Living with ESR1 mutations

Stories from people navigating ESR1 mutations — diagnosis, treatment, caregiving, and the ordinary days in between.

1 story

Blood sample and breast cancer pathology materials prepared for ESR1 biomarker testing

Women's Health

FDA Approves Imlunestrant Plus Abemaciclib for ESR1-Mutated Breast Cancer

The FDA approved imlunestrant plus abemaciclib for adults with ER-positive, HER2-negative, ESR1-mutated advanced breast cancer after endocrine progression. ESR1 testing now determines eligibility.

Dr. Abu Bakar · October 25, 2026 · 6 min

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