PMID- 32339922 OWN - NLM STAT- MEDLINE DCOM- 20210225 LR - 20210225 IS - 1878-1705 (Electronic) IS - 1567-5769 (Linking) VI - 84 DP - 2020 Jul TI - Effectivity and safety of PD-1/PD-L1 inhibitors for different level of PD-L1-positive, advanced NSCLC: A meta-analysis of 4939 patients from randomized controlled trials. PG - 106452 LID - S1567-5769(20)30586-5 [pii] LID - 10.1016/j.intimp.2020.106452 [doi] AB - BACKGROUND: Effective improvement for the programmed death 1 (PD-1)/programmed death ligand 1 (PD-L1) inhibitors had been shown in advanced non-small cell lung cancer (NSCLC) patients compared with traditional therapy. However, we do not have ample evidences to demonstrate the safety and effectivity in the treatment of PD-L1-positive, advanced NSCLC. The relation was controversial about the expression of PD-L1 and survival outcomes of PD-1/PD-L1 inhibitors. MATERIALS AND METHODS: Electronic databases (PubMed, EMBASE, and the Cochrane library) and major conference proceedings were systematically searched for all clinical trials in NSCLC using PD-1/PD-L1 inhibitors. Randomized controlled trials (RCTs) were included to compare PD-1/PD-L1 inhibitors with chemotherapy in advanced NSCLC patients reporting adverse events (AEs) and immune-related AEs (irAEs). The incidence, Hazard Ratio (HR), Odds Ratio (OR), and corresponding 95% confidence interval (CI) of outcomes were calculated. RESULTS: A total of 4939 patients from 10RCTs were included. In the group of PD-L1 >/= 1%, PD-L1 >/= 5%, PD-L1 >/= 10%, PD-L1 >/= 50%, the HR of OS is 0.31(95%CI 0.38-0.23; p < 0.0001), 0.47(95%CI 0.82-0.12; p = 0.008), 0.85(95%CI 1.17-0.53; p < 0.0001), 0.47(95%CI 0.59-0.36; p < 0.0001) respectively. The HR of PFS is 0.13(95%CI 0.01-0.24; p = 0.027), 0.31(95%CI 0.00-0.62; p < 0.0001), 0.62(95%CI 0.30-0.93; p < 0.0001), 0.40(95% CI 0.20-0.59; p < 0.0001) respectively. In terms of summary adverse events, PD-1/PD-L1 inhibitors groups had a significant lower risks in any treat-realated AEs than chemotherapy. About irAEs, PD-1/PD-L1 inhibitors groups had a significant higher risks in irAEs than chemotherapy. CONCLUSION: PD-1/PD-L1 inhibitors are generally effected and safer than chemotherapy for patients with PD-L1-positive, advanced NSCLC. However, PD-1/PD-L1 inhibitors can generate a unique spectrum of irAEs, and even life-threatening. CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - Shi, Yuanchao AU - Shi Y AD - The Lanzhou University, The First Clinical Academy of Lanzhou University, Lanzhou 730000, Gansu, China. FAU - Duan, Jingwei AU - Duan J AD - The Lanzhou University, The First Clinical Academy of Lanzhou University, Lanzhou 730000, Gansu, China. FAU - Guan, Quanlin AU - Guan Q AD - Department of Surgical Oncology, The Lanzhou University First Hospital, Lanzhou 730000, Gansu, China. Electronic address: guanquanlin@163.com. FAU - Xue, Penglong AU - Xue P AD - Department of Oncology, The Xi an Ninth Hospital, Xi an 710000, Shanxi, China. FAU - Zheng, Ya AU - Zheng Y AD - Department of Gastroenterology, The Lanzhou University First Hospital, Lanzhou 730000, Gansu, China. LA - eng PT - Journal Article PT - Meta-Analysis PT - Systematic Review DEP - 20200424 PL - Netherlands TA - Int Immunopharmacol JT - International immunopharmacology JID - 100965259 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antineoplastic Agents, Immunological) RN - 0 (B7-H1 Antigen) RN - 0 (Immune Checkpoint Inhibitors) RN - 0 (Programmed Cell Death 1 Receptor) SB - IM MH - Antibodies, Monoclonal/adverse effects/therapeutic use MH - Antineoplastic Agents, Immunological/*adverse effects/therapeutic use MH - B7-H1 Antigen/*antagonists & inhibitors/metabolism MH - Carcinoma, Non-Small-Cell Lung/*drug therapy/immunology MH - Humans MH - Immune Checkpoint Inhibitors/*adverse effects/therapeutic use MH - Immunity/*drug effects MH - Lung Neoplasms/*drug therapy/immunology MH - Middle Aged MH - Programmed Cell Death 1 Receptor/*antagonists & inhibitors MH - Randomized Controlled Trials as Topic OTO - NOTNLM OT - Chemotherapy OT - Expression of PD-L1 OT - Non-Small-Lung-cancer OT - Programmed death 1 (PD-1)/programmed death ligand 1 (PD-L1) inhibitors EDAT- 2020/04/28 06:00 MHDA- 2021/02/26 06:00 CRDT- 2020/04/28 06:00 PHST- 2020/03/01 00:00 [received] PHST- 2020/03/26 00:00 [revised] PHST- 2020/03/26 00:00 [accepted] PHST- 2020/04/28 06:00 [pubmed] PHST- 2021/02/26 06:00 [medline] PHST- 2020/04/28 06:00 [entrez] AID - S1567-5769(20)30586-5 [pii] AID - 10.1016/j.intimp.2020.106452 [doi] PST - ppublish SO - Int Immunopharmacol. 2020 Jul;84:106452. doi: 10.1016/j.intimp.2020.106452. Epub 2020 Apr 24.