A trial looking at chemotherapy for people with advanced cancer of the stomach or food pipe (GO2)

Please note - this trial is no longer recruiting patients. We hope to add results when they are available.

Cancer type:

Oesophageal cancer
Stomach cancer




Phase 3

This trial is trying to find the best way to treat people with cancer of the stomach or cancer of the food pipe (oesophagus) who are not strong enough to have standard chemotherapy. The trial is supported by Cancer Research UK.

More about this trial

Doctors often treat advanced cancer Open a glossary item of the stomach or food pipe with chemotherapy. A combination of drugs called epirubicin, oxaliplatin and capecitabine (EOX) is a type of chemotherapy they often use.

For some people, chemotherapy with 3 drugs is too strong, but a milder form of chemotherapy may still be helpful. For others, it may be best not to have chemotherapy at all, but to have other treatments to control cancer symptoms. This is called best supportive care Open a glossary item. There is currently no way for doctors to be sure what will be the best treatment for each individual patient.

In this trial, researchers are looking at a treatment plan that includes just 2 of the 3 standard Open a glossary item chemotherapy drugs – oxaliplatin and capecitabine (OxCap).

Some people in the trial will have the drugs at the same doses that are normally used when people have all 3 drugs. So they will be having two thirds of full standard treatment. Other people will have the same drugs but at reduced doses, and some people won’t have any chemotherapy, but will have best supportive care.

The aim of the trial is to work out which treatment is best for frail or elderly people with advanced cancer of the stomach or food pipe.

Who can enter

You may be able to enter this trial if you

  • Have advanced cancer Open a glossary item of the stomach, the food pipe (oesophagus),  or the area where the stomach and oesophagus meet (cancer of the gastro oesophageal junction)
  • Are going to have treatment with the aim of controlling the cancer and its symptoms, rather than curing the cancer (you are having palliative treatment Open a glossary item)
  • Are fit enough to have any of the chemotherapy treatments in this trial
  • Have satisfactory blood test results
  • Are at least 18 years old
  • Are willing to use reliable contraception during the trial and for up to 6 months afterwards if there is any chance you or your partner could become pregnant

You cannot enter this trial if you

  • Are fit enough and willing to have EOX chemotherapy
  • Have already had palliative chemotherapy for stomach or oesophageal cancer
  • Have problems with your liver or kidneys
  • Have any other cancer if your doctor thinks it could affect the outcome of this trial treatment
  • Have any other medical condition or mental illness that could affect your taking part
  • Are pregnant or breast feeding

Trial design

This phase 3 trial aims to recruit more than 500 people. Everybody taking part has best supportive care. Most of the people taking part also have chemotherapy.

At the beginning of the trial, your doctor will talk to you about whether or not you are likely to benefit from having chemotherapy. If they think you are, you follow pathway 1 and definitely have chemotherapy. This will include 2 of the 3 standard chemotherapy drugs - either at the full standard dose, or a reduced dose.

But if you and your doctor agree that it is uncertain whether you will benefit from chemotherapy, you follow pathway 2. You may have 2 chemotherapy drugs at a reduced dose, or you may have best supportive care alone.

The trial is randomised, so within each pathway, the treatment you have is decided by a computer. Neither you nor your doctor will be able to decide which treatment you have.

The doctors are looking at 3 different doses of chemotherapy. They are calling these doses levels A, B and C. People following pathway 1 have one of the following 3 treatments

  • 2 of the 3 standard drugs (OxCap), at level A
  • Level B dose of OxCap
  • Level C dose of OxCap

People following pathway 2 have one of the following treatments

  • Level C dose of OxCap
  • Best supportive care alone

If you have chemotherapy, you have oxaliplatin through a drip into a vein once every 3 weeks. It takes about 2 hours each time. You take capecitabine tablets twice every day. Each 3 week period is called a cycle of treatment.

You have 3 cycles of treatment lasting 9 weeks. Then you have a CT scan and see the trial team.

If you aren’t having bad side effects and the trial doctor can see that the treatment is controlling your cancer, you can carry on having chemotherapy for as long as it helps you. But this is not usually for longer than 6 months.

The trial team will ask you to fill out a questionnaire before you start treatment, and then at different times during and after you have finished treatment. The questionnaire will ask about side effects and how you’ve been feeling.  This is called a quality of life study.

Hospital visits

You see the trial team and have some tests before you start treatment. The tests include

  • Physical examination
  • Blood tests
  • CT scan

The trial team will also time how long it takes you to walk 3 metres (about 10 feet).

If you have chemotherapy, you go to hospital once every 3 weeks for as long as you continue to have treatment.  At each visit, you have blood tests. The trial team will ask you to fill in a questionnaire about how you are feeling each week. This takes about 5 minutes. In the weeks that you don’t go to hospital, a nurse will phone you at home to ask the questions.

After 9 weeks of treatment, you have a CT scan. You also fill in a longer questionnaire about your general health. This takes about 20 minutes. If you continue to have chemotherapy, you have another CT scan after 18 weeks of treatment.

When you finish chemotherapy, you see the trial team every 9 weeks for up to a year. You fill in a 5 minute questionnaire each time.

If you are following pathway 2 and have best supportive care alone, you see the trial team every 9 weeks for up to a year. You may have blood tests.

At the first 2 visits, the trial team will ask you to fill in a 5 minute questionnaire about how you are feeling. If you are not able to go to hospital, the trial team will post the questionnaire to your home. Or a nurse will phone you to ask the questions.

The maximum length of time anybody is involved in the trial is 1 year. After a year, the trial team will continue to check your medical records to see how you are.

Side effects

The side effects of oxaliplatin include

  • Pain in your arm when you have the drip
  • Numbness and tingling in your hands and feet (peripheral neuropathy)
  • An allergic reaction to the drug - but this is very rare

The side effects of capecitabine include

We have more information about having oxaliplatin and capecitabine together.

Recruitment start:

Recruitment end:

How to join a clinical trial

Please note: In order to join a trial you will need to discuss it with your doctor, unless otherwise specified.

Please note - unless we state otherwise in the summary, you need to talk to your doctor about joining a trial.

Chief Investigator

Professor Matt Seymour
Dr Peter Hall

Supported by

Cancer Research UK
Experimental Cancer Medicine Centre (ECMC)
NIHR Clinical Research Network: Cancer
St James's University Hospital
University of Leeds

Other information

This is Cancer Research UK trial number CRUK/12/022.

Questions about cancer? Contact our information nurses

Freephone 0808 800 4040

Last review date

CRUK internal database number:


Please note - unless we state otherwise in the summary, you need to talk to your doctor about joining a trial.

Around 1 in 5 people take part in clinical trials

3 phases of trials

Around 1 in 5 people diagnosed with cancer in the UK take part in a clinical trial.

Last reviewed:

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