Evidence map›Paper›PMID 29385152›Full record

ArticlePloS one2018

Intratumoral heterogeneity characterized by pretreatment PET in non-small cell lung cancer patients predicts progression-free survival on EGFR tyrosine kinase inhibitor.

Sehhoon Park, Seunggyun Ha, Se-Hoon Lee, Jin Chul Paeng, Bhumsuk Keam, Tae Min Kim, Dong-Wan Kim, Dae Seog Heo

Abstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  6. Heterogeneity of Glycolytic Phenotype Determined byDiagnostics (Basel, Switzerland) · 2023
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  12. Advantages and Applications of Total-Body PET Scanning.Diagnostics (Basel, Switzerland) · 2022
    Review
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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

8 authors.

Sehhoon ParkDepartment of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
Seunggyun HaDepartment of Nuclear Medicine, Seoul National University Hospital, Seoul National University Hospital, Seoul, Republic of Korea.
Se-Hoon LeeDepartment of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea.ORCID 0000-0002-9219-3350
Jin Chul PaengDepartment of Nuclear Medicine, Seoul National University Hospital, Seoul National University Hospital, Seoul, Republic of Korea.
Bhumsuk KeamDepartment of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
Tae Min KimDepartment of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
Dong-Wan KimDepartment of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
Dae Seog HeoDepartment of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intratumoral heterogeneity has been suggested to be an important resistance mechanism leading to treatment failure. We hypothesized that radiologic images could be an alternative method for identification of tumor heterogeneity. We tested heterogeneity textural parameters on pretreatment FDG-PET/CT in order to assess the predictive value of target therapy. Recurred or metastatic non-small cell lung cancer (NSCLC) subjects with an activating EGFR mutation treated with either gefitinib or erlotinib were reviewed. An exploratory data set (n = 161) and a validation data set (n = 21) were evaluated, and eight parameters were selected for survival analysis. The optimal cutoff value was determined by the recursive partitioning method, and the predictive value was calculated using Harrell's C-index. Univariate analysis revealed that all eight parameters showed an increased hazard ratio (HR) for progression-free survival (PFS). The highest HR was 6.41 (P<0.01) with co-occurrence (Co) entropy. Increased risk remained present after adjusting for initial stage, performance status (PS), and metabolic volume (MV) (aHR: 4.86, P<0.01). Textural parameters were found to have an incremental predictive value of early EGFR tyrosine kinase inhibitor (TKI) failure compared to that of the base model of the stage and PS (C-index 0.596 vs. 0.662, P = 0.02, by Co entropy). Heterogeneity textural parameters acquired from pretreatment FDG-PET/CT are highly predictive factors for PFS of EGFR TKI in EGFR-mutated NSCLC patients. These parameters are easily applicable to the identification of a subpopulation at increased risk of early EGFR TKI failure. Correlation to genomic alteration should be determined in future studies.

Indexed as

Antineoplastic AgentsCarcinoma, Non-Small-Cell LungDisease-Free SurvivalErbB ReceptorsFemaleHumansLung NeoplasmsMaleMiddle AgedMutationPositron-Emission TomographyProtein Kinase InhibitorsTomography, X-Ray ComputedAntineoplastic AgentsErbB ReceptorsProtein Kinase Inhibitors

Identifiers

PMID29385152
PMCPMC5791940

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LicenceCC BY
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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.