New study investigates why breast cancer is more aggressive in young women

NCT ID NCT07601152

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study aims to understand why breast cancer in young women is often more aggressive. Researchers will look at how pregnancy and breastfeeding might influence the disease. They will collect information from 1,000 women aged 45 or younger (and a comparison group aged 55+) with certain types of breast cancer. The goal is to learn more about the biology of these cancers, not to test a new treatment.

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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

Study contacts

  • Contact

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

  • Contact

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

Locations

  • Institut de Cancerologie de L'Ouest

    Saint-Herblain, 44800, France

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

    Contact

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