1
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Costigan C, O'Sullivan AM, O'Connell J, Sengupta S, Butler T, Molloy S, O'Hara FJ, Ryan B, Breslin N, O'Donnell S, O'Connor A, Smith S, McNamara D. Helicobacter pylori: High dose amoxicillin does not improve primary or secondary eradication rates in an Irish cohort. World J Clin Cases 2024; 12:2773-2779. [PMID: 38899284 PMCID: PMC11185322 DOI: 10.12998/wjcc.v12.i16.2773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/08/2024] [Accepted: 04/07/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Helicobacter pylori (H. pylori) eradication rates have fallen globally, likely in large part due to increasing antibiotic resistance to traditional therapy. In areas of high clarithromycin and metronidazole resistance such as ours, Maastricht VI guidelines suggest high dose amoxicillin dual therapy (HDADT) can be considered, subject to evidence for local efficacy. In this study we assess efficacy of HDADT therapy for H. pylori eradication in an Irish cohort. AIM To assess the efficacy of HDADT therapy for H. pylori eradication in an Irish cohort as both first line, and subsequent therapy for patients diagnosed with H. pylori. METHODS All patients testing positive for H. pylori in a tertiary centre were treated prospectively with HDADT (amoxicillin 1 g tid and esomeprazole 40 mg bid × 14 d) over a period of 8 months. Eradication was confirmed with Urea Breath Test at least 4 wk after cessation of therapy. A delta-over-baseline > 4% was considered positive. Patient demographics and treatment outcomes were recorded, analysed and controlled for basic demographics and prior H. pylori treatment. RESULTS One hundred and ninety-eight patients were identified with H. pylori infection, 10 patients were excluded due to penicillin allergy and 38 patients refused follow up testing. In all 139 were included in the analysis, 55% (n = 76) were female, mean age was 46.6 years. Overall, 93 (67%) of patients were treatment-naïve and 46 (33%) had received at least one previous course of treatment. The groups were statistically similar. Self-reported compliance with HDADT was 97%, mild side-effects occurred in 7%. There were no serious adverse drug reactions. Overall the eradication rate for our cohort was 56% (78/139). Eradication rates were worse for those with previous treatment [43% (20/46) vs 62% (58/93), P = 0.0458, odds ratio = 2.15]. Age and Gender had no effect on eradication status. CONCLUSION Overall eradication rates with HDADT were disappointing. Despite being a simple and possibly better tolerated regime, these results do not support its routine use in a high dual resistance country. Further investigation of other regimens to achieve the > 90% eradication target is needed.
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Affiliation(s)
- Conor Costigan
- Trinity Academic Gastroenterology Group, School of Medicine-Trinity College Dublin, Dublin D2, Ireland
- Department of Gastroenterology, Tallaght University Hospital, Dublin D24 NR0A, Ireland
| | - Aoife M O'Sullivan
- Department of Gastroenterology, Tallaght University Hospital, Dublin D24 NR0A, Ireland
| | - Jim O'Connell
- Department of Gastroenterology, Tallaght University Hospital, Dublin D24 NR0A, Ireland
| | - Shreyashee Sengupta
- Department of Gastroenterology, Tallaght University Hospital, Dublin D24 NR0A, Ireland
| | - Thomas Butler
- Trinity Academic Gastroenterology Group, School of Medicine-Trinity College Dublin, Dublin D2, Ireland
| | - Stephen Molloy
- Trinity Academic Gastroenterology Group, School of Medicine-Trinity College Dublin, Dublin D2, Ireland
| | - Fintan John O'Hara
- Department of Gastroenterology, Tallaght University Hospital, Dublin D24 NR0A, Ireland
| | - Barbara Ryan
- Department of Gastroenterology, Tallaght University Hospital, Dublin D24 NR0A, Ireland
| | - Niall Breslin
- Department of Gastroenterology, Tallaght University Hospital, Dublin D24 NR0A, Ireland
| | - Sarah O'Donnell
- Department of Gastroenterology, Tallaght University Hospital, Dublin D24 NR0A, Ireland
| | - Anthony O'Connor
- Department of Gastroenterology, Tallaght University Hospital, Dublin D24 NR0A, Ireland
| | - Sinead Smith
- Trinity Academic Gastroenterology Group, School of Medicine-Trinity College Dublin, Dublin D2, Ireland
| | - Deirdre McNamara
- Trinity Academic Gastroenterology Group, School of Medicine-Trinity College Dublin, Dublin D2, Ireland
- Department of Gastroenterology, Tallaght University Hospital, Dublin D24 NR0A, Ireland
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2
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Fischbach W, Bornschein J, Hoffmann JC, Koletzko S, Link A, Macke L, Malfertheiner P, Schütte K, Selgrad DM, Suerbaum S, Schulz C. Update S2k-Guideline Helicobacter pylori and gastroduodenal ulcer disease of the German Society of Gastroenterology, Digestive and Metabolic Diseases (DGVS). ZEITSCHRIFT FUR GASTROENTEROLOGIE 2024; 62:261-321. [PMID: 38364851 DOI: 10.1055/a-2181-2225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Affiliation(s)
| | - Jan Bornschein
- Translational Gastroenterology Unit John, John Radcliffe Hospital Oxford University Hospitals, Oxford, United Kingdom
| | - Jörg C Hoffmann
- Medizinische Klinik I, St. Marien- und St. Annastiftskrankenhaus, Ludwigshafen, Deutschland
| | - Sibylle Koletzko
- Kinderklinik und Kinderpoliklinik im Dr. von Haunerschen Kinderspital, LMU-Klinikum Munich, Munich, Deutschland
- Department of Paediatrics, Gastroenterology and Nutrition, School of Medicine Collegium Medicum University of Warmia and Mazury, 10-719 Olsztyn, Poland
| | - Alexander Link
