What is MPT?

MPT is a combination treatment used to treat myeloma. It is best to read this information with our general information about chemotherapy, immunotherapy, steroids and the type of cancer you have. 

MPT is named after the initials of the drugs used in the treatment. The drugs are:

  • M – a chemotherapy drug called melphalan
  • P – a steroid called prednisolone 
  • T – an immunotherapy drug called thalidomide

Your doctor 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.

How MPT is given

During treatment you usually see a cancer doctor, a chemotherapy nurse or a specialist nurse, and a specialist pharmacist. This is who we mean when we mention doctor, nurse or pharmacist in this information.

Before or on the day of treatment, a nurse or person trained to take blood (phlebotomist) will take a blood sample from you. This is to check that your blood cells are at a safe level for you to have treatment.

You will see a doctor or nurse before you have treatment. They will ask you how you have been feeling. If your blood results are okay, the pharmacist will prepare your treatment. Your nurse will tell you when your treatment is likely to be ready.

Your course of MPT

MPT is usually given as a several cycles of treatment over a few months. MPT is taken as capsules and tablets. You can take it at home. 

A cycle of MPT is usually 28 days (4 weeks). 

You take:

  • melphalan and prednisolone tablets for the first 4 or 7 days of the 28-day cycle 
  • thalidomide capsules on each day of the 28-day cycle.

Your nurse or doctor will discuss your treatment plan with you. They may give you a copy of the treatment plan to take home with you. 

The nurse or pharmacist will give you the capsules and tablets to take home. You may be given capsules and tablets of different strengths. 

Your nurse or pharmacist may also give you anti-sickness drugs and other medicines to take home. Take all your capsules and tablets exactly as you have been told to. This is important to make sure they work as well as possible for you.

Taking MPT capsules and tablets

You should swallow all the capsules and tablets whole with a glass of water. They should not be chewed, broken, opened or crushed. Take them at the same time every day.

Always take them exactly as explained. This is important to make sure they work as well as possible for you.

It is important to:

  • take thalidomide at bedtime, as it can make you feel sleepy
  • take prednisolone with, or just after breakfast.

If you forget to take the melphalan or prednisolone you should take the missed dose as soon as possible within the same day. If a full day has gone by, tell your doctor or nurse. 

If you forget to take the thalidomide and less than 12 hours have passed, take your capsules straight away. If more than 12 hours have passed, do not take your missed dose. Just take your usual dose at the usual time the next day. Tell your doctor or nurse.

Do not take a double dose unless your doctor tells you to.

Other things to remember about your capsules and tablets:

  • Keep the melphalan in the fridge.
  • Keep the prednisolone and thalidomide in the original package and at room temperature, away from heat and direct sunlight.
  • Keep them safe and out of sight and reach of children.
  • Wash your hands after taking your tablets and capsules. 
  • Other people should avoid direct contact with thalidomide capsules and melphalan tablets.
  • Thalidomide packaging and capsules need to be handled safely. It is important that you, or anyone who helps you with your medicines, follows the advice from your doctor, nurse and pharmacist.
  • If you are sick (vomit) just after taking the capsules or tablets, contact the hospital. Do not take another dose.
  • If your treatment is stopped, return any unused capsules or tablets to the pharmacist.

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. 

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.

Common side effects

Risk of infection

This treatment can reduce the number of white blood cells in your blood. These cells fight infection. If the number of white blood cells is low, you are more likely to get an infection. A low white blood cell count is sometimes called neutropenia.

Your doctor may give you antibiotics and other drugs to try to stop you getting an infection. These are called prophylactic medicines.

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. Contact the hospital straight away on the 24-hour contact number you have been given if:

  • your temperature goes over 37.5°C (99.5°F)
  • you suddenly feel unwell, even with a normal temperature
  • you have symptoms of an infection
  • your temperature goes below 36°C (96.8°F).

Symptoms of an infection include:

  • feeling shivery and shaking
  • a sore throat
  • a cough
  • breathlessness
  • diarrhoea
  • needing to pass urine (pee) a lot, 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 needed, your doctor may reduce or delay your treatment for a short time, until your cell count increases.

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.

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.

