SynthesisEuropean journal of clinical pharmacology2016
Comparison of clinical outcomes of patients with non-small-cell lung cancer harbouring epidermal growth factor receptor exon 19 or exon 21 mutations after tyrosine kinase inhibitors treatment: a meta-analysis.
Synthesis in European journal of clinical pharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis 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.
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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
61 citing papers in PubMed, 1 synthesis or guideline pooled it, 85 citations in OpenAlex.
- Efficacy and Safety of Epidermal Growth Factor Receptor (EGFR) Inhibitors Plus Antiangiogenic Agents as First-Line Treatments for Patients With AdvancedFrontiers in oncology · 2020Pooled it
- Osimertinib plus chemotherapy versus osimertinib for patients with advanced NSCLC with concomitant EGFR and TP53 mutations: a prospective cohort study.Scientific reports · 2025Trial
- Lazertinib versus Gefitinib as First-Line Treatment for EGFR-mutated Locally Advanced or Metastatic NSCLC: LASER301 Korean Subset.Cancer research and treatment · 2024Trial
- Efficacy and Tolerability of Ramucirumab Plus Erlotinib in Taiwanese Patients with Untreated, Epidermal Growth Factor Receptor-Mutated, Stage IV Non-small Cell Lung Cancer in the RELAY Study.Targeted oncology · 2023Trial
- Trial
- RELAY Subgroup Analyses by EGFR Ex19del and Ex21L858R Mutations for Ramucirumab Plus Erlotinib in Metastatic Non-Small Cell Lung Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2021Trial
- A Phase II Trial of Osimertinib as the First-Line Treatment of Non-Small Cell Lung Cancer Harboring Activating EGFR Mutations in Circulating Tumor DNA: LiquidLung-O-Cohort 1.Cancer research and treatment · 2021Trial
- Ramucirumab or placebo plus erlotinib in EGFR-mutated, metastatic non-small-cell lung cancer: East Asian subset of RELAY.Cancer science · 2020Trial
- Systematic review of spectral computed tomography quantitative parameters for predictingQuantitative imaging in medicine and surgery · 2026Review
- Precision medicine in the first-line treatment ofTranslational lung cancer research · 2026Article
- Evaluating Tumor Burden as a Predictive Biomarker for Epidermal Growth Factor Receptor Targeted Kinase Inhibitor Therapy in Advanced Non-Small Cell Lung Cancer.JCO precision oncology · 2026Article
- The Profile of Gut Microbiota in Carcinogenesis Driven by Mutant EGFR in Non-Small Cell Lung Cancer.Cancer research and treatment · 2026Article
- Cost-effectiveness of first-line aumolertinib versus osimertinib for advanced epidermal growth factor receptor-mutated non-small cell lung cancer in China.Frontiers in public health · 2026Article
- Bridging via extracorporeal cardiopulmonary resuscitation for hemodynamic collapse in a patient with metastatic lung cancer: a case report.JA clinical reports · 2025Article
- RELAY+: Final Overall Survival With Ramucirumab Plus Gefitinib in Patients With UntreatedJTO clinical and research reports · 2025Article
- Prediction of EGFR mutation status and mutation sites in lung cancer based on radiomics and deep learning.Journal of thoracic disease · 2025Article
- Plasma-Based Genomic Features Influencing Outcomes of T790M-Positive Non-Small Cell Lung Cancer Receiving Osimertinib.Cancer medicine · 2025Article
- Predicting the prognosis of patients with lung adenocarcinoma treated with third-generation EGFR-TKI alone using nomograms based on CT radiomic and clinicopathological factors.Translational lung cancer research · 2025Article
- Actionable mutations and targeted therapy in non-small cell lung cancer among Latin American and Hispanic patients: a systematic literature review of prognosis and meta-analysis.Translational lung cancer research · 2025Article
- Association of the expression of 5-FU biomarkers with aging and prognosis in elderly patients with lung cancer treated with S-1 adjuvant chemotherapy: Follow-up results of the Setouchi Lung Cancer Group Study 1201.Molecular and clinical oncology · 2025Article
1 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
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeExon 19 deletion and exon 21 L858R mutation were the most common epidermal growth factor receptor (EGFR) mutations. We examined the clinical impact of these two mutations in patients with non-small-cell lung cancer (NSCLC) after EGFR tyrosine kinase inhibitor (TKI) treatment.
methodsThe outcomes of interest were progression-free survival (PFS), overall survival (OS) and objective response rates (ORR), network meta-analysis and direct meta-analysis were conducted to calculate the efficacy of EGFR-TKIs between these two mutations. We also investigated the association between EGFR mutation types and clinical characteristics.
resultsA total of 4835 patients from 26 trials were assessed. EGFR-TKIs, compared with chemotherapy, significantly prolonged PFS and OS in both exon 19 deletion and exon 21 L858R mutation based on 8 trials. Network meta-analysis revealed that treatment with EGFR-TKIs had greater benefit in exon 19 deletion than in exon 21 L858R mutation. Furthermore, direct meta-analysis from 12 studies showed the similar result; patients with exon 19 deletion had a significantly longer PFS compared with exon 21 L858R mutation (HR, 0.69; 95 % CI, 0.57–0.82; P < 0.001). There were also greater benefit on OS (HR, 0.61; 95 % CI, 0.43–0.86; P = 0.005) and higher ORR (OR, 2.14; 95 % CI, 1.63–2.81; P < 0.001). Additionally, we found that a significant association between the type of mutation and age (P < 0.001) or smoking status (P = 0.022), but no other significant differences were detected in sex, histologic subtype and performance status between these two mutations.
conclusionsPatients with NSCLC and EGFR exon 19 deletion had a longer PFS, OS and higher response rates after EGFR-TKI therapy compared with exon 21 L858R mutation.
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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.