There is only a 5 percent chance gained that it will not return. Cancer is always in our bodies. I gave up on the drugs because of the damage it does to my other organs. I now eat a plant based diet and do not ingest ANY oils, as they never leave your body. I have on last appt, and I am confident I will not have a recurrance of breat cancer. It just wasnt worth it to me. I believe with surgey and radiation, my cancer was cured. These drugs havent been around that long to prove its need. It is all still in the testing stages, and they only follow the ones that are on the drugs, NOT the ones that dont take them. How do we know that in 20 years the damages to other organs will be more dangerous. But Pharma only follows the ones taking the pills...........