Having chemotherapy treatment for neuroendocrine tumours (NETs)

Chemotherapy uses anti cancer (cytotoxic) drugs to destroy neuroendocrine tumour (NET) cells. The drugs circulate throughout your body in the bloodstream. 

Chemotherapy isn’t usually the first choice of treatment for NETs. You might have it for a NET that:

  • is fast growing (poorly differentiated)
  • has spread to other parts of the body (metastatic)

Chemotherapy seems to work better for some types of NETs than others. Doctors continue to look into this and the best combinations of chemotherapy drugs. Your doctor might offer you chemotherapy as part of a clinical trial. 

You can find out more about research and clinical trials in the sections about the different types of NETs.

Types of chemotherapy

There are a number of different chemotherapy drugs for NETs. You usually have a combination of 2 or 3 drugs.

The type of chemotherapy drugs you have depends on different things such as where the tumour started and how fast it’s growing. The most common types of chemotherapy drugs for NETs are:

  • streptozocin and fluorouracil
  • streptozocin and doxorubicin
  • temozolomide
  • capecitabine
  • etoposide and cisplatin or carboplatin

How you have chemotherapy

You usually have chemotherapy as a drip into your bloodstream (intravenously). Some drugs come as tablets or capsules that you swallow whole.

Into your bloodstream

You have treatment through a thin short tube (a cannula) that goes into a vein in your arm each time you have treatment.

Or you might have treatment through a long line: a central line, a PICC line or a portacath. These are long plastic tubes that give the drug into a large vein in your chest. The tube stays in place throughout the course of treatment. This means your doctor or nurse won't have to put in a cannula every time you have treatment.

Taking your tablets or capsules

You must take tablets and capsules according to the instructions your doctor or pharmacist gives you.

Whether you have a full or empty stomach can affect how much of a drug gets into your bloodstream.

You should take the right dose, not more or less.

Talk to your healthcare team before you stop taking a cancer drug, or if you have missed a dose.

Where you have chemotherapy

You usually have treatment into your bloodstream at the cancer day clinic. You might sit in a chair for a few hours so it’s a good idea to take things in to do. For example, newspapers, books or electronic devices can all help to pass the time. You can usually bring a friend or family member with you.

You have some types of chemotherapy over several days. You might be able to have some drugs through a small portable pump that you take home.

For some types of chemotherapy you have to stay in a hospital ward. This could be overnight or for a couple of days.

Some hospitals may give certain chemotherapy treatments to you at home. Your doctor or nurse can tell you more about this.

Watch the video below about what happens when you have chemotherapy. It is almost 3 minutes long.

Before you start chemotherapy

You need to have blood tests to make sure it’s safe to start treatment. You usually have these a few days before or on the day you start treatment. You have blood tests before each round or cycle of treatment.

Your blood cells need to recover from your last treatment before you have more chemotherapy. Sometimes your blood counts are not high enough to have chemotherapy. If this happens, your doctor usually delays your next treatment. They will tell you when to repeat the blood test. 

Side effects

Common chemotherapy side effects include:

  • feeling sick
  • loss of appetite
  • losing weight
  • feeling very tired
  • increased risk of getting an infection
  • bleeding and bruising easily
  • diarrhoea or constipation
  • hair loss
Contact your doctor or nurse immediately if you have signs of infection. These include a temperature above 37.5C or below 36C, or generally feeling unwell. Infections can make you very unwell very quickly.

Side effects depend on:

  • which drugs you have
  • how much of each drug you have
  • how you react

Tell your treatment team about any side effects that you have.

Coping

Treatment for neuroendocrine tumours can be difficult to cope with for some people. Your nurse will give you phone numbers to call if you have any problems at home. 

If you have any questions about treatment, you can talk to Cancer Research UK’s information nurses on freephone 0808 800 4040, 9am to 5pm, Monday to Friday.

This page is due for review. We will update this as soon as possible.

  • Guidelines for the management of gastroenteropancreatic neuroendocrine tumours (including carcinoid) tumours (NETs) 
    J Ramage and others 
    Gut, 2012. Vol 61, Pages 6-32

  • Gastroenteropancreatic neuroendocrine neoplasms: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up
    M. Pavel and others
    Annals of Oncology 2020, Vol 31, Issue 5 

  • Electronic Medicine Compendium (eMC)
    Accessed March 2021

  • Pulmonary neuroendocrine (carcinoid) tumours: European Neuroendocrine Tumor Society expert consensus and recommendations for best practice for typical and atypical pulmonary carcinoids
    ME Caplin and others
    Annals of Oncology, 2015. Vol 26, Issue 8, Pages 1604-1620

  • Metastatic well-differentiated gastrointestinal neuroendocrine (carcinoid) tumors: Systemic therapy options to control tumor growth and symptoms of hormone hypersecretion
    JA Chan and M Kulke
    UpToDate, Accessed March 2021

  • High-grade gastroenteropancreatic neuroendocrine neoplasms
    H Sorbye and JR Strosberg
    UpToDate, Accessed March 2021

Last reviewed: 
18 Mar 2021
Next review due: 
18 Mar 2024

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