• J. Thorac. Cardiovasc. Surg. · Jun 2024

    Comparative Study

    Induction Chemoimmunotherapy with Surgery versus Concurrent Chemoradiation followed by Immunotherapy for Stage III-N2 Non-small Cell Lung Cancer.

    • Arvind Kumar, Deepti Srinivasan, Alexandra L Potter, Camille Mathey-Andrews, Michael Lanuti, Linda W Martin, and Jeffrey YangChi-FuCFDivision of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, Boston, Mass. Electronic address: cjyang@mgh.harvard.edu..
    • Icahn School of Medicine at Mount Sinai, New York, NY.
    • J. Thorac. Cardiovasc. Surg. 2024 Jun 1; 167 (6): 18951905.e21895-1905.e2.

    ObjectiveDespite the growing relevance of immunotherapy for non-small cell lung cancer (NSCLC), there is limited consensus on the optimal treatment strategy for locally advanced NSCLC. This study evaluated the overall survival of patients with stage III-N2 NSCLC undergoing induction chemoimmunotherapy with surgery (CT/IO+Surgery) and definitive concurrent chemoradiation followed by immunotherapy (cCRT+IO).MethodsPatients with cT1-3, N2, M0 NSCLC in the National Cancer Database (2013 to 2019) were included and stratified by treatment regimen: CT/IO+Surgery or cCRT+IO. Overall survival was evaluated using Kaplan-Meier analysis, Cox proportional hazards modeling, and propensity score matching on 10 prognostic variables.ResultsOf the 3382 patients who met the study eligibility criteria, 3289 (97.3%) received cCRT+IO and 93 (2.8%) received CT/IO+Surgery. The 3-year overall survival of the entire cohort was 58.2% (95% CI, 56.2% to 60.1%). Multivariable-adjusted Cox proportional hazards modeling demonstrated better survival after CT/IO+Surgery than after cCRT+IO (hazard ratio [HR], 0.52; 95% confidence interval [CI], 0.32 to 0.84; P = .007). In a 3:1 variable ratio propensity score-matched analysis of 223 patients who received cCRT+IO and 76 patients who received CT/IO+Surgery, 3-year overall survival was 63.2% (95% CI, 55.9% to 70.2%) after cCRT+IO and 77.2% (95% CI, 64.6% to 85.7%) after CT/IO+Surgery (P = .029).ConclusionsIn this national analysis, multimodal treatment including immunotherapy was associated with a 3-year overall survival rate of 58.2% for all patients with stage III-N2 NSCLC and 77.2% for patients who underwent chemoimmunotherapy followed by surgery. These results should be considered hypothesis-generating and demonstrate the importance of developing a randomized trial to evaluate the role of surgery versus chemoradiation for locally advanced NSCLC in the modern immunotherapy era.Copyright © 2023 The American Association for Thoracic Surgery. Published by Elsevier Inc. All rights reserved.

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