Breakthrough fertility method may keep estrogen low during cancer treatment

NCT ID NCT03947151

First seen Apr 02, 2026 · Last updated Jun 13, 2026 · Updated 15 times

Summary

This study tested a new ovarian stimulation protocol using degarelix (a drug typically used for prostate cancer) to help breast cancer patients preserve their fertility before chemotherapy. The goal was to keep estrogen levels low while still collecting enough eggs for freezing. The study included 8 women aged 18-40 with invasive ductal breast cancer who needed chemotherapy. Researchers measured how many follicles (egg sacs) developed and whether estrogen stayed at safe levels.

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Contacts and locations

Locations

  • Hôpital Antoine Béclère

    Clamart, 92140, France

Conditions

Explore the condition pages connected to this study.