- Klinik für Gastroenterologie, Hepatologie und Infektiologie, Universitätsklinikum Magdeburg, Magdeburg, Deutschland
| | - Lukas Macke
- Medizinische Klinik und Poliklinik II Campus Großhadern, Universitätsklinikum Munich, Munich, Deutschland
- Deutsches Zentrum für Infektionsforschung, Standort Munich, Munich, Deutschland
| | - Peter Malfertheiner
- Klinik für Gastroenterologie, Hepatologie und Infektiologie, Universitätsklinikum Magdeburg, Magdeburg, Deutschland
- Medizinische Klinik und Poliklinik II Campus Großhadern, Universitätsklinikum Munich, Munich, Deutschland
| | - Kerstin Schütte
- Klinik für Allgemeine Innere Medizin und Gastroenterologie, Niels-Stensen-Kliniken Marienhospital Osnabrück, Osnabrück, Deutschland
| | - Dieter-Michael Selgrad
- Medizinische Klinik Gastroenterologie und Onkologie, Klinikum Fürstenfeldbruck, Fürstenfeldbruck, Deutschland
- Klinik für Innere Medizin 1, Universitätsklinikum Regensburg, Regensburg, Deutschland
| | - Sebastian Suerbaum
- Universität Munich, Max von Pettenkofer-Institut für Hygiene und Medizinische Mikrobiologie, Munich, Deutschland
- Nationales Referenzzentrum Helicobacter pylori, Pettenkoferstr. 9a, 80336 Munich, Deutschland
- Deutsches Zentrum für Infektionsforschung, Standort Munich, Munich, Deutschland
| | - Christian Schulz
- Medizinische Klinik und Poliklinik II Campus Großhadern, Universitätsklinikum Munich, Munich, Deutschland
- Deutsches Zentrum für Infektionsforschung, Standort Munich, Munich, Deutschland
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3
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Cho CK, Ko E, Mo JY, Kang P, Jang CG, Lee SY, Lee YJ, Bae JW, Choi CI. PBPK modeling to predict the pharmacokinetics of pantoprazole in different CYP2C19 genotypes. Arch Pharm Res 2024; 47:82-94. [PMID: 38150171 DOI: 10.1007/s12272-023-01478-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 12/18/2023] [Indexed: 12/28/2023]
Abstract
Pantoprazole is used to treat gastroesophageal reflux disease (GERD), maintain healing of erosive esophagitis (EE), and control symptoms related to Zollinger-Ellison syndrome (ZES). Pantoprazole is mainly metabolized by cytochrome P450 (CYP) 2C19, converting to 4'-demethyl pantoprazole. CYP2C19 is a genetically polymorphic enzyme, and the genetic polymorphism affects the pharmacokinetics and/or pharmacodynamics of pantoprazole. In this study, we aimed to establish the physiologically based pharmacokinetic (PBPK) model to predict the pharmacokinetics of pantoprazole in populations with various CYP2C19 metabolic activities. A comprehensive investigation of previous reports and drug databases was conducted to collect the clinical pharmacogenomic data, physicochemical data, and disposition properties of pantoprazole, and the collected data were used for model establishment. The model was evaluated by comparing the predicted plasma concentration-time profiles and/or pharmacokinetic parameters (AUC and Cmax) with the clinical observation results. The predicted plasma concentration-time profiles in different CYP2C19 phenotypes properly captured the observed profiles. All fold error values for AUC and Cmax were included in the two-fold range. Consequently, the minimal PBPK model for pantoprazole related to CYP2C19 genetic polymorphism was properly established and it can predict the pharmacokinetics of pantoprazole in different CYP2C19 phenotypes. The present model can broaden the insight into the individualized pharmacotherapy for pantoprazole.
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Affiliation(s)
- Chang-Keun Cho
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Eunvin Ko
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Ju Yeon Mo
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Pureum Kang
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Choon-Gon Jang
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Seok-Yong Lee
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Yun Jeong Lee
- College of Pharmacy, Dankook University, Cheonan, 31116, Republic of Korea
| | - Jung-Woo Bae
- College of Pharmacy, Keimyung University, Daegu, 42601, Republic of Korea
| | - Chang-Ik Choi
- College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea.
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4
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Eken E, Estores DS, Cicali EJ, Wiisanen KK, Johnson JA. A Pharmacogenetics-Based Approach to Managing Gastroesophageal Reflux Disease: Current Perspectives and Future Steps. Pharmgenomics Pers Med 2023; 16:645-664. [PMID: 37383676 PMCID: PMC10296543 DOI: 10.2147/pgpm.s371994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 05/18/2023] [Indexed: 06/30/2023] Open
Abstract
Proton pump inhibitors (PPIs) are commonly used medications to treat acid-related conditions, including gastro-esophageal reflux disease (GERD). Gastroenterology guidelines mention the importance of CYP2C19 in PPI metabolism and the influence of CYP2C19 genetic variations on variable responses to PPIs, but do not currently recommend the genotyping of CYP2C19 prior to prescribing PPIs. There are strong data to support the influence of CYP2C19 genetic variations on the pharmacokinetics of PPIs and clinical outcomes. Existing pharmacogenetic guideline recommendations for dose increases focus on H. pylori and erosive esophagitis indications, but PPIs are also the main therapy for treating GERD. Recent data suggest GERD patients being treated with a PPI may also benefit from genotype-guided dosing. We summarize the literature supporting this contention and highlight future directions for improved management of patients with GERD through precision medicine approaches.
