ArticleNature communications2019
Aberrant FGFR signaling mediates resistance to CDK4/6 inhibitors in ER+ breast cancer.
Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 255 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
255 citing papers in PubMed, 1 synthesis or guideline pooled it, 407 citations in OpenAlex.
- Circulating tumour DNA and its clinical relevance in predicting progression-free survival and overall survival in patients with advanced breast cancer: a systematic review and meta-analysis.Breast cancer research and treatment · 2026Pooled it
- Abemaciclib rechallenge after progression on abemaciclib plus endocrine therapy in patients with hormone receptor-positive HER2-negative metastatic breast cancer: results from the phase II again study (WJOG14220B).Breast cancer research and treatment · 2026Trial
- Models of Early Resistance to CDK4/6 Inhibitors Unveil Potential Therapeutic Treatment Sequencing.International journal of molecular sciences · 2025Trial
- Landscape of Baseline and Acquired Genomic Alterations in Circulating Tumor DNA with Abemaciclib Alone or with Endocrine Therapy in Advanced Breast Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024Trial
- Exemestane plus everolimus and palbociclib in metastatic breast cancer: clinical response and genomic/transcriptomic determinants of resistance in a phase I/II trial.Nature communications · 2024Trial
- CCNE1 and PLK1 Mediate Resistance to Palbociclib in HR+/HER2- Metastatic Breast Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2023Trial
- Clinical Efficacy and Whole-Exome Sequencing of Liquid Biopsies in a Phase IB/II Study of Bazedoxifene and Palbociclib in Advanced Hormone Receptor-Positive Breast Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2022Trial
- Trial
- Results of the phase IIa RADICAL trial of the FGFR inhibitor AZD4547 in endocrine resistant breast cancer.Nature communications · 2022Trial
- Correlative Biomarker Analysis of Intrinsic Subtypes and Efficacy Across the MONALEESA Phase III Studies.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2021Trial
- Circulating tumor cells and palbociclib treatment in patients with ER-positive, HER2-negative advanced breast cancer: results from a translational sub-study of the TREnd trial.Breast cancer research : BCR · 2021Trial
- Avutometinib, Abemaciclib, and Fulvestrant in Patients with HR+/HER2- Metastatic Breast Cancer Previously Treated with CDK4/6 Inhibitor: A Single-Arm Phase I Trial.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026Article
- CDK4/6 Inhibitors in Breast Cancer Therapy: Mechanisms, Resistance, and Emerging Opportunities.Targeted oncology · 2026Review
- Article
- miR-640 Enhances Abemaciclib Sensitivity by Suppressing CDK Inhibitor Resistance-Associated Genes in Breast Cancer Cells.Journal of cellular and molecular medicine · 2026Article
- Review
- ESR1 mutations and CDK4/6 inhibitor choice shape clonal selection and adaptive cell states during acquired resistance.Genome medicine · 2026Article
- Post-CDK4/6 Inhibitor Therapeutic Approaches in Hormone Receptor-Positive, HER2-Negative Metastatic Breast Cancer: Current Evidence and Emerging Strategies-A Narrative Review.Diagnostics (Basel, Switzerland) · 2026Review
- Rationale and Trial Design of DAWNA-FES Trial: Single-Arm Phase II Study of Endocrine Therapy With Dalpiciclib After Progression on CDK4/6 Inhibition Based on [Cancer innovation · 2026Article
- Brain FGF2 and NCAM1 contribute to FGFR1-dependent progression of estrogen receptor-positive breast cancer brain metastases.Nature communications · 2026Article
195 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
31 authors at 9 institutions in 1 country.
Funding
Abstract
Using an ORF kinome screen in MCF-7 cells treated with the CDK4/6 inhibitor ribociclib plus fulvestrant, we identified FGFR1 as a mechanism of drug resistance. FGFR1-amplified/ER+ breast cancer cells and MCF-7 cells transduced with FGFR1 were resistant to fulvestrant ± ribociclib or palbociclib. This resistance was abrogated by treatment with the FGFR tyrosine kinase inhibitor (TKI) lucitanib. Addition of the FGFR TKI erdafitinib to palbociclib/fulvestrant induced complete responses of FGFR1-amplified/ER+ patient-derived-xenografts. Next generation sequencing of circulating tumor DNA (ctDNA) in 34 patients after progression on CDK4/6 inhibitors identified FGFR1/2 amplification or activating mutations in 14/34 (41%) post-progression specimens. Finally, ctDNA from patients enrolled in MONALEESA-2, the registration trial of ribociclib, showed that patients with FGFR1 amplification exhibited a shorter progression-free survival compared to patients with wild type FGFR1. Thus, we propose breast cancers with FGFR pathway alterations should be considered for trials using combinations of ER, CDK4/6 and FGFR antagonists.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.