Impressive results from blood test that detects nearly 50 types of tumors

A blood test that detects more than 50 types of tumors could help speed up diagnosis.

According to one study, results from a trial in North America showed that the test was able to identify a range of cancers, three-quarters of which do not have any form of screening program.

More than half of cancers were detected at an early stage, where they are easier to treat and potentially curable.

The Galleri test, manufactured by US pharmaceutical firm Grail, can detect fragments of cancerous DNA that have broken away from a tumour and are circulating in the blood. It is currently being tested by the NHS.

The study involved 25,000 people from the US and Canada over a year, with almost one in 100 of them receiving a positive result. For 62% of these cases, cancer was later confirmed.

Lead researcher Dr. Nima Nabavizadeh said the data showed the test could "fundamentally change" their approach to cancer detection.

The analysis can help detect many types of cancer earlier, when the chances of successful treatment or even cure are greater.

Results suggest that blood testing could eventually play a major role in early cancer diagnosis.

But scientists not involved in the research say more evidence is needed to show whether the blood test reduces cancer deaths.

The main results will be published at the European Society for Medical Oncology congress in Berlin on Saturday, but full details have not yet been released.

This will depend on the results of a three-year study involving 140,000 NHS patients in England, which will be published next year.

The National Health Service (NHS) has previously said that if the results are successful, the tests will be extended to a further one million people./ CNA

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