Ferric Maltol: A New Oral Iron Formulation for the Treatment of Iron Deficiency in Adults

Objective: To review the pharmacology, efficacy, and safety of ferric maltol (FM), an oral iron formulation, for iron deficiency anemia (IDA).

Data sources: A MEDLINE/PubMed and EMBASE (January 1, 1985, to June 19, 2020) literature search was performed using the terms ferric maltol, accrufer, feraccru, iron maltol, ferric trimaltol, iron deficiency, iron deficiency anemia, inflammatory bowel disease, and chronic kidney disease. Additional data sources included prescribing information, abstracts, and the National Institutes of Health Clinical Trials Registry.

Study selection/data extraction: English language literature evaluating FM pharmacology, pharmacokinetics, efficacy, or safety in the treatment of IDA were reviewed.

Data synthesis: FM is a ferric, non-salt-based oral iron formulation demonstrating improved tolerance in patients with previous intolerance to other iron formulations. Phase 3 trials demonstrated significant improvements in anemia and serum iron parameters in patients with inflammatory bowel disease (IBD) and chronic kidney disease (CKD). Common adverse effects were gastrointestinal intolerance.

Relevance to patient care and clinical practice: FM is an effective and well-tolerated alternative to oral iron salts for patients with IBD or CKD and IDA. Emerging data suggest that FM is noninferior to intravenous (IV) ferric carboxymaltose in patients with IBD and IDA. Prior to selecting FM over IV iron products, consideration should be given to time to normalization of Hb, ease of administration, cost, and tolerability.

Conclusion: FM is a relatively safe, effective oral iron therapy that may be better tolerated than other oral iron formulations. FM may be an effective alternative to IV iron in patients with IBD.

PMID: 32633548 DOI: 10.1177/1060028020941014

Adonice Khoury 1, Kaley A Pagan 1, Michelle Z Farland 1


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