These Highlights Do Not Include All The Information Needed To Use Takhzyro®

These Highlights Do Not Include All The Information Needed To Use Takhzyro®
SPL v14
SPL
SPL Set ID 15f99d8c-efe7-4f7d-aa20-0d0f1e30c6e8
Route
SUBCUTANEOUS
Published
Effective Date 2025-01-28
Document Type 34391-3 HUMAN PRESCRIPTION DRUG LABEL

Drug Facts

Composition & Product

Active Ingredients
Lanadelumab (300 mg)
Inactive Ingredients
Sodium Phosphate, Dibasic, Dihydrate Citric Acid Monohydrate Histidine Sodium Chloride Polysorbate 80

Identifiers & Packaging

Marketing Status
BLA Active Since 2023-02-03

Description

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

Indications and Usage

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

Dosage and Administration

For subcutaneous use only. Recommended Dosage: Adult and pediatric patients 12 years of age and older: administer 300 mg every 2 weeks by the patient or caregiver. Dosing interval every 4 weeks may be considered in some patients. ( 2.1 ) Pediatric patients 6 to less than 12 years of age: administer 150 mg every 2 weeks by a healthcare provider or caregiver. Dosing interval every 4 weeks may be considered in some patients. ( 2.2 ) Pediatric patients 2 to less than 6 years of age: administer 150 mg every 4 weeks by a healthcare provider or caregiver. ( 2.2 ) See Full Prescribing Information for Administration Instructions. ( 2.3 )

Warnings and Precautions

Hypersensitivity reactions have been observed. In case of a severe hypersensitivity reaction, discontinue TAKHZYRO administration and institute appropriate treatment. ( 5.1 )

Contraindications

None.

Adverse Reactions

The most common adverse reactions (≥10%) are injection site reactions, upper respiratory infections, headache, rash, dizziness, diarrhea, and myalgia. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Takeda Pharmaceuticals at 1-877-TAKEDA-7 (1-877-825-3327) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .

Drug Interactions

No dedicated drug interaction studies have been conducted [see Clinical Pharmacology (12.3) ].


Medication Information

Warnings and Precautions

Hypersensitivity reactions have been observed. In case of a severe hypersensitivity reaction, discontinue TAKHZYRO administration and institute appropriate treatment. ( 5.1 )

Indications and Usage

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

Dosage and Administration

For subcutaneous use only. Recommended Dosage: Adult and pediatric patients 12 years of age and older: administer 300 mg every 2 weeks by the patient or caregiver. Dosing interval every 4 weeks may be considered in some patients. ( 2.1 ) Pediatric patients 6 to less than 12 years of age: administer 150 mg every 2 weeks by a healthcare provider or caregiver. Dosing interval every 4 weeks may be considered in some patients. ( 2.2 ) Pediatric patients 2 to less than 6 years of age: administer 150 mg every 4 weeks by a healthcare provider or caregiver. ( 2.2 ) See Full Prescribing Information for Administration Instructions. ( 2.3 )

Contraindications

None.

Adverse Reactions

The most common adverse reactions (≥10%) are injection site reactions, upper respiratory infections, headache, rash, dizziness, diarrhea, and myalgia. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Takeda Pharmaceuticals at 1-877-TAKEDA-7 (1-877-825-3327) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .

Drug Interactions

No dedicated drug interaction studies have been conducted [see Clinical Pharmacology (12.3) ].

Description

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

Section 42229-5

Pediatric Patients 6 to Less Than 12 Years of Age

The recommended starting dosage in pediatric patients 6 to less than 12 years of age is 150 mg administered subcutaneously q2wks. A dosing interval of 150 mg q4wks may be considered if the patient is well-controlled (e.g., attack free) for more than 6 months.

Section 42230-3
This Patient Information has been approved by the U.S. Food and Drug Administration. Revised: 1/2025
PATIENT INFORMATION

TAKHZYRO® (tak-ZYE-roe)

(lanadelumab-flyo)

injection, for subcutaneous use
Read this Patient Information before you start using TAKHZYRO and each time you get a refill. There may be new information. This information does not take the place of talking with your healthcare provider about your medical condition or your treatment.
What is TAKHZYRO?

TAKHZYRO is a prescription medicine used to prevent attacks of Hereditary Angioedema (HAE) in people 2 years of age and older.

It is not known if TAKHZYRO is safe and effective in children under 2 years of age.
Before you use TAKHZYRO, tell your healthcare provider about all of your medical conditions, including if you:
  • are pregnant or planning to become pregnant. It is not known if TAKHZYRO can harm your unborn baby.
  • are breastfeeding or plan to breastfeed. It is not known if TAKHZYRO passes into your breastmilk. Talk to your healthcare provider about the best way to feed your baby while using TAKHZYRO.
Tell your healthcare provider about all the medicines you take, including prescription medicines, over-the-counter medicines, vitamins, or herbal supplements.
How should I use TAKHZYRO?
  • See the detailed Instructions for Use that comes with this patient information leaflet about the right way to prepare and inject TAKHZYRO.
  • Use TAKHZYRO exactly as your healthcare provider tells you to use it.
  • TAKHZYRO is given as an injection under your skin (subcutaneous) by you or a caregiver.
  • Your healthcare provider should show you or your caregiver how to prepare and inject your dose of TAKHZYRO before you inject yourself for the first time.
  • Do not try to inject TAKHZYRO unless you have been trained by your healthcare provider.
  • Self-injection is not recommended in children (2 to less than 12 years).
What are the possible side effects of TAKHZYRO?

TAKHZYRO may cause serious side effects, including allergic reactions.
Allergic reactions may happen with TAKHZYRO. Call your healthcare provider or get emergency help right away if you have any of the following symptoms:
  • wheezing
  • difficulty breathing
  • chest tightness
  • fast heartbeat
  • faintness
  • rash
  • hives
The most common side effects of TAKHZYRO are:
  • injection site reactions (pain, redness, and bruising)
  • upper respiratory infections
  • headache
  • rash
  • dizziness
  • diarrhea
  • muscle aches
Tell your healthcare provider if you have any side effect that bothers you or that does not go away. These are not all the possible side effects of TAKHZYRO. For more information, ask your healthcare provider or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
General information about the safe and effective use of TAKHZYRO.

Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use TAKHZYRO for a condition for which it is not prescribed. Do not give TAKHZYRO to other people, even if they have the same symptoms that you have. It may harm them. You can ask your pharmacist or healthcare provider for information about TAKHZYRO that is written for health professionals.

What are the ingredients in TAKHZYRO?

Active ingredient:
lanadelumab

Inactive ingredients: citric acid monohydrate, L-histidine, sodium chloride, sodium phosphate dibasic dihydrate and water for injection.

Manufactured by:

Takeda Pharmaceuticals U.S.A., Inc.

Cambridge, MA 02142

U.S. License No. 1898

TAKHZYRO is a registered trademark of Dyax Corp. Takeda and

are registered trademarks of Takeda Pharmaceutical Company Limited.

©2025 Takeda Pharmaceuticals U.S.A., Inc. All rights reserved.