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Affiliation(s)
- Eda Eken
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL, USA
- Center for Pharmacogenomics and Precision Medicine, University of Florida, Gainesville, FL, USA
| | - David S Estores
- Division of Gastroenterology, Hepatology, and Nutrition, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Emily J Cicali
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL, USA
- Center for Pharmacogenomics and Precision Medicine, University of Florida, Gainesville, FL, USA
| | - Kristin K Wiisanen
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL, USA
- Center for Pharmacogenomics and Precision Medicine, University of Florida, Gainesville, FL, USA
| | - Julie A Johnson
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Gainesville, FL, USA
- Center for Pharmacogenomics and Precision Medicine, University of Florida, Gainesville, FL, USA
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5
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Aktualisierte S2k-Leitlinie Helicobacter
pylori und gastroduodenale Ulkuskrankheit der Deutschen Gesellschaft für Gastroenterologie, Verdauungs- und Stoffwechselkrankheiten (DGVS) – Juli 2022 – AWMF-Registernummer: 021–001. ZEITSCHRIFT FUR GASTROENTEROLOGIE 2023; 61:544-606. [PMID: 37146633 DOI: 10.1055/a-1975-0414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
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6
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Le Thi TG, Werkstetter K, Kotilea K, Bontems P, Cabral J, Cilleruelo Pascual ML, Kori M, Barrio J, Homan M, Kalach N, Lima R, Tavares M, Urruzuno P, Misak Z, Urbonas V, Koletzko S, Sykora J, Miele E, Krahl A, Klemenak M, Papadopoulou A, Chiaro A, Ugras MK, de Laffolie J, Matusiewics K, Rea F, Casswall T, Roma E, Banoub H, Cseh A, Rogalidou M, Lopes AI. Management of Helicobacter pylori infection in paediatric patients in Europe: results from the EuroPedHp Registry. Infection 2022:10.1007/s15010-022-01948-y. [DOI: 10.1007/s15010-022-01948-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
Abstract
Purpose
The EuroPedHp-registry aims to monitor guideline-conform management, antibiotic resistance, and eradication success of 2-week triple therapy tailored to antibiotic susceptibility (TTT) in Helicobacter pylori-infected children.
Methods
From 2017 to 2020, 30 centres from 17 European countries reported anonymized demographic, clinical, antibiotic susceptibility, treatment, and follow-up data. Multivariable logistic regression identified factors associated with treatment failure.
Results
Of 1605 patients, 873 had follow-up data (53.2% female, median age 13.0 years, 7.5% with ulcer), thereof 741 (85%) treatment naïve (group A) and 132 (15%) after failed therapy (group B). Resistance to metronidazole was present in 21% (A: 17.7%, B: 40.2%), clarithromycin in 28.8% (A: 25%, B: 51.4%), and both in 7.1% (A: 3.8%, B: 26.5%). The majority received 2-week tailored triple therapy combining proton pump inhibitor (PPI), amoxicillin with clarithromycin (PAC) or metronidazole (PAM). Dosing was lower than recommended for PPI (A: 49%, B: 41%) and amoxicillin (A: 6%, B: 56%). In treatment naïve patients, eradication reached 90% (n = 503, 95% CI 87–93%) and 93% in compliant children (n = 447, 95% CI 90–95%). Tailored triple therapy cured 59% patients after failed therapy (n = 69, 95% CI 48–71%). Treatment failure was associated with PAM in single clarithromycin resistance (OR = 2.47, 95% CI 1.10–5.53), with PAC in single metronidazole resistance (OR = 3.44, 95% CI 1.47–8.08), and with low compliance (OR = 5.89, 95% CI 2.49–13.95).
Conclusions
Guideline-conform 2-weeks therapy with PPI, amoxicillin, clarithromycin or metronidazole tailored to antibiotic susceptibility achieves primary eradication of ≥ 90%. Higher failure rates in single-resistant strains despite tailored treatment indicate missed resistance by sampling error.
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7
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van Doorn L, Heersche N, de Man FM, de Bruijn P, Bijl I, Oomen-de Hoop E, Eskens FALM, van der Gaast A, Mathijssen RHJ, Bins S. Effect of the Proton Pump Inhibitor Esomeprazole on the Systemic Exposure of Capecitabine: Results of A Randomized Crossover Trial. Clin Pharmacol Ther 2021; 111:455-460. [PMID: 34656072 DOI: 10.1002/cpt.2444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 10/03/2021] [Indexed: 11/09/2022]
Abstract
Retrospective data suggest that gastric acid reduction by proton pump inhibitors (PPIs) impairs the dissolution and subsequent absorption of capecitabine, and thus potentially reduces the capecitabine exposure. Therefore, we examined prospectively the effect of esomeprazole on the pharmacokinetics of capecitabine. In this randomized crossover study, patients with cancer were assigned to 2 sequence groups, each consisting of 3 phases: capecitabine with esomeprazole administration 3 hours before (phase A), capecitabine alone (phase B), and capecitabine concomitant with cola and esomeprazole co-administration 3 hours before (phase C). The primary end point was the relative difference (RD) in exposure to capecitabine assessed by the area under the plasma concentration-time curve from zero to infinity (AUC0-inf ) and analyzed by a linear mixed effect model. Twenty-two evaluable patients were included in the analysis. After esomeprazole, there was a 18.9% increase in AUC0-inf of capecitabine (95% confidence interval (CI) -10.0% to 57.0%, P = 0.36). In addition, capecitabine half-life was significantly longer after esomeprazole (median 0.63 hours vs. 0.46 hours, P = 0.005). Concomitant cola did not completely reverse the effects observed after esomeprazole (RD 3.3% (95% CI -16.3 to 27.4%, P = 1.00). Capecitabine exposure is not negatively influenced by esomeprazole cotreatment. Therefore, altered capecitabine pharmacokinetics do not explain the assumed worse clinical outcome of PPI-cotreated patients with cancer.
