Elosulfase alfa

FDA label, BioMarin Pharmaceutical Inc., intravenous, effective 2025-10-30. Full label on DailyMed

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From MedlinePlus, U.S. National Library of Medicine

Quoted from the FDA label. Product labels differ by manufacturer and change over time; confirm against the label for the product you are using.

Boxed warning

WARNING: HYPERSENSITIVITY REACTIONS INCLUDING ANAPHYLAXIS and RISK OF ACUTE RESPIRATORY COMPLICATIONS Patients treated with enzyme replacement therapies have experienced life-threatening hypersensitivity reactions, including anaphylaxis. Anaphylaxis has occurred during the early course of enzyme replacement therapy and after extended duration of therapy. Initiate VIMIZIM in a healthcare setting with appropriate medical monitoring and support measures, including access to cardiopulmonary resuscitation equipment. If a severe hypersensitivity reaction (e.g., anaphylaxis) occurs, discontinue VIMIZIM and immediately initiate appropriate medical treatment, including use of epinephrine.

Inform patients of the symptoms of life-threatening hypersensitivity reactions, including anaphylaxis and to seek immediate medical care should symptoms occur [see Warnings and Precautions (5.1) ] . Patients with acute respiratory illness may be at risk of serious acute exacerbation of their respiratory compromise due to hypersensitivity reactions and require additional monitoring [see Warnings and Precautions (5.2) ] . WARNING: HYPERSENSITIVITY REACTIONS INCLUDING ANAPHYLAXIS and RISK OF ACUTE RESPIRATORY COMPLICATIONS See full prescribing information for complete boxed warning .

Anaphylaxis has occurred during the early course of enzyme replacement therapy and after extended duration of therapy. ( 5.1 ) Initiate VIMIZIM in a healthcare setting with appropriate medical monitoring and support measures, including access to cardiopulmonary resuscitation equipment. ( 5.1 ) If a severe hypersensitivity reaction (anaphylaxis) occurs, discontinue VIMIZIM and immediately initiate appropriate medical treatment, including use of epinephrine. ( 5.1 ) Patients with acute respiratory illness may be at risk of serious acute exacerbation of their respiratory compromise due to hypersensitivity reactions, and require additional monitoring ( 5.2 )

Hydrolytic Lysosomal Glycosaminoglycan-specific Enzyme

Dosing in kidney impairment

This label has no separate kidney-impairment dosing section. Check warnings and clinical pharmacology in the full label.

Preparation and administration

Prepare this dose

Your numbers for elosulfase alfa. Take vial strength, diluent, and limits from the label below.

Basis

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Important Administration Instructions Administration of VIMIZIM should be supervised by a healthcare provider knowledgeable in the management of hypersensitivity reactions including anaphylaxis [see Warnings and Precautions ] . Initiate VIMIZIM in a healthcare setting with appropriate medical monitoring and support measures, including access to cardiopulmonary resuscitation [see Warnings and Precautions ] .

This product must be diluted prior to administration and administered using a low-protein binding infusion set equipped with a low-protein binding 0.2 micrometer (µm) in-line filter. Consider pre-medicating with antihistamines, with or without antipyretics, 30 to 60 minutes prior to the start of the infusion [see Warnings and Precautions ] .

Administration Modifications Due to Hypersensitivity Reaction In the event of a severe hypersensitivity reaction (e.g., anaphylaxis), discontinue the VIMIZIM infusion and immediately initiate appropriate medical treatment, including use of epinephrine. In the event of a mild to moderate hypersensitivity reaction, consider slowing or temporarily interrupting the infusion, or administering additional antihistamines, antipyretics, and/or corticosteroids [see Warnings and Precautions ] .

Preparation Instructions Use aseptic technique during preparation. Determine the number of VIMIZIM vials based on the patient's actual body weight in kg and the recommended dose [see Dosage and Administration ] . Remove vials from the refrigerator. Select the appropriate size 0.9% Sodium Chloride Injection, USP infusion bag and calculate the infusion volume based on patient's actual body weight: For patients who weigh less than 25 kg, the final infusion volume should be 100 mL For patients who weigh 25 kg or more, the final infusion volume should be 250 mL.

Withdraw and discard a volume of 0.9% Sodium Chloride Injection, USP from either the 100 mL or 250 mL infusion bag equal to the volume of VIMIZIM to be added. Withdraw the required volume of VIMIZIM from the vial(s) and add to the 0.9% Sodium Chloride Injection, USP infusion bag. Gently rotate the infusion bag to mix the diluted solution.

