A meta-analysis and systematic review of different cyclin-dependent kinase 4/6 inhibitors in breast cancer

ObjectiveThe objective of this study was to assess the effectiveness and safety of CDK4/6 inhibitors in the treatment of hormone receptor-positive (HR+) breast cancer by using meta-analysis.MethodsTo gather comprehensive and reliable data for our analysis, we systematically searched multiple databas...

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Main Authors: Jialin Zhang, Xinyu Xu, Yeyue Zhou, Jingyang Su, Jue Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-03-01
Series:Frontiers in Oncology
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Online Access:https://www.frontiersin.org/articles/10.3389/fonc.2025.1472407/full
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author Jialin Zhang
Xinyu Xu
Yeyue Zhou
Jingyang Su
Jue Wang
author_facet Jialin Zhang
Xinyu Xu
Yeyue Zhou
Jingyang Su
Jue Wang
author_sort Jialin Zhang
collection DOAJ
description ObjectiveThe objective of this study was to assess the effectiveness and safety of CDK4/6 inhibitors in the treatment of hormone receptor-positive (HR+) breast cancer by using meta-analysis.MethodsTo gather comprehensive and reliable data for our analysis, we systematically searched multiple databases for relevant studies. We utilized RevMan5.3 software to perform the meta-analysis.ResultsFollowing a rigorous screening and evaluation process, we ultimately included a total of 13 studies in our analysis. Our findings showed that compared to endocrine therapy alone, the combination of CDK4/6 inhibitors with endocrine therapy significantly increased both PFS [HR 0.54 (95%CI: 0.50, 0.58), P<0.00001], OS [HR 0.77 (95%CI: 0.50, 0.58), P<0.00001] and ORR [RR 1.39 (95% CI: 1.21, 1.60), P<0.00001). However, it was also found that CDK4/6 inhibitors caused adverse drug reactions related to the blood system and digestive system (P<0.0001).ConclusionsOur meta-analysis demonstrates that the addition of CDK4/6 inhibitors to endocrine therapy can result in improved PFS and OS for HR+ breast cancer patients. Meanwhile, we recommend close monitoring and management of these potential side effects when utilizing these inhibitors in breast cancer treatment.Systematic Review Registrationhttps://www.crd.york.ac.uk/PROSPERO, identifier CRD42023490499.
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publishDate 2025-03-01
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series Frontiers in Oncology
spelling doaj-art-6b582a1df25b4e2d8f392d63c2c5ce8e2025-08-20T02:46:28ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2025-03-011510.3389/fonc.2025.14724071472407A meta-analysis and systematic review of different cyclin-dependent kinase 4/6 inhibitors in breast cancerJialin Zhang0Xinyu Xu1Yeyue Zhou2Jingyang Su3Jue Wang4Department of Oncology, Hangzhou TCM Hospital of Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, ChinaDepartment of Oncology, Hangzhou TCM Hospital of Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, ChinaDepartment of Oncology, Hangzhou TCM Hospital of Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, ChinaDepartment of General internal medicine, Tongde Hospital Affiliated to Zhejiang Chinese Medical University (Tongde Hospital of Zhejiang Province), Hangzhou, ChinaDepartment of Oncology, Hangzhou TCM Hospital of Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, ChinaObjectiveThe objective of this study was to assess the effectiveness and safety of CDK4/6 inhibitors in the treatment of hormone receptor-positive (HR+) breast cancer by using meta-analysis.MethodsTo gather comprehensive and reliable data for our analysis, we systematically searched multiple databases for relevant studies. We utilized RevMan5.3 software to perform the meta-analysis.ResultsFollowing a rigorous screening and evaluation process, we ultimately included a total of 13 studies in our analysis. Our findings showed that compared to endocrine therapy alone, the combination of CDK4/6 inhibitors with endocrine therapy significantly increased both PFS [HR 0.54 (95%CI: 0.50, 0.58), P<0.00001], OS [HR 0.77 (95%CI: 0.50, 0.58), P<0.00001] and ORR [RR 1.39 (95% CI: 1.21, 1.60), P<0.00001). However, it was also found that CDK4/6 inhibitors caused adverse drug reactions related to the blood system and digestive system (P<0.0001).ConclusionsOur meta-analysis demonstrates that the addition of CDK4/6 inhibitors to endocrine therapy can result in improved PFS and OS for HR+ breast cancer patients. Meanwhile, we recommend close monitoring and management of these potential side effects when utilizing these inhibitors in breast cancer treatment.Systematic Review Registrationhttps://www.crd.york.ac.uk/PROSPERO, identifier CRD42023490499.https://www.frontiersin.org/articles/10.3389/fonc.2025.1472407/fullbreast cancerCDK4/6 inhibitorsAbemaciclibPalbociclibRibociclibDalpiciclib
spellingShingle Jialin Zhang
Xinyu Xu
Yeyue Zhou
Jingyang Su
Jue Wang
A meta-analysis and systematic review of different cyclin-dependent kinase 4/6 inhibitors in breast cancer
Frontiers in Oncology
breast cancer
CDK4/6 inhibitors
Abemaciclib
Palbociclib
Ribociclib
Dalpiciclib
title A meta-analysis and systematic review of different cyclin-dependent kinase 4/6 inhibitors in breast cancer
title_full A meta-analysis and systematic review of different cyclin-dependent kinase 4/6 inhibitors in breast cancer
title_fullStr A meta-analysis and systematic review of different cyclin-dependent kinase 4/6 inhibitors in breast cancer
title_full_unstemmed A meta-analysis and systematic review of different cyclin-dependent kinase 4/6 inhibitors in breast cancer
title_short A meta-analysis and systematic review of different cyclin-dependent kinase 4/6 inhibitors in breast cancer
title_sort meta analysis and systematic review of different cyclin dependent kinase 4 6 inhibitors in breast cancer
topic breast cancer
CDK4/6 inhibitors
Abemaciclib
Palbociclib
Ribociclib
Dalpiciclib
url https://www.frontiersin.org/articles/10.3389/fonc.2025.1472407/full
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