Evidence map›Paper›PMID 26461059›Full record

SynthesisBritish journal of cancer2015

Overall survival benefits of first-line EGFR tyrosine kinase inhibitors in EGFR-mutated non-small-cell lung cancers: a systematic review and meta-analysis.

Feng-Che Kuan, Liang-Tseng Kuo, Min-Chi Chen, Cheng-Ta Yang, Chung-Sheng Shi, David Teng, Kuan-Der Lee

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in British journal of cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 3 pooled it
–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

60 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  16. The efficacy of neoadjuvantFrontiers in oncology · 2023
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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

7 authors.

Feng-Che KuanDepartment of Hematology and Oncology, Chang-Gung Memorial Hospital, Chia-Yi 61363, Taiwan.
Liang-Tseng KuoDepartment of Orthopaedic Surgery, Division of Sports Medicine, Chang-Gung Memorial Hospital, Chia-Yi, Taiwan.
Min-Chi ChenDepartment of Public Health, Biostatistics Consulting Center, College of Medicine, Chang-Gung University, Tao-Yuan, Taiwan.
Cheng-Ta YangDepartment of Thoracic Medicine, Chang-Gung Memorial Hospital, Tao-Yuan 33305, Taiwan.
Chung-Sheng ShiGraduate Institute of Clinical Medical Sciences, College of Medicine, Chang-Gung University, Tao-Yuan, Taiwan.
David TengDepartment of Bioengineering, University of California, Los Angeles, California 94720, USA.
Kuan-Der LeeDepartment of Hematology and Oncology, Chang-Gung Memorial Hospital, Chia-Yi 61363, Taiwan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAccumulating data shows that exon 19 deletions and L858R, both activating epidermal growth factor receptor mutations in non-small-cell lung cancers (NSCLCs), are just two different entities in terms of prognosis and treatment response to tyrosine kinase inhibitors (TKIs).

methodsA systematic review and meta-analysis of randomized controlled trials comparing TKIs with conventional chemotherapy was performed. Eight trials of 1498 patients and five trials of 1279 patients with either exon 19 deletions or L858R were included in the meta-analysis.

resultsTKI treatment demonstrated progression-free survival benefit in patients with exon 19 deletions (hazard ratio (HR): 0.27, 95% confidence interval (CI): 0.21-0.35) and L858R (HR: 0.45, 95% CI: 0.35-0.58). Patients with exon 19 deletions had significant overall survival (OS) benefit under TKI treatment (HR: 0.72, 95% CI: 0.60-0.88). Subgroup analyses showed that irreversible TKIs, but not reversible TKIs, had statistically significant OS benefit in these patients (irreversible TKIs, HR: 0.59, 95% CI: 0.47-0.73; reversible TKIs, HR: 0.84, 95% CI: 0.69-1.02). Patients with L858R demonstrated no OS benefit under first-line TKI use (HR: 1.15, 95% CI: 0.95-1.39).

conclusionsIn patients with advanced NSCLC harbouring exon 19 deletions, TKIs are associated with better OS compared with conventional chemotherapy. Future clinical trials should take exon 19 deletions and L858R as distinct disease entities and evaluate the treatment efficacy separately.

Indexed as

MutationAntineoplastic AgentsCarcinoma, Non-Small-Cell LungErbB ReceptorsHumansLung NeoplasmsProtein Kinase InhibitorsRandomized Controlled Trials as TopicSequence DeletionSurvival AnalysisTreatment OutcomeAntineoplastic AgentsEGFR protein, humanErbB ReceptorsProtein Kinase Inhibitors

Identifiers

PMID26461059
PMCPMC4815883

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Registered trials

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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.