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Affiliation(s)
- Leni van Doorn
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Niels Heersche
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Femke M de Man
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Peter de Bruijn
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Ivo Bijl
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Esther Oomen-de Hoop
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Ferry A L M Eskens
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Ate van der Gaast
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Ron H J Mathijssen
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Sander Bins
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
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8
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Douwes RM, Vinke JSJ, Gomes-Neto AW, Ayerdem G, van Hassel G, Berger SP, Touw DJ, Blokzijl H, Bakker SJL, de Borst MH, Eisenga MF. Type of proton-pump inhibitor and risk of iron deficiency in kidney transplant recipients - results from the TransplantLines Biobank and Cohort Study. Transpl Int 2021; 34:2305-2316. [PMID: 34519109 PMCID: PMC9293430 DOI: 10.1111/tri.14110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 08/16/2021] [Accepted: 09/03/2021] [Indexed: 12/16/2022]
Abstract
Proton‐pump inhibitors (PPIs) have been associated with iron deficiency (ID) in kidney transplant recipients (KTRs). Gastric acid plays a pivotal role in the intestinal absorption of non‐heme iron, but the pharmacodynamics of PPIs differs in potency of acid suppression. We hypothesized that the risk of ID might be lower in KTRs using a less potent PPI. In a cohort of 724 KTRs from the TransplantLines Biobank and Cohort Study (NCT03272841), PPI use was associated with ID [odds ratio (OR) 2.02; 95% CI 1.36–2.98]. Compared with no PPI use, the point estimate of the odds ratio for risk of ID for pantoprazole (OR 1.55; 95%CI 0.78–3.10) was lower than for esomeprazole and omeprazole (3.58; 95%CI 1.73–7.40 and 1.96; 95%CI 1.31–2.94, respectively). When comparing pantoprazole users with omeprazole users on an equipotent dose (≤20 omeprazole equivalents (OE)/day) omeprazole, but not pantoprazole was associated with ID, although the lack of a significant effect of pantoprazole on the risk of ID could be caused by a lack of power. Furthermore, risk of ID was higher among users of a high PPI dose (≥ 20 OE/day) and OE as continuous variable was also independently associated with ID, indicating that risk of ID is higher while using a more potent PPI. Further investigation seems warranted to confirm whether pantoprazole leads to less ID in KTRs.
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Affiliation(s)
- Rianne M Douwes
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Joanna Sophia J Vinke
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - António W Gomes-Neto
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Gizem Ayerdem
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Gaston van Hassel
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Stefan P Berger
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Daan J Touw
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Hans Blokzijl
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Stephan J L Bakker
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Martin H de Borst
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Michele F Eisenga
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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9
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Fu J, Sun CF, He HY, Ojha SC, Shi H, Deng CL, Sheng YJ. The effect of CYP2C19 gene polymorphism on the eradication rate of Helicobacter pylori by proton pump inhibitors-containing regimens in Asian populations: a meta-analysis. Pharmacogenomics 2021; 22:859-879. [PMID: 34414773 DOI: 10.2217/pgs-2020-0127] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Premise: The effects of proton pump inhibitors (PPI) depend on metabolic enzyme CYP2C19 that has different activity due to gene polymorphism. The purpose of this meta-analysis is to determine the potential effects of CYP2C19 polymorphism on the efficiency of PPI-based treatment. Materials & methods: The PubMed, EMBASE, Cochrane Library, etc. were searched for relevant articles published in English or Chinese from inception to 31 May 2020. Finally, 26 randomized controlled trials and 15 cohort studies met the inclusion criteria and used for the meta-analysis via STATA version 15. Results: Poor metabolizer (PM) genotype Helicobacter pylori eradication rates were highest for Asian individuals receiving triple or quadruple first-line therapy based on PPIs (p < 0.05). CYP2C19 polymorphism could influence H. pylori eradication rate only in Mainland China and Japan (p < 0.05). Conclusion: PM genotype facilitates the elimination of H. pylori in Asian populations. Rabeprazole-, esomeprazole- and pantoprazole-based eradication program was less affected by the CYP2C19 polymorphism.
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Affiliation(s)
- Juan Fu
- Department of Infectious Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Chang-Feng Sun
- Department of Infectious Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.,Department of Tuberculosis, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.,Infection & Immunity Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Hong-Yan He
- Experimental Teaching Center, School of Public Health of Southwest Medical University, Luzhou, 646000, China
| | - Suvash Chandra Ojha
- Department of Infectious Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.,Department of Tuberculosis, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.,Infection & Immunity Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Han Shi
- Department of Infectious Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Cun-Liang Deng
- Department of Infectious Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.,Department of Tuberculosis, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.,Infection & Immunity Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Yun-Jian Sheng
- Department of Infectious Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.,Department of Tuberculosis, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.,Infection & Immunity Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
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10
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Jeiziner C, Stäuble CK, Lampert ML, Hersberger KE, Meyer Zu Schwabedissen HE. Enriching Medication Review with a Pharmacogenetic Profile - A Case of Tamoxifen Adverse Drug Reactions. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2021; 14:279-286. [PMID: 33642872 PMCID: PMC7903951 DOI: 10.2147/pgpm.s285807] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 01/11/2021] [Indexed: 01/13/2023]
Abstract
Pharmacogenotyping is applied to determine the hereditable component of a patient's susceptibility to experience therapy failure and/or adverse drug reactions (ADRs). We present the case of a female patient diagnosed with breast cancer and treated with tamoxifen as recurrence therapy who experienced various ADRs. Pharmacogenotyping revealed variants in the cytochrome P450 (CYP) enzymes CYP2D6, CYP2C9, and CYP2C19. The observed genotype was associated with a risk for lower tamoxifen efficacy. Aside from the tamoxifen therapy, the comedication was reviewed for the influence of the patient’s pharmacogenetic profile. As a result of this pharmacist-led medication review with pharmacogenetic analyses, concrete genotype-driven recommendations for the treating gynecologist were compiled. This case revealed the added value of a large pharmacogenetic panel and the complexity of integrating a pharmacogenetic profile into a recommendation.
