

University of California, Davis

NCT01047098

COMPLETED Phase 3 103 participants

An Extension Trial to Assess the Safety of Re-dosing of Iron Isomaltoside/Ferric Derisomaltose (Monofer®/Monoferric®)

Pharmacosmos A/S

NCT02962648

COMPLETED NA 88 participants

Daily vs Alternate Day Iron Supplementation for Pregnant Women With Iron Deficiency Anemia

Icahn School of Medicine at Mount Sinai

NCT03562143

COMPLETED Phase 3 79 participants

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

American Regent

NCT03523117

COMPLETED 77 participants

Iron Deficiency and FGF23 Regulation in CKD and HF

Northwestern University

NCT03106298

COMPLETED Phase 1 71 participants

A Study Comparing Two Ferric Carboxymaltose Formulations in Patients With Iron Deficiency Anemia

Sandoz

NCT03399084

COMPLETED NA 60 participants

Total Dose Infusion of Ferumoxytol(1020mg) in 15 Minutes for Iron Deficiency Anemia

Auerbach Hematology Oncology Associates P C

NCT01374919

COMPLETED Phase 2 39 participants

The Effect of H. Pylori Infection on Iron Metabolism

Seattle Institute for Biomedical and Clinical Research

NCT00202488

COMPLETED NA 17 participants

Pilot Study of the Effect of Iron Fortified Rice in Iron Deficient Anemic Women

Pennington Biomedical Research Center

NCT01658488

COMPLETED NA 16 participants

EHR-based Patient Identification and Panel Management of Patients With Iron Deficiency Anemia

Northwestern University

NCT05365308

COMPLETED NA 15 participants

Effect of Iron Supplements on the Growth of Enteric Pathogens

Iowa State University

NCT05762380

COMPLETED Phase 4 13 participants

Short-Term Effects & Safety of an Accelerated Intravenous Iron Regimen in Patients With Heart Failure

University of North Carolina, Chapel Hill

NCT01925703

COMPLETED NA 10 participants

Improving the Iron Status of Athletes With Pre-, Pro- and Synbiotics

King's College

NCT06021171

COMPLETED Phase 3 7 participants

Efficacy and Safety of Intravenous Ferric Carboxymaltose in Pediatric Patients With Iron Deficiency Anemia and Unsatisfactory Response Oral Iron Under Study Protocol 1VIT17044

American Regent

NCT04269707

COMPLETED Phase 3 1 participants

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

Baylor College of Medicine

NCT04371536

Phase Distribution

PhaseTrial count
Phase 1 1
Phase 2 3
Phase 3 10
Phase 4 2

Named interventions

Most-linked intervention names on Iron Deficiency Anemia records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Ferric carboxymaltose Drug
4 trials
Iron isomaltoside/ferric derisomaltose Drug
2 trials
Ferric derisomaltose Drug
2 trials
ferumoxytol Drug
2 trials
Ferrous Sulfate Drug
2 trials
Oral Iron Drug
1 trials
Sodium Ferric Gluconate Complex Drug
1 trials
Iron-fortified Rice Other
1 trials

US sites by state

Facility locations filed on Iron Deficiency Anemia trials. A trial with sites in several states counts in each.

Florida 7 trials
Texas 6 trials
California 5 trials
Pennsylvania 4 trials
Louisiana 4 trials
Utah 3 trials
New York 3 trials
Missouri 3 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Iron Deficiency Anemia page

25 registered trials, 5 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

  • 5 Iron Deficiency Anemia trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
  • American Regent sponsors the most Iron Deficiency Anemia trials on record, review their full trial history before evaluating a specific study. See American Regent's trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Iron Deficiency Anemia condition card totals 25 registered trials; most-linked intervention Ferric carboxymaltose; top US site state Florida. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.