Takhzyro 150 mg solution for injection in Pre-filled syringe – patient leaflet, side effects, dosage

1. What TAKHZYRO is and what it is used for

TAKHZYRO contains the active substance lanadelumab.

What TAKHZYRO is used for

TAKHZYRO 150 mg is a medicine used in patients 2 years of age and older weighing less than 40 kg, to prevent angioedema attacks in patients with hereditary angioedema (HAE). What hereditary angioedema (HAE) is

HAE is a condition which runs in families. With this condition the patients blood does not have enough of a protein called ‘C1 inhibitor’, or C1 inhibitor does not work properly. This leads to too much ‘plasma kallikrein’, which in turn produces higher levels of ‘bradykinin’ in the bloodstream. Too much bradykinin leads to symptoms of HAE like swelling and pain on the,

• hands and feet
• face, eyelids, lips or tongue
• voice-box (larynx), which may make breathing difficult
• genitals

How TAKHZYRO works

TAKHZYRO is a type of protein that blocks the activity of plasma kallikrein. This helps to reduce the amount of bradykinin in the bloodstream and prevents symptoms of HAE.

2. What you need to know before giving TAKHZYRO

Do not use TAKHZYRO

If your child or the child you are caring for is allergic to lanadelumab or any of the other ingredients of this medicine (listed in section 6).

Warnings and precautions

• Talk to the child’s doctor, pharmacist or nurse before giving TAKHZYRO.

• If the child has a severe allergic reaction to TAKHZYRO with symptoms such as a

  rash, a tight chest, wheezing, or a fast heartbeat, tell the child’s doctor, pharmacist or nurse immediately.

Keeping a record

It is strongly recommended that every time your child or the child you are caring for has a dose of TAKHZYRO, you write down the name and batch number of the medicine. This is so that you keep a record of the batches used.

Laboratory tests

Tell the child’s doctor if they are using TAKHZYRO before they have laboratory tests to measure how well their blood is clotting. This is because TAKHZYRO in the blood may interfere with some laboratory tests, leading to inaccurate results.

Children

TAKHZYRO is not recommended for use in children under 2 years of age. This is because it has not been studied in this age group.

Other medicines and TAKHZYRO

Tell the child’s doctor or pharmacist if the child is taking, or has recently taken or might take any other medicines.

TAKHZYRO is not known to affect other medicines or be affected by other medicines. Pregnancy and breast-feeding

Patients who are pregnant or breast-feeding or think they may be pregnant should ask their doctor or pharmacist for advice before starting to use TAKHZYRO. There is limited information on the safety of TAKHZYRO use during pregnancy and breast-feeding. As a precautionary measure, it is preferable to avoid the use of lanadelumab during pregnancy and breast-feeding. Your doctor will discuss with you the risks and benefits of taking this medicine. Driving and using machines

This medicine has no or negligible influence on the ability to drive and use machines. TAKHZYRO contains sodium

The medicine contains less than 1 mmol sodium (23 mg) per pre-filled syringe, that is to say essentially ‘sodium-free’.

TAKHZYRO contains polysorbate 80

This medicine contains 0.1 mg of polysorbate 80 in each pre-filled syringe, which is equivalent to 0.1 mg/ml. Polysorbates may cause allergic reactions. Tell your doctor if your child has any known allergies.

3. How to use TAKHZYRO

TAKHZYRO is provided in single-use pre-filled syringes as ready-to-use solution. The treatment for your child or the child you are caring for will be started and managed under the supervision of a doctor experienced in the care of patients with HAE. Always use this medicine exactly as described in this leaflet or as the child’s doctor, pharmacist or nurse has told you. Check with their doctor, pharmacist or nurse if you are not sure or have any further questions on the use of this medicine.

How much TAKHZYRO to use

For children 2 to less than 12 years of age, the recommended dose is based on body weight:

Body weight (kg) Recommended starting dose Dose adjustment

10 to less than 20 kg 150 mg lanadelumab every

4 weeks

A dose increase to 150 mg lanadelumab every 3 weeks may be considered in patients with insufficient control of attacks

20 to less than 40 kg 150 mg lanadelumab every

2 weeks

A dose reduction to 150 mg lanadelumab every 4 weeks may be considered in patients who are stably attack free on treatment

40 kg or more 300 mg lanadelumab every

2 weeks

A dose reduction to 300 mg lanadelumab every 4 weeks may be considered in patients who are stably attack free on treatment

‒ For patients with a body weight of 20 to less than 40 kg who have not had an attack for a long period, the doctor may allow your child or the child you are caring for to continue with the same dose when reaching 12 years of age.

For adults and adolescents 12 to less than 18 years of age with a body weight of less than 40 kg:

‒ The recommended starting dose is 300 mg lanadelumab every 2 weeks. If you have not had an attack for a long period, your doctor may change the dose to 300 mg lanadelumab every 4 weeks, especially if you have a low body weight.

