A major trial of an immunotherapy drug has shown it can be effective in some men with advanced prostate cancer.

The men had stopped responding to the main treatment options.

Researchers found that a small proportion of men, described as “super responders”, remained well even after the trial ended, despite a very poor prognosis before treatment.

Last week it was reported the same drug had proved effective in treating advanced head and neck cancers.

What is immunotherapy?

Immunotherapy uses our own immune systems to recognise and attack cancer cells.

It’s already being used as a standard treatment for some cancers such as melanomas – and being tested on many others too.

What did the study find?

It found that one in 20 men with advanced prostate cancer responded

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