GENOTROPIN 5.3 MG POWDER AND SOLVENT FOR SOLUTION FOR INJECTION - patient leaflet, side effects, dosage

1. What Genotropin is and what it is used for

Genotropin is a recombinant human growth hormone (also called somatropin). It has the same structure as natural human growth hormone which is needed for bones and muscles to grow. It also helps your fat and muscle tissues to develop in the right amounts. It is recombinant meaning it is not made from human or animal tissue.

In children, Genotropin is used to treat the following growth disturbances:

• If you are not growing properly and you do not have enough of your own growth hormone.
• If you have Turner syndrome. Turner syndrome is a chromosomal error in girls that can affect growth – your doctor will have told you if you have this.
• If you have chronic renal (kidney) insufficiency. As kidneys lose their ability to function normally, this can affect growth.
• If you have Prader-Willi syndrome (a chromosomal disorder). Growth hormone will help you grow taller if you are still growing, and will also improve your body composition. Your excessive fat will decrease and your reduced muscle mass will improve.
• If you were small or too light at birth. Growth hormone can help you grow taller if you have not been able to catch up or maintain normal growth by four years of age or later.

In adults, Genotropin is used to treat persons with pronounced growth hormone deficiency. This can start during adult life, or it can continue from childhood.

If you have been treated with Genotropin for growth hormone deficiency during childhood, your growth hormone status will be retested after completion of growth. If severe growth hormone deficiency is confirmed, your doctor will propose continuation of Genotropin treatment.

You should only be given this medicine by a doctor who has experience with growth hormone treatment and who has confirmed your diagnosis.

2 What you need to know before you use Genotropin

Do not use Genotropin and tell your doctor if

• You are allergic (hypersensitive) to somatropin or any of the other ingredients of Genotropin.
• You have an active tumour (cancer). Tumours must be inactive and you must have finished your anti-tumour treatment before you start your treatment with Genotropin.
• You are seriously ill (for example, complications following open heart surgery, abdominal surgery, acute respiratory failure, accidental trauma or similar conditions). If you are about to have, or have had, a major operation, or go into hospital for any reason, tell your doctor and remind the other doctors you are seeing that you use growth hormone.
• Genotropin has been prescribed to stimulate growth but you have already stopped growing (closed epiphyses).

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Take special care with Genotropin and tell your doctor if any of the following statements apply to you

• If you are at risk of developing diabetes, your doctor will need to monitor your blood sugar level during treatment with Genotropin.
• If you have diabetes, you should closely monitor your blood sugar level during treatment with Genotropin and discuss the results with your doctor to determine whether you need to change the dose of your medicines to treat diabetes.
• After starting Genotropin treatment some patients may need to start thyroid hormone replacement.
• If you are receiving treatment with thyroid hormones it may be necessary to adjust your thyroid hormone dose.
• If you are taking growth hormone to stimulate growth and walk with a limp or if you start to limp during your growth hormone treatment due to pain in your hip, you should inform your doctor.
• If you develop raised intracranial pressure (with symptoms such as strong headache, visual disturbances or vomiting) you should inform your doctor about it.
• If your doctor confirms that you have developed inflammation of the muscles near the injection site because of the preservative metacresol, you should use a Genotropin product without metacresol.
• If you are receiving Genotropin for growth hormone deficiency following a previous tumour (cancer), you should be examined regularly for recurrence of the tumour or any other cancer.
• If you experience worsening abdominal pain you should inform your doctor.
• Experience in patients above 80 years of age is limited. Elderly persons may be more sensitive to the action of Genotropin, and therefore may be more prone to develop side effects.

Children with chronic renal (kidney) insufficiency:

• Your doctor should examine your kidney function and your growth rate before starting Genotropin. Medical treatment for your kidney condition should be continued. Genotropin treatment should be stopped at kidney transplantation.

Children with Prader-Willi syndrome:

• Your doctor will give you diet restrictions to follow to control your weight.
• Your doctor will assess you for signs of upper airway obstruction, sleep apnoea (where your breathing is interrupted during sleep), or respiratory infection before you start treatment with Genotropin.
• During treatment, if you show signs of upper airway obstruction (including starting to snore or worsening of snoring), your doctor will need to examine you and may interrupt your treatment with Genotropin.
• During treatment, your doctor will check you for signs of scoliosis, a type of spinal deformity.
• During treatment, if you develop a lung infection, tell your doctor so that he can treat the infection.