• A starting dose of 150 mg lanadelumab every 2 weeks may also be considered. If you have not had an attack for a long period, your doctor may change the dose to 150 mg lanadelumab every 4 weeks.

How to inject TAKHZYRO

TAKHZYRO should be injected by a healthcare provider or caregiver. Caregiver must carefully read and follow the instructions in section 7, “Instructions for use”.

• TAKHZYRO is for injection under the skin (‘subcutaneous injection’).
• The injection can be given either by a healthcare provider or a caregiver.
• A doctor, pharmacist or nurse should show you how to prepare and inject TAKHZYRO properly before you give it for the first time. Do not inject until you have been trained to inject the medicine.
• Insert the needle into the fatty tissue in the tummy (abdomen), thigh or upper arm.
• Inject the medicine in a different place each time.
• Use each pre-filled syringe of TAKHZYRO only once.

If you use more TAKHZYRO than you should

If the child has received more TAKHZYRO than they should or the dose has been given sooner than according to the doctor’s prescription, inform the doctor. If you forget to use TAKHZYRO

If a dose of TAKHZYRO is missed, inject the dose as soon as possible. The next dose scheduled may need to be adjusted based on the intended dosing frequency to ensure

• at least 10 days between doses for patients on every 2 weeks dosing schedule,
• at least 17 days between doses for patients on every 3 weeks dosing schedule,
• at least 24 days between doses for patients on every 4 weeks dosing schedule. If you are not sure when to inject TAKHZYRO after a missed dose, ask the child’s doctor, pharmacist or nurse.

If you stop giving TAKHZYRO

The decision to stop using TAKHZYRO should be discussed with the child’s doctor. The symptoms may return upon stopping treatment.

If you have any further questions on the use of this medicine, ask the child’s doctor, pharmacist or nurse.

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them. If the child has a severe allergic reaction to TAKHZYRO with symptoms such as a rash, tight chest, wheezing, or a fast heart beat, tell their doctor, pharmacist or nurse immediately. Tell their doctor, pharmacist or nurse if you or the child notice any of the following side effects. Very common (may affect more than 1 in 10 people):

• Reactions where the injection is given – symptoms include pain, skin redness, bruising, discomfort, swelling, bleeding, itching, hardening of skin, tingling, warmth, rash and hives (urticaria).

Common (may affect up to 1 in 10 people):

• Allergic reactions including itching, discomfort and tingling of the tongue
• Dizziness, feeling faint
• Raised skin rash
• Muscle pain
• Blood tests showing liver changes

Reporting of side effects

If your child or the child you are caring for gets any side effects, talk to their doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via Yellow Card Scheme at Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.

By reporting side effects you can help provide more information on the safety of this medicine.

5. How to store TAKHZYRO

Keep this medicine out of the sight and reach of children.

Do not use this medicine after the expiry date which is stated on the label and on the carton after EXP. The expiry date refers to the last day of that month.

turn over

Package leaflet:

Information for the user

TAKHZYRO^® 150 mg solution for injection in pre-filled syringe

lanadelumab

Package leaflet: Information for the user

TAKHZYRO_® 150 mg solution for injection in pre-filled syringe

lanadelumab

Package leaflet: Information for the user

TAKHZYRO^® 150 mg solution for injection in pre-filled syringe

lanadelumab

0766016

0766016

TAKHZYRO 150 mg solution for injection in pre-filled syringe

Store in a refrigerator (2 °C - 8 °C). Do not freeze. Keep the pre-filled syringe in the outer carton in order to protect from light.

Pre-filled syringes may be stored below 25 °C for a single period of 14 days, but not beyond the expiry date.

Do not return TAKHZYRO to refrigerated storage after storage at room temperature. When one pre-filled syringe from a multi-pack is removed from refrigeration, return the remaining pre-filled syringes to the refrigerator until future use when needed. Do not use this medicine if you notice signs of deterioration such as particles in the pre-filled syringe or changed colour of the injection solution.

Do not throw away any medicines via wastewater or household waste. Ask the pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

6. Contents of the pack and other information

What TAKHZYRO contains

• The active substance is lanadelumab. Each pre-filled syringe contains 150 mg of

  lanadelumab in 1 ml solution.

• The other ingredients are disodium phosphate dihydrate (E339), citric acid

monohydrate (E330), histidine, sodium chloride, polysorbate 80 (E433) and water for injections – see section 2 “TAKHZYRO contains sodium” and “TAKHZYRO contains polysorbate 80”.

What TAKHZYRO looks like and contents of the pack

TAKHZYRO is presented as a clear, colourless to slightly yellow solution for injection in a pre-filled syringe.

