Evidence map›Paper›PMID 27542267›Full record

ArticleOncotarget2016

Detection of the T790M mutation of EGFR in plasma of advanced non-small cell lung cancer patients with acquired resistance to tyrosine kinase inhibitors (West Japan oncology group 8014LTR study).

Takayuki Takahama, Kazuko Sakai, Masayuki Takeda, Koichi Azuma, Toyoaki Hida, Masataka Hirabayashi, Tetsuya Oguri, Hiroshi Tanaka, Noriyuki Ebi, Toshiyuki Sawa and 10 more

Abstract read
In one paragraph

Article in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 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

40 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  16. Cell-Free Circulating Tumour DNA Blood Testing to DetectOntario health technology assessment series · 2020
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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

20 authors.

Takayuki TakahamaDepartment of Medical Oncology, Kinki University Faculty of Medicine, Osaka, Japan.
Kazuko SakaiDepartment of Genome Biology, Kinki University Faculty of Medicine, Osaka, Japan.
Masayuki TakedaDepartment of Medical Oncology, Kinki University Faculty of Medicine, Osaka, Japan.
Koichi AzumaDepartment of Internal Medicine, Division of Respirology, Neurology, and Rheumatology, Kurume University School of Medicine, Kurume, Fukuoka, Japan.
Toyoaki HidaDepartment of Thoracic Oncology, Aichi Cancer Center, Nagoya, Japan.
Masataka HirabayashiDepartment of Respiratory Medicine, Hyogo Prefectural Amagasaki General Medical Center, Hyogo, Japan.
Tetsuya OguriDepartment of Medical Oncology and Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
Hiroshi TanakaDepartment of Internal Medicine, Niigata Cancer Center Hospital, Niigata, Japan.
Noriyuki EbiDepartment of Respiratory Oncology, Iizuka Hospital, Fukuoka, Japan.
Toshiyuki SawaDepartment of Respiratory Medicine and Oncology, Gifu Municipal Hospital, Gifu, Japan.
Akihiro BesshoDepartment of Pulmonary Medicine, Japanese Red Cross Okayama Hospital, Okayama, Japan.
Motoko TachiharaDivision of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan.
Hiroaki AkamatsuThird Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan.
Shuji BandohDivision of Hematology, Rheumatology, and Respiratory Medicine, Department of Internal Medicine, Faculty of Medicine, Kagawa University, Kagawa, Japan.
Daisuke HimejiDepartment of Internal Medicine, Miyazaki Prefectural Miyazaki Hospital, Miyazaki, Japan.
Tatsuo OhiraDepartment of Surgery, Tokyo Medical University, Tokyo, Japan.
Mototsugu ShimokawaDepartment of Cancer Information Research, National Kyushu Cancer Center, Fukuoka, Japan.
Yoichi NakanishiResearch Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Kazuhiko NakagawaDepartment of Medical Oncology, Kinki University Faculty of Medicine, Osaka, Japan.
Kazuto NishioDepartment of Genome Biology, Kinki University Faculty of Medicine, Osaka, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionNext-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) have been developed to overcome resistance to earlier generations of such drugs mediated by a secondary T790M mutation of EGFR, but the performance of a second tumor biopsy to assess T790M mutation status can be problematic.

methodsWe developed and evaluated liquid biopsy assays for detection of TKI-sensitizing and T790M mutations of EGFR by droplet digital PCR (ddPCR) in EGFR mutation-positive non-small cell lung cancer (NSCLC) patients with acquired EGFR-TKI resistance.

resultsA total of 260 patients was enrolled between November 2014 and March 2015 at 29 centers for this West Japan Oncology Group (WJOG 8014LTR) study. Plasma specimens from all subjects as well as tumor tissue or malignant pleural effusion or ascites fluid from 41 patients were collected after the development of EGFR-TKI resistance. All plasma samples were genotyped successfully and the results were reported to physicians within 14 days. TKI-sensitizing and T790M mutations were detected in plasma of 120 (46.2%) and 75 (28.8%) patients, respectively. T790M was detected in 56.7% of patients with plasma positive for TKI-sensitizing mutations. For the 41 patients with paired samples obtained after acquisition of EGFR-TKI resistance, the concordance for mutation detection by ddPCR in plasma compared with tumor tissue or malignant fluid specimens was 78.0% for TKI-sensitizing mutations and 65.9% for T790M.

conclusionsNoninvasive genotyping by ddPCR with cell-free DNA extracted from plasma is a promising approach to the detection of gene mutations during targeted treatment.

Indexed as

Drug Resistance, NeoplasmMutationAdultAgedAged, 80 and overAscitesBiopsyCarcinoma, Non-Small-Cell LungCell-Free SystemDNA, NeoplasmErbB ReceptorsFemaleGenotypeHumansJapanLung NeoplasmsDNA, NeoplasmEGFR protein, humanErbB ReceptorsProtein-Tyrosine Kinasescell-free DNAepidermal growth factor receptor (EGFR)mutationnon–small cell lung cancerT790M

Identifiers

PMID27542267
PMCPMC5295446

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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.