Ferumoxytol

Brand Names: Feraheme

Drug Class: Parenteral Iron Replacement

Overview

11 DESCRIPTION Feraheme is an iron replacement product containing ferumoxytol for intravenous infusion. Ferumoxytol is a non-stoichiometric magnetite (superparamagnetic iron oxide) coated with polyglucose sorbitol carboxymethylether. The overall colloidal particle size is 17-31 nm in diameter.

Mechanism of Action

12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action Feraheme consists of a superparamagnetic iron oxide that is coated with a carbohydrate shell, which helps to isolate the bioactive iron from plasma components until the iron-carbohydrate complex enters the reticuloendothelial system macrophages of the liver, spleen and bone marrow. The iron is released from the iron-carbohydrate complex within vesicles in the macrophages. Iron then either enters the intracellular storage iron pool (e.g., ferritin) or is transferred to plasma transferrin for transport to erythroid precursor cells for incorporation into hemoglobin. 12.

Indications

  • 1 INDICATIONS AND USAGE Feraheme is indicated for the treatment of iron deficiency anemia (IDA) in adult patients: • who have intolerance to oral iron or have had unsatisfactory response to oral iron or • who have chronic kidney disease (CKD). Feraheme is an iron replacement product indicated for the treatment of iron deficiency anemia (IDA) in adult patients: • who have intolerance to oral iron or have had unsatisfactory response to oral iron ( 1 ) or • who have chronic kidney disease (CKD). ( 1 )

Common Doses

  • 510 mg
  • 200 mL
  • 8 mg
  • 30 mg

Dosage

2 DOSAGE AND ADMINISTRATION The recommended dose of Feraheme is an initial 510 mg dose followed by a second 510 mg dose 3 to 8 days later. Administer Feraheme as an intravenous infusion in 50-200 mL 0.9% Sodium Chloride Injection, USP or 5% Dextrose Injection, USP over at least 15 minutes. Administer while the patient is in a reclined or semi-reclined position. Feraheme does not contain antimicrobial preservatives. Discard unused portion. Feraheme, when added to intravenous infusion bags containing either 0.

Black Box Warning

WARNING: RISK FOR SERIOUS HYPERSENSITIVITY/ANAPHYLAXIS REACTIONS Fatal and serious hypersensitivity reactions including anaphylaxis have occurred in patients receiving Feraheme. Initial symptoms may include hypotension, syncope, unresponsiveness, cardiac/cardiorespiratory arrest. • Only administer Feraheme as an intravenous infusion over at least 15 minutes and only when personnel and therapies are immediately available for the treatment of anaphylaxis and other hypersensitivity reactions. [ see Warnings and Precautions (5.1) ].

Contraindications

  • 4 CONTRAINDICATIONS Feraheme is contraindicated in patients with: • Known hypersensitivity to Feraheme or any of its components [ see Warnings and Precautions ( 5.1 ) ] • History of allergic reaction to any intravenous iron product [ see Warnings and Precautions ( 5.1 ) ] • Known hypersensitivity to Feraheme or any of its components. ( 4 ) • History of allergic reaction to any intravenous iron product. ( 4 )

Side Effects

  • 6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: • Serious Hypersensitivity Reactions [ see Warnings and Precautions ( 5.1 ) ] • Hypotension [ see Warnings and Precautions ( 5.2 ) ] • Iron Overload [ see Warnings and Precautions ( 5.3 ) ] • Magnetic Resonance (MR) Imaging Test Interference [ see Warnings and Precautions ( 5.4 ) ] The most common adverse reactions (≥ 2%) are diarrhea, headache, nausea, dizziness, hypotension, constipation, and peripheral edema. ( 6.

Interactions

  • 7 DRUG INTERACTIONS Drug-drug interaction studies with Feraheme were not conducted. Feraheme may reduce the absorption of concomitantly administered oral iron preparations.