Children born small or too light at birth:

• If you were small or too light at birth and are aged between 9 and 12 years, ask your doctor for specific advice relating to puberty and treatment with this product.
• Your doctor will check your blood sugar and insulin levels before the start of treatment and every year during treatment.
• Treatment should be continued until you have stopped growing.

Using other medicines

Tell your doctor or pharmacist if you are using or have recently used any other medicines, including medicines obtained without a prescription.

Warnings and precautions

Talk to your doctor or pharmacist before using Genotropin.

If you have a replacement therapy with glucocorticoids, you should consult your doctor regularly, as you may need adjustment of your glucocorticoid do­se.

You should tell your doctor if you are using:

• medicines to treat diabetes,
• thyroid hormones,
• synthetic adrenal hormones (corticosteroids),
• oestrogen taken orally or other sex hormones,
• ciclosporin (a medicine that weakens the immune system after transplantation),
• medicines to control epilepsy (anticonvulsants).

Your doctor may need to adjust the dose of these medicines or the dose of Genotropin.

Pregnancy and breast-feeding

You should not use Genotropin if you are pregnant, think you may be pregnant or are trying to become pregnant.

Ask your doctor for advice before using this medicine while breast-feeding.

Ask your doctor or pharmacist for advice before taking any medicine.

Genotropin contains sodium

This medicine contains less than 1 mmol sodium (23 mg) per dose, that is to say essentially ‘sodium-free’.

3. how to use genotropin

Recommended dosage

The dose depends on your size, the condition for which you are being treated and how well growth hormone works for you. Everyone is different. Your doctor will advise you about your individualised dose of Genotropin in milligrams (mg) from either your body weight in kilograms (kg) or your body surface area calculated from your height and weight in square metres (m2), as well as your treatment schedule. Do not change the dosage and treatment schedule without consulting your doctor.

Children with growth hormone deficiency:

0.025–0.035 mg/kg body weight per day or 0.7–1.0 mg/nT body surface area per day. Higher doses can be used. When growth hormone deficiency continues into adolescence, Genotropin should be continued until completion of physical development.

Children with Turner syndrome:

0.045–0.050 mg/kg body weight per day or 1.4 mg/nT body surface area per day.

Children with chronic renal (kidney) insufficiency: 0.045–0.050 mg/kg body weight per day or 1.4 mg/nT body surface area per day). Higher doses may be necessary if the rate of growth is too low. Dosage adjustment may be necessary after 6 months of treatment.

Children with Prader-Willi syndrome:

0.035 mg/kg body weight per day or 1.0 mg/nT body surface area per day. The daily dosage should not exceed 2.7 mg. Treatment should not be used in children who have almost stopped growing after puberty.

Children born smaller or lighter than expected and with growth disturbance: 0.035 mg/kg body weight per day or 1.0 mg/nT body surface area per day). It is important to continue treatment until final height is reached. Treatment should be discontinued after the first year if you are not responding or if you have reached your final height and stopped growing.

Adults with growth hormone deficiency:

If you continue Genotropin after treatment during childhood you should start with 0.2–0.5 mg per day. This dosage should be gradually increased or decreased according to blood test results as well as clinical response and side effects.

If your growth hormone deficiency starts during adult life you should start with 0.15–0.3 mg per day. This dosage should be gradually increased according to blood test results as well as clinical response and side effects. The daily maintenance dose seldom exceeds 1.0 mg per day. Women may require higher doses than men. Dosage should be monitored every 6 months. Persons above 60 years should start with a dose of 0.1–0.2 mg per day which should be slowly increased according to individual requirements. The minimum effective dose should be used. The maintenance dose seldom exceeds 0.5 mg per day. Follow the instructions given to you by your doctor.

Injecting Genotropin

Genotropin is intended for subcutaneous use. This means that it is injected through a short injection needle into the fatty tissue just under your skin. Your doctor should have already shown you how to use Genotropin. Always inject Genotropin exactly as your doctor has told you. You should check with your doctor or pharmacist if you are not sure.

The instructions for using the pre-filled pen GoQuick® are provided in the carton with the pre-filled pen.

The instructions for using the Genotropin two-chamber cartridge with the Genotropin Pen or Genotropin Mixer are provided with your devices.

Refer to the instuctions for use before using your medicine.

When using a pre-filled pen, a pen injection device or reconstitution device, the needle must be screwed on before mixing. A new needle must be used for each injection. Needles must not be re-used.

• Preparing the injection:

You can take your Genotropin out of the refrigerator half an hour before your injection. This lets it warm up slightly and can make your injections more comfortable.

