Reply to Li, A.-H.; Chiu, Y.-L. Drug–Drug Interactions, Medication Adherence, and Stroke Should Be Considered When Approaching the Impact of Acid Suppression Therapy on Chronic Kidney Disease Patients. Comment on “Chen et al. Impact of Acid Suppression Therapy on Renal and Survival Outcomes in Patients with Chronic Kidney Disease: A Taiwanese Nationwide Cohort Study. J. Clin. Med. 2022, 11, 5612”
1
Division of Nephrology, Department of Internal Medicine, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi 622, Taiwan
2
School of Medicine, Tzu Chi University, Hualien 970, Taiwan
3
Department of Radiation Oncology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi 622, Taiwan
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
J. Clin. Med. 2023, 12(1), 171; https://doi.org/10.3390/jcm12010171
Submission received: 5 December 2022
/
Accepted: 21 December 2022
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Published: 26 December 2022
(This article belongs to the Section Nephrology & Urology)
We thank Li and colleagues for their insightful comments [1] on our recent work [2] regarding the association of acid suppression therapy with renal and survival outcomes in patients with chronic kidney disease (CKD). In response to their suggestions, we include here two important comorbidities (cerebrovascular disease and malignancy) into the multivariate analysis, which was considered as the leading causes of death among non-dialysis-dependent CKD patients followed in a large healthcare system [3]. We also considered proton pump inhibitor (PPI)–clopidogrel drug–drug interaction in the multivariate analysis because the use of concomitant PPI, which can inhibit cytochrome P450, may attenuate the effectiveness of clopidogrel and increase potential for adverse cardiovascular events [4].
Table 1 shows the percentage of cerebrovascular disease, malignancy, and clopidogrel. Table 2 shows sensitivity analysis when adjusting cerebrovascular disease, malignancy, and PPI–clopidogrel interaction in the original multivariate regression model. The association between H2RA and lower risks of ESRD and overall mortality, as well as between PPI and higher overall mortality, remained significantly consistent. We further compared the risk magnitude of overall mortality across different regression models in the PPI cohort (Table 3) and found the hazard magnitude remained consistent and seemed to be independent of PPI–clopidogrel interaction. This finding was consistent with previous two meta-analyses [5,6] of patients receiving clopidogrel, indicating that concomitant PPI use did not influence overall mortality. Another population-based cohort study in Denmark [4] of 13,001 patients with coronary stent implantation reported that PPI use did not modify the protective effect of clopidogrel, despite the production of a statistically non-significant interaction effect, and concomitant use was not associated with major adverse cardiovascular events. Moreover, two cohort studies [7,8] investigating risk of death among PPI users also did not yet consider PPI–clopidogrel interaction in the analysis. Nevertheless, caution is still warranted when using PPI and clopidogrel concomitantly.
Author Contributions
Y.-C.C. designed the research; B.-H.Y. performed the statistical analysis; Y.-C.C. and B.-H.Y. wrote the paper; Y.-C.C., B.-H.Y. and W.-Y.C. analyzed the data; Y.-C.C. supervised the study. All authors have read and agreed to the published version of the manuscript.
Funding
This study was funded by the Buddhist Dalin Tzu Chi Hospital (DTCRD107(2)-E-02).
Conflicts of Interest
The authors declare no conflict of interest.