Avoid vigorous shaking or agitation. Discard unused portion remaining in the vial(s). Visually inspect the solution for particulate matter and discoloration. The solution should be clear to slightly opalescent and colorless to pale yellow. The diluted VIMIZIM solution may contain proteinaceous particles in the form of translucent fibers which will be removed by the in-line filter during infusion.

Discard if opaque particles are present or the solution is discolored.

Administration Instructions Use an infusion set equipped with a low-protein binding 0.2 micrometer (µm) in-line filter to administer VIMIZIM . Do not infuse with other products in the infusion tubing. Compatibility with other products has not been evaluated. [See table below.] [See table below.]

Storage of the Diluted Solution If the diluted VIMIZIM solution is not used immediately: Store the diluted solution refrigerated at 2°C to 8°C (36°F to 46°F) for up to 24 hours or at room temperature between 23°C to 27°C (73°F to 81°F) for up to 24 hours. Diluted VIMIZIM solution must be used within 48 hours, inclusive of total infusion time.

Discard if not used within 48 hours. Do not freeze or shake.

Table 1. Intravenous Infusion Rate for VIMIZIM Based on Patient Weight
Patient Weight (kg)Infusion rate (mL/hour)
Initial Rate (first 15 minutes)Subsequent Rate (next 15 minutes)Subsequent Rate IncrementsIf tolerated, the infusion rate can be increased incrementally up to the maximum infusion rate.Maximum Infusion Rate
Less than 25 kg3 mL/hour6 mL/hour6 mL/hour every 15 minutes36 mL/hour
25 kg or more6 mL/hour12 mL/hour12 mL/hour every 15 minutes72 mL/hour
Table 2. Minimum Infusion Time for VIMIZIM Based on Patient Weight
Patient Weight (kg)Minimum Infusion Time (hours)
Less than 25 kg3.5 hours
25 kg or more4.5 hours

Contraindications

None. None. ( 4 )

Safety data

Reported adverse events (FAERS)

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Source: FDA Adverse Event Reporting System via openFDA

Liver injury (LiverTox)

LiverTox has no chapter for elosulfase alfa. Check the label's hepatic warnings.

Pregnancy and lactation

Pregnancy

8.1 Pregnancy Risk Summary Available data from published case reports, a registry with a pregnancy sub-study and pharmacovigilance reports with VIMIZIM use during pregnancy have not identified a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. Limitations of the available data include a small number of exposed cases and missing data. In animal reproduction studies, no effects on embryo-fetal development were observed in rats given daily administration of elosulfase alfa up to 33 times the human steady-state AUC (area under the concentration-time curve) at the recommended human weekly dose pre-mating and through the period of organogenesis.

No effects on embryo-fetal development were observed in rabbits given daily administration of elosulfase alfa at doses up to 8 times the human steady-state AUC at the recommended weekly dose during organogenesis, which produced maternal toxicity. A dose-dependent increase in stillbirths was observed when elosulfase alfa was administered daily in rats during organogenesis through lactation at doses 5 times the human steady-state AUC at the recommended human weekly dose. An increase in pup mortality was observed at doses producing maternal toxicity. The background risk of major birth defects and miscarriage for the indicated population is unknown.

All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Clinical Considerations Disease-associated maternal and embryo/fetal risk Pregnancy can exacerbate preexisting clinical manifestations of MPS and lead to adverse outcomes for both mother and fetus. Data Animal Data All reproductive studies with rats included pre-treatment with diphenhydramine to prevent or minimize hypersensitivity reactions.

The effects of elosulfase alfa were evaluated based on comparison to a control group treated with diphenhydramine alone. Daily intravenous administration of up to 20 mg/kg elosulfase alfa in rats (33 times the human steady-state AUC at the recommended weekly dose of 2 mg/kg) during a 15-day pre-mating period, mating, and the period of organogenesis, produced no maternal toxicity or effects on embryo-fetal development. Daily intravenous administration of up to 10 mg/kg in rabbits (8 times the human steady-state AUC at the recommended weekly dose) during the period of organogenesis had no effects on embryo-fetal development.…

Breastfeeding (LactMed)

No information is available on the clinical use of elosulfase alfa during breastfeeding. Because it is a large protein molecule with a molecular weight of about 55,000 Da, the amount in milk is likely to be very low and absorption is unlikely because it is probably destroyed in the infant's gastrointestinal tract. If elosulfase alfa is required by the mother, it is not a reason to discontinue breastfeeding. Until more data are available, elosulfase alfa should be used with infant careful monitoring during breastfeeding.

Source: LactMed: Elosulfase Alfa (NICHD, public domain)Revised Aug 15, 2024

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