For more information, visit www.TAKHZYRO.com or call 1-877-TAKEDA-7 (1-877-825-3327).

Section 44425-7

Storage and Handling

  • Store the prefilled syringes and vials refrigerated at 36°F to 46°F (2°C to 8°C).
  • Do not freeze. Do not shake.
  • Keep the prefilled syringe and vial in the original carton to protect from light.
10 Overdosage

There is no clinical experience with overdosage of TAKHZYRO.

11 Description

Lanadelumab-flyo, a plasma kallikrein inhibitor, is a non-plasma derived, recombinant, fully human, monoclonal antibody (IgG1/κ-light chain) produced in Chinese Hamster Ovary (CHO) cells. Based on the amino acid sequence, the molecular weight of the non-glycosylated lanadelumab-flyo is 146 kDa. The calculated molecular mass of the fully reduced light chain is 23 kDa. The calculated molecular mass of the fully reduced and non-glycosylated heavy chain is 49 kDa.

TAKHZYRO (lanadelumab-flyo) injection is a sterile, preservative-free, clear to slightly opalescent, colorless to slightly yellow solution for subcutaneous use.

Each mL of ready-to-use TAKHZYRO solution contains 150 mg of lanadelumab-flyo, citric acid monohydrate (4.1 mg), L-histidine (7.8 mg), polysorbate 80 (0.1 mg), sodium chloride (5.3 mg), sodium phosphate dibasic dihydrate (5.3 mg), and Water for Injection, USP. The solution has a pH of approximately 6.0.

8.4 Pediatric Use

The safety and effectiveness of TAKHZYRO for prophylaxis to prevent attacks of hereditary angioedema (HAE) have been established in pediatric patients 2 years of age and older.

Use of TAKHZYRO for this indication in patients 12 years of age and older was supported by a subgroup analysis by age of 10 patients aged 12 to <18 years in Trial 1 (a randomized, double-blind, placebo-controlled parallel-group study in adult and pediatric patients 12 years of age and older with HAE). Results of the subgroup analysis by age were consistent with overall study results. An additional 13 pediatric patients aged 12 to <18 years were enrolled in the open-label extension study [see Adverse Reactions (6.1), Clinical Pharmacology (12.3) and Clinical Studies (14)].

Use of TAKHZYRO for this indication in patients 2 to less than 12 years of age was supported by extrapolation of efficacy data from Trial 1, an adequate and well controlled study in adult and pediatric (12 to less than 18 years of age) patients, with additional pharmacokinetic analyses showing similar drug exposures between adults (>18 years of age) and pediatric patients (2 to less than 12 years of age), and safety and pharmacodynamic data from an open-label, multicenter study in pediatric patients with HAE aged 2 to less than 12 years that enrolled 21 patients (4 patients were aged 2 to less than 6 years and 17 patients were 6 to less than 12 years of age) [see Adverse Reactions (6.1) and Clinical Pharmacology (12.3)]. The pharmacodynamic response observed in this trial for pediatric patients 2 to less than 12 years of age was similar to that seen in adult and pediatric patients 12 years of age and older [see Clinical Pharmacology (12.2)].

The safety and effectiveness of TAKHZYRO in pediatric patients less than 2 years of age have not been established.

8.5 Geriatric Use

The safety and effectiveness of TAKHZYRO were evaluated in a subgroup of patients (N=5) aged ≥65 years in Trial 1. Results of the subgroup analysis by age were consistent with overall study results [see Adverse Reactions (6.1), Clinical Pharmacology (12.3) and Clinical Studies (14)].

12.6 Immunogenicity

The observed incidence of anti-drug antibodies is highly dependent on the sensitivity and specificity of the assay. Differences in assay methods preclude meaningful comparisons of the incidence of anti-drug antibodies in the studies described below with the incidence of anti-drug antibodies in other studies, including those of lanadelumab-flyo or of other lanadelumab products.

In Trial 1 with adult and pediatric patients 12 years of age and older, 10 (12%) lanadelumab-flyo-treated and 2 (5%) placebo-treated patients had at least 1 anti-drug antibody (ADA)-positive sample during the 26-week treatment period; antibody titers were low (range: 20 to 1280). The ADA response observed was transient in 2/10 lanadelumab-flyo and 1/2 placebo-treated patients. Pre-existing low titer antibodies were observed in 3 lanadelumab-flyo-treated patients and 1 placebo-treated patient with ADAs. Two patients receiving 150 mg q4wks had low titer antibodies classified as neutralizing.

In an open-label, multicenter study in pediatric patients 2 to less than 12 years of age, 3/20 (15%) lanadelumab-treated patients who completed the study developed ADAs during the 52-week treatment period; all of whom were in the 6 to less than 12 years age group. The ADA response observed was transient in all 3 patients. None of these patients had pre-existing antibodies. One patient had neutralizing antibodies.

The development of ADA including neutralizing antibodies against lanadelumab-flyo did not appear to adversely affect pharmacokinetics (PK), pharmacodynamics (PD), safety or clinical response.

4 Contraindications

None.

6 Adverse Reactions

The most common adverse reactions (≥10%) are injection site reactions, upper respiratory infections, headache, rash, dizziness, diarrhea, and myalgia. (6.1)



To report SUSPECTED ADVERSE REACTIONS, contact Takeda Pharmaceuticals at 1-877-TAKEDA-7 (1-877-825-3327) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

7 Drug Interactions

No dedicated drug interaction studies have been conducted [see Clinical Pharmacology (12.3)].

Instructions for Use

TAKHZYRO® (tak-ZYE-roe)

(lanadelumab-flyo)

injection, for subcutaneous use

single-dose 1 mL prefilled syringe

This Instructions for Use contains information on how to inject TAKHZYRO. Please make sure to read, understand, and follow the Instructions for Use before injecting TAKHZYRO.

A healthcare provider should show you how to prepare and inject TAKHZYRO properly before you use it for the first time. Contact your healthcare provider if you have any questions.

Important information:
  • TAKHZYRO is a ready to use prefilled syringe (Figure A) for injection under the skin (subcutaneous) to be given to children by their healthcare provider or caregiver. Self-injection is not recommended in children (2 to less than 12 years of age).
  • Each TAKHZYRO prefilled syringe contains one 150 mg/1 mL dose. The TAKHZYRO prefilled syringe is for single use only.


Figure A: TAKHZYRO prefilled syringe
Storing TAKHZYRO:
  • Store the TAKHZYRO prefilled syringe in the refrigerator at 36°F to 46°F (2°C to 8°C).

    Do not freeze.
  • Store the TAKHZYRO prefilled syringe in the original carton to protect it from light.
  • Throw away (discard) the TAKHZYRO prefilled syringe if it has been kept out of the refrigerator, frozen, or not kept in the original carton protected from light.
  • Do not shake the TAKHZYRO prefilled syringe.

    Keep the TAKHZYRO prefilled syringe and all medicines out of the reach of children.
Step 1: Prepare for your injection
  • a.
    Gather an alcohol swab, cotton ball or gauze pad, adhesive bandage, and sharps disposal container (Figure B) and place the supplies on a clean, flat, surface in a well-lit area. These supplies are not included in the TAKHZYRO carton.