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Affiliation(s)
- Chiara Jeiziner
- Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Céline K Stäuble
- Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland.,Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Markus L Lampert
- Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Kurt E Hersberger
- Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
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11
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de Waal T, Rubbens J, Grimm M, Vandecaveye V, Tack J, Weitschies W, Brouwers J, Augustijns P. Exploring the Effect of Esomeprazole on Gastric and Duodenal Fluid Volumes and Absorption of Ritonavir. Pharmaceutics 2020; 12:pharmaceutics12070670. [PMID: 32708859 PMCID: PMC7408179 DOI: 10.3390/pharmaceutics12070670] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 07/07/2020] [Accepted: 07/13/2020] [Indexed: 02/07/2023] Open
Abstract
Proton-pump inhibitors (PPIs), frequently prescribed to lower gastric acid secretion, often exert an effect on the absorption of co-medicated drug products. A previous study showed decreased plasma levels of the lipophilic drug ritonavir after co-administration with the PPI Nexium (40 mg esomeprazole), even though duodenal concentrations were not affected. The present study explored if a PPI-induced decrease in gastrointestinal (GI) fluid volume might contribute to the reduced absorption of ritonavir. In an exploratory cross-over study, five volunteers were given a Norvir tablet (100 mg ritonavir) orally, once without PPI pre-treatment and once after a three-day pre-treatment with the PPI esomeprazole. Blood samples were collected for eight hours to assess ritonavir absorption and magnetic resonance imaging (MRI) was used to determine the gastric and duodenal fluid volumes during the first three hours after administration of the tablet. The results confirmed that PPI intake reduced ritonavir plasma concentrations by 40%. The gastric residual volume and gastric fluid volume decreased by 41% and 44% respectively, while the duodenal fluid volume was reduced by 33%. These data suggest that the PPI esomeprazole lowers the available fluid volume for dissolution, which may limit the amount of ritonavir that can be absorbed. Although additional factors may play a role, the effect of PPI intake on the GI fluid volume should be considered when simulating the absorption of poorly soluble drugs like ritonavir in real-life conditions.
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Affiliation(s)
- Tom de Waal
- Drug Delivery and Disposition, KU Leuven, Gasthuisberg O&N II, Herestraat 49—Box 921, 3000 Leuven, Belgium; (T.d.W.); (J.R.); (J.B.)
| | - Jari Rubbens
- Drug Delivery and Disposition, KU Leuven, Gasthuisberg O&N II, Herestraat 49—Box 921, 3000 Leuven, Belgium; (T.d.W.); (J.R.); (J.B.)
| | - Michael Grimm
- Center of Drug Absorption and Transport, Institute of Pharmacy, University of Greifswald, 17489 Greifswald, Germany; (M.G.); (W.W.)
| | | | - Jan Tack
- Translational Research Center for Gastrointestinal Disorders, TARGID, KU Leuven, 3000 Leuven, Belgium;
| | - Werner Weitschies
- Center of Drug Absorption and Transport, Institute of Pharmacy, University of Greifswald, 17489 Greifswald, Germany; (M.G.); (W.W.)
| | - Joachim Brouwers
- Drug Delivery and Disposition, KU Leuven, Gasthuisberg O&N II, Herestraat 49—Box 921, 3000 Leuven, Belgium; (T.d.W.); (J.R.); (J.B.)
| | - Patrick Augustijns
- Drug Delivery and Disposition, KU Leuven, Gasthuisberg O&N II, Herestraat 49—Box 921, 3000 Leuven, Belgium; (T.d.W.); (J.R.); (J.B.)
- Correspondence:
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12
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Jonaitis P, Jonaitis L, Kupcinskas J. Role of Genetic Polymorphisms of Cytochrome P450 2C19 in Pantoprazole Metabolism and Pantoprazole-based Helicobacter pylori Eradication Regimens. Curr Drug Metab 2020; 21:830-837. [PMID: 32407266 DOI: 10.2174/1389200221666200514081442] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/11/2020] [Accepted: 02/09/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Cytochrome P450 (CYP450) enzymes play an important role in the metabolism of 70-80% of the currently used medications, including proton pump inhibitors. There are some data analyzing the impact of gene polymorphisms of CYP450 enzymes on most widely used PPIs, such as omeprazole, however, the data on pantoprazole are highly lacking. OBJECTIVE To summarize the most recent publications and studies on the role of polymorphisms of the genes encoding CYP450 enzyme 2C19 in the metabolism of pantoprazole and pantoprazole based Helicobacter pylori eradication regimens. METHODS We performed a non-systematic search of the available literature on the selected topic. RESULTS AND CONCLUSION The data on cytochrome P450 gene polymorphisms and their role in pantoprazole metabolism and pantoprazole based Helicobacter pylori eradication remain conflicting. Individual differences in pantoprazole metabolism might be partly related to genetic polymorphisms of CYP450 enzymes. Most of the studies support the observation that cytochrome 2C19 polymorphisms have an impact on the pharmacokinetics of pantoprazole and its therapeutic effects: poor metabolizers of PPIs are more likely to have a better response to pantoprazole therapy and achieve better H. pylori eradication rates compared to rapid metabolizers. The determination of alleles that are associated with decreased (e.g., *2, *3 alleles) or increased (e.g., *17 allele) cytochrome 2C19 enzyme activity might be used as predictive factors for the potential of acid suppression and the success of Helicobacter pylori eradication. Overall, currently available data do not provide robust evidence, therefore, the application of genetic polymorphisms of cytochrome enzymes in clinical practice still cannot be recommended as routine practice for personalized pantoprazole prescription strategies.
