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Data updated: Jun 17, 2026

HYLENEX RECOMBINANT (hyaluronidase recombinant human)

Other Approved 2005-12-02

Hylenex Recombinant is an endoglycosidase used as an adjuvant to improve the delivery and absorption of other substances. It is indicated for subcutaneous fluid administration to achieve hydration and to increase the dispersion of other injected medications. Additionally, the drug is used in subcutaneous urography to improve the resorption of radiopaque agents. It functions as a facilitating agent rather than a primary treatment for a specific disease.

Source: FDA Label • HALOZYME THERAP • Endoglycosidase

How HYLENEX RECOMBINANT Works

This drug works as a dispersion agent by modifying the permeability of connective tissue through the hydrolysis of hyaluronic acid. Hyaluronic acid is a major component of the intercellular ground substance that holds cells together. By splitting the bonds within this acid, the enzyme temporarily decreases the viscosity of the cellular cement. This process facilitates the spread and absorption of injected fluids or localized exudates throughout the tissue.

1
Indication
--
Phase 3 Trials
1
Priority Reviews
20
Years on Market

Details

Status
Prescription
First Approved
2005-12-02
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: HYALURONIDASE RECOMBINANT HUMAN

HYLENEX RECOMBINANT Approval History

2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
15 FDA actions from 2005 to 2024
Jan 2024 SUPPL
Label · Labeling
Jul 2016 SUPPL Priority
Mfg · Manufacturing (CMC)
Jun 2016 SUPPL Priority
Mfg · Manufacturing (CMC)

What HYLENEX RECOMBINANT Treats

1 indications

HYLENEX RECOMBINANT is approved for 1 conditions since its original approval in 2005. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Dehydration
Source: FDA Label

HYLENEX RECOMBINANT 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 HYLENEX RECOMBINANT

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Shared indications:
Dehydration
DELFLEX W/ DEXTROSE 1.5% LOW MAGNESIUM IN PLASTIC CONTAINER
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Shared indications:
Dehydration
DELFLEX W/ DEXTROSE 4.25% LOW MAGNESIUM IN PLASTIC CONTAINER
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Shared indications:
Dehydration
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Active Pipeline

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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.

HYLENEX RECOMBINANT FDA Label Details

Indications & Usage

FDA Label (PDF)

HYLENEX RECOMBINANT is indicated for the treatment of Dehydration.

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Data Sources

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