A study looking at PET-CT scan in men with prostate cancer and a DNA gene mutation (GENPET)

Cancer type:

Prostate cancer

Status:

Open

Phase:

Other

This study is looking at whether a type of PET-CT scan shows how much prostate cancer is present in men who have a DNA Open a glossary item Repair gene Open a glossary item change (mutation Open a glossary item).  

This study is open to men with prostate cancer who are going to the Royal Marsden NHS Foundation Trust and have a gene change in one of the following genes:

  • BRCA1 Open a glossary item
  • BRCA2 Open a glossary item
  • MSH2
  • MSH6
  • MLH1
  • PMS2
  • CHEK2
  • PALB2
  • ATM

More about this trial

Research has shown that prostate cancer can be more aggressive in men who have changes in certain DNA Repair genes. So it is important they have the best treatment for their stage of cancer.

In this study researchers are using a PET-CT scan Open a glossary item with a radioactive tracer Open a glossary item. The radioactive tracer is given as an injection as part of the scan. It travels in the bloodstream and is taken up by areas in the body where there may be cancer present. The researchers want to see if it is better at showing if the cancer has spread elsewhere in the body such as to the lymph nodes, lungs, liver or bones.

They will compare it with the results of more commonly used scans such as:

  • MRI scan Open a glossary item
  • CT scan Open a glossary item
  • bone scan Open a glossary item         

It is unlikely that taking part in this study will change any treatment you have.

Researchers hope that this type of PET-CT scan can produce a more accurate picture of cancer. If so, this could lead to more targeted treatments in the future.

Who can enter

The following bullet points list the entry conditions for this study. Talk to your doctor or the study team if you are unsure about any of these. They will be able to advise you.

You may be able to join this study if you are a patient at the Royal Marsden Hospital. You are at least 18 years old and have prostate cancer with a change (mutation) in one of the following DNA Repair genes:

  • BRCA1
  • BRCA2
  • MSH2
  • MSH6
  • MLH1
  • PMS2
  • CHEK2
  • PALB2
  • ATM

​Your doctor will know if your cancer has one of these gene changes. 

And you are in one of the following situations:

  • You are newly diagnosed with prostate cancer.
  • You were treated with radical surgery or radiotherapy more than 6 months ago and your blood tests show your cancer might be growing and you are not currently having hormone treatment or chemotherapy.
  • You are on active surveillance and your PSA Open a glossary item is doubling every 6 months or less, or a scan or tissue sample (biopsy) shows your cancer might be growing.

You cannot join this study if any of these apply. You:

  • have prostate cancer that has spread outside of the prostate gland (locally advanced or metastatic prostate cancer)
  • have had cancer treatment in the last 6 months
  • are having any experimental drug treatment
  • are taking steroids Open a glossary item
  • have had any other type of cancer in the last 5 years apart from non melanoma skin cancer Open a glossary item
  • have had certain inflammatory conditions such as inflammatory bowel disease or sarcoidosis
  • have had certain infections such as tuberculosis (TB)
  • are not able to have an MRI scan for any reason such as having a pacemaker, metal surgical clips, or a fear of closed spaces (claustrophobia)

Trial design

The researchers need at least 50 men to join this study.

You have a PET-CT scan with the radioactive tracer. 

The PET-CT scan takes approximately 35 minutes. You have a small tube (cannula) put into one of the veins in the back of your hand or arm. Then you have the radioactive tracer Open a glossary item as an injection through the tube.

The tracer travels in the bloodstream and is taken up by areas of the body where there may be cancer. This then shows up on the scan. The tracer only remains in your body for a few hours.

If you have not had one done recently you also have:

  • an MRI or CT scan
  • a bone scan

The researchers then compare the results of the scans. You would have these scans as part of your routine care whether you are in this study or not. The only difference is that a second specialist reviews your scans. This is usual practice in clinical studies.  

The researchers ask you if they can look at your medical records 3 and 5 years after you have the scans. This is so they can see what has happened with your prostate cancer. 

Hospital visits

All men with a DNA Repair gene mutation who are going to the Royal Marsden Hospital have this type of PET-CT scan. The other scans are a part of your routine care. So you have no extra visits if you take part in this study.

Side effects

There are no side effects from taking part in this study.

We have information about having a:

Location

London

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 Rosalind Eeles

Supported by

Institute of Cancer Research (ICR)
NIHR Clinical Research Network: Cancer
The Royal Marsden Hospital NHS Foundation Trust

If you have questions about the trial please contact our cancer information nurses

Freephone 0808 800 4040

Last review date

CRUK internal database number:

12587

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

Last reviewed:

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