Antacid exposure and immunotherapy outcomes among patients with advanced hepatocellular carcinoma
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
Background:
Antibiotic exposure has been associated with worse outcomes with immune checkpoint inhibitors (ICIs) in cancer patients, likely due to disruption of the gut microbiome. Other commonly prescribed medications, such as proton pump inhibitors (PPIs) and histamine-2-receptor antagonists (H2RAs), are also known to disrupt the microbiome, but data on their association with ICI outcomes are conflicting.
Methods:
We conducted a retrospective, multicenter, international cohort study including 314 hepatocellular carcinoma (HCC) patients treated with ICIs from 2017 to 2019 to assess the association between PPI or H2RA exposure (up to 30 days before ICI) and overall survival. Secondary outcomes included overall response rate (ORR) and development of any treatment-related adverse events (AEs).
Results:
Baseline PPI/H2RA exposure was not associated with overall survival in univariable (HR 1.01, 95% CI 0.75–1.35) or multivariable analysis (HR 0.98, 95% CI 0.71–1.36). Baseline PPI/H2RA exposure was not associated with either ORR (OR 1.32, 95% CI 0.66–2.65) or AEs (OR 1.07, 95% CI 0.54–2.12) in multivariable analysis.
Conclusions:
Our results suggest that exposure to PPI/H2RA prior to ICIs does not adversely affect outcomes in HCC patients.
Antibiotic exposure has been associated with worse outcomes with immune checkpoint inhibitors (ICIs) in cancer patients, likely due to disruption of the gut microbiome. Other commonly prescribed medications, such as proton pump inhibitors (PPIs) and histamine-2-receptor antagonists (H2RAs), are also known to disrupt the microbiome, but data on their association with ICI outcomes are conflicting.
Methods:
We conducted a retrospective, multicenter, international cohort study including 314 hepatocellular carcinoma (HCC) patients treated with ICIs from 2017 to 2019 to assess the association between PPI or H2RA exposure (up to 30 days before ICI) and overall survival. Secondary outcomes included overall response rate (ORR) and development of any treatment-related adverse events (AEs).
Results:
Baseline PPI/H2RA exposure was not associated with overall survival in univariable (HR 1.01, 95% CI 0.75–1.35) or multivariable analysis (HR 0.98, 95% CI 0.71–1.36). Baseline PPI/H2RA exposure was not associated with either ORR (OR 1.32, 95% CI 0.66–2.65) or AEs (OR 1.07, 95% CI 0.54–2.12) in multivariable analysis.
Conclusions:
Our results suggest that exposure to PPI/H2RA prior to ICIs does not adversely affect outcomes in HCC patients.
Date Issued
2021-04-28
Date Acceptance
2021-03-22
Citation
Therapeutic Advances in Medical Oncology, 2021, 13, pp.1-14
ISSN
1758-8340
Publisher
SAGE Publications
Start Page
1
End Page
14
Journal / Book Title
Therapeutic Advances in Medical Oncology
Volume
13
Copyright Statement
© The Author(s), 2021.
Article reuse guidelines:
sagepub.com/journalspermissions. Creative Commons CC BY: This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/)
which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open
Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
Article reuse guidelines:
sagepub.com/journalspermissions. Creative Commons CC BY: This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/)
which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open
Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
License URL
Sponsor
Wellcome Trust
Identifier
https://journals.sagepub.com/doi/full/10.1177/17588359211010937
Grant Number
204834/Z/16/Z
Publication Status
Published
Date Publish Online
2021-04-28