419RO Emergence of ESR1 mutations (ESR1m) in ctDNA during first-line (1L) endocrine-based therapy in HR+/HER2− advanced breast cancer: Findings from the SERENA-6 trial

ESMO Open 2026 Open access

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Authors: Francois Clement Bidard, Y.H. Park, E. Mayer, W. Janni, Massimo Cristofanilli, Cynthia X. Ma, Giampaolo Bianchini, H. Iwata, K Kalinsky, S. Chia, P.A. Fasching, Adam Brufsky
+8 more A Zambelli, C-S. Huang, M Oliveira, H. Ishiguro, S Fox, C Morrow, L.R. Robert Faja, Nicholas C. Turner
DOI: 10.1016/j.esmoop.2026.107442
Cited by: 1

Fields of Study & Subjects

Estrogen and related hormone effects Advanced Breast Cancer Therapies Breast Cancer Treatment Studies

Publication details

Journal / source
ESMO Open
Publisher
Elsevier BV
Volume
11
Pages
107442–107442
Publication date
1 May 2026
Language
EN