Figure B: Supplies
  • b.
    Remove the TAKHZYRO prefilled syringe carton from the refrigerator 15 minutes before injecting.
    • Do not use if the seal on the carton is open or broken.
    • Your medicine is sensitive to warm temperatures. Do not use heat sources such as a microwave or hot water to warm your TAKHZYRO prefilled syringe.
  • c.
    Open the carton. Hold the syringe barrel and remove the TAKHZYRO prefilled syringe from the tray (Figure C).
    • Do not remove the needle cap until you are ready to inject.
    • Do not touch or push the plunger rod until you are ready to inject.


Figure C: Remove prefilled syringe
  • d.
    Wash your hands with soap and water (Figure D). Dry your hands completely.
    • Do not touch any surface or body part after washing your hands before the injection.


Figure D: Wash hands
  • e.
    Check the expiration date (EXP) on the syringe barrel (Figure E).
    • Do not use the TAKHZYRO prefilled syringe if the expiration date has passed. If the TAKHZYRO prefilled syringe is expired throw it away (discard) in a sharps container and contact your healthcare provider.


Figure E: Location of expiration date
  • f.
    Inspect the TAKHZYRO prefilled syringe for any damage. The medicine inside the syringe barrel should be colorless to slightly yellow (Figure F).
    • Do not use the TAKHZYRO prefilled syringe if the syringe is damaged or cracked.
    • Do not use the TAKHZYRO prefilled syringe if the medicine is discolored, cloudy, or has flakes or particles in it.
    • You may see air bubbles in the TAKHZYRO prefilled syringe. This is normal and will not affect your dose.
    If you cannot use the prefilled syringe, contact your healthcare provider.


Figure F: Inspect the prefilled syringe
Step 2: Select and prepare injection site
  • a.
    TAKHZYRO should be injected by a healthcare provider or caregiver into the following sites only (Figure G):
    • stomach area (abdomen)
    • thighs
    • upper arms
    • Do not inject into an area where the skin is irritated, red, bruised, or infected.
    • The area you choose for injection should be at least 2 inches away from any scars or belly button (navel).
Important:

Rotate injection sites
to keep skin healthy. Each new injection should be given at least 1 inch from the last site you used.


Figure G: Injection sites
  • b.
    Clean the injection site with an alcohol swab and allow it to dry completely (Figure H).
    • Do not fan or blow on the clean site.
    • Do not touch the clean site again before giving your injection.


Figure H: Clean injection site
  • c.
    Firmly hold the middle of the TAKHZYRO prefilled syringe with one hand, and with the other hand, gently pull the needle cap straight off (Figure I).
    • Do not touch or push the plunger rod until you are ready to inject.
    • Do not use the TAKHZYRO prefilled syringe if it has been dropped without the needle cap on.
    • Do not use the TAKHZYRO prefilled syringe if the needle looks damaged or bent.
    • Do not touch the needle or allow the needle to touch anything.
    You may see air bubbles, this is normal. Do not try to remove the air bubbles.


Figure I: Remove needle cap
  • d.
    Throw away the needle cap in your trash or in your sharps container.
    • Do not recap the needle to avoid a needle-stick injury.
Step 3: Inject TAKHZYRO
  • a.
    Grip the TAKHZYRO prefilled syringe in one hand like a pencil (Figure J). Avoid touching the needle or pushing on the plunger rod.


Figure J: Grip prefilled syringe
  • b.
    With your other hand, gently pinch a 1-inch fold of skin at the cleaned injection site.
    • Keep pinching until the injection is complete and the needle is removed (Figure K).


Figure K: Pinch a 1-inch fold of skin
  • c.
    Using a quick dart-like motion, insert the needle at a 45-to-90-degree angle. Make sure to keep the needle in place (Figure L).

    Important: Inject directly into the fatty layer under the skin (subcutaneous injection).
Figure L: Insert the needle
  • d.
    Slowly push the plunger rod all the way down until it stops (Figure M).

    Important: Do not remove the needle until all of the medicine is injected and the syringe barrel is empty.

    When the injection is complete, you will see the stopper at the bottom of the syringe barrel (Figure N).



    Figure N: Stopper at the bottom of the syringe barrel


Figure M: Push the plunger rod all the way down
  • e.
    Slowly remove the needle while maintaining the syringe at the same angle. Gently release the fold of skin.
  • f.
    Press a cotton ball or gauze pad over the injection site if needed and hold for 10 seconds.
    • Do not rub the injection site. There may be a small amount of blood where you injected. This is normal.
    • Cover the injection site with an adhesive bandage if needed.
Step 4: Throw away (dispose of) TAKHZYRO prefilled syringe
  • a.
    Put your used TAKHZYRO prefilled syringe in a sharps disposal container right away after use (Figure O).
    • Do not recap the needle to avoid a needle-stick injury.
    • Do not reuse the TAKHZYRO prefilled syringe or any of your injection supplies.
    • Do not throw away (dispose of) the TAKHZYRO prefilled syringe in your household trash.
    • Do not touch the needle.

FDA-cleared sharps containers are generally available through pharmacies, medical supply companies, healthcare providers, and online.



Figure O: Dispose in a sharps container
  •  
    • If you do not have an FDA-cleared sharps container, you may use a household container that is:
      • made of a heavy-duty plastic
      • can be closed with a tight-fitting, puncture-resistant lid, without sharps being able to come out,
      • upright and stable during use
      • leak-resistant, and
      • properly labeled to warn of hazardous waste inside the container.
    • When your sharps disposal container is almost full, you will need to follow your community guidelines for the right way to dispose of your sharps disposal container. There may be state or local laws about how you should throw away used needles and syringes. For more information about safe sharps disposal, and for specific information about sharps disposal in the state that you live in, go to FDA's website at:

      http://www.fda.gov/safesharpsdisposal.
    • Important: Always keep the sharps disposal container out of the reach of children.
    • Do not dispose of your used sharps disposal container in your household trash unless your community guidelines permit this. Do not recycle your used sharps disposal container.

Questions?

For product or service-related questions, call 1-877-TAKEDA-7 (1-877-825-3327) or go to www.TAKHZYRO.com.

Manufactured by:

Takeda Pharmaceuticals U.S.A., Inc.

Cambridge, MA 02142

U.S. License No. 1898

TAKHZYRO is a registered trademark of Dyax Corp. Takeda and

are registered trademarks of Takeda Pharmaceutical Company Limited.

©2025 Takeda Pharmaceuticals U.S.A., Inc. All rights reserved.

This Instructions for Use has been approved by the U.S. Food and Drug Administration.

Approved: 1/2025

12.2 Pharmacodynamics

In adult and pediatric (12 to less than 18 years) patients, concentration-dependent inhibition of plasma kallikrein, measured as reduction of cHMWK levels, was demonstrated after subcutaneous administration of TAKHZYRO 150 mg q4wks, 300 mg q4wks or 300 mg q2wks in patients with HAE.

