Ponatinib
Ponatinib is a cancer drug. It is used to treat some types of leukaemia.
What is ponatinib?
Ponatinib is a type of targeted therapy drug called a cancer growth inhibitor.
Ponatinib is used to treat some types of leukaemia. It may sometimes be used to treat other cancers.
It is best to read this information with our general information about targeted therapy drugs and the type of cancer you have.
Your cancer team will talk to you about this treatment and its possible side effects before you agree (consent) to have treatment.
More information about this treatment
This information is correct at time of publishing. But sometimes the types of cancer this treatment is used for, or treatment side effects, may change between revision dates.
You can talk to your cancer team if you want more detailed information about this treatment. Or visit the electronic Medicines Compendium (eMC) website, which has patient information leaflets (PIL) for individual drugs.
When ponatinib is used
Ponatinib is used to treat chronic myeloid leukaemia (CML). It is also used to treat acute lymphoblastic leukaemia (ALL) that is Philadelphia chromosome positive. Ponatinib is used if the leukaemia cells have a gene change (mutation) called T315I. It may also be used if the leukaemia cells have no T315I gene change, but other targeted therapy drugs are no longer helping.
Ponatinib is also sometimes used to treat other types of cancer as part of a clinical trial.
How ponatinib is given
You will be given ponatinib as tablets to take at home.
During a course of treatment, you will meet someone from your cancer team, such as a:
- cancer doctor
- specialist nurse
- specialist pharmacist.
This is who we mean when we mention doctor, nurse or pharmacist in this information.
During your course of treatment, you will have regular blood tests. This is to check that it is safe for you to have treatment.
Your course of treatment
You usually have a course of several cycles of treatment over a few months. Your cancer team will discuss your treatment plan with you.
They will give you the tablets to take home. They may give you tablets of different strengths. Always take them exactly as they tell you to. This is important to make sure they work as well as possible for you.
Your cancer team may also give you anti-sickness drugs and other medicines to take home. Take all your capsules or tablets exactly as they tell you to.
Taking ponatinib tablets
You take ponatinib tablets once a day. Make sure you:
- take them at the same time each day with or without food
- swallow them whole with a glass of water
- do not chew, dissolve or crush them
- take them at the same time every day.
If you forget to take the tablets, do not take a double dose. Contact the hospital on the 24-hour number you have been given for advice.
Other things to remember about your tablets:
- Do not eat grapefruit or drink grapefruit juice while you are taking ponatinib.
- Keep them in the original package and at room temperature, away from moisture, heat and direct sunlight.
- Keep them safe, where children cannot see or reach them.
- If you are sick (vomit) just after taking them, do not take another dose. Take your next dose at the usual time.
- Do not throw away unused tablets. Return them to your cancer team at the hospital.
About side effects
We explain the most common side effects of this treatment here. We also include some that are less common.
You may get some of the side effects we mention, but you are unlikely to get all of them. And you may have some side effects, including rarer ones, that we have not listed here.
Other cancer treatments may cause different side effects. If you are also having other cancer treatment, you may have other side effects.
Always tell your doctor, nurse or pharmacist about any side effects you have. They can give you:
- drugs to help control some side effects
- advice about managing side effects.
It is important to take any drugs exactly as explained. This means they will be more likely to work for you.
Serious and life-threatening side effects
Some cancer treatments can cause serious side effects. Sometimes, these may be life-threatening. Your doctor, nurse or pharmacist can explain the risk of these side effects to you.
Contact the hospital
Your doctor, nurse or pharmacist will give you 24-hour contact numbers for the hospital. If you feel unwell or need advice, you can call at any time of the day or night. Save these numbers in your phone or keep them somewhere safe.
Very common side effects
Risk of infection
This treatment can reduce the number of white blood cells in your blood. These cells fight infection. If your white blood cell count is low, you may be more likely to get an infection. A low white blood cell count is called neutropenia.
An infection can be very serious when the number of white blood cells is low. It is important to get any infection treated as soon as possible. If you have any of the following symptoms, contact the hospital straight away on the 24-hour number:
- a temperature above 37.5°C
- a temperature below 36°C
- you feel unwell, even with a normal temperature
- you have symptoms of an infection.
Symptoms of an infection include:
- feeling shivery and shaking
- a sore throat
- a cough
- breathlessness
- diarrhoea
- needing to pass urine (pee) often, or discomfort when you pass urine.
It is important to follow any specific advice your cancer treatment team gives you.
You will have regular blood tests during treatment. If your white blood cell count is low, your doctor may stop your treatment for a short time, until your cell count increases. Sometimes they will reduce the dose of your treatment.
Anaemia (low number of red blood cells)
This treatment can reduce the number of red blood cells in your blood. Red blood cells carry oxygen around the body. If the number of red blood cells is low, this is called anaemia. You may feel:
- very low in energy
- breathless
- dizzy and light-headed.
