Evidence map›Paper›PMID 25795635›Full record

SynthesisThe oncologist2015

Gefitinib and erlotinib in metastatic non-small cell lung cancer: a meta-analysis of toxicity and efficacy of randomized clinical trials.

Mauricio Burotto, Elisabet E Manasanch, Julia Wilkerson, Tito Fojo

Open access · bronzeAbstract readMeta-Analysis
In one paragraph

Synthesis in The oncologist, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 4 pooled it
15.8field-weighted citation impact, top 1% of its field
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

73 citing papers in PubMed, 4 syntheses or guidelines pooled it, 153 citations in OpenAlex.

  1. Pooled it
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  6. Article
  7. Kinase-Targeted Therapies for Glioblastoma.International journal of molecular sciences · 2025
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  15. Retrospective Evaluation of Drug-Drug Interactions With Erlotinib and Gefitinib Use in the Military Health System.Federal practitioner : for the health care professionals of the VA, DoD, and PHS · 2023
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13 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Mauricio BurottoMedical Oncology and Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA; Department of Lymphoma and Myeloma, University of Texas MD Anderson Cancer Center, Houston, Texas, USA mauricio.burottopichun@nih.gov mauricioburotto@yahoo.com.
Elisabet E ManasanchMedical Oncology and Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA; Department of Lymphoma and Myeloma, University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Julia WilkersonMedical Oncology and Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA; Department of Lymphoma and Myeloma, University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Tito FojoMedical Oncology and Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA; Department of Lymphoma and Myeloma, University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
National Cancer Institute · USCenter for Cancer Research · USThe University of Texas MD Anderson Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTyrosine kinase inhibitors (TKIs) targeting the epidermal growth factor receptor (EGFR) have been evaluated in patients with metastatic and advanced non-small cell lung cancer (NSCLC). The U.S. Food and Drug Administration initially granted accelerated approval to gefitinib but subsequently rescinded the authorization. Erlotinib and afatinib are similar compounds approved for the treatment of metastatic NSCLC. The objective of this study was to compare the efficacy and toxicity of erlotinib, gefitinib, and afatinib in NSCLC.

methodsWe tabulated efficacy variables including overall response rate (ORR), progression-free survival (PFS), and overall survival (OS) and quantitated toxicities and rates of dose reductions and discontinuation. Summary odds ratios were calculated using random and fixed-effects models. An odds ratio was the summary measure used for pooling of studies.

resultsWe examined 28 studies including three randomized trials with afatinib. Clinical toxicities, including pruritus, rash, anorexia, diarrhea, nausea, fatigue, mucositis, paronychia, and anemia, were similar between erlotinib and gefitinib, although some statistical differences were observed. Afatinib treatment resulted in more diarrhea, rash, and paronychia compared with erlotinib and gefitinib. Regarding efficacy, similar outcomes were recorded for ORR, PFS, or OS in the total population and in specific subgroups of patients between erlotinib and gefitinib. All three TKIs demonstrated higher ORRs in first line in tumors harboring EGFR mutations.

conclusionGefitinib has similar activity and toxicity compared with erlotinib and offers a valuable alternative to patients with NSCLC. Afatinib has similar efficacy compared with erlotinib and gefitinib in first-line treatment of tumors harboring EGFR mutations but may be associated with more toxicity, although further studies are needed. Gefitinib deserves consideration for U.S. marketing as a primary treatment for EGFR-mutant NSCLC.

Indexed as

AfatinibAntineoplastic Combined Chemotherapy ProtocolsCarcinoma, Non-Small-Cell LungDisease-Free SurvivalErlotinib HydrochlorideGefitinibHumansLung NeoplasmsPublication BiasQuinazolinesRandomized Controlled Trials as TopicTreatment OutcomeAfatinibErlotinib HydrochlorideGefitinibQuinazolinesAfatinibErlotinibGefitinibLung cancerTyrosine kinase inhibitors

Identifiers

PMID25795635
PMCPMC4391756
OpenAlexW2110900526

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.