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Clinical Trial Summary

This research study is evaluating the effect of exercise on markers in breast tissue and blood of premenopausal women who have been found to have dense breast tissue on mammogram.


Clinical Trial Description

Women who exercise regularly have a lower risk of developing breast cancer, but the processes through which exercise could make cancer less likely to occur are not known. Some research in animals has shown that exercise can slow the growth of breast cancer cells and may increase the body's own defense mechanisms by stimulating the immune system. Very little is known about the effects of exercise on breast tissue in people. Understanding what changes occur in breast tissue and related markers in blood when a woman begins to exercise could provide more information about the ways in which exercise could prevent breast cancer.

The study is designed to look at the changes that occur in markers found in breast tissue and blood in women with dense breast tissue who take part in an exercise program. Density of breast tissue is a measure of how much of the breast tissue is made up of cells rather than fat. Breast density on mammogram has been linked to the risk of developing breast cancer, with women with higher degrees of breast density having a higher risk of developing breast cancer compared to women whose breasts are less dense.

Since the investigators do not know if these blood or breast tissue tests have any relationship to the development of breast cancer, the investigators do not plan to share the results of these tests with the participant or its physician. The investigators will give the participants the option of receiving the overall study results when the trial is completed, if the participant would like to receive them. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03657628
Study type Interventional
Source Dana-Farber Cancer Institute
Contact Jennifer Ligibel, MD
Phone 617-632-3800
Email Jennifer_Ligibel@dfci.harvard.edu
Status Not yet recruiting
Phase N/A
Start date August 31, 2018
Completion date August 31, 2024

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