If you have these symptoms, contact the hospital straight away on the 24-hour number. You may need treatment for anaemia. If you are very anaemic, you may need a drip to give you extra red blood cells. This is called a blood transfusion.
Bruising and bleeding
This treatment can reduce the number of platelets in your blood. Platelets are cells that help the blood to clot.
If the number of platelets is low, you may bruise or bleed easily. You may have:
- nosebleeds
- bleeding gums
- heavy periods
- blood in your urine (pee) or stools (poo)
- tiny red, brown or purple spots that may look like a rash – these spots can be harder to see if you have black or brown skin.
If you have any unexplained bruising or bleeding, contact the hospital straight away on the 24-hour number. You may need a drip to give you extra platelets. This is called a platelet transfusion.
Feeling tired
Feeling tired is a common side effect of this treatment. It is often worse towards the end of treatment and for some weeks after it ends. Try to pace yourself and plan your day so you have time to rest. Gentle exercise, like short walks, can help you feel less tired.
If you feel sleepy, do not drive or use machinery.
Difficulty sleeping (insomnia)
Feeling sick
If you feel sick this is usually mild. Tell your nurse or doctor if this happens. They can give you anti-sickness drugs to help prevent sickness.
If you feel sick, take small sips of fluid often and eat small amounts regularly. It is important to drink enough fluids. If you continue to feel sick, or if you are sick (vomit) 1 to 2 times in 24 hours, contact the hospital on the 24-hour number as soon as possible. They will give you advice. They may change your anti-sickness treatment. Let them know if you still feel sick.
Diarrhoea
This treatment may cause diarrhoea. Diarrhoea means passing more stools (poo) than is normal for you, or having watery or loose stools. You may also have stomach cramps. If you have a stoma, it may be more active than usual.
If you are passing loose stools 3 or more times a day and this is not normal for you, contact the hospital as soon as possible on the 24-hour number. Follow the advice they give you about:
- taking anti-diarrhoea medicines
- drinking enough fluids to keep you hydrated and to replace lost salts and minerals
- any changes to your diet that might help.
They might also ask you for a specimen of your stool to check for infection.
Constipation
This treatment can cause constipation. Constipation means that you are not able to pass stools (poo) as often as you normally do. It can become difficult or painful. Here are some tips that may help:
- Drink at least 2 litres (3½ pints) of fluids each day.
- Eat high-fibre foods, such as fruit, vegetables and wholemeal bread.
- Do regular gentle exercise, like going for short walks.
If you have constipation, contact the hospital on the 24-hour number for advice. They can give you drugs called laxatives to help.
If you have not been able to pass stools for over 2 days and are being sick, contact the 24-hour number straight away.
Indigestion or tummy pain
This treatment can cause pain in the tummy (abdomen). Sometimes this is caused by indigestion. Your doctor, nurse or pharmacist can give you advice and drugs to help.
Sometimes tummy pain is a sign of a more serious problem. Contact the hospital straight away on the 24-hour number if you have:
- sharp pain in your upper tummy (abdomen)
- any signs of bleeding from your back passage (rectum)
- black stools (poo)
- blood in your vomit
- vomit that looks dark and grainy like coffee grounds.
Skin changes
This treatment can affect your skin. It might feel dry. You may develop a rash, which may be itchy. Always tell your doctor, nurse or pharmacist about any skin changes. They can give you advice or prescribe creams or medicines to help
If your skin feels dry, try using soap-free cleansers and unperfumed moisturising cream every day.
Rarely, this treatment can cause a serious skin reaction that needs to be treated immediately in hospital.
Do not take any more of this treatment and contact the hospital straight away on the 24-hour number if you have any of these symptoms:
- a skin rash that is spreading
- blistering or peeling skin
- flu-like symptoms, such as a high temperature and joint pain
- sores on your lips or in your mouth.
Muscle or joint pain
You may get pain in your muscles or joints for a few days after treatment. If this happens, tell your doctor, nurse or pharmacist. They can give you painkillers and advice. They can also tell you if any of the painkillers you usually take are suitable.
Tell them if the pain does not get better. Having warm baths and resting regularly may help.
High blood pressure (hypertension)
This treatment can cause your blood pressure to go up. You will have regular blood pressure checks during your treatment. Tell your doctor, nurse or pharmacist if you:
- have headaches
- have nosebleeds
- feel dizzy.
If you have high blood pressure, your cancer team can give you tablets to control it. If you already take tablets for high blood pressure, tell your doctor before you start treatment.
Narrowing of blood vessels
Ponatinib can make your blood vessels narrower. This may increase your risk of having a stroke. It is important to tell your doctor if you have had any strokes or heart problems in the past. Your doctor may talk to you about the benefits and risks of ponatinib. They may also talk to you about lifestyle changes. For example, they may advise you to follow a healthy diet or to stop smoking.These can lower the risk of having a stroke.
