The vaccine appears to be safe and effective against triple-negative breast cancer -- a type that can’t be treated with hormone therapy because it isn’t driven by any of the three hormones that typically fuel breast cancer.

A groundbreaking treatment has been announced for women with an extremely aggressive form of breast cancer. Siteman Cancer Center just released the results of a clinical trial showing a new vaccine that is preventing cancer from returning.

Breast cancer patients have been given fresh hope after a new vaccine showed “promise” in treating an aggressive form of the disease. The results came in a clinical trial involving American patients with triple-negative breast cancer who received an experimental jab designed to prevent the recurrence of tumours.