Can a breast cancer drug shrink fibroids? new trial aims to find out

NCT ID NCT06143631

First seen Jun 25, 2026 · Last updated Jul 23, 2026 · Updated 3 times

Summary

This study tests whether the drug letrozole can improve symptoms and shrink fibroids in women with uterine fibroids. 140 participants will receive either letrozole or a placebo daily for 12 weeks. The main goal is to see if letrozole reduces symptom severity and improves quality of life.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
Letrozole 2.5 mg tablet taken daily
What this could lead to
If it works, this could offer a non-surgical option to reduce fibroid symptoms like heavy bleeding and pelvic pressure.
What could go wrong
This is a relatively small, short-term trial (12 weeks). Letrozole may not work better than placebo, and side effects are possible. Results may not apply to all women.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Duke University

    RECRUITING

    Durham, North Carolina, 27710, United States

  • Mayo Clinic

    RECRUITING

    Rochester, Minnesota, 55905, United States

  • University of California, Los Angeles

    RECRUITING

    Los Angeles, California, 90095, United States

  • University of California, San Francisco

    RECRUITING

    San Francisco, California, 94115, United States

    Contact Email: •••••@•••••

    Contact Email: •••••@•••••

  • University of Mississippi Medical Center

    RECRUITING

    Jackson, Mississippi, 39216, United States

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