A Third Study Finds Bisphosphonates Reduce Breast Cancer Risk

Zosia Chustecka

March 10, 2010 — A third study, and the first to be published, has found a reduction in the risk for breast cancer among postmenopausal women taking bisphosphonates for the treatment of osteoporosis.
The new finding, reported in the March 2 issue of the British Journal of Cancer, comes from a case–control analysis of more than 6000 women in Wisconsin, half of whom were diagnosed with invasive breast cancer. It found that the use of bisphosphonates was associated with a 30% reduction in the risk for breast cancer.
"This large study provides new evidence that the use of bisphosphonates is associated with a potentially important reduction in breast cancer risk," lead author Polly Newcomb, PhD, MPH, head of the Cancer Prevention Program at the Fred Hutchinson Cancer Research Center in Seattle, Washington, said in a statement.