You can use the word “FAST” to remember the main symptoms of stroke.
Face:
- Your face droops on one side.
- You are unable to smile.
- Your mouth or eye may have drooped.
Arms:
- You are unable to lift both arms and keep them up because one side of your body is weak or numb.
Speech:
- You have difficulty speaking.
- Your speech is slurred or garbled.
- You are confused.
Time:
- If you notice any of these signs and symptoms, it’s time to dial 999 immediately.
Effects on the liver and kidneys
This treatment can affect how your kidneys or liver work. This is usually mild and goes back to normal after treatment ends. You will have blood tests to check how well your kidneys and liver are working. Contact the hospital on the 24-hour number if you:
- have blood in your urine (pee)
- are passing less urine or peeing less often than usual.
Drinking fluids also helps protect your kidneys. The advice is usually to try to drink at least 2 litres (3½ pints) of fluid each day. But follow any advice from your doctor, nurse or pharmacist about how much is right for you.
Feeling dizzy
Ponatinib may cause dizziness. If this happens, tell your doctor or nurse. If you feel dizzy, you should not drive or operate machinery.
Fluid build-up
This treatment can cause a build-up of fluid in the body. This will slowly get better after treatment ends. Contact the hospital on the 24-hour number if you:
- are gaining weight
- have swelling in your face, legs or ankles.
They can give you advice and treatment to help.
Loss of appetite
This treatment can affect your appetite. Don’t worry if you do not eat much for 1 or 2 days. But if your appetite does not come back after a few days, or if you are losing weight, tell your doctor, nurse or pharmacist. They can give you advice. They may give you food or drink supplements. Or they may suggest changes to your diet or eating habits to help.
Other side effects
Sore mouth and throat
This treatment may cause a sore mouth and throat. You may also get mouth ulcers. This can make you more likely to get a mouth or throat infection. Use a soft toothbrush to clean your teeth or dentures in the morning, at night and after meals.
Contact the hospital straight away on the 24-hour number, if:
- a sore mouth or throat affects how much you can drink or eat
- your mouth, tongue, throat or lips have any blisters, ulcers or white patches.
They can give you advice, and mouthwash or medicines to help with the pain or to treat any infection. Follow their advice and make sure you:
- drink plenty of fluids
- avoid alcohol and tobacco
- avoid food or drinks that irritate your mouth and throat.
Effects on the eyes
Your eyes may become watery and feel sore. Your doctor, nurse or pharmacist can give you advice and eye drops to help with this.
Contact the hospital on the 24-hour number if:
- your eyes get red and inflamed (conjunctivitis)
- you have pain in your eyes
- you notice any change in your vision.
Effects on the heart
This treatment can affect how the heart works. You may have tests to check how well your heart is working. These may be done before, during and after treatment.
If the treatment is causing heart problems, your doctor may change the type of treatment you are having.
Contact the hospital straight away on the 24-hour number if you have any of these symptoms during or after treatment:
- breathlessness
- dizziness
- changes to your heartbeat
- swollen feet and ankles.
Other conditions can cause these symptoms, but it is important to get them checked by a doctor.
Always call 999 if you have:
- chest pain, pressure, heaviness, tightness or squeezing across the chest
- difficulty breathing.
Dehydration
Ponatinib can make you dehydrated. Try to drink around 2 litres (3½ pints) of fluids every day while having treatment.
Tell your doctor or nurse if you have signs of dehydration, such as:
- feeling thirsty
- having dark or strong-smelling urine (pee)
- dizziness
- dry mouth and eyes
- needing to pass urine less than 4 times a day.
Blood clot risk
Cancer and some cancer treatments can increase the risk of a blood clot. Contact the hospital straight away on the 24-hour number if you have any of these symptoms during or after treatment:
- throbbing pain or swelling in a leg or arm
- reddening of the skin in the area – if you have black or brown skin, this can be harder to notice, but the skin might become darker
- suddenly feeling breathless or coughing.
Always call 999 if you have:
- chest pain
- difficulty breathing.
A blood clot is serious, but it can be treated with drugs called anticoagulants. These thin the blood. Your doctor, nurse or pharmacist can give you more information about preventing and treating blood clots.
Raised blood sugar levels
This treatment may raise your blood sugar levels and increase the risk of diabetes.
You will have regular blood tests to check this.
Signs of raised blood sugar include:
- feeling thirsty
- needing to pass urine (pee) more often than usual
- feeling more tired than usual.
Contact the hospital on the 24-hour number if you have these symptoms during treatment or after it ends.
If you already have diabetes, your blood sugar levels may be higher than usual. You may need advice and support from your GP or diabetes team about managing this.
Thyroid changes
Ponatinib can affect your thyroid gland. You will have regular blood tests to check this.