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Affiliation(s)
- Paulius Jonaitis
- Faculty of Medicine, Medical Academy, Eiveniu str. 2 LT-50161, Kaunas, Lithuania
| | - Laimas Jonaitis
- Department of Gastroenterology, Lithuanian Eiveniu str. 2 LT-50161, Kaunas, Lithuania
| | - Juozas Kupcinskas
- Department of Gastroenterology, Lithuanian Eiveniu str. 2 LT-50161, Kaunas, Lithuania
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13
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Effects of genetic polymorphisms on the pharmacokinetics and pharmacodynamics of proton pump inhibitors. Pharmacol Res 2020; 152:104606. [DOI: 10.1016/j.phrs.2019.104606] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 12/13/2019] [Accepted: 12/13/2019] [Indexed: 02/06/2023]
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14
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Effect of proton pump inhibitors on mortality of cirrhotic patients with pneumonia. PLoS One 2019; 14:e0216041. [PMID: 31022265 PMCID: PMC6483244 DOI: 10.1371/journal.pone.0216041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 04/12/2019] [Indexed: 12/12/2022] Open
Abstract
Objective Pneumonia is life-threatening in patients with liver cirrhosis. Proton pump inhibitors (PPIs) may increase the risk of these patients developing pneumonia. However, whether PPIs increase mortality in patients with cirrhosis and pneumonia remain unknown. Methods We used the Taiwan National Health Insurance Database to enroll 1,201 cirrhotic patients with pneumonia without active gastrointestinal bleeding who were receiving PPIs and were hospitalized between January 1, 2010 and December 31, 2013. A one-to-three propensity score match was performed to select a comparison group based on age, gender, and comorbid disorders. Results The overall 30-day and 90-day all-cause mortality rates were 13.7% and 26.9% in the PPI group, and 14.3% and 25.1% in the non-PPI group, respectively. After Cox regression model adjusting for age, gender, and comorbid disorders, the hazard ratios of the effect of PPIs on 30-day and 30 to 90-day mortality were 0.94 (95% Confidence Interval [CI], 0.79–1.12, P = 0.468) and 1.26 (95% CI, 1.05–1.52; P = 0.013), respectively. Conclusions PPIs were not associated with 30-day mortality among cirrhotic patients with pneumonia but not active gastrointestinal bleeding. However, prolonged PPI therapy may be associated with higher mortality.
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Mir O, Touati N, Lia M, Litière S, Le Cesne A, Sleijfer S, Blay JY, Leahy M, Young R, Mathijssen RHJ, Van Erp NP, Gelderblom H, Van der Graaf WT, Gronchi A. Impact of Concomitant Administration of Gastric Acid-Suppressive Agents and Pazopanib on Outcomes in Soft-Tissue Sarcoma Patients Treated within the EORTC 62043/62072 Trials. Clin Cancer Res 2019; 25:1479-1485. [PMID: 30765389 DOI: 10.1158/1078-0432.ccr-18-2748] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 11/05/2018] [Accepted: 12/14/2018] [Indexed: 11/16/2022]
Abstract
PURPOSE Pazopanib is active in soft-tissue sarcoma (STS). Because pazopanib absorption is pH-dependent, coadministration with gastric acid-suppressive (GAS) agents such as proton pump inhibitors could affect exposure of pazopanib, and thereby its therapeutic effects. PATIENTS AND METHODS The EORTC 62043 and 62072 were single-arm phase II and placebo-controlled phase III studies, respectively, of pazopanib in advanced STS. We first compared the outcome of patients treated with pazopanib with or without GAS agents for ≥80% of treatment duration, and subsequently using various thresholds. The impact of concomitant GAS therapy was assessed on progression-free survival (PFS) and overall survival (OS) using multivariate Cox models, exploring and comparing also the potential effect on placebo-treated patients. RESULTS Of 333 eligible patients, 59 (17.7%) received concomitant GAS therapy for >80% of pazopanib treatment duration. Median PFS was shorter in GAS therapy users versus nonusers: 2.8 vs. 4.6 months, respectively [HR, 1.49; 95% confidence interval (CI), 1.11-1.99; P = 0.01]. Concomitant administration of GAS therapy was also associated with a shorter median OS: 8.0 vs. 12.6 months (HR, 1.81; 95% CI, 1.31-2.49; P < 0.01). The longer the overlapping use of GAS agents and pazopanib, the worse the outcome with pazopanib. These effects were not observed in placebo-treated patients (HR, 0.82; 95% CI, 0.51-1.34; P = 0.43 for PFS and HR, 0.84; 95% CI, 0.48-1.48; P = 0.54 for OS). CONCLUSIONS Coadministration of long-term GAS therapy with pazopanib was associated with significantly shortened PFS and OS. Withdrawal of GAS agents must be considered whenever possible. Therapeutic drug monitoring of pazopanib plasma concentrations may be helpful for patients on pazopanib and GAS therapy.
