Evidence map›Paper›PMID 40551183›Full record

SynthesisEuropean journal of medical research2025

Efficacy of cyclin-dependent kinases 4 and 6 inhibitors in the treatment of HR +/HER2 - advanced breast cancer: a meta-analysis.

Isah Adamu Danbala, Xu Wang, Yuting Su, Haowen Tang, Wanying Sheng, Zakari Shaibu, Iliyasu Isah, Xiao Yuan

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in European journal of medical research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Isah Adamu DanbalaDepartment of Radiation Oncology, Institute of Oncology, Affiliated Hospital, Jiangsu University, 438 Jiafang Road, Jiangkou District, Zhenjiang, 212001, Jiangsu Province, China.ORCID http://orcid.org/0000-0002-0256-1894
Xu WangDepartment of Radiation Oncology, Institute of Oncology, Affiliated Hospital, Jiangsu University, 438 Jiafang Road, Jiangkou District, Zhenjiang, 212001, Jiangsu Province, China.
Yuting SuDepartment of Radiation Oncology, Institute of Oncology, Affiliated Hospital, Jiangsu University, 438 Jiafang Road, Jiangkou District, Zhenjiang, 212001, Jiangsu Province, China.
Haowen TangDepartment of Thoracic Oncology, Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, China.
Wanying ShengDepartment of Thoracic Oncology, Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, China.
Zakari ShaibuSchool of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.ORCID http://orcid.org/0000-0003-2318-5936
Iliyasu IsahDepartment of Radiation and Clinical Oncology, Aminu Kano Teaching Hospital, No 1 Zaria Road, Kano, 700101, Kano State, Nigeria.
Xiao YuanDepartment of Cancer Institute, Jiangsu University, 438 Jiafang Road, Jiangkou District, Zhenjiang, 212001, Jiangsu Province, China. yuanxiao07seven@163.com.

Funding

Science and Technology Planning Social Development Project of Zhenjiang City SH2024024
6 · The paper itself

Abstract

aimThis study investigates the efficacy and safety of cyclin-dependent kinase 4/6 inhibitors (CDK4/6i) combined with endocrine therapy (ET) in treating hormone receptor-positive (HR +), human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer.

methodsA systematic review of randomized clinical trials (RCTs) from 2015 to 2024 was conducted using databases such as PubMed, Google Scholar, Embase, and Cochrane. Data were collected on treatment outcomes, including complete response (CR), partial response (PR), stable disease (SD), progressive disease (PD), overall response rate (ORR), and treatment-related adverse events (TRAEs). Analysis was performed using Review Manager 5.4.1, following PRISMA guidelines, with registration in the PROSPERO database (ID: CRD42023471168).

results1223 studies screened, 13 met inclusion criteria. CDK4/6i + ET significantly reduced PD rates and increased SD compared to ET + chemotherapy. No significant differences were observed in CR, PR, or SD between the groups. CDK4/6i + ET demonstrated a favorable safety profile with fewer high-grade TRAEs but had a higher incidence of grade 3-4 adverse events than ET alone.

conclusionCDK4/6i combined with ET improves disease control by decreasing progression and increasing stability, though it shows a lower PR rate than ET + chemotherapy in HR + /HER2 - advanced breast cancer. These findings underscore the need to balance efficacy with tolerability when selecting treatment strategies.

Indexed as

Antineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsCyclin-Dependent Kinase 4Cyclin-Dependent Kinase 6Protein Kinase InhibitorsErb-b2 Receptor Tyrosine KinasesFemaleHumansRandomized Controlled Trials as TopicReceptors, EstrogenReceptors, ProgesteroneTreatment OutcomeCDK4 protein, humanCDK6 protein, humanCyclin-Dependent Kinase 4Cyclin-Dependent Kinase 6ERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesProtein Kinase InhibitorsReceptors, EstrogenReceptors, ProgesteroneBreast neoplasmCyclin-dependent kinases 4 and 6 inhibitorsHormoneMeta-analysisTherapy

Identifiers

PMID40551183
PMCPMC12186359

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

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.