For pediatric patients 2 to less than 6 years (150 mg q4wks) and 6 to less than 12 years (150 mg q2wks), the observed mean percent change from baseline cHMWK levels was similar to that observed in adult and pediatric (12 to less than 18 years) patients (300 mg q2wks or 300 mg q4wks).

12.3 Pharmacokinetics

Following subcutaneous administration, the pharmacokinetics of lanadelumab-flyo was approximately dose-proportional in the therapeutic dose range in patients with HAE (Table 2). The pharmacokinetic properties and exposure (steady state) of lanadelumab-flyo in HAE patients, following subcutaneous administration of 150 mg q4wks, 300 mg q4wks and 300 mg q2wks, are provided in Table 2. Following subcutaneous administration of TAKHZYRO, peak plasma concentrations are reached within 5 days, and terminal elimination half-life is ~2 weeks. The anticipated time to reach steady state concentration was approximately 70 days. At steady-state, the mean accumulation ratio is approximately 1.44, 1.42, and 2.43 for dosing regimen of 150 mg q4wks, 300 mg q4wks and 300 mg q2wks, respectively.

Table 2 Mean (SD) Pharmacokinetic Parameters of Lanadelumab-flyo Following Subcutaneous Administration (Trial 1)
Pharmacokinetic Parameters Lanadelumab-flyo
150 mg q4wks

(N=28)
300 mg q4wks

(N=29)
300 mg q2wks

(N=27)
CL/F: apparent clearance; Vc/F: apparent volume of distribution; AUCtau,ss: area under the curve over the dosing interval at steady-state; Cmax,ss: maximum concentration at steady-state; Cmin,ss: minimum concentration at steady state; Tmax: time to maximum concentration; t1/2 terminal elimination half-life.
CL/F

(L/day)
0.667 (0.162) 0.742 (0.239) 0.809 (0.370)
Vc/F

(L)
14.1 (2.93) 14.9 (4.45) 16.6 (4.79)
AUCtau,ss

(µg*day/mL)
233 (56.6) 441(137) 408 (138)
Cmax,ss

(µg/mL)
12.0 (3.01) 23.3 (7.94) 34.4 (11.2)
Cmin,ss

(µg/mL)
4.81 (1.40) 8.77 (2.80) 25.4 (9.18)
tmax

(day)
5.17 (1.09) 5.17 (1.12) 4.11 (0.377)
t1/2

(day)
14.9 (2.00) 14.2 (1.89) 15.0 (2.48)
1 Indications and Usage

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

12.1 Mechanism of Action

Lanadelumab-flyo is a fully human monoclonal antibody (IgG1/κ-light chain) that binds plasma kallikrein and inhibits its proteolytic activity. Plasma kallikrein is a protease that cleaves high-molecular-weight-kininogen (HMWK) to generate cleaved HMWK (cHMWK) and bradykinin, a potent vasodilator that increases vascular permeability resulting in swelling and pain associated with HAE. In patients with HAE due to C1-inhibitor (C1-INH) deficiency or dysfunction, normal regulation of plasma kallikrein activity is not present, which leads to uncontrolled increases in plasma kallikrein activity and results in angioedema attacks. Lanadelumab-flyo decreases plasma kallikrein activity to control excess bradykinin generation in patients with HAE.

5 Warnings and Precautions

Hypersensitivity reactions have been observed. In case of a severe hypersensitivity reaction, discontinue TAKHZYRO administration and institute appropriate treatment. (5.1)

2 Dosage and Administration

For subcutaneous use only.

Recommended Dosage:

  • Adult and pediatric patients 12 years of age and older: administer 300 mg every 2 weeks by the patient or caregiver. Dosing interval every 4 weeks may be considered in some patients. (2.1)
  • Pediatric patients 6 to less than 12 years of age: administer 150 mg every 2 weeks by a healthcare provider or caregiver. Dosing interval every 4 weeks may be considered in some patients. (2.2)
  • Pediatric patients 2 to less than 6 years of age: administer 150 mg every 4 weeks by a healthcare provider or caregiver. (2.2)
  • See Full Prescribing Information for Administration Instructions. (2.3)
3 Dosage Forms and Strengths

TAKHZYRO is a sterile, preservative-free, clear to slightly opalescent, colorless to slightly yellow solution available in the following presentations.

  • Injection: 150 mg/1 mL (150 mg/mL) solution in a single-dose prefilled syringe
  • Injection: 300 mg/2 mL (150 mg/mL) solution in a single-dose prefilled syringe
  • Injection: 300 mg/2 mL (150 mg/mL) solution in a single-dose vial
5.1 Hypersensitivity Reactions

Hypersensitivity reactions have been observed. In case of a severe hypersensitivity reaction, discontinue TAKHZYRO administration and institute appropriate treatment.

6.1 Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

17 Patient Counseling Information

Advise the patient to read the FDA-approved patient labeling (Patient Information and Instructions for Use).

Principal Display Panel 2 Ml Vial Carton

Rx Only

NDC 47783-644-01

TAKHZYRO®

(lanadelumab-flyo)

injection

300 mg/2 mL (150 mg/mL)

Single-dose Vial, for Subcutaneous use only.

2 mL

1 single-dose vial.

Takeda

Principal Display Panel 2 Ml Syringe Carton

NDC 47783-646-01

PREFILLED

SYRINGE

TAKHZYRO ®

(lanadelumab-flyo)

injection

300 mg/2 mL (150 mg/mL)

1 single-dose prefilled syringe.

For Subcutaneous use only.

Must be refrigerated, store at 36°F to 46°F (2°C to 8°C)

in the original carton to protect from light. Do not freeze.

Do not shake. Keep out of reach of children.

2 mL

Single-dose syringe

Rx Only

2.3 Preparation and Administration Instructions

TAKHZYRO is administered subcutaneously only.

TAKHZYRO is intended for administration by a healthcare provider, patient or caregiver.

The patient or caregiver should be trained in subcutaneous injection technique by a healthcare professional.

  • Adult and pediatric patients 12 years of age and older: TAKHZYRO may be administered by the patient or caregiver.
  • Pediatric patients 2 to less than 12 years of age: TAKHZYRO should be administered by a healthcare provider or caregiver.

Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Do not use TAKHZYRO if the solution appears discolored or contains visible particles. TAKHZYRO is a clear to slightly opalescent, colorless to slightly yellow solution.

Principal Display Panel 150 Mg/ml Syringe Label

NDC 47783-645-01

TAKHZYRO®

(lanadelumab-flyo)

injection

150 mg/mL

For Subcutaneous use only.

Single-dose prefilled syringe

Store refrigerated at 36°F to 46°F (2°C to 8°C).

Takeda Pharmaceuticals U.S.A., Inc. | U.S. License No. 1898

LOT

EXP

Rx Only

0757712

Principal Display Panel 150 Mg/ml Syringe Carton

NDC 47783-645-01

PREFILLED

SYRINGE

TAKHZYRO ®

(lanadelumab-flyo)

injection

150 mg/mL

Attention: For pediatric use (2 to less than 12 years)

For Subcutaneous use only.

1 single-dose prefilled syringe.