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Affiliation(s)
- Olivier Mir
- Gustave Roussy, Sarcoma Group, Villejuif, France.
| | - Nathan Touati
- European Organization for Research and Treatment of Cancer, Brussels, Belgium
| | - Michela Lia
- European Organization for Research and Treatment of Cancer, Brussels, Belgium
| | - Saskia Litière
- European Organization for Research and Treatment of Cancer, Brussels, Belgium
| | | | | | | | - Michael Leahy
- The Christie NHS Foundation Trust, Manchester, United Kingdom
| | - Robin Young
- Weston Park Hospital, Sheffield, United Kingdom
| | | | | | | | - Winette T Van der Graaf
- Radboud University Medical Centre, Nijmegen, the Netherlands.,The Institute of Cancer Research and the Royal Marsden NHS Foundation Trust, London, United Kingdom
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16
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Hussaarts KGAM, Veerman GDM, Jansman FGA, van Gelder T, Mathijssen RHJ, van Leeuwen RWF. Clinically relevant drug interactions with multikinase inhibitors: a review. Ther Adv Med Oncol 2019; 11:1758835918818347. [PMID: 30643582 PMCID: PMC6322107 DOI: 10.1177/1758835918818347] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/17/2018] [Indexed: 12/11/2022] Open
Abstract
Multikinase inhibitors (MKIs), including the tyrosine kinase inhibitors (TKIs), have rapidly become an established factor in daily (hemato)-oncology practice. Although the oral route of administration offers improved flexibility and convenience for the patient, challenges arise in the use of MKIs. As MKIs are prescribed extensively, patients are at increased risk for (severe) drug–drug interactions (DDIs). As a result of these DDIs, plasma pharmacokinetics of MKIs may vary significantly, thereby leading to high interpatient variability and subsequent risk for increased toxicity or a diminished therapeutic outcome. Most clinically relevant DDIs with MKIs concern altered absorption and metabolism. The absorption of MKIs may be decreased by concomitant use of gastric acid-suppressive agents (e.g. proton pump inhibitors) as many kinase inhibitors show pH-dependent solubility. In addition, DDIs concerning drug (uptake and efflux) transporters may be of significant clinical relevance during MKI therapy. Furthermore, since many MKIs are substrates for cytochrome P450 isoenzymes (CYPs), induction or inhibition with strong CYP inhibitors or inducers may lead to significant alterations in MKI exposure. In conclusion, DDIs are of major concern during MKI therapy and need to be monitored closely in clinical practice. Based on the current knowledge and available literature, practical recommendations for management of these DDIs in clinical practice are presented in this review.
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Affiliation(s)
- Koen G A M Hussaarts
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Dr. Molewaterplein 40, 3015 GD Rotterdam, The Netherlands
| | - G D Marijn Veerman
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Frank G A Jansman
- Department of Clinical Pharmacy, Deventer Hospital, Deventer, The Netherlands
| | - Teun van Gelder
- Department of Hospital Pharmacy, Erasmus MC, Rotterdam, The Netherlands
| | - Ron H J Mathijssen
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
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17
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Hung TH, Tseng CW, Lee HF, Tsai CC, Tsai CC. Effect of Proton Pump Inhibitors on Mortality in Patients with Cirrhosis and Spontaneous Bacterial Peritonitis. Ann Hepatol 2018; 17:933-939. [PMID: 30600287 DOI: 10.5604/01.3001.0012.7193] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND AIM Spontaneous bacterial peritonitis (SBP) is a life-threatening infection in patients with cirrhosis. However, it is unknown whether patients with SBP and cirrhosis who do not have active gastrointestinal bleeding have a poorer prognosis if treated with proton pump inhibitors (PPI). MATERIAL AND METHODS We used the Taiwan National Health Insurance Database to identify 858 patients with SBP and cirrhosis who were administered PPIs and hospitalized between January 1, 2010, and December 31, 2013. One-to-two propensity score matching was performed to select a comparison group based on age, gender, and comorbidities. All patients obtained follow-up for 1 year. RESULTS The overall 30-day, 90-day, and 1-year mortality was 27.9%, 49.0%, and 73.7%, respectively, in the PPI group and 25.6%, 43.8%, and 67.2%, respectively, in the non-PPI group. After adjusting the Cox regression model for age, gender, and comorbidities, the hazard ratios for PPIs regarding 30-day, 30- to 90-day, and 90-day to 1-year mortality were 1.074 (95% CI 0.917-1.257, P = 0.377), 1.390 (95% CI 1.154-1.673, P = 0.001), and 1.297 (95% CI 1.099- 1.531, P = 0.002), respectively. CONCLUSIONS PPIs did not increase the short-term mortality of patients with SBP and cirrosis who did not have active gastrointestinal bleeding, but PPIs increased the long-term mortality risk. For these patients, physicians should discontinue PPIs as early as possible.
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Affiliation(s)
- Tsung-Hsing Hung
- Division of Gastroenterology. Department of Medicine, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan
| | - Chih-Wei Tseng
- Division of Gastroenterology. Department of Medicine, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan
| | - Hsing-Feng Lee
- Division of Gastroenterology. Department of Medicine, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan
| | - Chih-Chun Tsai
- Department of Mathematics, Tamkang University, Tamsui, Taiwan
| | - Chen-Chi Tsai
- School of Medicine, Tzu Chi University, Hualien, Taiwan
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18
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Graham DY, Tansel A. Interchangeable Use of Proton Pump Inhibitors Based on Relative Potency. Clin Gastroenterol Hepatol 2018; 16:800-808.e7. [PMID: 28964908 PMCID: PMC6913203 DOI: 10.1016/j.cgh.2017.09.033] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 08/29/2017] [Accepted: 09/15/2017] [Indexed: 12/25/2022]
Abstract
Although proton pump inhibitors (PPIs) are widely used, their relative potency and ideal dosing regimens remain unclear. We analyzed data from randomized clinical trials that performed pH testing in patients receiving solid-dose PPI formulations (omeprazole, esomeprazole, lansoprazole, pantoprazole, rabeprazole) for a minimum of 5 days. We used omeprazole equivalency and the surrogate biomarker, percentage time pH > 4 over a 24-hour period (pH4time), to compare PPI effectiveness for different PPIs given once, twice, or 3 times daily. We found that increasing strength of once-daily PPIs (9-64 mg omeprazole equivalents) increased pH4time linearly from approximately 10.0 to 15.6 hours; higher doses produced no further increase in pH4time. Increasing the frequency to twice-daily PPI increased pH4time linearly, from approximately 15.8 to 21.0 hours. Three-times daily PPIs performed similarly to twice-daily PPIs. The costs of PPIs varied greatly, but the cost variation was not directly related to potency. We conclude that PPIs can be used interchangeably based on potency. Using twice-daily PPIs is more effective in increasing efficacy increasing once-daily PPI dosage. Omeprazole and lansoprazole (30 mg) and 20 mg of esomeprazole rabeprazole are functionally equivalent.