TAKHZYRO is available as:

• a single pack containing one 1 ml pre-filled syringe in a carton
• a single pack containing two 1 ml pre-filled syringes in a carton
• in multipacks comprising 3 cartons, each carton containing two 1 ml pre-filled syringes. Not all pack sizes may be marketed.

Marketing Authorisation Holder and Manufacturer

Takeda Pharmaceuticals International AG Ireland Branch

Block 2 Miesian Plaza

50-58 Baggot Street Lower

Dublin 2

D02 HW68

Ireland

Tel: +44(0) 3333 000181

E-mail: medinfoemea@takeda.com

This leaflet was last revised in 06/2026

1. 7. Instructions for use

Be sure that you read, understand, and follow the Instructions for Use before injecting TAKHZYRO. Contact your healthcare provider if you have any questions. Intended use

The TAKHZYRO pre-filled syringe is a fixed dose (150 mg/1 ml), ready-to-use, disposable, needle-based injection device intended for subcutaneous administration of the drug product by healthcare providers or caregivers. Self-administration is not recommended in paediatric patients (2 to less than 12 years).

Storing TAKHZYRO

• Store the TAKHZYRO pre-filled syringe in the refrigerator at 2 °C to 8 °C. Do not freeze.
• Pre-filled syringe removed from refrigeration should be stored below 25 °C and used within

14 days. Do not return TAKHZYRO to refrigerated storage after storage at room temperature.

• When one pre-filled syringe from a multi-pack is removed from refrigeration, return the

  remaining pre-filled syringes to the refrigerator until future use when needed.

• Store TAKHZYRO in the original carton to protect the pre-filled syringe from light.

• Throw away (discard) the TAKHZYRO pre-filled syringe if it has been kept out of the

  refrigerator, frozen, or not kept in the original carton protected from light.

• Do not shake TAKHZYRO.

Keep TAKHZYRO and all medicines out of the reach of children. Parts of your TAKHZYRO pre-filled syringe before use (Figure A).

Needle (inside cap) Plunger Rod

Finger Grip

Keep finger grip on at all times

Stopper

Syringe Barrel

with Medicine Needle Cap

Figure A: TAKHZYRO pre-filled syringe Step 1: Prepare for your injection

a. Gather an alcohol swab, cotton ball or gauze pad, adhesive bandage and a 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 packaging.

Alcohol Swab Cotton Ball or Gauze Pad Adhesive

Bandage

Sharps Container

Figure B: Supplies

b. Remove the TAKHZYRO pre-filled 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 pre-filled syringe.

c. Open the carton. Hold the syringe barrel

and remove the TAKHZYRO pre-filled 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 pre-filled 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 pre-filled

  syringe if the expiration date has passed. If the TAKHZYRO pre-filled syringe is expired throw it away (discard) in a sharps container and contact your healthcare provider.

  EXP: MM YYYY

  Figure E: Location of expiration date

f. Inspect the TAKHZYRO pre-filled syringe

for any damage. The medicine inside the syringe barrel should be colourless to slightly yellow (Figure F).

• Do not use the TAKHZYRO pre-filled

  syringe if the syringe is damaged or cracked.

• Do not use the TAKHZYRO pre-filled

  syringe if the medicine is discoloured, cloudy, or has flakes or particles in it.

• You may see air bubbles in the

  TAKHZYRO pre-filled syringe. This is normal and will not affect your dose. If you cannot use the pre-filled syringe, contact your healthcare provider. Figure F: Inspect the pre-filled 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):

o upper arms

o stomach area (abdomen)

o thighs

• Do not inject into an area of your

  child’s body where the skin is irritated, red, bruised, or infected.

• The area you choose for injection

  should be at least 5 cm away from any scars or your child’s belly button (navel). Important:

Rotate injection sites to keep skin healthy. Each new injection should be given at least 3 cm from the last site you used.

Upper arms

Stomach

Thighs

area

(abdomen)

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 pre-filled 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 pre-filled syringe if it has been dropped without the needle cap on.
  • Do not use the TAKHZYRO pre-filled 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 pre-filled syringe in one hand like a pencil (Figure J). Avoid touching the needle or pushing on the plunger rod.

Figure J: Grip pre-filled syringe b. With your other hand, gently pinch about 3 cm 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 3 cm 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 withdraw 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).

Bottom of syringe barrel Stopper

Figure N: Stopper at the bottom of the syringe barrel

Figure M: Push the plunger rod all the way down e. Slowly withdraw 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 pre-filled syringe a. Put your used TAKHZYRO pre-filled 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 pre-filled syringe or any of your injection supplies.

• Do not throw away (dispose of) the

  TAKHZYRO pre-filled syringe in your household trash.

• Do not touch the needle.
• Important: Always keep the sharps disposal container out of the reach of children. Figure O: Dispose in a sharps container