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Data updated: Mar 10, 2026

NAGLAZYME

GALSULFASE
Approved 2005-05-31

Naglazyme (galsulfase) is a hydrolytic lysosomal glycosaminoglycan-specific enzyme indicated for the treatment of patients with Mucopolysaccharidosis VI (MPS VI), also known as Maroteaux-Lamy syndrome. The medication is used to improve walking and stair-climbing capacity in individuals affected by this condition. By providing a replacement for a deficient enzyme, it addresses the underlying cause of cellular and organ dysfunction associated with the disease.

Source: FDA Label • BIOMARIN • Hydrolytic Lysosomal Glycosaminoglycan-specific Enzyme

How NAGLAZYME Works

Mucopolysaccharidosis VI is characterized by a deficiency in the enzyme N-acetylgalactosamine 4-sulfatase, which leads to the accumulation of the substrate dermatan sulfate throughout the body. Naglazyme provides an exogenous version of this enzyme that is taken up into lysosomes, likely through binding with mannose-6-phosphate receptors. Once inside the lysosomes, the drug increases the catabolism of glycosaminoglycans (GAG). This process helps reduce the accumulation of GAG that otherwise leads to widespread tissue and organ dysfunction.

Source: FDA Label
2
Indications
--
Phase 3 Trials
1
Priority Reviews
20
Years on Market

Details

Status
Prescription
First Approved
2005-05-31
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: GALSULFASE

NAGLAZYME Approval History

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What NAGLAZYME Treats

2 indications

NAGLAZYME is approved for 2 conditions since its original approval in 2005. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Mucopolysaccharidosis VI
  • Maroteaux-Lamy Syndrome
Source: FDA Label

NAGLAZYME Boxed Warning

HYPERSENSITIVITY REACTIONS INCLUDING ANAPHYLAXIS 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 NAGLAZYME in a healthcare setting with appropriate medical monitoring and support measures, including access to cardiopulmonary resuscitation equipment. If a severe hypersensitivity react...

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

NAGLAZYME FDA Label Details

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Indications & Usage

FDA Label (PDF)

NAGLAZYME is indicated for patients with Mucopolysaccharidosis VI (MPS VI, Maroteaux-Lamy syndrome). NAGLAZYME has been shown to improve walking and stair-climbing capacity. NAGLAZYME is a hydrolytic lysosomal glycosaminoglycan (GAG)-specific enzyme indicated for patients with Mucopolysaccharidosis VI (MPS VI; Maroteaux-Lamy syndrome). NAGLAZYME has been shown to improve walking and stair-climbing capacity.

⚠️ BOXED WARNING

WARNING: HYPERSENSITIVITY REACTIONS INCLUDING ANAPHYLAXIS 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...

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.