BC adjuvant therapy benefit can wax and wane over time

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http://www.sciencedaily.com/releases/2015/11/15110...

Breast cancer adjuvant therapy benefit can wax and wane over time, study finds

Therapies completed years ago may not keep covering survivors - More research of the long-term effects of adjuvant therapies for breast cancer is needed, after a study found that effects of these therapies often vary over time.

After breast cancer surgery, women are prescribed adjuvant (or follow-up) therapies such as chemotherapy and endocrine drugs to reduce the risk of the cancer returning. It's been assumed that the treatment effects of these therapies remain constant over time, but a new study from the Cancer Therapy & Research Center (CTRC) at The University of Texas Health Science Center at San Antonio suggests the opposite is true.