Can fish oil boost Tamoxifen's power against breast cancer?

NCT ID NCT06195306

First seen Nov 12, 2025 · Last updated Apr 28, 2026 · Updated 25 times

Summary

This study looks at whether adding high-dose omega-3 fatty acids to low-dose tamoxifen can better reduce breast cancer risk in overweight postmenopausal women who are already at higher risk. Tamoxifen blocks estrogen in breast tissue, while omega-3s may help with fat-related cancer risks. About 66 women will take tamoxifen alone or with omega-3s to see which approach works better.

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Contacts and locations

Locations

  • Ohio State University Comprehensive Cancer Center

    NOT_YET_RECRUITING

    Columbus, Ohio, 43210, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • University of Kansas Cancer Center

    RECRUITING

    Kansas City, Kansas, 66160, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • University of Michigan Rogel Cancer Center

    RECRUITING

    Ann Arbor, Michigan, 48109, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

Conditions

Explore the condition pages connected to this study.