1138 GMT February 22, 2020
In the pioneering British trial, 15 patients were given an infusion of the bug, before undergoing surgery to remove and examine tumors, telegraph.co.uk wrote.
In every case, cancer cells had been destroyed — and in one case, all traces of the disease had gone, the study found.
Scientists said they were ‘very excited’ about the findings, for patients with bladder cancer, which could also bring hope to those suffering from other major forms of the disease.
They said the virus could become a ‘universal agent’ to fight cancer, replacing conventional treatments like chemotherapy.
As well as reducing the size of all the tumors, the treatment, via a catheter to the bladder, had no significant side-effects in any of the patients, researchers said.
Bladder cancer is the tenth most common type of cancer in the UK, with 10,000 diagnoses annually.
Scientists said they hoped the treatment could be available in as little as three years, bringing hope to thousands of patients with diseases that are currently hard-to-treat.
Most tumors in the bladder do not have immune cells, making the disease particularly hard to treat.
But the study suggests that an infusion of a strain of the common cold virus — called coxsackievirus (CVA21) — was able to inflame the tumor and cause immune cells to rush into the cancer environment, targeting and killing the cancer cells.