Abstract
Introduction: Worldwide, iron deficiency anemia is the most common nutritional disorder. Treatment with oral iron supplementation may not be well tolerated due to gastrointestinal side effects. Therapy with Intravenous (IV) iron supplementation is more effective and better tolerated, especially in patients with underlying Inflammatory Bowel Disease (IBD) or malignancy. However, Hypersensitivity Reactions (HSR) and anaphylaxis to IV iron have been described.
Methods: We evaluated the literature and developed an eleven step desensitization protocol for ferric carboxymaltose to be administered in high risk patients.
Results: We present the first case series demonstrating the safety of ferric carboxymaltose desensitization in patients with a history of anaphylaxis to IV iron and iron deficiency anemia.
Conclusion: While there are many IV iron formulations available, ferric carboxymaltose can replenish iron stores with fewer doses. Ferric carboxymaltose is contraindicated in patients with prior hypersensitivity reactions to iron formulations. This novel eleven step desensitization protocol was well tolerated without any adverse reactions and allowed the patients to receive iron supplementation when limited therapeutic options existed.
Keywords: Ferric carboxymaltose, hypersensitivity, desensitization, iron deficiency anemia.
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