Prognostic impact of primary cancer adjoining emphysematous bullae in non-small cell lung cancer patients treated with immune checkpoint inhibitors
- 31 May 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Cancer Immunology, Immunotherapy
- Vol. 70 (6), 1745-1753
- https://doi.org/10.1007/s00262-020-02783-6
Abstract
Background Immune checkpoint inhibitors (ICIs) have become a standard therapy in non-small cell lung cancer (NSCLC). Although lung cancer adjoining emphysematous bullae (Ca-ADJ) were reported to express higher programmed cell death-ligand 1 (PD-L1), the predictive impact of Ca-ADJ on the response to ICIs is unknown. Methods Two hundred and fifty-seven advanced or recurrent NSCLC patients treated with ICI monotherapy at Kyushu University Hospital and National Hospital Organization Kyushu Cancer Center were analyzed. To minimize the bias arising from the patients' background, adjusted Kaplan-Meier survival curves and Cox proportional hazards regression analyses using inverse probability of treatment weights (IPTW) were performed. Results Of the 257 patients, 55 had Ca-ADJ. Patients with Ca-ADJ were significantly associated with younger age (P = 0.0343), male sex (P = 0.0070), and smoking (P = 0.0080). The objective response rate of cases with Ca-ADJ was significantly higher than that of those without Ca-ADJ (36.4% vs. 20.8%, respectively; P = 0.0167). The disease control rate of cases with Ca-ADJ was also significantly higher than tumors without Ca-ADJ (63.6% vs. 47.5%, respectively; P = 0.0341). The IPTW-adjusted Kaplan-Meier curves showed that patients with Ca-ADJ had significantly longer progression-free survival (PFS) and overall survival (OS) than those without Ca-ADJ (P = 0.0407 and P = 0.0126, respectively). On IPTW-adjusted Cox analysis, Ca-ADJ was an independent predictor of PFS and OS (P < 0.0001 and P < 0.0001, respectively). Conclusions Patients with Ca-ADJ may be good candidates for ICIs. These findings should be validated prospectively.This publication has 35 references indexed in Scilit:
- Global cancer statistics, 2012CA: A Cancer Journal for Clinicians, 2015
- New response evaluation criteria in solid tumours: Revised RECIST guideline (version 1.1)European Journal of Cancer, 2009
- Fleischner Society: Glossary of Terms for Thoracic ImagingRadiology, 2008
- The IASLC Lung Cancer Staging Project: Proposals for the Revision of the TNM Stage Groupings in the Forthcoming (Seventh) Edition of the TNM Classification of Malignant TumoursJournal of Thoracic Oncology, 2007
- Adjusted Kaplan–Meier estimator and log‐rank test with inverse probability of treatment weighting for survival dataStatistics in Medicine, 2005
- Genetic Heterogeneity of the Epidermal Growth Factor Receptor in Non–Small Cell Lung Cancer Cell Lines Revealed by a Rapid and Sensitive Detection System, the Peptide Nucleic Acid-Locked Nucleic Acid PCR ClampCancer Research, 2005
- Genetic alterations of multiple tumor suppressors and oncogenes in the carcinogenesis and progression of lung cancerOncogene, 2002
- Characteristic Radiographic Features of Pulmonary Carcinoma Associated with Large BullaThe Annals of Thoracic Surgery, 1988
- The Correlation of Carcinoma and Congenital Cystic Emphysema of the LungsDiseases of the Chest, 1953