Evidence map›Paper›PMID 40836051›Full record

ArticleScientific reports2025

Evaluation of the optimal timing of radiotherapy in EGFR-Mutant oligometastatic NSCLC through a retrospective analysis of treatment sequences and survival outcomes.

Meng Zhang, Lan Wang, Qi Wang, Tian-Hui Guo, Wen Gao, Bi-Yuan Zhang, Hai-Ji Wang

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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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

2 citing papers in PubMed.

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4 · The record

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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

7 authors.

Meng ZhangDepartment of Radiation Oncology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong Province, China.
Lan WangDepartment of Radiation Oncology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong Province, China.
Qi WangDepartment of Radiation Oncology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong Province, China.
Tian-Hui GuoDepartment of Radiation Oncology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong Province, China.
Wen GaoDepartment of Radiation Oncology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong Province, China.
Bi-Yuan ZhangDepartment of Radiation Oncology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong Province, China. zhangbiyuan@qdu.edu.cn.
Hai-Ji WangDepartment of Radiation Oncology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong Province, China. wanghaiji@qdu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Non-small cell lung cancer (NSCLC) with EGFR mutations presents a unique challenge due to the development of oligometastasis during treatment with first-line tyrosine kinase inhibitors (TKIs). The optimal timing of radiotherapy in EGFR-mutant oligometastatic NSCLC remains debated. This study aims to investigate the timing of radiotherapy in relation to disease progression to optimize treatment outcomes. We conducted a retrospective analysis of stage IIIB-IV EGFR-mutant NSCLC patients who received first-line TKI therapy and developed oligoprogressive disease between January 2019 and October 2024. Two groups were compared: one receiving radiotherapy before disease progression (n = 41) and the other post-progression (n = 26). The primary outcomes were progression-free survival (PFS1), progression-free survival after radiotherapy (RT-PFS), and the duration of first-line TKI therapy. Statistical analyses were performed using Kaplan-Meier curves and Cox regression. A total of 67 patients were included. The median PFS1 was 13.8 months in the upfront consolidative radiotherapy group versus 9.8 months in the post-progression group (P = 0.391). The median duration of first-line TKI therapy was significantly longer in the post-progression radiotherapy group (20.3 months vs. 13.3 months, P < 0.001). Kaplan-Meier survival analysis showed a significant difference in TKI duration, suggesting delayed radiotherapy improved TKI duration. This retrospective study suggests that the timing of radiotherapy may influence the duration of first-line EGFR-TKI therapy in patients with oligometastatic NSCLC. Administering local therapy at the time of oligoprogression may help prolong TKI benefit without premature treatment escalation. However, given the study's retrospective design and potential baseline imbalances, these findings should be interpreted with caution and require validation in future prospective trials.

Indexed as

Carcinoma, Non-Small-Cell LungLung NeoplasmsRadiotherapyAdultAgedChinaErbB ReceptorsFemaleHumansMaleMiddle AgedNeoplasm MetastasisRetrospective StudiesTyrosine Kinase InhibitorsEGFR protein, humanErbB ReceptorsTyrosine Kinase InhibitorsEGFR-mutant NSCLCOligometastatic diseaseRadiotherapyTyrosine kinase inhibitors (TKIs)

Identifiers

PMID40836051
PMCPMC12368105

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