If you are a postmenopausal woman with breast cancer in your family, or you think you may be at high risk for the disease, you may want to do more than gaze wistfully at the night sky and wish on a lucky star.
Breast cancer is still the most common type of cancer diagnosed in women living in North America.
And it is still a particularly deadly one. But this is one clinical trial that will not leave you wondering whether you've been given a placebo or a powerful test drug. Every one of the potential 22,000 enrollees will have the opportunity to test one of two drugs for a five-year period. Enrollees are then followed for an additional two years. However, the study was not statistically designed to answer this question.