The life of a woman with terminal breast cancer has been saved by a pioneering new therapy, say US researchers.

It involved pumping 90 billion cancer-killing immune cells into her body.

Judy Perkins had been given three months to live, but two years later there is no sign of cancer in her body.

The team at the US National Cancer Institute says the therapy is still experimental, but could transform the treatment of all cancer.

Judy – who lives in Florida – had spreading, advanced breast cancer that could not be treated with conventional therapy.

She had tennis ball-sized tumours in her liver and secondary cancers throughout her body.

She told the BBC: "About a week after [the therapy] I started to feel something, I had a tumour in my chest that I could feel shrinking.

“It took another week or two for it to completely go away.”

She remembers her first scan after the procedure when the medical staff “were all very excited and jumping around”.

It was then she was told that she was likely to be cured.

Now she’s filling her life with backpacking and sea kayaking and has just taken five weeks circumnavigating Florida.