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Active substance(s): CLADRIBINE

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GB - AW_133527

GB - AW_133527

Leustat ®

Leustat ®




© J-C 2017


Leustat is a registered trademark

Read all of this leaflet carefully before you are given this

• Keep this leaflet. You may need to read it again. It may be helpful to ask
your partner or carer to read it as well
• If you have any further questions, ask your doctor or nurse
• 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 nurse

In this leaflet
1 What Leustat is and what it is used for
2 Before you are given Leustat
3 How Leustat is used
4 Possible side effects
5 How Leustat is stored
6 Further information

1 What Leustat is and what it is used for
Leustat contains a medicine called cladribine. This belongs to a group of
medicines used to treat cancer (called ‘cytotoxic drugs’).

Leustat works by killing abnormal white blood cells.

Leustat is for:
• An illness caused by the abnormal growth of white blood cells. This is
called ‘hairy cell leukaemia’
• An illness caused by the abnormal growth of a type of white blood cell
called ‘lymphocytes’. This illness is called ‘B-cell chronic lymphocytic
leukaemia'. In this case, Leustat is used when the first treatment (called
an ‘alkylating agent’) has not worked or has stopped working

2 Before you are given Leustat
Do not have Leustat if:

• You are allergic to anything in Leustat (listed in section 6).

Take special care

Talk to your doctor before you are given Leustat if:
• You are suffering from any infection or fever
• You have ever had kidney or liver problems
• You have ever had bone marrow or blood problems
You may still be able to have Leustat, but you should discuss this with your
doctor first.

Warnings and precautions

At any time during or after your treatment, tell your doctor or nurse
immediately if you:
• experience blurred, loss of or double vision, difficulty speaking, weakness
in an arm or a leg, a change in the way you walk or problems with your
balance, persistent numbness, decreased sensation or loss of sensation,
memory loss or confusion. These may all be symptoms of a serious and
potentially fatal brain condition known as progressive multifocal
leukoencephalopathy (PML).
If you had these symptoms prior to treatment with cladribine, tell your
doctor about any change in these symptoms.

Taking other medicines

Please tell your doctor or pharmacist if you are taking or have recently
taken any other medicines. This includes medicines that you buy without
a prescription or herbal medicines.
In particular tell your doctor if you are already taking or are to be given:
• Medicines which reduce blood cell formation in the bone marrow
(known as myelosuppression)
• A live vaccine while being treated with Leustat
• Other medicines for the treatment of leukaemia, such as fludarabine or
pentostatin (also known as deoxycoformycin)
• Medicines to treat viral infections including HIV (such as didanosine,
tenofovir, adefovir)

Blood tests

• Your doctor will arrange regular blood tests before and during your
treatment. The blood tests check that your liver and kidneys are working
properly. They also check how the Leustat treatment is working
• If you visit another hospital or your family doctor for a blood test, tell them
that you have been given Leustat. This is because Leustat may affect the
result of blood tests

Pregnancy and breast-feeding

Do not use this medicine if you are pregnant, think you may be pregnant or
might become pregnant. This is because it may affect the baby.
You must use effective contraception while you are being treated with
Leustat and for 6 months after your treatment ends. Ask your doctor or
pharmacist for advice.
You must not breast-feed while you are being treated with Leustat, or for
6 months after your treatment ends.
Ask your doctor or pharmacist for advice before taking any medicine if you
are pregnant or breast-feeding.

Family planning

Men should not father a child until at least 6 months after the last dose of

Driving or using machines

Your illness and its treatment may affect you being able to drive. Do not
drive or use any tools or machines without discussing this with your doctor

Important information about an ingredient of Leustat

If you need to control your salt intake (controlled sodium diet) be aware
• Each Leustat vial contains 1.55 mmol sodium (35.4 mg)
• The contents of the vial are diluted in a salt solution (called ‘saline’)
before being given to you. This salt solution also contains sodium

3 How Leustat is used
Leustat is put in a drip and given slowly into a vein. It is normally diluted in
a salt solution (called ‘saline’). A doctor experienced in using this type of
medicine will give it to you. Check with your doctor or nurse if you are not
sure about anything.

Adults and the elderly

The dose of Leustat is based on your body weight in kilograms.


Leustat has not been fully tested for use in children.

If you have too much Leustat

Tell your doctor or nurse straight away if you think you have been given too
much Leustat.

