A drug used to relieve the debilitating symptoms of menopause may also be reducing the risk of invasive breast cancer , a new clinical trial by Northwestern University suggests.

Almost 60,000 women a year are diagnosed with a contained form of breast cancer that can indicate a higher risk of developing invasive tumors later in life.

The non-invasive cancer is typically detected during routine mammograms, accounts for up to 25 percent of all breast cancer diagnoses, and has a 98 percent recovery rate after 10 years when removed by surgery.

However, to increase their chance of remaining cancer-free many patients also undergo treatments like radiation and hormone therapy following surgery. These treatments often have debilitating side effects. frameborder="0″ allow="acceleromete

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