Tiny estrogen tablet studied for breast cancer Survivors' safety

NCT ID NCT00984399

First seen Jan 02, 2026 · Last updated May 15, 2026 · Updated 18 times

Summary

This study looked at whether a low-dose vaginal estrogen tablet (Vagifem) is safe for women who have had breast cancer and are taking hormone-blocking drugs called aromatase inhibitors. 31 postmenopausal women with a history of breast cancer used the tablet for vaginal dryness, and researchers measured their blood estrogen levels over 12 weeks. The goal was to see if the estrogen gets absorbed into the bloodstream, which could potentially raise cancer risk.

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Contacts and locations

Locations

  • Memorial Sloan Kettering Cancer Center

    Basking Ridge, New Jersey, United States

  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065, United States

  • Memorial Sloan Kettering Cancer Center @ Suffolk

    Commack, New York, 11725, United States

  • Memorial Sloan Kettering Cancer Center@Phelps Memorial Hospital

    Sleepy Hollow, New York, United States

  • Memorial Sloan Kettering at Mercy Medical Center

    Rockville Centre, New York, United States

Conditions

Explore the condition pages connected to this study.