TheraRadar
Data updated: May 26, 2026

VIMIZIM (elosulfase alfa)

Rare Disease Approved 2014-02-14

VIMIZIM is indicated for the treatment of Mucopolysaccharidosis IVA; Morquio A Syndrome.

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

How VIMIZIM Works

VIMIZIM provides the exogenous enzyme N-acetylgalactosamine-6-sulfatase to replace the activity missing in patients with Morquio A syndrome. The enzyme is internalized into cellular lysosomes via mannose-6-phosphate receptors, where it facilitates the catabolism of accumulated glycosaminoglycan substrates, specifically keratan sulfate and chondroitin-6-sulfate. By increasing the breakdown of these substances, the drug reduces lysosomal storage and addresses the underlying metabolic deficiency.

1
Indication
--
Phase 3 Trials
1
Priority Reviews
12
Years on Market

Details

Status
Prescription
First Approved
2014-02-14
Patent Cliff
2021

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Patent cliff and revenue data

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Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: ELOSULFASE ALFA

VIMIZIM Approval History

2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
3 FDA actions from 2014 to 2025
Oct 2025 SUPPL
Label · Labeling
Dec 2019 SUPPL
Label · Labeling
Feb 2014 ORIGINAL Priority
New Drug · Type 1 - New Molecular Entity

What VIMIZIM Treats

2 indications

VIMIZIM is approved for 2 conditions since its original approval in 2014. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Mucopolysaccharidosis IVA
  • Morquio A Syndrome
Source: FDA Label

VIMIZIM Boxed 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 equ...

VIMIZIM Competitive Set

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Three rings of competition based on shared molecular targets and treated indications.

MoA expansion candidates

3

Same target(s), different indications — where else is this mechanism being explored?

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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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.

VIMIZIM FDA Label Details

Indications & Usage

FDA Label (PDF)

VIMIZIM is indicated for the treatment of Mucopolysaccharidosis IVA; Morquio A Syndrome.

⚠️ 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 rep...

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Data Sources

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