Search Results

By The ASCO Post Staff  / Friday, August 12, 2016 9:13 AM

New Study Shows Breast Tumors May Evolve in Response to Hormone Therapy

Many breast tumors grow in response to female hormones, especially estrogen. Drugs that reduce estrogen levels in the body often are effective in reducing tumor size and preventing recurrence of the cancer. But some tumors become resistant to these therapies and continue to grow and spread. A new...