Instead of a patients going through chemotherapy and then radiation, the new approach calls for both to be given at the same time.
This double therapy is know a "synchronous chemo-radiation."
In a new study, researchers found that giving both treatments at once reduced the risk of cancer returning by 35 percent in women with early breast cancer.
British experts say the combo has few side effects and did not harm the patients' quality of life.
The study was presented at an International Cancer Conference in Sweden.