Is HER2 breast cancer serious? Experts consider the HER2+ breast cancer to be more aggressive than some other breast cancers. That means it may grow faster without treatment. The good news is that treatment for the HER2+ type has improved, so the outlook for you or a loved one is likely better than what some of the numbers show.
Is HER2 breast cancer curable? HER2-positive breast cancer is highly curable because of the availability of these HER2-targeted therapies, so we treat patients fairly aggressively upfront to reduce the risk of them experiencing a stage IV recurrence.
What is HER2 breast cancer? HER2-positive breast cancer is a breast cancer that tests positive for a protein called human epidermal growth factor receptor 2 (HER2). This protein promotes the growth of cancer cells. In about 1 of every 5 breast cancers, the cancer cells have extra copies of the gene that makes the HER2 protein.
What is the survival rate of HER2-positive? The survival rate at four years among women with HR+/HER2− is estimated to be 92.5%, followed by HR+/HER2+ at 90.3%, HR−/HER2+ at 82.7%, and HR−/HER2− at 77.0% . The HER2 (human epidermal growth factor receptor 2) oncogene is positive in about 20% of primary invasive breast cancers .