ReviewNPJ breast cancer2023
Emerging systemic therapy options beyond CDK4/6 inhibitors for hormone receptor-positive HER2-negative advanced breast cancer.
Review in NPJ breast cancer, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
34 citing papers in PubMed, 3 syntheses or guidelines pooled it, 42 citations in OpenAlex.
- Efficacy and safety of abemaciclib plus endocrine therapy versus endocrine therapy alone in HR + and HER2-negative breast cancer; a systematic review and meta-analysis.Breast cancer research and treatment · 2025Pooled it
- Comparative efficacy of first- versus second-line CDK4/6 inhibition in hormone receptor-positive, HER2-negative metastatic breast cancer.Breast cancer research : BCR · 2025Pooled it
- Systematic Review and Network Meta-Analysis on Treating Hormone Receptor-Positive Metastatic Breast Cancer After CDK4/6 Inhibitors.Current oncology (Toronto, Ont.) · 2025Pooled it
- CDK4/6 Inhibitor-Induced Senescence in Cancer: Mechanisms and Therapeutic Implications.Cancers · 2026Review
- Clinical benefit of palbociclib retreatment after abemaciclib exposure in hormone receptor positive, HER2 negative metastatic breast cancer.Scientific reports · 2026Article
- A prostate-specific membrane antigen targeted small molecule-drug conjugate for efficient prostate cancer therapy at a low dosage.International journal of pharmaceutics: X · 2026Article
- Leveraging the non-contrast CT component of PET/CT: an AI-driven delta-radiomics approach to monitor treatment response in metastatic breast cancer.BMC medical imaging · 2026Article
- Mechanisms of Resistance and Synergy: The Role of Tumor Microenvironment in HER2-Low Breast Cancer Therapy.Pharmaceuticals (Basel, Switzerland) · 2026Review
- Endocrine Therapy versus Chemotherapy After CDK4/6 Inhibitor Progression in HR+/HER2- Metastatic Breast Cancer: A Multicenter Real-World Study from Turkey.Breast cancer (Dove Medical Press) · 2026Article
- Precision Endocrine-Based Combinations After CDK4/6 Inhibitor Progression in HR-Positive Metastatic Breast Cancer.Drug design, development and therapy · 2026Review
- WEE1 inhibition delays resistance to CDK4/6 inhibitor and antiestrogen treatment in ER+ MCF7 cells.NPJ systems biology and applications · 2025Article
- Antibody-drug conjugates in cancer therapy: current landscape, challenges, and future directions.Molecular cancer · 2025Review
- A Decade After Approval of the First CDK4/6 Inhibitor: A Look Back at Palbociclib's Journey from Discovery to Approval and What's Next in CDK Inhibition in Breast Cancer.Targeted oncology · 2025Review
- Cancer‑associated fibroblasts in human malignancies, with a particular emphasis on sarcomas (Review).International journal of oncology · 2025Review
- Glutaminase as a metabolic target of choice to counter acquired resistance to Palbociclib by colorectal cancer cells.Oncogene · 2025Article
- A Canadian real-world, multi-center, prospective, observational study assessing the treatment duration, the treatment sequence, and the overall survival for patients treated with endocrine therapy ± targeted therapy in HR + HER2-negative advanced breast cancer.Breast cancer research and treatment · 2025Observational
- Targeting cyclin-dependent kinase 2 (CDK2) interactions with cyclins and Speedy 1 (Spy1) for cancer and male contraception.Future medicinal chemistry · 2025Review
- Androgen receptor expression distribution characteristics in young female breast cancer patients in China: a study of clinicopathological features.Translational cancer research · 2025Article
- TFAP2C-DDR1 axis regulates resistance to CDK4/6 inhibitor in breast cancer.Cancer letters · 2025Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
Endocrine therapy (ET) with cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) is currently the standard first-line treatment for most patients with hormone receptor (HR) positive, human epidermal growth factor receptor (HER2) negative advanced breast cancer. However, resistance to ET and CDK4/6i inevitably ensues. The optimal post-progression treatment regimens and their sequencing continue to evolve in the rapidly changing treatment landscape. In this review, we summarize the mechanisms of resistance to ET and CDK4/6i, which can be broadly classified as alterations affecting cell cycle mediators and activation of alternative signaling pathways. Recent clinical trials have been directed at the targets and pathways implicated, including estrogen and androgen receptors, PI3K/AKT/mTOR and MAPK pathways, tyrosine kinase receptors such as FGFR and HER2, homologous recombination repair pathway, other components of the cell cycle and cell death. We describe the findings from these clinical trials using small molecule inhibitors, antibody-drug conjugates and immunotherapy, providing insights into how these novel strategies may circumvent treatment resistance, and discuss how some have not translated into clinical benefit. The challenges posed by tumor heterogeneity, adaptive rewiring of signaling pathways and dose-limiting toxicities underscore the need to elucidate the latest tumor biology in each patient, and develop treatments with improved therapeutic index in the era of precision medicine.
Identifiers
What OpenQuestion holds
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.