Evidence map›Paper›PMID 39731296›Full record

ArticleThoracic cancer2025

A Case of Primary Lung Adenocarcinoma With Recurrent Brain Metastasis due to Transformation to Small Cell Carcinoma During Adjuvant Atezolizumab Therapy.

Nao Kobayashi, Noriaki Sunaga, Masakiyo Yatomi, Ikuo Wakamatsu, Sohei Muto, Hayato Ikota, Rei Yamaguchi, Yoichi Ohtaki, Toshiteru Nagashima, Nobuteru Kubo and 7 more

Abstract readCase Reports
In one paragraph

Article in Thoracic cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

17 authors.

Nao KobayashiDepartment of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Noriaki SunagaDepartment of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.ORCID https://orcid.org/0000-0002-5966-4579
Masakiyo YatomiDepartment of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Ikuo WakamatsuDepartment of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Sohei MutoDepartment of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Hayato IkotaDepartment of Diagnostic Pathology, Gunma University Hospital, Maebashi, Gunma, Japan.
Rei YamaguchiDepartment of Neurosurgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Yoichi OhtakiDepartment of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.ORCID https://orcid.org/0000-0001-5485-3234
Toshiteru NagashimaDepartment of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Nobuteru KuboDepartment of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Tomomi MasudaDepartment of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Yosuke MiuraDepartment of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Hiroaki TsurumakiDepartment of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.ORCID https://orcid.org/0000-0003-0837-9329
Reiko SakuraiDepartment of Medical Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Yasuhiko KogaDepartment of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Takeshi HisadaGunma University Graduate School of Health Sciences, Maebashi, Gunma, Japan.
Toshitaka MaenoDepartment of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.ORCID https://orcid.org/0000-0002-8428-1617

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Histologic transformation from non-small cell to small cell lung cancer (SCLC) is a resistance mechanism to immune checkpoint inhibitors. We report herein a case of lung adenocarcinoma who developed liver and brain metastases during adjuvant atezolizumab therapy. The patient underwent a craniotomy to resect a brain metastasis, which was pathologically diagnosed as SCLC. He subsequently received platinum-based chemotherapy with durvalumab, resulting in sustained regression of the liver metastases. This case demonstrates a metastatic brain tumor-acquired resistance to atezolizumab through histologic transformation from adenocarcinoma to SCLC. Therefore, rebiopsy is needed if recurrent disease appears during immune checkpoint inhibitor treatment in patients with non-small cell lung cancer.

Indexed as

Adenocarcinoma of LungAntibodies, Monoclonal, HumanizedBrain NeoplasmsLung NeoplasmsSmall Cell Lung CarcinomaHumansAntibodies, Monoclonal, Humanizedatezolizumabadenocarcinomaimmune checkpoint inhibitornon‐small cell lung cancersmall cell lung cancertherapeutic resistance

Identifiers

PMID39731296
PMCPMC11735726

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.