Blood clot risk

This treatment can increase the risk of a blood clot. Symptoms of a blood clot include:

  • throbbing pain, redness or swelling in a leg or arm
  • suddenly feeling breathless or coughing
  • sharp chest pain, which may be worse when you cough or take a deep breath.

If you have any of these symptoms, contact the hospital straight away on the 24-hour contact number you have been given. If you cannot get through to your doctor, call the NHS urgent advice number on 111.

A blood clot is serious, but it can be treated with drugs that thin the blood (anticoagulants). Your doctor or nurse can give you more information.

You can help reduce the risk of developing a blood clot by:

  • staying active during treatment
  • drinking plenty of fluids, especially water.

You may be given anticoagulants to help prevent a clot.

Feeling sick

Your doctor, nurse or pharmacist will prescribe anti-sickness drugs to help prevent or control sickness. Take the drugs exactly as they tell you to, even if you do not feel sick. It is easier to prevent sickness than to treat it after it has started.

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.

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. 

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.

Hair loss

Your hair will get thinner. Or you may lose all the hair from your head. You may also lose your eyelashes and eyebrows, as well as other body hair. Hair loss usually starts after your first or second treatment.

If you want to cover up hair loss, there are different ways you can do this. Your nurse will give you information about coping with hair loss

Remember to protect your skin from the sun. Use suncream with a sun protection factor (SPF) of at least 30 on your scalp. Or cover up with a hat or scarf.

Hair loss is almost always temporary. Your hair will usually grow back after treatment ends.

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.

Dizziness, blurred vision or feeling drowsy

This treatment can cause dizziness, blurred vision or make you feel sleepy (drowsy). Do not drive or operate machinery if you have these side effects. Talk to your doctor or nurse if you notice any of these symptoms.

Do not drink alcohol while you are taking thalidomide as this can make the drowsiness worse. 

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.

Shaking (tremor)

You make get shaky hands. This usually gets better when you finish your treatment. Tell your doctor or nurse if you notice this.

Tummy pain or indigestion

Steroids can irritate the stomach lining. Tell your doctor or nurse if you have pain in your tummy (abdomen), or indigestion. They can give you drugs to help reduce stomach irritation. Take your tablets with food to help protect your stomach.

Rarely, this treatment can cause a blockage in the bowel. Contact the hospital straight away  if your pain is severe and you are being sick (vomiting).

Increased appetite

Steroids can make you feel hungrier than usual, and you may gain weight. Your appetite should go back to normal when you stop taking steroids. If you are worried about gaining weight, talk to your doctor or nurse. 

Raised blood sugar levels

Steroids can raise your blood sugar levels. Your nurse will check your blood regularly for this. They may also test your urine for sugar. If you have a raised blood sugar level, you may: 

  • feel thirsty 
  • need to pass urine (pee) more often  
  • feel tired.  

Tell your doctor or nurse if you have these symptoms. 

If you have diabetes, your blood sugar levels may be higher than usual. Your doctor will talk to you about how to manage this. You may need to change your insulin or tablet dose.

Mood and behaviour changes

Steroids can affect your mood. You may:

  • feel anxious or restless
  • have mood swings
  • have problems sleeping.

Taking your steroids in the morning may help you sleep better at night.

Tell your doctor or nurse if you have any of these side effects. They may make some changes to your treatment if the side effects become a problem.

Skin changes

This treatment may affect your skin. Your doctor or nurse can tell you what to expect. If your skin feels dry, try using an unperfumed moisturising cream every day. This treatment can cause a rash, which may be itchy.

Very rarely, thalidomide may cause a more serious skin condition. You may have a skin rash which then blisters and your skin can peel. You may also feel unwell with flu-like symptoms such as a high temperature and joint pain. If you have any of these symptoms, contact your doctor or hospital straight away.

Always tell your doctor or nurse about any skin changes. They can give you advice and may give you creams or medicines to help. Any changes to your skin are usually temporary and improve when treatment finishes.

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.

Build-up of fluid

Your ankles and legs may swell because of fluid building up. Tell your doctor or nurse if this happens. They may give you medicines that can help. If the swelling is uncomfortable, they may give you support stockings. When sitting, it can help to put your legs up. The swelling will usually get better when treatment finishes.

Low blood pressure

Thalidomide can cause a temporary fall in your blood pressure. This can make you feel dizzy for a few moments if you stand up quickly. It can help to move slowly from lying to sitting and from sitting to standing.

