Ceritinib (Zykadia)
Ceritinib is a type of targeted drug. It is also known as Zykadia.
It is a treatment for a type of lung cancer called non small cell lung cancer that has an enzyme called anaplastic lymphoma kinase (ALK).
You pronounce ceritinib as sir-rit-i-nib.
How does ceritinib work?
Ceritinib is a tyrosine kinase inhibitor. It works by blocking an enzyme called anaplastic lymphoma kinase (ALK). Ceritinib only works in cancer cells that have an overactive version of ALK. About 5 in 100 people (5%) with NSCLC have this. It is called ALK positive disease.
Your doctor might recommend you have ceritinib if you have advanced non small cell lung cancer that is ALK positive and you have already had treatment with a drug called crizotinib.
You might also have ceritinib if you have advanced NSCLC and haven't had any other treatments before.
You might also have certinib if you have not had any other treatments before.
How do you have ceritinib?
Ceritinib is a capsule or tablet. You swallow your capsules or tablets whole with a glass of water.
You take it once a day, at the same time every day. Ceritinib should be taken with food (light to full meal).
Do not take this drug with grapefruit or grapefruit juice. It may make the amount of ceritinib in your blood increase to a harmful level.
You should take the right dose, not more or less.
Talk to your healthcare team before you stop taking or miss a dose of a cancer drug.
How often do you have ceritinib?
You usually carry on taking ceritinib for as long as it is still working and your side effects are not too severe.
Tests
You have blood tests before and during your treatment. They check your levels of blood cells and other substances in the blood. They also check how well your liver and kidneys are working.
What are the side effects of ceritinib?
Side effects can vary from person to person. They also depend on what other treatment you are having.
This treatment affects the immune system. This may cause inflammation in different parts of the body which can cause serious side effects. They could happen during treatment, or some months after treatment has finished. In some people, these side effects could be life threatening.
When to contact your team
Your doctor or nurse will go through the possible side effects. They will monitor you closely during treatment and check how you are at your appointments. Contact your advice line as soon as possible if:
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you have severe side effects
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your side effects aren’t getting any better
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your side effects are getting worse
We haven't listed all the side effects here. Remember it is very unlikely that you will have all of these side effects, but you might have some of them at the same time.
Common side effects
These side effects happen in more than 10 in 100 people (more than 10%). You might have one or more of them. They include:
Diarrhoea
Contact your advice line if you have diarrhoea. For example, in one day you have 2 or more loose bowel movements than usual. If you have a 
, you might have more output than normal. Your doctor may give you anti diarrhoea medicine to take home with you after treatment.
Try to eat small meals and snacks regularly. It’s best to try to have a healthy balanced diet if you can. You don’t necessarily need to stop eating foods that contain fibre. But if your diet is normally very high in fibre, it might help to cut back on high fibre foods such as beans, nuts, seeds, dried fruit, bran and raw vegetables.
Drink plenty to try and replace the fluid lost. Aim for 8 to 10 glasses per day.
Feeling or being sick
Feeling or being sick is usually well controlled with anti sickness medicines. It might help to avoid fatty or fried foods, eat small meals and snacks and take regular sips of water. Relaxation techniques might also help.
It is important to take anti sickness medicines as prescribed even if you don’t feel sick. It is easier to prevent sickness rather than treat it once it has started.
Constipation
is easier to sort out if you treat it early. Drink plenty and eat as much fresh fruit and vegetables as you can. Try to take gentle exercise, such as walking. Tell your healthcare team if you think you are constipated. They can give you a laxative if needed.
Loss of appetite
You might lose your appetite for various reasons while having cancer treatment. Sickness, taste changes or tiredness can put you off food and drinks.
Liver changes
You might have liver changes that are usually mild and unlikely to cause symptoms. They usually go back to normal when treatment finishes. You have regular blood tests to check for any changes in the way your liver is working.
Tummy (abdominal) pain
Tell your treatment team if you have this. They can check the cause and give you medicine to help.
Breathlessness and looking pale
You might be breathless and look pale due to a drop in red blood cells. This is called anaemia.