Must be refrigerated, store at 36°F to 46°F (2°C to 8°C)

in the original carton to protect from light. Do not freeze.

Do not shake. Keep out of reach of children.

1 mL

Single-dose syringe

Rx Only

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility

Animal studies have not been conducted to evaluate the carcinogenic potential of lanadelumab-flyo. Published literature supports bradykinin, which is elevated in HAE, as a pro-tumorigenic molecule. However, the malignancy risk in humans from an antibody that inhibits plasma kallikrein activity, such as lanadelumab-flyo, which lowers bradykinin levels, is currently unknown.

Male and female fertility were unaffected based upon no observed adverse histopathological findings in the reproductive organs from sexually mature cynomolgus monkeys that received lanadelumab-flyo for 13 weeks at subcutaneous doses up to 50 mg/kg/week (resulting in approximately 22 times the exposure at the MRHD on an AUC basis).

2.1 Recommended Dosage for Adult and Pediatric Patients 12 Years of Age and Older

The recommended starting dosage in adult and pediatric patients 12 years of age and older is 300 mg administered subcutaneously every 2 weeks (q2wks). A dosing interval of 300 mg every 4 weeks (q4wks) is also effective and may be considered if the patient is well-controlled (e.g., attack free) for more than 6 months.


Structured Label Content

Section 42229-5 (42229-5)

Pediatric Patients 6 to Less Than 12 Years of Age

The recommended starting dosage in pediatric patients 6 to less than 12 years of age is 150 mg administered subcutaneously q2wks. A dosing interval of 150 mg q4wks may be considered if the patient is well-controlled (e.g., attack free) for more than 6 months.

Section 42230-3 (42230-3)
This Patient Information has been approved by the U.S. Food and Drug Administration. Revised: 1/2025
PATIENT INFORMATION

TAKHZYRO® (tak-ZYE-roe)

(lanadelumab-flyo)

injection, for subcutaneous use
Read this Patient Information before you start using TAKHZYRO and each time you get a refill. There may be new information. This information does not take the place of talking with your healthcare provider about your medical condition or your treatment.
What is TAKHZYRO?

TAKHZYRO is a prescription medicine used to prevent attacks of Hereditary Angioedema (HAE) in people 2 years of age and older.

It is not known if TAKHZYRO is safe and effective in children under 2 years of age.
Before you use TAKHZYRO, tell your healthcare provider about all of your medical conditions, including if you:
  • are pregnant or planning to become pregnant. It is not known if TAKHZYRO can harm your unborn baby.
  • are breastfeeding or plan to breastfeed. It is not known if TAKHZYRO passes into your breastmilk. Talk to your healthcare provider about the best way to feed your baby while using TAKHZYRO.
Tell your healthcare provider about all the medicines you take, including prescription medicines, over-the-counter medicines, vitamins, or herbal supplements.
How should I use TAKHZYRO?
  • See the detailed Instructions for Use that comes with this patient information leaflet about the right way to prepare and inject TAKHZYRO.
  • Use TAKHZYRO exactly as your healthcare provider tells you to use it.
  • TAKHZYRO is given as an injection under your skin (subcutaneous) by you or a caregiver.
  • Your healthcare provider should show you or your caregiver how to prepare and inject your dose of TAKHZYRO before you inject yourself for the first time.
  • Do not try to inject TAKHZYRO unless you have been trained by your healthcare provider.
  • Self-injection is not recommended in children (2 to less than 12 years).
What are the possible side effects of TAKHZYRO?

TAKHZYRO may cause serious side effects, including allergic reactions.
Allergic reactions may happen with TAKHZYRO. Call your healthcare provider or get emergency help right away if you have any of the following symptoms:
  • wheezing
  • difficulty breathing
  • chest tightness
  • fast heartbeat
  • faintness
  • rash
  • hives
The most common side effects of TAKHZYRO are:
  • injection site reactions (pain, redness, and bruising)
  • upper respiratory infections
  • headache
  • rash
  • dizziness
  • diarrhea
  • muscle aches
Tell your healthcare provider if you have any side effect that bothers you or that does not go away. These are not all the possible side effects of TAKHZYRO. For more information, ask your healthcare provider or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
General information about the safe and effective use of TAKHZYRO.

Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use TAKHZYRO for a condition for which it is not prescribed. Do not give TAKHZYRO to other people, even if they have the same symptoms that you have. It may harm them. You can ask your pharmacist or healthcare provider for information about TAKHZYRO that is written for health professionals.

What are the ingredients in TAKHZYRO?

Active ingredient:
lanadelumab

Inactive ingredients: citric acid monohydrate, L-histidine, sodium chloride, sodium phosphate dibasic dihydrate and water for injection.

Manufactured by:

Takeda Pharmaceuticals U.S.A., Inc.

Cambridge, MA 02142

U.S. License No. 1898

TAKHZYRO is a registered trademark of Dyax Corp. Takeda and

are registered trademarks of Takeda Pharmaceutical Company Limited.

©2025 Takeda Pharmaceuticals U.S.A., Inc. All rights reserved.

For more information, visit www.TAKHZYRO.com or call 1-877-TAKEDA-7 (1-877-825-3327).

Section 44425-7 (44425-7)

Storage and Handling

  • Store the prefilled syringes and vials refrigerated at 36°F to 46°F (2°C to 8°C).
  • Do not freeze. Do not shake.
  • Keep the prefilled syringe and vial in the original carton to protect from light.
10 Overdosage (10 OVERDOSAGE)

There is no clinical experience with overdosage of TAKHZYRO.

11 Description (11 DESCRIPTION)

Lanadelumab-flyo, a plasma kallikrein inhibitor, is a non-plasma derived, recombinant, fully human, monoclonal antibody (IgG1/κ-light chain) produced in Chinese Hamster Ovary (CHO) cells. Based on the amino acid sequence, the molecular weight of the non-glycosylated lanadelumab-flyo is 146 kDa. The calculated molecular mass of the fully reduced light chain is 23 kDa. The calculated molecular mass of the fully reduced and non-glycosylated heavy chain is 49 kDa.

TAKHZYRO (lanadelumab-flyo) injection is a sterile, preservative-free, clear to slightly opalescent, colorless to slightly yellow solution for subcutaneous use.

Each mL of ready-to-use TAKHZYRO solution contains 150 mg of lanadelumab-flyo, citric acid monohydrate (4.1 mg), L-histidine (7.8 mg), polysorbate 80 (0.1 mg), sodium chloride (5.3 mg), sodium phosphate dibasic dihydrate (5.3 mg), and Water for Injection, USP. The solution has a pH of approximately 6.0.

8.4 Pediatric Use

The safety and effectiveness of TAKHZYRO for prophylaxis to prevent attacks of hereditary angioedema (HAE) have been established in pediatric patients 2 years of age and older.

Use of TAKHZYRO for this indication in patients 12 years of age and older was supported by a subgroup analysis by age of 10 patients aged 12 to <18 years in Trial 1 (a randomized, double-blind, placebo-controlled parallel-group study in adult and pediatric patients 12 years of age and older with HAE). Results of the subgroup analysis by age were consistent with overall study results. An additional 13 pediatric patients aged 12 to <18 years were enrolled in the open-label extension study [see Adverse Reactions (6.1), Clinical Pharmacology (12.3) and Clinical Studies (14)].

