Doctors develop new prostate cancer test that could prevent thousands of unnecessary treatments

New test that can spot which prostate cancers are most deadly could save thousands of men from unnecessary treatment

  • Currently, 20,000 men a year have unnecessary prostate cancer interventions
  • The new method lets doctors identify dangerous, fast-growing prostate tumors
  • A proportion of prostate tumors grow slowly and may never cause problems
  • Tumour’s aggressiveness is related to how much lactate it produces, say doctors

A test that spots dangerous prostate cancer tumors has been developed by doctors.

Current methods mean that differentiating between harmless and aggressive prostate tumors is incredibly difficult – especially at an early stage.

For some men, the tumor can be lethal, while in others they grow slowly and may never cause any problems.

As a result, as many as 20,000 men a year undergo unnecessary surgery or radiotherapy.

Currently, doctors can determine the size of a tumor – but not how active it is – by giving a patient an injection of a special solution and then an MRI scan.

The new test, developed by Cambridge University, could prevent thousands of men from having to undergo unnecessary interventions for prostate tumors that are benign

But in a trial, Cambridge University researchers attached a non-radioactive form of carbon, called carbon-13, to a sugar-like molecule and injected it into a vein near the tumor.

They discovered that if the carbon-13 was retained by the tumor, it indicated there was a high amount of lactate being produced – a sign that the cancer is aggressive.

Dr Nikita Sushentsev, who was involved in the study, said the breakthrough puts doctors one step closer to being able to ‘distinguish the tigers from pussycats’ in prostate cancer.

About 52,000 men are diagnosed with prostate cancer every year in the UK and roughly 30,000 of those have low-risk tumors.

The Daily Mail has campaigned for an urgent improvement in prostate cancer treatments and diagnosis.

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