Indigestion
Contact your doctor or pharmacist if you have indigestion or heartburn. They can prescribe medicines to help.
Skin changes
Skin problems include a skin rash, dry skin and itching. This usually goes back to normal when your treatment finishes. Your healthcare team can tell you what products you can use on your skin to help.
Tiredness and weakness (fatigue)
You might feel very tired and as though you lack energy.
Various things can help you to reduce tiredness and cope with it, for example exercise. Some research has shown that taking gentle exercise can give you more energy. It is important to balance exercise with resting.
Kidney changes
You might have some changes in the way your kidneys work. You have regular blood tests to check how well they are working.
Occasional side effects
These side effects happen in between 1 and 10 out of every 100 people (between 1 and 10 %). You might have one or more of them. They include:
- changes in blood sugar levels
- high levels of enzymes (lipase and amylase) in the blood
- eyesight changes such as blurred vision or vision loss
- low phosphate levels in the blood
- kidney changes
- cough and breathlessness due to changes in the lung tissue
- slow heart rate
- inflammation of the fluid filled sac that surrounds your heart which can cause chest pain
Rare side effects
This side effect happens in fewer than 1 in 100 people (fewer than 1%):
- inflammation of the pancreas (pancreatitis)
Coping with side effects
We have more information about side effects and tips on how to cope with them.
What else do I need to know?
Other medicines, foods and drink
Cancer drugs can interact with some other medicines and herbal products. Tell your doctor or pharmacist about any medicines you are taking. This includes vitamins, herbal supplements and over the counter remedies.
Grapefruit and grapefruit juice
You should not eat grapefruit or drink grapefruit juice when you are taking this drug because it can react with the drug.
Pregnancy and contraception
This drug may harm a baby developing in the womb. It is important not to become pregnant or get someone pregnant while you are having treatment with this drug and for at least 3 months afterwards.
Talk to your doctor or nurse about effective contraception before starting treatment. Let them know straight away if you or your partner become pregnant while having treatment.
If you take ceritinib whilst using oral contraceptives, the oral contraceptives may not work.
Fertility
It is not known whether this treatment affects in people. Talk to your doctor before starting treatment if you think you may want to have a baby in the future.
Breastfeeding
Don’t breastfeed during this treatment because the drug may come through into your breast milk.
Treatment for other conditions
If you are having tests or treatment for anything else, always mention your cancer treatment. For example, if you are visiting your dentist.
Immunisations
Don’t have immunisations with live vaccines while you’re having treatment and for up to 12 months afterwards. The length of time depends on the treatment you are having. Ask your doctor or pharmacist how long you should avoid live vaccinations.
In the UK, live vaccines include rubella, mumps, measles, BCG, yellow fever and one of the shingles vaccines called Zostavax.
You can have:
- other vaccines, but they might not give you as much protection as usual
- the flu vaccine (as an injection)
- the coronavirus (COVID-19) vaccine - talk to your doctor or pharmacist about the best time to have it in relation to your cancer treatment
Members of your household who are aged 5 years or over are also able to have the COVID-19 vaccine. This is to help lower your risk of getting COVID-19 while having cancer treatment and until your recovers from treatment.
Contact with others who have had immunisations - You can be in contact with other people who have had live vaccines as injections. Avoid close contact with people who have recently had live vaccines taken by mouth (oral vaccines) such as the oral typhoid vaccine. Sometimes people who have had the live shingles vaccine can get a shingles type rash. If this happens they should keep the area covered.
If your immune system is severely weakened, you should avoid contact with children who have had the flu vaccine as a nasal spray as this is a live vaccine. This is for 2 weeks following their vaccination.
Babies have the live rotavirus vaccine. The virus is in the baby’s poo for about 2 weeks and could make you ill if your immunity is low. Get someone else to change their nappies during this time if you can. If this isn't possible, wash your hands well after changing their nappy.
More information about this treatment
For further information about this treatment and possible side effects go to the electronic Medicines Compendium (eMC) website. You can find the patient information leaflet on this website.
You can report any side effect you have to the Medicines Health and Regulatory Authority (MHRA) as part of their Yellow Card Scheme.
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