Use of TAKHZYRO for this indication in patients 2 to less than 12 years of age was supported by extrapolation of efficacy data from Trial 1, an adequate and well controlled study in adult and pediatric (12 to less than 18 years of age) patients, with additional pharmacokinetic analyses showing similar drug exposures between adults (>18 years of age) and pediatric patients (2 to less than 12 years of age), and safety and pharmacodynamic data from an open-label, multicenter study in pediatric patients with HAE aged 2 to less than 12 years that enrolled 21 patients (4 patients were aged 2 to less than 6 years and 17 patients were 6 to less than 12 years of age) [see Adverse Reactions (6.1) and Clinical Pharmacology (12.3)]. The pharmacodynamic response observed in this trial for pediatric patients 2 to less than 12 years of age was similar to that seen in adult and pediatric patients 12 years of age and older [see Clinical Pharmacology (12.2)].

The safety and effectiveness of TAKHZYRO in pediatric patients less than 2 years of age have not been established.

8.5 Geriatric Use

The safety and effectiveness of TAKHZYRO were evaluated in a subgroup of patients (N=5) aged ≥65 years in Trial 1. Results of the subgroup analysis by age were consistent with overall study results [see Adverse Reactions (6.1), Clinical Pharmacology (12.3) and Clinical Studies (14)].

12.6 Immunogenicity

The observed incidence of anti-drug antibodies is highly dependent on the sensitivity and specificity of the assay. Differences in assay methods preclude meaningful comparisons of the incidence of anti-drug antibodies in the studies described below with the incidence of anti-drug antibodies in other studies, including those of lanadelumab-flyo or of other lanadelumab products.

In Trial 1 with adult and pediatric patients 12 years of age and older, 10 (12%) lanadelumab-flyo-treated and 2 (5%) placebo-treated patients had at least 1 anti-drug antibody (ADA)-positive sample during the 26-week treatment period; antibody titers were low (range: 20 to 1280). The ADA response observed was transient in 2/10 lanadelumab-flyo and 1/2 placebo-treated patients. Pre-existing low titer antibodies were observed in 3 lanadelumab-flyo-treated patients and 1 placebo-treated patient with ADAs. Two patients receiving 150 mg q4wks had low titer antibodies classified as neutralizing.

In an open-label, multicenter study in pediatric patients 2 to less than 12 years of age, 3/20 (15%) lanadelumab-treated patients who completed the study developed ADAs during the 52-week treatment period; all of whom were in the 6 to less than 12 years age group. The ADA response observed was transient in all 3 patients. None of these patients had pre-existing antibodies. One patient had neutralizing antibodies.

The development of ADA including neutralizing antibodies against lanadelumab-flyo did not appear to adversely affect pharmacokinetics (PK), pharmacodynamics (PD), safety or clinical response.

4 Contraindications (4 CONTRAINDICATIONS)

None.

6 Adverse Reactions (6 ADVERSE REACTIONS)

The most common adverse reactions (≥10%) are injection site reactions, upper respiratory infections, headache, rash, dizziness, diarrhea, and myalgia. (6.1)



To report SUSPECTED ADVERSE REACTIONS, contact Takeda Pharmaceuticals at 1-877-TAKEDA-7 (1-877-825-3327) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

7 Drug Interactions (7 DRUG INTERACTIONS)

No dedicated drug interaction studies have been conducted [see Clinical Pharmacology (12.3)].

Instructions for Use (INSTRUCTIONS FOR USE)

TAKHZYRO® (tak-ZYE-roe)

(lanadelumab-flyo)

injection, for subcutaneous use

single-dose 1 mL prefilled syringe

This Instructions for Use contains information on how to inject TAKHZYRO. Please make sure to read, understand, and follow the Instructions for Use before injecting TAKHZYRO.

A healthcare provider should show you how to prepare and inject TAKHZYRO properly before you use it for the first time. Contact your healthcare provider if you have any questions.

Important information:
  • TAKHZYRO is a ready to use prefilled syringe (Figure A) for injection under the skin (subcutaneous) to be given to children by their healthcare provider or caregiver. Self-injection is not recommended in children (2 to less than 12 years of age).
  • Each TAKHZYRO prefilled syringe contains one 150 mg/1 mL dose. The TAKHZYRO prefilled syringe is for single use only.


Figure A: TAKHZYRO prefilled syringe
Storing TAKHZYRO:
  • Store the TAKHZYRO prefilled syringe in the refrigerator at 36°F to 46°F (2°C to 8°C).

    Do not freeze.
  • Store the TAKHZYRO prefilled syringe in the original carton to protect it from light.
  • Throw away (discard) the TAKHZYRO prefilled syringe if it has been kept out of the refrigerator, frozen, or not kept in the original carton protected from light.
  • Do not shake the TAKHZYRO prefilled syringe.

    Keep the TAKHZYRO prefilled syringe and all medicines out of the reach of children.
Step 1: Prepare for your injection
  • a.
    Gather an alcohol swab, cotton ball or gauze pad, adhesive bandage, and sharps disposal container (Figure B) and place the supplies on a clean, flat, surface in a well-lit area. These supplies are not included in the TAKHZYRO carton.


Figure B: Supplies
  • b.
    Remove the TAKHZYRO prefilled syringe carton from the refrigerator 15 minutes before injecting.
    • Do not use if the seal on the carton is open or broken.
    • Your medicine is sensitive to warm temperatures. Do not use heat sources such as a microwave or hot water to warm your TAKHZYRO prefilled syringe.
  • c.
    Open the carton. Hold the syringe barrel and remove the TAKHZYRO prefilled syringe from the tray (Figure C).
    • Do not remove the needle cap until you are ready to inject.
    • Do not touch or push the plunger rod until you are ready to inject.


Figure C: Remove prefilled syringe
  • d.
    Wash your hands with soap and water (Figure D). Dry your hands completely.
    • Do not touch any surface or body part after washing your hands before the injection.


Figure D: Wash hands
  • e.
    Check the expiration date (EXP) on the syringe barrel (Figure E).
    • Do not use the TAKHZYRO prefilled syringe if the expiration date has passed. If the TAKHZYRO prefilled syringe is expired throw it away (discard) in a sharps container and contact your healthcare provider.


Figure E: Location of expiration date
  • f.
    Inspect the TAKHZYRO prefilled syringe for any damage. The medicine inside the syringe barrel should be colorless to slightly yellow (Figure F).
    • Do not use the TAKHZYRO prefilled syringe if the syringe is damaged or cracked.
    • Do not use the TAKHZYRO prefilled syringe if the medicine is discolored, cloudy, or has flakes or particles in it.
    • You may see air bubbles in the TAKHZYRO prefilled syringe. This is normal and will not affect your dose.
    If you cannot use the prefilled syringe, contact your healthcare provider.