Tell your doctor or nurse if you have ever had problems with your blood pressure.

Effects on the heart

Sometimes thalidomide can affect the heart. You may notice your heart feels like it is beating too slowly. Let your doctor know if this happens. You may have tests to see 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 your doctor straight away on the 24-hour number the hospital has given you if you have any of these symptoms during or after treatment:

  • pain or tightness in your chest
  • breathlessness
  • dizziness
  • changes to your heartbeat.

Other conditions can cause these symptoms, but it is important to get them checked by a doctor. If you cannot get through to your doctor, call the NHS urgent advice number on 111.

Effects on the lungs

This treatment can cause changes to the lungs. Tell your doctor, nurse or pharmacist if you develop: 

  • a cough that does not go away
  • wheezing
  • breathlessness.

You should also tell them if any existing breathing problems get worse. You may have tests to check your lungs.

Changes in the way your liver or kidneys work

This treatment can affect how your kidneys and liver work. This is usually mild and goes back to normal after treatment. You will have blood tests to check how well your kidneys and liver are working.

Hepatitis B and herpes zoster reactivation

If you have had Hepatitis B (a liver infection) in the past, thalidomide treatment can make it active again. Your doctor or nurse will talk to you about this and test you for Hepatitis B.

The herpes zoster virus (which causes chickenpox) can also become active again and cause shingles. You may be given medicines to help prevent this.

Changes in hearing

Thalidomide may cause hearing changes, including some hearing loss. Tell your doctor if you notice any changes in your hearing.

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.

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.

Second cancer

This treatment can increase the risk of developing a second cancer years later. This is rare. The benefits of treatment usually far outweigh this risk. Your doctor can talk to you about this.

Other information

Preventing pregnancy when taking thalidomide

If you are able to get pregnant, you will have a pregnancy test before starting treatment with thalidomide. This will be repeated every 4 weeks during treatment, or more often if your periods are irregular. You will also have a pregnancy test 4 weeks after treatment finishes. 

You must use an effective form of contraception, such as:

  • an implant
  • injection 
  • or a progesterone-only oral pill. 

The combined oral contraceptive pill is not recommended because it increases your risk of developing blood clots. 

You must use contraception for 4 weeks before treatment, during treatment, and for 4 weeks after treatment finishes. If you think you may be pregnant at any time during your treatment, contact your doctor or specialist nurse straight away.

If you can make someone pregnant

If your partner is able to get pregnant, you must use a condom during sex while taking thalidomide and for 1 week after treatment finishes. This is to protect your partner from thalidomide, which can pass into your semen. You must do this even if you have had a vasectomy.

If your partner thinks they might be pregnant during your treatment, contact your doctor or specialist nurse straight away.

Donating blood and semen

You must not give blood or donate semen while taking thalidomide treatment or for 1 week after finishing 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: 

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.

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.

Changes to periods

If you have a period, these may become irregular or stop while you are having this treatment. This may be temporary, but it can sometimes be permanent. Your menopause may start sooner than it would have done. Your doctor or nurse can give you more information.

Sex

It is possible that small amounts of chemotherapy may be passed on through vaginal fluids or semen. If you have sex during this treatment, your cancer team will usually advise using condoms or a dental dam to protect your partner.

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

  • Reviewers

    This information has been written, revised and edited by Macmillan Cancer Support’s Cancer Information Development team. It has been reviewed by expert health professionals and people living with cancer.

    Our cancer information has been awarded the PIF TICK. Created by the Patient Information Forum, this quality mark shows we meet PIF’s 10 criteria for trustworthy health information.

The language we use

We want everyone affected by cancer to feel our information is written for them.

We want our information to be as clear as possible. To do this, we try to:

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  • use illustrations to explain text
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We use gender-inclusive language and talk to our readers as ‘you’ so that everyone feels included. Where clinically necessary we use the terms ‘men’ and ‘women’ or ‘male’ and ‘female’. For example, we do so when talking about parts of the body or mentioning statistics or research about who is affected.

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Date reviewed

Reviewed: 01 November 2022
|
Next review: 01 April 2025
Trusted Information Creator - Patient Information Forum
Trusted Information Creator - Patient Information Forum

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.