TheraRadar
Data updated: May 26, 2026

ELELYSO (taliglucerase alfa)

Trial Activity: Declining
Rare Disease Approved 2012-05-01

ELELYSO is indicated for the treatment of Gaucher Disease.

Source: FDA Label • Pfizer • Hydrolytic Lysosomal Glucocerebroside-specific Enzyme

How ELELYSO Works

Type 1 Gaucher disease is caused by a deficiency in the enzyme glucocerebrosidase, which leads to the accumulation of glucocerebroside in the liver, spleen, and bone marrow. ELELYSO acts as a recombinant analog of this enzyme, catalyzing the conversion of the accumulated substrate into glucose and ceramide. The drug enters cellular lysosomes by binding its mannose oligosaccharide chains to specific mannose receptors on the cell surface. This internalization reduces the amount of stored glucocerebroside within the lysosomal compartment of macrophages.

Development Insights

Pfizer conducting 5 trials (83%)
2 indications explored (Focused)
gaucher disease (5 trials)
gaucher disease, type 3 (1 trials)
4
Indications
--
Phase 3 Trials
14
Years on Market

Details

Status
Prescription
First Approved
2012-05-01
Routes
INTRAVENOUS
Dosage Forms
POWDER

Companies

Active Ingredient: TALIGLUCERASE ALFA

ELELYSO Approval History

2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
18 FDA actions from 2012 to 2025 · 2 indication expansions
Dec 2025 SUPPL
Label · Labeling
Jan 2025 SUPPL
Label · Labeling
Jul 2024 SUPPL
Label · Labeling

What ELELYSO Treats

1 indications

ELELYSO is approved for 1 conditions since its original approval in 2012. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Gaucher Disease
Source: FDA Label

ELELYSO 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 ELELYSO in a healthcare setting with appropriate medical monitoring and support measures, including access to cardiopulmonary resuscitation equipment. If a severe hypersensitivity reactio...

ELELYSO Competitive Set

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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.

Drugs Similar to ELELYSO

3 of 4

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

CEREZYME
IMIGLUCERASE
1 shared
Sanofi
Shared indications:
Gaucher Disease
MIGLUSTAT
MIGLUSTAT
1 shared
CHARTWELL RX
Shared indications:
Gaucher Disease
VPRIV
VELAGLUCERASE ALFA
1 shared
Takeda
Shared indications:
Gaucher Disease
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Clinical Trial Registry

6 trials
Trial Sponsor ID Phase Status Title
NCT04002830 results posted WI224302 Ph 4 completed A Multicenter, Safety and Efficacy Study of Taliglucerase Alfa in Subjects With Type 3 Gaucher Disease
NCT01422187 results posted PB-06-007 Ph 3 completed A Multicenter Extension Study of Taliglucerase Alfa in Adult Subjects With Gaucher Disease
NCT01132690 results posted PB-06-005 Ph 4 completed A Safety and Efficacy Study of Two Dose Levels of Taliglucerase Alfa in Pediatric Subjects With Gaucher Disease
NCT00712348 results posted PB-06-002 Ph 3 completed Switchover Trial From Imiglucerase to Plant Cell Expressed Recombinant Human Glucocerebrosidase
NCT00705939 results posted PB-06-003 Ph 3 completed Plant Cell Expressed Recombinant Human Glucocerebrosidase Extension Trial
NCT01411228 results posted PB-06-006 Ph 3 completed A Multicenter Extension Study of Taliglucerase Alfa in Pediatric Subjects With Gaucher Disease
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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.

ELELYSO FDA Label Details

Indications & Usage

FDA Label (PDF)

ELELYSO is indicated for the treatment of Gaucher Disease.

⚠️ 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.

How We Calculate These Metrics

Trial Activity Stage

Measures the current development activity pattern based on trial phases, status, and trends. Important: This measures R&D activity, not commercial lifecycle.

Trial statuses: "Active" means recruiting or ongoing. "Completed" means reached planned endpoint. "Terminated" means stopped early—often due to safety, efficacy, or business reasons.

  • Growth: High proportion of early-phase trials (Phase 1/2), active development
  • Expansion: Significant Phase 3 activity, approaching or pursuing approvals
  • Mature: Substantial Phase 4 post-marketing studies
  • Stable: Mixed phase distribution, steady development
  • Declining: Low active trial ratio, reduced R&D investment