The GoQuick pre-filled pen contains the two-chamber cartridge that has both the growth hormone and the dissolving liquid in it. The growth hormone and the dissolving liquid are mixed together by twisting the cartridge holder (see the detailed steps in the Instructions for Use). A separate device is not needed.

Genotropin in a two-chamber cartridge contains both the growth hormone and the dissolving liquid and it is to be used in a Genotropin device. The growth hormone and the dissolving liquid in the two-chamber cartridge can be mixed together using a Genotropin Mixer or by screwing the Genotropin Pen device together.

For both the GoQuick pre-filled pen and the two-chamber cartridge, dissolve the powder by gently tipping it back and forth 5–10 times until the powder is dissolved.

When you are mixing your Genotropin, DO NOT SHAKE the solution. Mix it gently. Shaking the solution could make your growth hormone foam and damage the active substance. Check the solution and do not inject if the solution is cloudy or has particles in it.

• Injecting Genotropin:

Remember to wash your hands and clean your skin first.

Inject your growth hormone at about the same time every day. Bedtime is a good time because it is easy to remember. It is also natural to have a higher level of growth hormone at night.

Most people do their injections into their thigh or their bottom. Do your injection in the place you have been shown by your doctor. Fatty tissue of the skin can shrink at the site of injection. To avoid this, use a slightly different place for your injection each time. This gives your skin and the area under your skin time to recover from one injection before it gets another one in the same place.

Remember to put your Genotropin back in the refrigerator straight after your injection.

If you use more Genotropin than you should

If you inject much more than you should, contact your doctor or pharmacist as soon as possible. Your blood sugar level could fall too low and later rise too high. You might feel shaky, sweaty, sleepy or “not yourself", and you might faint.

If you forget to use Genotropin

Do not use a double dose to make up for a forgotten dose.

It is best to use your growth hormone regularly. If you forget to use a dose, have your next injection at the usual time the next day. Keep a note of any missed injections and tell your doctor at your next check-up.

If you stop using Genotropin

Ask for advice from your doctor before you stop using Genotropin.

If you have any further questions on the use of this product, ask your doctor or pharmacist.

4. possible side effects

Like all medicines, Genotropin can cause side effects, although not everybody gets them.

The very common and common side effects in adults may start within the first months of treatment and may either stop spontaneously or if your dose is reduced.

Very common side effects (may affect more than 1 in 10 people) include: In adults

• Joint pain.
• Water retention (which shows as puffy fingers or swollen ankles).

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

In children:

• Temporary reddening, itchiness or pain at the injection site.
• Joint pain.
• Rash.
• Raised itchy bumps on the skin.
• Numbness/tingling.
• Stiffness in the arms and legs, muscle pain.
• Pain or burning sensation in the hands or underarms (known as Carpal Tunnel Syndrome).

Uncommon side effects (may affect up to 1 in 100 people) include:

In children:

• Water retention (which shows as puffy fingers or swollen ankles, for a short time at the start of treatment).
• Itching.

• – Breast enlargement (gynaecomastia)

In adults:

• – Breast enlargement (gynaecomastia)

Rare side effects (may affect up to 1 in 1,000 people) include:

In children:

• Numbness/tingling.
• Leukaemia (This has been reported in a small number of growth hormone deficiency patients, some of whom have been treated with somatropin. However, there is no evidence that leukaemia incidence is increased in growth hormone recipients without predisposing factors).
• Increased intracranial pressure (which causes symptoms such as strong headache, visual disturbances or vomiting).
• Muscle pain.

Not known: frequency cannot be estimated from the available data

• Type 2 diabetes.
• A decrease in the levels of the hormone Cortisol in your blood.
• Facial swelling.
• Stiffness in the arms and legs.
• Increased intracranial pressure (which causes symptoms such as strong headache, visual disturbances or vomiting).
• Reddening, itchiness or pain at the injection site.
• Rash.
• Itching.
• Raised itchy bumps on the skin.

Formation of antibodies to the injected growth hormone but these do not seem to stop the growth hormone from working.

The skin around the injection area can get uneven or lumpy, but this should not happen if you inject in a different place each time.

A very rare side effect that can occur because of the preservative metacresol is inflammation of the muscles near the injection site. If your doctor confirms that you have developed this, you should use a Genotropin product without metacresol.

There have been rare cases of sudden death in patients with Prader-Willi syndrome. However, no link has been made between these cases and treatment with Genotropin.

Slipped capital femoral epiphysis and Legg-Calve-Perthes disease may be considered by your doctor if discomfort or pain in the hip or knee is experienced whilst being treated with Genotropin.

