Dataset Information

Trends and costs of stereotactic body radiation therapy in metastatic non-small cell lung cancer.

ABSTRACT:

Background

The purpose of this study is to describe stereotactic body radiation therapy (SBRT) use, outcomes, hospitalizations and costs compared to patients receiving chemotherapy among patients with metastatic non-small cell lung cancer (NSCLC).

Methods

Using the Surveillance, Epidemiology, and End Results (SEER)-Medicare database, we identified patients aged ≥66 with metastatic NSCLC treated with SBRT as first-line treatment between 2004 and 2014. Multivariable logistic regression identified covariates associated with SBRT. Overall survival (OS) between SBRT and chemotherapy was compared using the Kaplan-Meier estimator and Cox proportional hazards regression. To compare hospitalizations and associated costs, we matched patients treated with SBRT to those with comparable prognostic factors receiving chemotherapy.

Results

We identified 215 patients with metastatic NSCLC who received SBRT and 12,486 patients who received chemotherapy as first-line treatment. SBRT use increased from 0.5% to 3% and was associated with older age, female sex, poor disability status, and lower T- and N-stage. OS increased with SBRT, female sex, higher income and decreased with higher Charlson Comorbidity Score ≥2, poor disability status, higher T-stage and higher N-stage. Among a matched sample, SBRT patients underwent fewer hospitalizations vs. chemotherapy patients (73% vs. 81%, P=0.02). Among those hospitalized, SBRT patients incurred higher hospitalization costs ($33,063 vs. $23,865, P<0.001) but costs per month of survival were similar.

Conclusions

SBRT is increasing among Medicare patients with metastatic NSCLC. Our findings suggest that SBRT may play a role in management of select metastatic NSCLC patients in addition to standard-of-care chemotherapy.

SUBMITTER: Lester-Coll NH

PROVIDER: S-EPMC9344414 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature

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Publications

Trends and costs of stereotactic body radiation therapy in metastatic non-small cell lung cancer.

Lester-Coll Nataniel H NH Skelly Joan J Vacek Pamela M PM Sprague Brian L BL

Journal of thoracic disease 20220701 7

<h4>Background</h4>The purpose of this study is to describe stereotactic body radiation therapy (SBRT) use, outcomes, hospitalizations and costs compared to patients receiving chemotherapy among patients with metastatic non-small cell lung cancer (NSCLC).<h4>Methods</h4>Using the Surveillance, Epidemiology, and End Results (SEER)-Medicare database, we identified patients aged ≥66 with metastatic NSCLC treated with SBRT as first-line treatment between 2004 and 2014. Multivariable logistic regress ...[more]

PMID: 35928617

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Project description:IntroductionThe present study explores changes in pulmonary function, symptoms and radiological signs of pneumonitis after curatively intended stereotactic body radiation therapy (SBRT).MethodsAll inoperable, early-stage non-small cell lung cancer patients treated with stereotactic body radiation therapy (SBRT) from 2014-2017 were included in this single-centre study. They were followed regularly for 12 months after treatment. The patients were classified into three groups based on radiology and symptomatology: no radiation pneumonitis, asymptomatic and symptomatic radiation pneumonitis.ResultsForty-four patients with stage IA-IIB disease were treated with 45-56 Gy in 3-8 fractions. The median age was 75 years, 43% of the patients were female; 60% of the patients had a COPD in GOLD grade of 2-4, and 95.5% were active or former smokers. Symptomatic radiation pneumonitis occurred in 18% of the patients and asymptomatic pneumonitis as defined by radiology, in 39%. The mean of forced expiratory volume in 1 second (FEV1) and diffusion capacity for carbon monoxide (DLCO) decreases for all patients during the first years were higher than one would expect from physiologic ageing. FEV1 and DLCO in percent decrease 7-8% at 1-1.5 months in the symptomatic radiation pneumonitis group. CT scan findings consistent with radiation pneumonitis occurred after a median of 2.9 months in the symptomatic and 5.4 months in the asymptomatic radiation pneumonitis groups. In the group with symptomatic radiation pneumonitis, symptoms, as measured by the Clinical COPD questionnaire score, significantly increased at 3 and 6 months. Significant higher maximum doses to the critical lung volumes DC1000cm3 (1000 cm3 of lung receiving a given dose or less) and DC 1500cm3 (1500 cm3 of lung receiving a given dose or less) were observed in patients who developed radiation pneumonitis.ConclusionEarly decrease in measured FEV1 and DLCO occurred before imaging changes and symptoms and might indicate the development of symptomatic radiation pneumonitis. The dose to critical lung volumes of DC1000 cm3 and DC1500 cm3 may predict the risk for the development of symptomatic radiation pneumonitis.

Dataset Information

Trends and costs of stereotactic body radiation therapy in metastatic non-small cell lung cancer.

Background

Methods

Results

Conclusions

Publications

Trends and costs of stereotactic body radiation therapy in metastatic non-small cell lung cancer.

Similar Datasets

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