References
- Li, A.-H.; Chiu, Y.-L. Drug–Drug Interactions, Medication Adherence, and Stroke Should Be Considered When Approaching the Impact of Acid Suppression Therapy on Chronic Kidney Disease Patients. Comment on Chen et al. Impact of Acid Suppression Therapy on Renal and Survival Outcomes in Patients with Chronic Kidney Disease: A Taiwanese Nationwide Cohort Study. J. Clin. Med. 2022, 11, 5612. J. Clin. Med. 2023, 12, 72. [Google Scholar] [CrossRef]
- Chen, Y.-C.; Chen, Y.-C.; Chiou, W.-Y.; Yu, B.-H. Impact of acid suppression therapy on renal and survival outcomes in patients with chronic kidney disease: A Taiwanese nationwide cohort study. J. Clin. Med. 2022, 11, 5612. [Google Scholar] [CrossRef] [PubMed]
- Navaneethan, S.D.; Schold, J.D.; Arrigain, S.; Jolly, S.E.; Nally, J.V., Jr. Cause-specific deaths in non-dialysis-dependent CKD. J. Am. Soc. Nephrol. 2015, 26, 2512–2520. [Google Scholar] [CrossRef] [PubMed] [Green Version]
- Schmidt, M.; Johansen, M.B.; Robertson, D.J.; Maeng, M.; Kaltoft, A.; Jensen, L.O.; Tilsted, H.H.; Bøtker, H.E.; Sørensen, H.T.; Baron, J.A. Concomitant use of clopidogrel and proton pump inhibitors is not associated with major adverse cardiovascular events following coronary stent implantation. Aliment. Pharmacol. Ther. 2012, 35, 165–174. [Google Scholar] [CrossRef] [PubMed]
- Kwok, C.S.; Loke, Y.K. Meta-analysis: The effects of proton pump inhibitors on cardiovascular events and mortality in patients receiving clopidogrel. Aliment. Pharmacol. Ther. 2010, 31, 810–823. [Google Scholar] [CrossRef] [PubMed]
- Siller-Matula, J.M.; Jilma, B.; Schrör, K.; Christ, G.; Huber, K. Effect of proton pump inhibitors on clinical outcome in patients treated with clopidogrel: A systematic review and meta-analysis. J. Thromb. Haemost. 2010, 8, 2624–2641. [Google Scholar] [CrossRef] [PubMed]
- Xie, Y.; Bowe, B.; Li, T.; Xian, H.; Yan, Y.; Al-Aly, Z. Risk of death among users of proton pump inhibitors: A longitudinal observational cohort study of United States veterans. BMJ. Open. 2017, 7, e015735. [Google Scholar] [CrossRef] [PubMed] [Green Version]
- Xie, Y.; Bowe, B.; Yan, Y.; Xian, H.; Li, T.; Al-Aly, Z. Estimates of all cause mortality and cause specific mortality associated with proton pump inhibitors among US veterans: Cohort study. BMJ 2019, 365, l1580. [Google Scholar] [CrossRef] [PubMed]
Table 1.
Adding two comorbidities and one confounding drug in addition to baseline characteristics shown in the original Table 1 †.
Table 1.
Adding two comorbidities and one confounding drug in addition to baseline characteristics shown in the original Table 1 †.
| Overall CKD Patients (n = 102,802) | Propensity-Matched CKD Patients (n = 13,083) | |||||||
|---|---|---|---|---|---|---|---|---|
| PPI Cohort | H2RA Cohort | Control | PPI Cohort | H2RA Cohort | Control | |||
| Variables | (n = 7121) N (%) | (n = 48,609) N (%) | (n = 47,072) N (%) | p-value | (n = 4361) N (%) | (n = 4361) N (%) | (n = 4361) N (%) | p-value |
| Comorbidities | ||||||||
| Cerebrovascular disease | 708 (9.9) | 1957 (4) | 2198 (4.7) | <0.0001 | 269 (6.2) | 236 (5.4) | 234 (5.4) | 0.19 |
| Malignancy | 793 (11.1) | 4277 (8.8) | 3748 (8.0) | <0.0001 | 438 (10) | 291 (6.7) | 332 (7/6) | <0.0001 |
| Confounding drugs | ||||||||
| Clopidogrel | 985 (13.8) | 2655 (5.5) | 1349 (2.9) | <0.0001 | 433 (9.9) | 256 (5.9) | 164 (3.8) | <0.0001 |
Abbreviations: CKD, chronic kidney disease; PPI, proton pump inhibitor; H2RA, H2-receptor antagonist; NSAID, nonsteroid anti-inflammatory drug; ACEI/ARB, angiotensin-converting enzyme inhibitor/angiotensin receptor blocker. † Reference 2: J Clin Med, 2022, 11:5612.
Table 2.
Sensitivity analysis: Adjusted hazard ratio (aHR) for end-stage renal disease (ESRD) and overall mortality in three cohorts.
Table 2.