Other possible side effects related to your treatment with growth hormone may include the following.

You (or your child) may experience a high blood sugar or reduced levels of thyroid hormone. This can be tested by your doctor and if necessary your doctor will prescribe the adequate treatment. Rarely, an inflammation of the pancreas has been reported in patients treated with growth hormone.

If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet, please tell your doctor or pharmacist.

Reporting of side effects

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at: 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 genotropin

Keep out of the sight and reach of children.

Do not use this medicine after the expiry date which is stated on the carton as MM/YYYY. The expiry date refers to the last day of that month.

Before reconstitution:

Store in a refrigerator (2°C – 8°C). Keep the two-chamber cartridge in the outer carton in order to protect from light.

Before opening, the product may be taken out of the refrigerator, without being replaced, for a maximum period of 1 month at a temperature not above 25°C but after this it must be discarded.

After reconstitution:

Store in a refrigerator (2°C – 8°C) for up to 4 weeks. Do not freeze. Keep the GoQuick pre-filled pen in the GoQuick outer carton, or the two-chamber cartridge in the Pen box in order to protect from light.

Do not use this medicine if you notice particles or if the solution is not clear.

Do not freeze or expose Genotropin to frost. If it freezes, do not use it.

Never throw away needles or partly used or empty cartridges with your ordinary rubbish. When you have finished with a needle, you must discard it carefully so that no-one will be able to use it or prick themselves on it. You can get a special “sharps" bin from your hospital or growth clinic.

Do not throw away any medicines via wastewater or household waste. Ask your 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 Genotropin contains

• The active substance is somatropin*.
• One cartridge contains 5.3 mg or 12 mg of somatropin*.
• After reconstitution the concentration of somatropin* is 5.3 mg or 12 mg per ml.
• The other ingredients in the powder are: glycine (E640), mannitol (E421), sodium dihydrogen phosphate anhydrous (E339), and disodium phosphate anhydrous (E339) (see section 2 “Genotropin contains sodium").
• The ingredients in the solvent are: water for injections, mannitol (E421) and metacresol.

• * Produced in Escherichia cori cells by recombinant DNA technology

What Genotropin looks like and contents of the pack

Genotropin is a powder and solvent for solution for injection, in a two-chamber cartridge containing the powder in one section and the solvent in the other

• ( 5.3 mg/ml or 12 mg/ml). The cartridge may be contained in a pre-filled pen. Pack size of 1 or 5 pre-filled pen(s), or 1 or 5 or 20 cartridge(s).

Not all strengths and pack sizes may be marketed.

The powder is white and the solvent is clear.

You can use the cartridges in a specific pen injection device for Genotropin. Genotropin cartridges are colour coded and must be used with the matching colour coded Genotropin Pen to give the correct dose: The Genotropin 5.3 mg cartridge (blue) must be used with the Genotropin Pen 5.3 (blue). The Genotropin 12 mg cartridge (purple) must be used with the Genotropin Pen 12 (purple).

The instructions for use of the device are enclosed in the device package. You should ask your doctor for an injection or reconstitution device if you do not already have one.

Marketing Authorisation Holder

UK:

Pfizer Limited,

Ramsgate Road,

Sandwich,

Kent, CT13 9NJ,

United Kingdom

Manufacturer

Pfizer Manufacturing Belgium NV

Rijksweg 12 2870 Puurs Belgium

This medicinal product is authorised in the Member States of the EEA under the following names:

Genotropin: Austria, Denmark, Finland, Germany, Greece, Ireland, Italy, Netherlands, Portugal, Sweden, United Kingdom

Genotonorm: Belgium, France, Luxembourg

Genotonorm Kabipen: Spain

This leaflet was last approved in: 02/2021

Ref: 36_0

INSTRUCTIONS FOR USE

Important Information

Please read these instructions completely before using GoQuick,

If you have any questions about your dose or your treatment with Genotropin, call your doctor or nurse,

About GoQuick

GoQuick is a prefilled, multidose, disposable injection pen that holds 12 mg of somatropin. The Genotropin in the pen is mixed only once, when you start a new pen, A single pen can be used up to 28 days after mixing, You never have to change cartridges, When the pen is empty, you just start a new pen,

The pen has dose memory, The dose is set once on a new pen, The pen then gives the same dose for each injection. You can use the pen with or without the optional needle guard,

Before You Use GoQuick

• Get training from your doctor or nurse,
• Know your dose, Know the pen parts,
• Make sure you have the pen with the purple injection button.
• Wash your hands,