Evidence map›Paper›PMID 31943796›Full record

ArticleThoracic cancer2020

Overcoming resistance by ALK compound mutation (I1171S + G1269A) after sequential treatment of multiple ALK inhibitors in non-small cell lung cancer.

Ken Takahashi, Yosuke Seto, Koutaroh Okada, Shinya Uematsu, Ken Uchibori, Mika Tsukahara, Tomoko Oh-Hara, Naoya Fujita, Noriko Yanagitani, Makoto Nishio and 2 more

Open access · goldAbstract readCase Reports
In one paragraph

Article in Thoracic cancer, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.3field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
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  3. [Recent Advances in the Treatment of Non-small Cell Lung Cancer with Brigatinib].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2025
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  11. Remarkable Clinical Response ofOncoTargets and therapy · 2023
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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

12 authors at 3 institutions in 1 country.

Ken TakahashiDivision of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan.
Yosuke SetoDivision of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan.
Koutaroh OkadaDivision of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan.
Shinya UematsuDepartment of Thoracic Medical Oncology, The Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
Ken UchiboriDepartment of Thoracic Medical Oncology, The Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
Mika TsukaharaDivision of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan.
Tomoko Oh-HaraDivision of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan.
Naoya FujitaCancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan.
Noriko YanagitaniDepartment of Thoracic Medical Oncology, The Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
Makoto NishioDepartment of Thoracic Medical Oncology, The Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
Kenichi OkuboDepartment of Thoracic Surgery, Tokyo Medical and Dental University, Tokyo, Japan.
Ryohei KatayamaDivision of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan.ORCID 0000-0001-7394-895X
The Cancer Institute Hospital · JPTokyo Medical and Dental University · JPJapanese Foundation For Cancer Research · JP

Funding

Japan Agency for Medical Research and Development JP19ck0106472h0001Japan Agency for Medical Research and Development JP19cm0106203h0004Japan Society for the Promotion of Science JP15H02368Japan Society for the Promotion of Science JP17H06327Japan Society for the Promotion of Science JP19H03524Nippon Foundation N/A
6 · The paper itself

Abstract

backgroundAnaplastic lymphoma kinase (ALK) fusion genes are found in 3%-5% of non-small cell lung cancers (NSCLCs). ALK inhibitors show a very high response rate to ALK-positive NSCLCs. However, the emergence of acquired resistance is inevitable. In this study, we investigated the drugs for overcoming resistance especially compound mutations after sequential treatment with crizotinib, alectinib, and lorlatinib.

methodNext-generation sequencing (NGS) and Sanger sequencing were performed on a liver biopsy tissue obtained from a clinical case. Ba/F3 cells in which mutant EML4-ALK were overexpressed were prepared, and cell viability assay and immunoblotting were performed to check the sensitivity of five independent ALK inhibitors.

resultsI1171S + G1269A double mutation was identified by NGS and Sanger sequencing on a liver biopsy tissue from a patient who relapsed on lorlatinib treatment. Ceritinib and brigatinib-but not other ALK inhibitors-were active against the compound mutations in the cell line model.

conclusionsWith the sequential ALK inhibitors treatment, cancer cells accumulate new mutations in addition to mutations acquired previously. The identified compound mutation (I1171S + G1269A) was found to be sensitive to ceritinib and brigatinib, and indeed the patient's tumor partially responded to ceritinib. KEY POINTS: ALK compound mutation was found in a clinical sample that was resistant to lorlatinib after sequential ALK-tyrosine kinase inhibitor (TKI) treatment. Ceritinib and brigatinib are potential overcoming drugs against ALK I1171S + G1269A double mutation.

Indexed as

MutationAgedAnaplastic Lymphoma KinaseApoptosisCarbazolesCarcinoma, Non-Small-Cell LungCell ProliferationCrizotinibDrug Resistance, NeoplasmFemaleHumansLung NeoplasmsOrganophosphorus CompoundsPiperidinesProtein Kinase InhibitorsPyrimidinesalectinibALK protein, humanAnaplastic Lymphoma KinasebrigatinibCarbazolesceritinibCrizotinibOrganophosphorus CompoundsPiperidinesProtein Kinase InhibitorsPyrimidinesSulfonesALK compound mutationnext-generation sequencenon-small cell lung cancer

Identifiers

PMID31943796
PMCPMC7049522
OpenAlexW2999090889

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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.