SynthesisInternational journal of molecular sciences2020
Progression-Free Survival and Overall Survival of CDK 4/6 Inhibitors Plus Endocrine Therapy in Metastatic Breast Cancer: A Systematic Review and Meta-Analysis.
Synthesis in International journal of molecular sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 7 of them syntheses that pooled it.
What it found
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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.
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Who cites it
77 citing papers in PubMed, 7 syntheses or guidelines pooled it, 103 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
- Treatment consequence and adverse events of cyclin-dependent kinase 4/6 inhibitors on patients with hormone receptor-positive, HER2-negative metastatic breast cancer: a systematic review and meta-analysis.Annals of medicine · 2025Pooled it
- The efficacy and safety of CDK4/6 inhibitors combined with endocrine therapy versus endocrine therapy alone in the adjuvant treatment of patients with high-risk invasive HR+/HER2-early breast cancer: A comprehensive updated meta-analysis of randomized clinical trials.Breast (Edinburgh, Scotland) · 2024Pooled it
- CDK4/6 inhibitors plus endocrine therapy vs. placebo plus endocrine therapy for HR+/HER2- advanced breast cancer: a phase III RCTs based meta-analysis.BMC cancer · 2024Pooled it
- Efficacy of CDK4/6 inhibitors combined with endocrine therapy in HR+/HER2- breast cancer: an umbrella review.Journal of cancer research and clinical oncology · 2024Pooled it
- CDK4/6 inhibitors versus PI3K/AKT/mTOR inhibitors in women with hormone receptor-positive, HER2-negative metastatic breast cancer: An updated systematic review and network meta-analysis of 28 randomized controlled trials.Frontiers in oncology · 2022Pooled it
- Endocrine Treatment and Targeted Therapy for Hormone Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative Metastatic Breast Cancer: ASCO Guideline Update.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2021Pooled it
- Abemaciclib plus non-steroidal aromatase inhibitor or fulvestrant in women with HR+/HER2- advanced breast cancer: Final results of the randomized phase III MONARCH plus trial.Chinese medical journal · 2025Trial
- A real-world study of the first use of palbociclib for the treatment of advanced breast cancer within the UK National Health Service as part of the novel Ibrance® Patient Program.British journal of cancer · 2023Trial
- Breast Cancer: Epidemiology, Molecular Classification, Diagnostics and Evolving Treatment Paradigms.Molecules (Basel, Switzerland) · 2026Review
- 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
- Real world experience with cyclin dependent kinase inhibitors in metastatic breast cancer in India.PloS one · 2026Article
- Assessing Thrombotic Risk in Patients with HR+/HER2- Breast Cancer Receiving CDK4/6 Inhibitors: Insights from Real-World Data from the Middle East.Breast cancer (Dove Medical Press) · 2026Article
- Improving CDK4/6 inhibitors adherence in breast cancer using the CONnected CUstomized Treatment Platform (CONCURxP) mobile health intervention: Study protocol for ECOG-ACRIN EAQ221CD.Contemporary clinical trials · 2026Article
- Clinical Efficacy and Security Analysis of CDK4/6 Inhibitors Combined with ET in Patients with HRCancer management and research · 2026Article
- Comparative efficacy of Palbociclib and Everolimus with aromatase inhibitors in second line treatment of HR and HER2 negative metastatic breast cancer.Discover oncology · 2025Article
- The Absorption, Distribution, Excretion, and In Vitro Hepatic Microsomal Metabolism of the Novel CDK Compound XMD12 in Sprague-Dawley Rats.Pharmaceutics · 2025Article
- Baseline neutrophil-lymphocyte ratio (NLR) predicts toxicity and survival in HR+/HER-2 breast cancer patients treated with CDK4/6 inhibitors.Breast (Edinburgh, Scotland) · 2025Article
- Prognostic value of FDG PET/CT in de novo stage IV breast cancer patients treated with cyclin-dependent kinase 4/6 inhibitors.Breast cancer research : BCR · 2025Article
- Designing a time-dependent therapeutic strategy using CDK4/6 inhibitors in an intracranial ATRT model.Neuro-oncology · 2025Article
17 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
15 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The introduction of CDK4/6 inhibitors in combination with endocrine therapy (ET) represents the most relevant advance in the management of hormone receptor (HR) positive, HER2-negative metastatic breast cancer over the last few years. This meta-analysis of randomized controlled trials (RCTs) is aimed to better characterize the efficacy of CDK4/6 inhibitors in some relevant subgroups and to test heterogeneity between different compounds with a particular focus on their ability to improve overall survival (OS). Pooled estimates of hazard ratios (HRs) were computed for progression-free survival (PFS), OS, and objective response rate (ORR) analysis in predefined subgroups to better understand treatment effect concerning specific patients' characteristics. To estimate the absolute benefit in terms of PFS, pooled survival curves were generated by pooling the data of all trials. A total of eight RCTs were included. Adding a CDK4/6 inhibitor to ET is beneficial in terms of PFS, irrespective of the presence or not of visceral metastases, the number of metastatic sites, and the length of the treatment-free interval (TFI). The addition of CDK4/6 inhibitors produces a significant OS improvement, both in aromatase inhibitor (AI)-sensitive (HR 0.75, 95% CI) and AI-resistant patients (HR 0.77, 95% CI [0.67-0.89]). Pooled data from each single drug show that palbociclib remains the only class member not showing a statistically significant HR for OS (HR 0.83, 95% CI [0.68-1.02]).
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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.