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    Human trials start with cancer treatment that primes immune system to kill off tumours

    Human trials have begun with a new cancer therapy that can prime the immune system to eradicate tumours around the body. 
    The treatment that works similarly to a vaccine is a combination of two existing drugs, of which tiny amounts are injected into the solid bulk of a tumour. 
    It works by reactivating immune cells suppressed by the cancer, triggering a body wide immune response which was able to “eliminate tumours all over the body” even ones unrelated to the initially treated cancer, according to researchers at Stanford University who developed it.
    It is thought that it could be used to prevent cancer returning after surgery.
    Following successful trials with mice, the researchers said it was now ready to be tested on humans. 
    One of the immunotherapy drugs used is already approved for use in humans, while the other is undergoing trials. 
    Individually they have to be matched to a particular type of cancer, but when used in combination it appears they have a much more potent and wide-ranging impact.

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