A retrospective study of clinicopathologic and molecular features of inoperable early-stage non-small cell lung cancer treated with stereotactic ablative radiotherapy

Background/Purpose: Stereotactic ablative radiotherapy (SABR) is the treatment of choice for medically inoperable, early-stage non-small cell lung cancer (ES-NSCLC). The influence of oncogenic driver alterations and comorbidities are not well known. Here we present treatment outcomes based on clinic...

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Autores principales: I-Han Lee, Guann-Yiing Chen, Chun-Ru Chien, Jason Chia-Hsien Cheng, Jenny Ling-Yu Chen, Wen-Chi Yang, Jin-Shing Chen, Feng-Ming Hsu
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Publicado: Elsevier 2021
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spelling oai:doaj.org-article:8f093c41272a4b83bdc71725bb97894e2021-12-02T04:59:09ZA retrospective study of clinicopathologic and molecular features of inoperable early-stage non-small cell lung cancer treated with stereotactic ablative radiotherapy0929-664610.1016/j.jfma.2020.12.028https://doaj.org/article/8f093c41272a4b83bdc71725bb97894e2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0929664620306288https://doaj.org/toc/0929-6646Background/Purpose: Stereotactic ablative radiotherapy (SABR) is the treatment of choice for medically inoperable, early-stage non-small cell lung cancer (ES-NSCLC). The influence of oncogenic driver alterations and comorbidities are not well known. Here we present treatment outcomes based on clinicopathologic features and molecular profiles. Methods: We retrospectively analyzed patients treated with SABR for inoperable ES-NSCLC. Molecular features of oncogenic driver alterations included EGFR, ALK, and ROS1. Comorbidities were assessed using the age-adjusted Charlson Comorbidity Index (ACCI). Survival was calculated using the Kaplan–Meier method. The Cox regression model was performed for univariate and multivariate analyses of prognostic factors. Competing risk analysis was used to evaluate the cumulative incidence of disease progression. Results: From 2008 to 2020, 100 patients (median age: 82 years) were enrolled. The majority of patients were male (64%), ever-smokers (60%), and had adenocarcinoma (65%). With a median follow-up of 21.5 months, the median overall survival (OS) and real-world progression-free survival were 37.7 and 25.1 months, respectively. The competing-risk-adjusted 3-year cumulative incidences of local, regional, and disseminated failure were 8.2%, 14.5%, and 31.2%, respectively. An ACCI ≥7 was independently associated with inferior OS (hazard ratio [HR] 2.45, p = 0.03). Tumor size ≥4 cm (HR 4.16, p < 0.001) was the most important independent prognostic factor predicting real-world progression. EGFR mutation status had no impact on the outcomes. Conclusion: SABR provides excellent local control in ES-NSCLC, although disseminated failures remains a major concern. ACCI is the best indicator for OS, while tumor sizes ≥4 cm predicts poor disease control.I-Han LeeGuann-Yiing ChenChun-Ru ChienJason Chia-Hsien ChengJenny Ling-Yu ChenWen-Chi YangJin-Shing ChenFeng-Ming HsuElsevierarticleStereotactic ablative radiotherapyNon-small cell lung cancerPrognostic factorOncogenic driver alterationInoperable early-stageMedicine (General)R5-920ENJournal of the Formosan Medical Association, Vol 120, Iss 12, Pp 2176-2185 (2021)
institution DOAJ
collection DOAJ
language EN
topic Stereotactic ablative radiotherapy
Non-small cell lung cancer
Prognostic factor
Oncogenic driver alteration
Inoperable early-stage
Medicine (General)
R5-920
spellingShingle Stereotactic ablative radiotherapy
Non-small cell lung cancer
Prognostic factor
Oncogenic driver alteration
Inoperable early-stage
Medicine (General)
R5-920
I-Han Lee
Guann-Yiing Chen
Chun-Ru Chien
Jason Chia-Hsien Cheng
Jenny Ling-Yu Chen
Wen-Chi Yang
Jin-Shing Chen
Feng-Ming Hsu
A retrospective study of clinicopathologic and molecular features of inoperable early-stage non-small cell lung cancer treated with stereotactic ablative radiotherapy
description Background/Purpose: Stereotactic ablative radiotherapy (SABR) is the treatment of choice for medically inoperable, early-stage non-small cell lung cancer (ES-NSCLC). The influence of oncogenic driver alterations and comorbidities are not well known. Here we present treatment outcomes based on clinicopathologic features and molecular profiles. Methods: We retrospectively analyzed patients treated with SABR for inoperable ES-NSCLC. Molecular features of oncogenic driver alterations included EGFR, ALK, and ROS1. Comorbidities were assessed using the age-adjusted Charlson Comorbidity Index (ACCI). Survival was calculated using the Kaplan–Meier method. The Cox regression model was performed for univariate and multivariate analyses of prognostic factors. Competing risk analysis was used to evaluate the cumulative incidence of disease progression. Results: From 2008 to 2020, 100 patients (median age: 82 years) were enrolled. The majority of patients were male (64%), ever-smokers (60%), and had adenocarcinoma (65%). With a median follow-up of 21.5 months, the median overall survival (OS) and real-world progression-free survival were 37.7 and 25.1 months, respectively. The competing-risk-adjusted 3-year cumulative incidences of local, regional, and disseminated failure were 8.2%, 14.5%, and 31.2%, respectively. An ACCI ≥7 was independently associated with inferior OS (hazard ratio [HR] 2.45, p = 0.03). Tumor size ≥4 cm (HR 4.16, p < 0.001) was the most important independent prognostic factor predicting real-world progression. EGFR mutation status had no impact on the outcomes. Conclusion: SABR provides excellent local control in ES-NSCLC, although disseminated failures remains a major concern. ACCI is the best indicator for OS, while tumor sizes ≥4 cm predicts poor disease control.
format article
author I-Han Lee
Guann-Yiing Chen
Chun-Ru Chien
Jason Chia-Hsien Cheng
Jenny Ling-Yu Chen
Wen-Chi Yang
Jin-Shing Chen
Feng-Ming Hsu
author_facet I-Han Lee
Guann-Yiing Chen
Chun-Ru Chien
Jason Chia-Hsien Cheng
Jenny Ling-Yu Chen
Wen-Chi Yang
Jin-Shing Chen
Feng-Ming Hsu
author_sort I-Han Lee
title A retrospective study of clinicopathologic and molecular features of inoperable early-stage non-small cell lung cancer treated with stereotactic ablative radiotherapy
title_short A retrospective study of clinicopathologic and molecular features of inoperable early-stage non-small cell lung cancer treated with stereotactic ablative radiotherapy
title_full A retrospective study of clinicopathologic and molecular features of inoperable early-stage non-small cell lung cancer treated with stereotactic ablative radiotherapy
title_fullStr A retrospective study of clinicopathologic and molecular features of inoperable early-stage non-small cell lung cancer treated with stereotactic ablative radiotherapy
title_full_unstemmed A retrospective study of clinicopathologic and molecular features of inoperable early-stage non-small cell lung cancer treated with stereotactic ablative radiotherapy
title_sort retrospective study of clinicopathologic and molecular features of inoperable early-stage non-small cell lung cancer treated with stereotactic ablative radiotherapy
publisher Elsevier
publishDate 2021
url https://doaj.org/article/8f093c41272a4b83bdc71725bb97894e
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