Evidence map›Paper›PMID 42452865›Full record

ArticleZhongguo fei ai za zhi = Chinese journal of lung cancer2026

[Radiotherapy for SMARCA4-deficient Pulmonary Neoplasms: 
Efficacy and Related Parameter Analysis].

Yu Gu, Ruxi Gao, Xingwen Fan, Xiaoxiao Ge

Abstract readEnglish Abstract
In one paragraph

Article in Zhongguo fei ai za zhi = Chinese journal of lung cancer, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Yu GuDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.
Ruxi GaoDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.
Xingwen FanDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.
Xiaoxiao GeDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSMARCA4-deficient pulmonary neoplasms have emerged as a major focus of lung cancer research in recent years. This subtype is characterized by aggressive behavior and poor prognosis. However, radiotherapy-related studies in this population remain scarce, and evidence is lacking regarding the optimal selection of radiotherapy parameters and the sequencing of combination with immunotherapy. The present study aimed to evaluate the efficacy of radiotherapy in these tumors and to explore the prognostic value of radiotherapy parameters.

methodsClinical data of 88 patients with SMARCA4-deficient pulmonary neoplasms were retrospectively analyzed. Patients were divided into a radiotherapy group (n=20) and a non-radiotherapy group (n=68). Overall survival (OS) was compared between groups using the Kaplan-Meier method. Subgroup analyses were performed for radiotherapy site, biological equivalent dose (BED), fractionation mode, and the timing of radiotherapy combined with immunotherapy.

resultsThe radiotherapy group had a lower proportion of patients aged ≥60 years (25.0% vs 66.2%, P<0.001) and a higher proportion receiving immunotherapy (65.0% vs 33.8%, P=0.013) compared with the non-radiotherapy group. The median OS was not reached in the radiotherapy group, which was significantly superior to that in the non-radiotherapy group (22.9 mon, P=0.048). Among patients receiving radiotherapy, those who also received immunotherapy had a significantly longer median OS than those receiving radiotherapy alone. No statistically significant differences in OS were observed among subgroups stratified by radiotherapy site, BED, fractionation schedule or timing.

conclusionsRadiotherapy effectively improves OS in SMARCA4-deficient lung tumors, with synergistic potential when combined with immunotherapy. The lack of prognostic impact of radiotherapy parameters supports regimen simplification, while the timing of combined therapy needs refinement. These exploratory results lay a critical foundation for future large‑sample confirmatory studies.

Indexed as

DNA HelicasesLung NeoplasmsNuclear ProteinsTranscription FactorsAdultAgedFemaleHumansMaleMiddle AgedPrognosisRetrospective StudiesTreatment OutcomeDNA HelicasesNuclear ProteinsSMARCA4 protein, humanTranscription FactorsImmunotherapyLung neoplasmsRadiotherapySMARCA4 deficiencyUndifferentiated tumor

Identifiers

PMID42452865
PMCPMC13494947

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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.