Using Letrozole to treat uterine fibroids

Letrozole for Treatment of Uterine Fibroids: A randomized, placebo-controlled trial

NIH-funded research University of California, San Francisco · NIH-10912014

This study is looking at how well Letrozole, a medication that lowers estrogen, can help women with uterine fibroids by easing symptoms like heavy bleeding and pelvic pain, and it's for those who want to explore a non-surgical option.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of California, San Francisco NIH-funded
Lab location1 site (San Francisco, United States)
Project IDNIH-10912014 on NIH RePORTER

What this research studies

This research investigates the effectiveness of Letrozole, a medication that inhibits estrogen production, in treating uterine fibroids, which are common tumors affecting many women. The study involves a randomized, placebo-controlled trial where participants will receive either Letrozole or a placebo to assess its impact on fibroid symptoms such as heavy bleeding and pelvic pain. By focusing on a non-surgical treatment option, the research aims to provide an alternative for women who prefer to avoid major surgery and its associated recovery time. Participants will be monitored for changes in fibroid size and symptom relief throughout the trial period.

Who could benefit from this research

Good fit: Ideal candidates for this research are premenopausal women diagnosed with uterine fibroids who experience significant symptoms.

Not a fit: Patients who have already undergone surgery for fibroids or those who are postmenopausal may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could provide a new, effective non-surgical treatment option for women suffering from uterine fibroids.

How similar studies have performed: Previous research has shown promise in using aromatase inhibitors for similar conditions, indicating potential for success in this approach.

Where this research is happening

San Francisco, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.