Sensitivity analysis: Adjusted hazard ratio (aHR) for end-stage renal disease (ESRD) and overall mortality in three cohorts.
| Outcome | aHR | 95% Confidence Interval | p-Value |
|---|---|---|---|
| ESRD * | |||
| Control (n = 4361) | 1.00 | Reference | |
| PPI cohort (n = 4361) | 1.16 | 0.92–1.47 | 0.22 |
| H2RA cohort (n = 4361) | 0.40 | 0.30–0.53 | <0.0001 |
| Overall mortality # | |||
| Control (n = 4361) | 1.00 | Reference | |
| PPI cohort (n = 4361) | 1.83 | 1.64–2.03 | <0.0001 |
| H2RA cohort (n = 4361) | 0.64 | 0.57–0.72 | <0.0001 |
Abbreviations: the same as Table 1. * Adjusted for all covariates (age per year, sex, five original comorbidities [diabetes, coronary heart disease, hypertension, acid peptic disease, and chronic liver disease], two new comorbidities [cerebrovascular disease and malignancy], number of medical visits, NSAID, ACEI/ARB, and PPIxclopidogrel interaction term) and competing mortality. # Adjusted for all covariates (age per year, sex, five original comorbidities [diabetes, coronary heart disease, hypertension, acid peptic disease, and chronic liver disease], two new comorbidities [cerebrovascular disease and malignancy], number of medical visits, NSAID, ACEI/ARB, and clopidogrelxPPI interaction term).
Table 3.
Compare the risk magnitude of overall mortality across different regression models in the PPI cohort.
Table 3.
Compare the risk magnitude of overall mortality across different regression models in the PPI cohort.
| PPI Cohort | |||
|---|---|---|---|
| aHR | 95% Confidence Interval | p-Value | |
| Model 1: original covariates (age per year, sex, five original comorbidities, number of medical visits, NSAID, and ACEI/ARB) | 1.83 | 1.65–2.03 | <0.0001 |
| Model 2: model 1 + adding two comorbidities (cerebrovascular disease, malignancy) | 1.81 | 1.63–2.01 | <0.0001 |
| Model 3: model 1 + adding PPIxclopidogrel interaction term | 1.84 | 1.65–2.04 | <0.0001 |
| Model 4: model 1 + model 2 + model 3 | 1.83 | 1.64–2.03 | <0.0001 |
| Model 5: model 1 + model 4 + clopidogrel | 1.87 | 1.68–2.08 | <0.0001 |
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Chen, Y.-C.; Yu, B.-H.; Chiou, W.-Y. Reply to Li, A.-H.; Chiu, Y.-L. Drug–Drug Interactions, Medication Adherence, and Stroke Should Be Considered When Approaching the Impact of Acid Suppression Therapy on Chronic Kidney Disease Patients. Comment on “Chen et al. Impact of Acid Suppression Therapy on Renal and Survival Outcomes in Patients with Chronic Kidney Disease: A Taiwanese Nationwide Cohort Study. J. Clin. Med. 2022, 11, 5612”. J. Clin. Med. 2023, 12, 171. https://doi.org/10.3390/jcm12010171
AMA Style
Chen Y-C, Yu B-H, Chiou W-Y. Reply to Li, A.-H.; Chiu, Y.-L. Drug–Drug Interactions, Medication Adherence, and Stroke Should Be Considered When Approaching the Impact of Acid Suppression Therapy on Chronic Kidney Disease Patients. Comment on “Chen et al. Impact of Acid Suppression Therapy on Renal and Survival Outcomes in Patients with Chronic Kidney Disease: A Taiwanese Nationwide Cohort Study. J. Clin. Med. 2022, 11, 5612”. Journal of Clinical Medicine. 2023; 12(1):171. https://doi.org/10.3390/jcm12010171
Chicago/Turabian StyleChen, Yi-Chun, Ben-Hui Yu, and Wen-Yen Chiou. 2023. "Reply to Li, A.-H.; Chiu, Y.-L. Drug–Drug Interactions, Medication Adherence, and Stroke Should Be Considered When Approaching the Impact of Acid Suppression Therapy on Chronic Kidney Disease Patients. Comment on “Chen et al. Impact of Acid Suppression Therapy on Renal and Survival Outcomes in Patients with Chronic Kidney Disease: A Taiwanese Nationwide Cohort Study. J. Clin. Med. 2022, 11, 5612”" Journal of Clinical Medicine 12, no. 1: 171. https://doi.org/10.3390/jcm12010171
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