1. Comparative analysis of first-line treatment in NSCLC including unresectable stage III (IIIB/IIIC) and stage IV with low PD-L1 expression: Clinical trial eligible versus ineligible patients.
- Author
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Hata T, Yamada T, Goto Y, Amano A, Negi Y, Watanabe S, Furuya N, Oba T, Ikoma T, Nakao A, Tanimura K, Taniguchi H, Yoshimura A, Fukui T, Murata D, Kaira K, Shiotsu S, Hibino M, Okada A, Chihara Y, Kawachi H, Kijima T, and Takayama K
- Abstract
Background: Clinical trial eligible patients with advanced non-small cell lung cancer (aNSCLC) and low programmed cell death ligand 1 (PD-L1) expression achieve greater benefit from immune checkpoint inhibitor (ICI) combination chemotherapy (ICI-Chemo) compared with Chemo alone. We examined whether patients ineligible for clinical trials may benefit from ICI-Chemo., Methods: This multicenter retrospective cohort study enrolled patients with aNSCLC, including unresectable Stage III (IIIB/IIIC) and IV disease with a PD-L1 tumor proportion score of 1-49% treated with ICI-Chemo or Chemo as first-line therapy from 2018 to 2023 in Japan. Treatment outcome and safety of ICI-Chemo versus Chemo groups in trial-eligible and trial-ineligible patients was compared based on criteria from previous phase III clinical trials., Results: Overall, 728 patients were analyzed: 333 trial-eligible and 395 ineligible patients. The median overall survival was 25.1 months in the ICI-Chemo group and 18.5 months in the Chemo group for eligible patients (HR 0.73, 95 %CI: 0.54-0.97) and was 18.2 months in the ICI-Chemo group and 14.9 months in the Chemo group for ineligible patients (HR 0.75, 95 %CI: 0.59-0.95). Median progression-free survival was longer with ICI-Chemo in both groups. For ineligible patients, performance status (PS) ≥ 2 and squamous cell carcinoma (SqCC) were clinical factors associated with worse survival prognosis, and survival outcomes with ICI-Chemo and Chemo were comparable. The ineligible group had no increase in severe adverse events compared to the eligible group., Conclusions: This study suggests a possible clinical benefit of receiving ICI-Chemo for trial-ineligible patients with low PD-L1 expression, excluding those with PS ≥ 2 or SqCC., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Tadaaki Yamada received research grants from Ono Pharmaceutical, Janssen, AstraZeneca, and Takeda Pharmaceutical, and has received speaking honoraria from Eli Lilly and Chugai-Roshe outside the purview of the submitted work. Satoshi Watanabe received grants from Boehringer Ingelheim and Nippon Kayaku, and has received honoraria for speakers bureaus from Lilly, Novartis Pharma, Chugai Pharma Bristol-Myers, Ono Pharmaceutical, Daiichi Sankyo, Taiho Pharmaceutical, Nippon Kayaku, Kyowa Kirin, Merck, Takeda Pharmaceutical, Celltrion and AstraZeneca out side the purview of the submitted work. Hirokazu Taniguchi received lecture fees from AstraZeneca and Chugai Pharma. Tomoya Fukui received personal fees from AstraZeneca K.K., Boehringer-Ingelheim Japan Inc., Chugai Pharmaceutical Co. Ltd., Eli Lilly Japan K.K., Nippon Kayaku Co. Ltd., Novartis Pharma K.K., Ono Pharmaceutical Co. Ltd., and Pfizer Japan Inc. outside the purview of the submitted work. Kyoichi Kaira has received a speaker honorarium from Ono Pharmaceutical Company, Chugai Pharmaceutical, Bristol-Myers Company, Boehringer Ingelheim, and AstraZeneca, and research grants form AstraZeneca. Asuka Okada received personal fees from Chugai-Roshe, AstraZeneca, Boehringer Ingelheim, Eli Lilly Japan, Nippon Kayaku, and Bristol-Myers Squibb outside the purview of the submitted work. Hayato Kawachi received personal fees from Bristol-Myers Squibb, Ono Pharmaceutical Co. Ltd., Chugai Pharmaceutical Co. Ltd., AstraZeneca KK, Taiho Pharmaceutical Co. Ltd., Eli Lilly Japan KK, and MSD KK outside the purview of the submitted work. Takashi Kijima received personal fees from Chugai Pharmaceutical Co. Ltd. and MSD KK outside the purview of the submitted work. Koichi Takayama received research grants from Chugai Pharmaceutical Co. Ltd. and Ono Pharmaceutical and personal fees from AstraZeneca, Chugai Pharmaceutical Co. Ltd., MSD-Merck, Eli Lilly, Boehringer Ingelheim, and Daiichi-Sankyo outside the purview of the submitted work., (Copyright © 2025 Elsevier B.V. All rights reserved.)
- Published
- 2025
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