Hair loss
You might notice that your hair slowly gets thinner. But you are very unlikely to lose all the hair from your head. Your hair can also become more brittle. Your nurse can give you information about coping with hair loss. Your hair will usually go back to normal after treatment ends.
Numb or tingling hands or feet (peripheral neuropathy)
This treatment may affect the nerves in your fingers and toes. This can cause numbness, tingling or pain in your hands or feet. This is called peripheral neuropathy. You might find it hard to do fiddly tasks such as fastening buttons or tying shoelaces.
If you have these symptoms, always tell your doctor, nurse or pharmacist. They sometimes need to change the drug or the dose of the drug. The symptoms usually improve slowly after treatment ends. But for some people they continue and are a long-term side effect of treatment.
Tumour lysis syndrome (TLS)
Some people are at risk of developing a condition called tumour lysis syndrome (TLS) during this treatment. When treatment makes large numbers of cancer cells die and break down quickly, they release lots of waste products into the blood. This can affect how well the kidneys work. It may also cause problems with the heart rhythm.
TLS can be prevented. You will have regular blood tests to check for TLS. If you are at risk of TLS, you may have:
- extra fluids through a drip
- medicines such as rasburicase through a drip, or allopurinol as tablets.
Drinking at least 2 litres (3½ pints) of fluid a day will also help.
Effects on the brain
Rarely, this treatment causes a brain condition that can be serious. You can make a full recovery from this. But it must be diagnosed and treated quickly.
This condition can cause:
- a headache that does not get better
- drowsiness or confusion
- changes in eyesight
- fits (seizures).
If you have any of these symptoms, it is important to either:
- contact the hospital straight away on the 24-hour number
- go to the hospital straight away.
You should not drive yourself to hospital.
Other important information
Lactose
This treatment may contain lactose. If you have a lactose allergy or intolerance, ask your doctor, nurse or pharmacist for more information.
Hepatitis B reactivation
If you had hepatitis B (a liver infection) in the past, ponatinib can make it active again. Your doctor or nurse will talk to you about this and may test you for hepatitis B before, during, and after treatment.
Other medicines
Some medicines can affect how this treatment works or be harmful while you are having it. Always tell your cancer doctor, nurse or pharmacist about any drugs you are taking or planning to take, such as:
- medicines you have been prescribed
- medicines you buy in a shop, pharmacy or online
- vitamins or supplements
- herbal drugs and complementary or homeopathic therapies
- recreational drugs – for example, cannabis.
Vaccinations
Doctors usually recommend that people with cancer have vaccinations for flu and for coronavirus (covid). These help reduce your risk of serious illness from these infections. Most people can have these vaccines, including people with weak immune systems.
If your immune system is weak, you should not have live vaccinations. Live vaccines can make you unwell because they contain a very weak version of the illness they will protect you against. Live vaccines include Zostavax®, which is a shingles vaccine, and the yellow fever vaccine.
It is important to ask your doctor, nurse or pharmacist for advice about having vaccinations. They can explain what vaccines are right for you and when it is best to have them.
Erectile dysfunction
You may have difficulty getting or maintaining an erection while taking ponatinib. Talk with your cancer team if you are worried about this.
Contraception
Your doctor, nurse or pharmacist will advise you not to get pregnant or make someone pregnant while having this treatment and for some time afterwards. The drugs may harm a developing baby. It is important to use contraception to prevent pregnancy. Follow their advice about:
- what types of contraception to use
- how long after treatment you should continue to use contraception.
Ponatinib may make the contraceptive pill less effective. People who take the contraceptive pill are advised to use another type of contraception along with the contraceptive pill. Talk to your doctor if you need more information about this.
Breastfeeding
You are advised not to breastfeed while having this treatment, or for some time after treatment ends. This is because the drugs could be passed to the baby through breast milk.
Your doctor, nurse or pharmacist can give you more information.
Fertility
Some cancer drugs can affect whether you can get pregnant or make someone pregnant. If you are worried about this, it is important to talk with your doctor before you start treatment.
Medical and dental treatment
If you need medical treatment for any reason other than cancer, always tell the healthcare professional that you are having cancer treatment. Give them the contact details for your cancer doctor or cancer team so they can ask for advice.
If you have appointments with a dentist, always tell them you are having cancer treatment. Talk to your cancer team before you have any dental treatment.
About our information
This information has been written, revised and edited by Macmillan Cancer Support’s Cancer Information Development team. It has been reviewed by expert medical and health professionals and people living with cancer.
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References
Visit the electronic Medicines Compendium (eMC) to download a Patient Information Leaflet (PIL) for more detailed information. The leaflet lists all known side effects.
Date reviewed
Our cancer information meets the PIF TICK quality mark.
This means it is easy to use, up-to-date and based on the latest evidence. Learn more about how we produce our information.
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