PMID- 33182025 OWN - NLM STAT- MEDLINE DCOM- 20210602 LR - 20210602 IS - 1878-1705 (Electronic) IS - 1567-5769 (Linking) VI - 88 DP - 2020 Nov TI - The association between proton pump inhibitors use and clinical outcome of patients receiving immune checkpoint inhibitors therapy. PG - 106972 LID - S1567-5769(20)32413-9 [pii] LID - 10.1016/j.intimp.2020.106972 [doi] AB - BACKGROUND: The gut microbiome can mediate the efficacy of immune checkpoint inhibitors (ICI). Meanwhile, proton pump inhibitors (PPI) can modulate the gut microbiome significantly. However, the impact of PPI use on the clinical outcome of ICI therapy remains unclear. METHODS: Searches of PubMed, EMBASE, and the Cochrane Library were conducted to retrieve studies exploring the relationship between PPI use and the clinical benefit of patients undergoing ICI therapy through June 2020. The pooled hazard ratio (HR) and 95% confidence intervals (CIs) were calculated to evaluate the influence of PPI use on overall survival (OS) and progression-free survival (PFS). RESULTS: A total of seven studies were eligible for our final analysis. There was no significant association between PPI use and OS or PFS (PPI users versus non-users: HR for OS: 1.05, 95% CI: 0.79-1.40, P = 0.73; HR for PFS: 0.90, 95% CI: 0.66-1.23, P = 0.51). However, subgroup analyses demonstrated that PPI use was related to a superior PFS of melanoma patients (HR: 0.50, 95% CI: 0.28-0.91, P = 0.02) and an inferior PFS of non-small cell lung cancer (NSCLC) patients (HR: 1.17, 95% CI: 1.05-1.31, P = 0.006). CONCLUSIONS: Our present study indicates that PPI use is not significantly associated with OS and PFS of patients undergoing ICI treatment. However, concomitant PPI therapy may have a positive effect on melanoma patients and a negative effect on NSCLC patients. It is advisable for clinical oncologists to evaluate the necessity for PPI use when they treat patients with ICI therapy. CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - Li, Manyu AU - Li M AD - Department of Oncology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China. FAU - Zeng, Chaofan AU - Zeng C AD - Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China. FAU - Yao, Jiannan AU - Yao J AD - Department of Oncology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China. FAU - Ge, Yang AU - Ge Y AD - Department of Oncology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China. FAU - An, Guangyu AU - An G AD - Department of Oncology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China. Electronic address: agybjcy@163.com. LA - eng PT - Journal Article PT - Meta-Analysis PT - Systematic Review DEP - 20200918 PL - Netherlands TA - Int Immunopharmacol JT - International immunopharmacology JID - 100965259 RN - 0 (Immune Checkpoint Inhibitors) RN - 0 (Proton Pump Inhibitors) SB - IM MH - Gastrointestinal Microbiome/drug effects MH - Humans MH - Immune Checkpoint Inhibitors/*therapeutic use MH - Neoplasms/*drug therapy MH - Proton Pump Inhibitors/*therapeutic use OTO - NOTNLM OT - Gastrointestinal microbiome OT - Immune checkpoint inhibitors OT - Meta-analysis OT - Proton pump inhibitors OT - Survival COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2020/11/14 06:00 MHDA- 2021/06/03 06:00 CRDT- 2020/11/13 01:01 PHST- 2020/07/16 00:00 [received] PHST- 2020/08/11 00:00 [revised] PHST- 2020/09/01 00:00 [accepted] PHST- 2020/11/14 06:00 [pubmed] PHST- 2021/06/03 06:00 [medline] PHST- 2020/11/13 01:01 [entrez] AID - S1567-5769(20)32413-9 [pii] AID - 10.1016/j.intimp.2020.106972 [doi] PST - ppublish SO - Int Immunopharmacol. 2020 Nov;88:106972. doi: 10.1016/j.intimp.2020.106972. Epub 2020 Sep 18.