Figure F: Inspect the prefilled syringe
Step 2: Select and prepare injection site
  • a.
    TAKHZYRO should be injected by a healthcare provider or caregiver into the following sites only (Figure G):
    • stomach area (abdomen)
    • thighs
    • upper arms
    • Do not inject into an area where the skin is irritated, red, bruised, or infected.
    • The area you choose for injection should be at least 2 inches away from any scars or belly button (navel).
Important:

Rotate injection sites
to keep skin healthy. Each new injection should be given at least 1 inch from the last site you used.


Figure G: Injection sites
  • b.
    Clean the injection site with an alcohol swab and allow it to dry completely (Figure H).
    • Do not fan or blow on the clean site.
    • Do not touch the clean site again before giving your injection.


Figure H: Clean injection site
  • c.
    Firmly hold the middle of the TAKHZYRO prefilled syringe with one hand, and with the other hand, gently pull the needle cap straight off (Figure I).
    • Do not touch or push the plunger rod until you are ready to inject.
    • Do not use the TAKHZYRO prefilled syringe if it has been dropped without the needle cap on.
    • Do not use the TAKHZYRO prefilled syringe if the needle looks damaged or bent.
    • Do not touch the needle or allow the needle to touch anything.
    You may see air bubbles, this is normal. Do not try to remove the air bubbles.


Figure I: Remove needle cap
  • d.
    Throw away the needle cap in your trash or in your sharps container.
    • Do not recap the needle to avoid a needle-stick injury.
Step 3: Inject TAKHZYRO
  • a.
    Grip the TAKHZYRO prefilled syringe in one hand like a pencil (Figure J). Avoid touching the needle or pushing on the plunger rod.


Figure J: Grip prefilled syringe
  • b.
    With your other hand, gently pinch a 1-inch fold of skin at the cleaned injection site.
    • Keep pinching until the injection is complete and the needle is removed (Figure K).


Figure K: Pinch a 1-inch fold of skin
  • c.
    Using a quick dart-like motion, insert the needle at a 45-to-90-degree angle. Make sure to keep the needle in place (Figure L).

    Important: Inject directly into the fatty layer under the skin (subcutaneous injection).
Figure L: Insert the needle
  • d.
    Slowly push the plunger rod all the way down until it stops (Figure M).

    Important: Do not remove the needle until all of the medicine is injected and the syringe barrel is empty.

    When the injection is complete, you will see the stopper at the bottom of the syringe barrel (Figure N).



    Figure N: Stopper at the bottom of the syringe barrel


Figure M: Push the plunger rod all the way down
  • e.
    Slowly remove the needle while maintaining the syringe at the same angle. Gently release the fold of skin.
  • f.
    Press a cotton ball or gauze pad over the injection site if needed and hold for 10 seconds.
    • Do not rub the injection site. There may be a small amount of blood where you injected. This is normal.
    • Cover the injection site with an adhesive bandage if needed.
Step 4: Throw away (dispose of) TAKHZYRO prefilled syringe
  • a.
    Put your used TAKHZYRO prefilled syringe in a sharps disposal container right away after use (Figure O).
    • Do not recap the needle to avoid a needle-stick injury.
    • Do not reuse the TAKHZYRO prefilled syringe or any of your injection supplies.
    • Do not throw away (dispose of) the TAKHZYRO prefilled syringe in your household trash.
    • Do not touch the needle.

FDA-cleared sharps containers are generally available through pharmacies, medical supply companies, healthcare providers, and online.



Figure O: Dispose in a sharps container
  •  
    • If you do not have an FDA-cleared sharps container, you may use a household container that is:
      • made of a heavy-duty plastic
      • can be closed with a tight-fitting, puncture-resistant lid, without sharps being able to come out,
      • upright and stable during use
      • leak-resistant, and
      • properly labeled to warn of hazardous waste inside the container.
    • When your sharps disposal container is almost full, you will need to follow your community guidelines for the right way to dispose of your sharps disposal container. There may be state or local laws about how you should throw away used needles and syringes. For more information about safe sharps disposal, and for specific information about sharps disposal in the state that you live in, go to FDA's website at:

      http://www.fda.gov/safesharpsdisposal.
    • Important: Always keep the sharps disposal container out of the reach of children.
    • Do not dispose of your used sharps disposal container in your household trash unless your community guidelines permit this. Do not recycle your used sharps disposal container.

Questions?

For product or service-related questions, call 1-877-TAKEDA-7 (1-877-825-3327) or go to www.TAKHZYRO.com.

Manufactured by:

Takeda Pharmaceuticals U.S.A., Inc.

Cambridge, MA 02142

U.S. License No. 1898

TAKHZYRO is a registered trademark of Dyax Corp. Takeda and

are registered trademarks of Takeda Pharmaceutical Company Limited.

©2025 Takeda Pharmaceuticals U.S.A., Inc. All rights reserved.

This Instructions for Use has been approved by the U.S. Food and Drug Administration.

Approved: 1/2025

12.2 Pharmacodynamics

In adult and pediatric (12 to less than 18 years) patients, concentration-dependent inhibition of plasma kallikrein, measured as reduction of cHMWK levels, was demonstrated after subcutaneous administration of TAKHZYRO 150 mg q4wks, 300 mg q4wks or 300 mg q2wks in patients with HAE.

For pediatric patients 2 to less than 6 years (150 mg q4wks) and 6 to less than 12 years (150 mg q2wks), the observed mean percent change from baseline cHMWK levels was similar to that observed in adult and pediatric (12 to less than 18 years) patients (300 mg q2wks or 300 mg q4wks).

12.3 Pharmacokinetics

Following subcutaneous administration, the pharmacokinetics of lanadelumab-flyo was approximately dose-proportional in the therapeutic dose range in patients with HAE (Table 2). The pharmacokinetic properties and exposure (steady state) of lanadelumab-flyo in HAE patients, following subcutaneous administration of 150 mg q4wks, 300 mg q4wks and 300 mg q2wks, are provided in Table 2. Following subcutaneous administration of TAKHZYRO, peak plasma concentrations are reached within 5 days, and terminal elimination half-life is ~2 weeks. The anticipated time to reach steady state concentration was approximately 70 days. At steady-state, the mean accumulation ratio is approximately 1.44, 1.42, and 2.43 for dosing regimen of 150 mg q4wks, 300 mg q4wks and 300 mg q2wks, respectively.

