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Data updated: Mar 10, 2026

TAKHZYRO

LANADELUMAB-FLYO Kallikrein Inhibitors
Approved 2018-08-23

TAKHZYRO (lanadelumab-flyo) is a plasma kallikrein inhibitor indicated for the prevention of hereditary angioedema (HAE) attacks. It is approved for use as a prophylactic treatment in both adult and pediatric patients aged 2 years and older. The medication provides a preventative therapeutic approach for individuals who experience the swelling and pain characteristic of HAE.

Source: FDA Label • DYAX CORP. • Plasma Kallikrein Inhibitor

How TAKHZYRO Works

Lanadelumab-flyo is a monoclonal antibody that binds to plasma kallikrein and inhibits its proteolytic activity. In patients with HAE, the lack of normal regulation leads to uncontrolled plasma kallikrein activity, which cleaves high-molecular-weight-kininogen to produce excess bradykinin. By decreasing this activity, the drug controls the generation of bradykinin, a vasodilator responsible for the increased vascular permeability and swelling seen in HAE attacks.

Source: FDA Label
2
Indications
--
Phase 3 Trials
2
Priority Reviews
7
Years on Market

Details

Status
Prescription
First Approved
2018-08-23
Routes
SUBCUTANEOUS
Dosage Forms
SOLUTION

Companies

Active Ingredient: LANADELUMAB-FLYO

TAKHZYRO Approval History

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What TAKHZYRO Treats

1 indications

TAKHZYRO is approved for 1 conditions since its original approval in 2018. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Hereditary Angioedema
Source: FDA Label
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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.

TAKHZYRO FDA Label Details

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Indications & Usage

FDA Label (PDF)

TAKHZYRO ® is indicated for prophylaxis to prevent attacks of hereditary angioedema (HAE) in adult and pediatric patients aged 2 years and older. TAKHZYRO is a plasma kallikrein inhibitor (monoclonal antibody) indicated for prophylaxis to prevent attacks of hereditary angioedema (HAE) in adult and pediatric patients 2 years and older.

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Data Sources

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