Abstract
Background/Aim: Platinum-doublet chemotherapy plus either programmed cell death 1 (PD-1) or programmed death ligand 1 (PD-L1) checkpoint inhibitors has been reported to improve the survival of patients with advanced non-small cell lung cancer (NSCLC). The IMpower150 study showed significant improvements in progression-free survival and overall survival with atezolizumab in combination with bevacizumab, a humanized anti-VEGF monoclonal antibody, paclitaxel, and carboplatin (ABCP therapy) in chemotherapy-naïve patients with non-squamous NSCLC. We herein report the efficacy and safety of ABCP therapy in Japanese patients with non-squamous NSCLC in clinical practice. Patients and Methods: We retrospectively evaluated the efficacy and safety of ABCP therapy in 30 patients treated at our hospital from February 2019 to December 2021. Results: The median age of patients was 69 years, 24 (80.0%) patients were male, 29 (96.7%) patients had a performance status of 0 or 1, 28 (93.3%) patients had adenocarcinoma histology, and 7 (23.3%) patients had epidermal growth factor receptor mutations. Evaluation of the PD-L1 tumor proportion score (TPS) showed that 12 (40.0%), 8 (26.7%), and 6 (20.0%) patients had a TPS of ≥50%, 1% to 49%, and <1%, respectively. The objective response rate of the intention-to-treat wild-type population was 73.9%, and the median progression-free survival was 8.3 months. Immune checkpoint inhibitor (ICI)-induced pneumonitis occurred in one (3.3%) patient. Conclusion: ABCP therapy for Japanese non-squamous NSCLC patients in a clinical setting achieved a high response rate with low incidence of ICI-induced pneumonitis equivalent to those observed in IMpower150 study.
- Received October 10, 2022.
- Revision received November 25, 2022.
- Accepted December 19, 2022.
- Copyright © 2023 International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.
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