A study appearing today in the Journal of the National Cancer Institute finds that the drug tamoxifen helps prevent breast cancer from spreading to the second breast. The study, conducted by Linda Cook a researcher at the Fred Hutchinson Rese arch Center in Seattle, found that treatment with the drug reduced the risk of for cancer in the second breast by up to sixty percent. Contrary to some speculation, the study also finds that no association exists between the use of Tamoxifen and the deve lopment uterine or ovarian cancer. That finding clears the way for doctors to conduct clinical trials to test Tamoxifen as a preventive measure for women in high risk categories of developing breast cancer.
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