Evidence map›Paper›PMID 30509246›Full record

ArticleBMC cancer2018

Influence of afatinib dose on outcomes of advanced EGFR-mutant NSCLC patients with brain metastases.

Wan-Ling Tan, Quan Sing Ng, Cindy Lim, Eng Huat Tan, Chee Keong Toh, Mei-Kim Ang, Ravindran Kanesvaran, Amit Jain, Daniel S W Tan, Darren Wan-Teck Lim

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in BMC cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

16 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Systemic Therapy for Lung Cancer Brain Metastases.Current treatment options in oncology · 2021
    Review
  9. Article
  10. Article
  11. Afatinib as first-line treatment in patients withTherapeutic advances in medical oncology · 2021
    Article
  12. Review
  13. Article
  14. Observational
  15. Article
  16. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Wan-Ling TanDivision of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.
Quan Sing NgDivision of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.
Cindy LimClinical Trials & Epidemiological Sciences, National Cancer Centre Singapore, Singapore, Singapore.
Eng Huat TanDivision of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.
Chee Keong TohDivision of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.
Mei-Kim AngDivision of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.
Ravindran KanesvaranDivision of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.
Amit JainDivision of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.
Daniel S W TanDivision of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.
Darren Wan-Teck LimDivision of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore. darren.lim.w.t@singhealth.com.sg.ORCID http://orcid.org/0000-0002-4655-0206
National Cancer Centre Singapore · SGAgency for Science, Technology and Research · SGSingHealth · SG

Funding

National Medical Research Council CSA/0025/2017National Medical Research Council (Singapore) (NMRC) NMRC/TCR/007-NCC/2013
6 · The paper itself

Abstract

backgroundAfatinib is an oral irreversible epidermal growth factor receptor (EGFR) tyrosine-kinase inhibitor (TKI) indicated in first-line treatment of advanced EGFR-mutant (EGFRm+) non-small cell lung cancer (NSCLC). Dose dependent side effects can limit drug exposure, which may impact on extracranial and central nervous system (CNS) disease control.

methodsWe performed a retrospective study of 125 patients diagnosed with advanced EGFRm+ NSCLC treated with first-line afatinib at a tertiary Asian cancer center, exploring clinicopathological factors that may influence survival outcomes. Median progression free survival (PFS) was estimated using the Kaplan-Meier method. Comparison of PFS between subgroups of patients was done using log-rank tests and Cox proportional hazards models.

resultsOut of 125 patients, 62 (49.6%) started on 40 mg once daily (OD) afatinib, 61 (48.8%) on 30 mg OD and 1 (0.8%) on 20 mg OD. After median follow-up of 13.8 months from afatinib initiation, the observed response rate was 70.4% and median PFS 11.9 months (95% CI 10.3-19.3). 42 (33.6%) patients had baseline brain metastases (BM) and PFS of those who started on 40 mg OD (n = 17) vs. 30 mg OD (n = 25) was 13.3 months vs. 5.3 months (HR 0.39, 95% CI 0.15-0.99). BM+ patients who started on 40 mg had similar PFS to patients with no BM (13.3 months vs. 15.0 months; HR 0.79, 95% CI 0.34-1.80).

conclusionIn patients with advanced EGFRm+ NSCLC with BM+, initiating patients on afatinib 40 mg OD was associated with improved PFS compared to 30 mg OD, underscoring the potential importance of dose intensity in control of CNS disease.

Indexed as

AdultAfatinibAgedAged, 80 and overAntineoplastic AgentsBrain NeoplasmsCarcinoma, Non-Small-Cell LungDose-Response Relationship, DrugErbB ReceptorsFemaleHumansLung NeoplasmsMaleMiddle AgedMutationRetrospective StudiesAfatinibAntineoplastic AgentsEGFR protein, humanErbB ReceptorsAfatinibBrain metastasesDoseEGFR mutation NSCLCMetastatic

Identifiers

PMID30509246
PMCPMC6276185
OpenAlexW2902180784

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.