For abnormal growth of hairy white blood cells:
• The usual dose is 0.09 mg per kilogram each day
• The dose is given over 24 hours every day for 7 days, without a break
For abnormal growth of lymphocyte white blood cells:
• The usual dose is 0.12 mg per kilogram each day
• The dose is given every day for 5 days
• Each dose is normally given over 2 hours
• The 5 day course is repeated every 28 days
• You can receive a maximum of 6 of these courses

4 Possible side effects
Like all medicines, Leustat can cause side effects, although not everybody
gets them. Some side effects may be the same as symptoms of the illness.
Your doctor may decide to delay or stop using Leustat if you get side
Tell your doctor or nurse straight away if you notice any of the
following serious side effects. You may need urgent medical
• The sudden appearance of rash, itching, hives (also known as nettle rash
or urticaria), swollen face or lips, or shortness of breath. These may be
signs of an allergic reaction.
• Fever and chills (affects more than 1 in 10 people). These may be the first
signs that you have an infection. The infection may happen because of
a fall in the number of white blood cells (neutropenia). Some infections
are more common than others. Infection can happen anywhere in your
body including:
- Your chest (cough, shortness of breath or difficulty breathing, noisy
breathing, pneumonia)
- Your urinary system (pain or discomfort on passing water)
- Your skin (bacterial, fungal or viral infections that may leave the skin
tender, hot or red)
- Your mouth (a fungal infection called thrush)
- Your gut (infection or inflammation of the intestines)
- Your blood (septicaemia)
• Easier bruising and bleeding under the skin (thrombocytopenia) or red or
purple spots under the skin (petechiae), or more bleeding than usual after
injury. This can be caused by a fall in the number of small blood cells
called platelets (affects more than 1 in 10 people) or problems with blood
• Feeling weak or breathless. This can be caused by a fall in the number of
red blood cells (anaemia). The anaemia may be severe (affects more
than 1 in 10 people)

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• Build-up of fluid under the skin called oedema (affects more than 1 in
10 people)
• Swelling and clotting in a vein called phlebitis (affects less than 1 in
10 people)
• Stevens-Johnson syndrome (a serious illness with blistering of the skin,
mouth, eyes and genitals) (affects less than 1 in 100 people)
• Tumour lysis syndrome (a serious condition resulting from breakdown of
tumour cells. This can lead to heart and kidney problems, weakness and
fits) (affects less than 1 in 100 people)
• Leustat may increase the risk of developing another cancer in the future
Tell your doctor or nurse at your next appointment if you notice any
of the following side effects:
Very common (affects more than 1 in 10 people)
• Feeling dizzy or tired
• Headache
• Rash, sweating
• Feeling sick (nausea), being sick (vomiting)
• Redness, swelling or pain where the injection was given
Common (affects less than 1 in 10 people)
• Faster heart beat
• Reduced blood flow to the heart muscle
• Stomach pain or wind (flatulence)
• Having less appetite
• Constipation or diarrhoea
• Joint pain, muscle pains or weakness
• Generalised pain
• Anxiety or difficulty sleeping (insomnia)
• Itching (pruritus)
• Conjunctivitis
• Generally feeling unwell

© J-C 2017

4 Possible side effects (continued)
Uncommon (affects less than 1 in 100 people)
• A problem that affects the body being able to produce white blood cells,
red blood cells and small blood cells (platelets). The effects may need
further treatment
• An increase in a particular type of white blood cell (eosinophil)
• A decrease in the ability of your kidneys being able to get rid of waste
products from the blood, and a decrease in urine production
• Serious nerve damage. The effects include partial or complete paralysis
and may be permanent
• An increase in liver enzymes (shown in blood tests)
• Confusion, reduced consciousness, co-ordination problems (ataxia)
• A red, irritated and painful eye
• Shingles

Rare (affects less than 1 in 1,000 people)
• Heart failure
• Irregular heart beat

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

5 How Leustat is stored
The vials are stored unopened in a hospital refrigerator where children
can’t see or reach them. Vials should be protected from light.
Do not use Leustat after the expiry date stated on the label. The expiry date
refers to the last day of that month.

Do not use Leustat if:
• The seal is broken or a dose has already been taken from the vial
• The liquid is coloured or you can see particles floating in it
• It has been diluted and refrigerated for more than 8 hours
• It has been diluted with a solution of 5% dextrose

6 Further information
The active substance in Leustat is cladribine (1 mg/ml).
The other ingredients are sodium chloride, phosphoric acid, dibasic
sodium phosphate heptahydrate and water for injection.

What Leustat looks like and contents of the pack

Leustat is supplied in a clear glass vial containing 10 ml of a clear,
colourless liquid.
The product licence is held by:
JANSSEN-CILAG LTD, 50-100 Holmers Farm Way, High Wycombe,
Bucks HP12 4EG, UK
Leustat is made by:
Janssen Pharmaceutica NV, Turnhoutseweg 30, B-2340 Beerse, Belgium

AW_133527.pdf - Page 2 of 3 - November 8, 2017 - 14:31:38

For information in large print, tape, CD or Braille,
telephone 0800 7318450.
This leaflet was last revised in November 2017

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.