Table 2 Mean (SD) Pharmacokinetic Parameters of Lanadelumab-flyo Following Subcutaneous Administration (Trial 1)
Pharmacokinetic Parameters Lanadelumab-flyo
150 mg q4wks

(N=28)
300 mg q4wks

(N=29)
300 mg q2wks

(N=27)
CL/F: apparent clearance; Vc/F: apparent volume of distribution; AUCtau,ss: area under the curve over the dosing interval at steady-state; Cmax,ss: maximum concentration at steady-state; Cmin,ss: minimum concentration at steady state; Tmax: time to maximum concentration; t1/2 terminal elimination half-life.
CL/F

(L/day)
0.667 (0.162) 0.742 (0.239) 0.809 (0.370)
Vc/F

(L)
14.1 (2.93) 14.9 (4.45) 16.6 (4.79)
AUCtau,ss

(µg*day/mL)
233 (56.6) 441(137) 408 (138)
Cmax,ss

(µg/mL)
12.0 (3.01) 23.3 (7.94) 34.4 (11.2)
Cmin,ss

(µg/mL)
4.81 (1.40) 8.77 (2.80) 25.4 (9.18)
tmax

(day)
5.17 (1.09) 5.17 (1.12) 4.11 (0.377)
t1/2

(day)
14.9 (2.00) 14.2 (1.89) 15.0 (2.48)
1 Indications and Usage (1 INDICATIONS AND USAGE)

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

12.1 Mechanism of Action

Lanadelumab-flyo is a fully human monoclonal antibody (IgG1/κ-light chain) that binds plasma kallikrein and inhibits its proteolytic activity. Plasma kallikrein is a protease that cleaves high-molecular-weight-kininogen (HMWK) to generate cleaved HMWK (cHMWK) and bradykinin, a potent vasodilator that increases vascular permeability resulting in swelling and pain associated with HAE. In patients with HAE due to C1-inhibitor (C1-INH) deficiency or dysfunction, normal regulation of plasma kallikrein activity is not present, which leads to uncontrolled increases in plasma kallikrein activity and results in angioedema attacks. Lanadelumab-flyo decreases plasma kallikrein activity to control excess bradykinin generation in patients with HAE.

5 Warnings and Precautions (5 WARNINGS AND PRECAUTIONS)

Hypersensitivity reactions have been observed. In case of a severe hypersensitivity reaction, discontinue TAKHZYRO administration and institute appropriate treatment. (5.1)

2 Dosage and Administration (2 DOSAGE AND ADMINISTRATION)

For subcutaneous use only.

Recommended Dosage:

  • Adult and pediatric patients 12 years of age and older: administer 300 mg every 2 weeks by the patient or caregiver. Dosing interval every 4 weeks may be considered in some patients. (2.1)
  • Pediatric patients 6 to less than 12 years of age: administer 150 mg every 2 weeks by a healthcare provider or caregiver. Dosing interval every 4 weeks may be considered in some patients. (2.2)
  • Pediatric patients 2 to less than 6 years of age: administer 150 mg every 4 weeks by a healthcare provider or caregiver. (2.2)
  • See Full Prescribing Information for Administration Instructions. (2.3)
3 Dosage Forms and Strengths (3 DOSAGE FORMS AND STRENGTHS)

TAKHZYRO is a sterile, preservative-free, clear to slightly opalescent, colorless to slightly yellow solution available in the following presentations.

  • Injection: 150 mg/1 mL (150 mg/mL) solution in a single-dose prefilled syringe
  • Injection: 300 mg/2 mL (150 mg/mL) solution in a single-dose prefilled syringe
  • Injection: 300 mg/2 mL (150 mg/mL) solution in a single-dose vial
5.1 Hypersensitivity Reactions

Hypersensitivity reactions have been observed. In case of a severe hypersensitivity reaction, discontinue TAKHZYRO administration and institute appropriate treatment.

6.1 Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

17 Patient Counseling Information (17 PATIENT COUNSELING INFORMATION)

Advise the patient to read the FDA-approved patient labeling (Patient Information and Instructions for Use).

Principal Display Panel 2 Ml Vial Carton (PRINCIPAL DISPLAY PANEL - 2 mL Vial Carton)

Rx Only

NDC 47783-644-01

TAKHZYRO®

(lanadelumab-flyo)

injection

300 mg/2 mL (150 mg/mL)

Single-dose Vial, for Subcutaneous use only.

2 mL

1 single-dose vial.

Takeda

Principal Display Panel 2 Ml Syringe Carton (PRINCIPAL DISPLAY PANEL - 2 mL Syringe Carton)

NDC 47783-646-01

PREFILLED

SYRINGE

TAKHZYRO ®

(lanadelumab-flyo)

injection

300 mg/2 mL (150 mg/mL)

1 single-dose prefilled syringe.

For Subcutaneous use only.

Must be refrigerated, store at 36°F to 46°F (2°C to 8°C)

in the original carton to protect from light. Do not freeze.

Do not shake. Keep out of reach of children.

2 mL

Single-dose syringe

Rx Only

2.3 Preparation and Administration Instructions

TAKHZYRO is administered subcutaneously only.

TAKHZYRO is intended for administration by a healthcare provider, patient or caregiver.

The patient or caregiver should be trained in subcutaneous injection technique by a healthcare professional.

  • Adult and pediatric patients 12 years of age and older: TAKHZYRO may be administered by the patient or caregiver.
  • Pediatric patients 2 to less than 12 years of age: TAKHZYRO should be administered by a healthcare provider or caregiver.

Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Do not use TAKHZYRO if the solution appears discolored or contains visible particles. TAKHZYRO is a clear to slightly opalescent, colorless to slightly yellow solution.

Principal Display Panel 150 Mg/ml Syringe Label (PRINCIPAL DISPLAY PANEL - 150 mg/mL Syringe Label)

NDC 47783-645-01

TAKHZYRO®

(lanadelumab-flyo)

injection

150 mg/mL

For Subcutaneous use only.

Single-dose prefilled syringe

Store refrigerated at 36°F to 46°F (2°C to 8°C).

Takeda Pharmaceuticals U.S.A., Inc. | U.S. License No. 1898

LOT

EXP

Rx Only

0757712

Principal Display Panel 150 Mg/ml Syringe Carton (PRINCIPAL DISPLAY PANEL - 150 mg/mL Syringe Carton)

NDC 47783-645-01

PREFILLED

SYRINGE

TAKHZYRO ®

(lanadelumab-flyo)

injection

150 mg/mL

Attention: For pediatric use (2 to less than 12 years)

For Subcutaneous use only.

1 single-dose prefilled syringe.

Must be refrigerated, store at 36°F to 46°F (2°C to 8°C)

in the original carton to protect from light. Do not freeze.

Do not shake. Keep out of reach of children.

1 mL

Single-dose syringe

Rx Only

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility

Animal studies have not been conducted to evaluate the carcinogenic potential of lanadelumab-flyo. Published literature supports bradykinin, which is elevated in HAE, as a pro-tumorigenic molecule. However, the malignancy risk in humans from an antibody that inhibits plasma kallikrein activity, such as lanadelumab-flyo, which lowers bradykinin levels, is currently unknown.

Male and female fertility were unaffected based upon no observed adverse histopathological findings in the reproductive organs from sexually mature cynomolgus monkeys that received lanadelumab-flyo for 13 weeks at subcutaneous doses up to 50 mg/kg/week (resulting in approximately 22 times the exposure at the MRHD on an AUC basis).

2.1 Recommended Dosage for Adult and Pediatric Patients 12 Years of Age and Older

The recommended starting dosage in adult and pediatric patients 12 years of age and older is 300 mg administered subcutaneously every 2 weeks (q2wks). A dosing interval of 300 mg every 4 weeks (q4wks) is also effective and may be considered if the patient is well-controlled (e.g., attack free) for more than 6 months.


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