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Affiliation(s)
- David Y Graham
- Department of Medicine, Michael E. DeBakey VA Medical Center, Baylor College of Medicine, Houston, Texas.
| | - Aylin Tansel
- Department of Medicine, Michael E. DeBakey VA Medical Center, Baylor College of Medicine, Houston, Texas
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19
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El Rouby N, Lima JJ, Johnson JA. Proton pump inhibitors: from CYP2C19 pharmacogenetics to precision medicine. Expert Opin Drug Metab Toxicol 2018; 14:447-460. [PMID: 29620484 PMCID: PMC5942154 DOI: 10.1080/17425255.2018.1461835] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Introduction: Proton Pump inhibitors (PPIs) are commonly used for a variety of acid related disorders. Despite the overall effectiveness and safety profile of PPIs, some patients do not respond adequately or develop treatment related adverse events. This variable response among patients is in part due to genotype variability of CYP2C19, the gene encoding the CYP450 (CYP2C19) isoenzyme responsible for PPIs metabolism. Areas covered: This article provides an overview of the pharmacokinetics and mechanism of action of the currently available PPIs, including the magnitude of CYPC19 contribution to their metabolism. Additionally, the role of CYP2C19 genetic variability in the therapeutic effectiveness or outcomes of PPI therapy is highlighted in details, to provide supporting evidence for the potential value of CYP2C19 genotype-guided approaches to PPI drug therapy. Expert opinion: There is a large body of evidence describing the impact of CYP2C19 variability on PPIs and its potential role in individualizing PPI therapy, yet, CYP2C19 pharmacogenetics has not been widely implemented into clinical practice. More data are needed but CYP2C19 genotype-guided dosing of PPIs is likely to become increasingly common and is expected to improve clinical outcomes, and minimize side effects related to PPIs.
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Affiliation(s)
- Nihal El Rouby
- a Department of Pharmacotherapy and Translational Research, College of Pharmacy , University of Florida , Gainesville , FL , USA
| | - John J Lima
- b Center for Pharmacogenomics and Translational Research , Nemours, Children's Health System , Jacksonville , FL , USA
| | - Julie A Johnson
- a Department of Pharmacotherapy and Translational Research, College of Pharmacy , University of Florida , Gainesville , FL , USA
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20
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van Leeuwen RWF, Jansman FGA, Hunfeld NG, Peric R, Reyners AKL, Imholz ALT, Brouwers JRBJ, Aerts JG, van Gelder T, Mathijssen RHJ. Tyrosine Kinase Inhibitors and Proton Pump Inhibitors: An Evaluation of Treatment Options. Clin Pharmacokinet 2018; 56:683-688. [PMID: 28101705 PMCID: PMC5488129 DOI: 10.1007/s40262-016-0503-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Tyrosine kinase inhibitors (TKIs) have rapidly become an established factor in oncology, and have been shown to be effective in a wide variety of solid and hematologic malignancies. Use of the oral administration route of TKIs offers flexibility and is convenient for the patient; however, despite these advantages, the oral route of administration also causes a highly relevant new problem. Acid-inhibitory drugs, such as proton pump inhibitors (PPIs), increase the intragastric pH, which may subsequently decrease TKI solubility, bioavailability, and treatment efficacy. Clear and practical advice on how to manage PPI use during TKI therapy is currently not available in the literature. Since PPIs are extensively used during TKI therapy, prescribers are presented with a big dilemma as to whether or not to continue the combined treatment, resulting in patients possibly being deprived of optimal therapy. When all pharmacological characteristics and data of either TKIs and PPIs are considered, practical and safe advice on how to manage this drug combination can be given.
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Affiliation(s)
- Roelof W F van Leeuwen
- Department of Medical Oncology, Erasmus MC Cancer InstituteErasmus University Medical Center, 's-Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands. .,Department of Hospital Pharmacy, Erasmus University Medical Center, 's-Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands.
| | - Frank G A Jansman
- Department of Clinical Pharmacy, Deventer Hospital, Nico Bolkesteinlaan 75, 7416 SE, Deventer, The Netherlands.,Department of Pharmacotherapy, Epidemiology and Economics, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Nicole G Hunfeld
- Department of Hospital Pharmacy, Erasmus University Medical Center, 's-Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands.,Department of Intensive Care, Erasmus University Medical Center, 's-Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - Robert Peric
- Department of Pulmonary Medicine, Erasmus MC Cancer Institute, 's-Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - Anna K L Reyners
- Department of Medical Oncology, University Medical Center Groningen, A. Deusinglaan 1, 9712 CP, Groningen, The Netherlands
| | - Alex L T Imholz
- Department of Medical Oncology, Deventer Hospital, Nico Bolkesteinlaan 75, 7416 SE, Deventer, The Netherlands
| | - Jacobus R B J Brouwers
- Department of Pharmacotherapy, Epidemiology and Economics, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Joachim G Aerts
- Department of Pulmonary Medicine, Erasmus MC Cancer Institute, 's-Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - Teun van Gelder
- Department of Hospital Pharmacy, Erasmus University Medical Center, 's-Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands.,Department of Internal Medicine, Erasmus University Medical Center, 's-Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
| | - Ron H J Mathijssen
- Department of Medical Oncology, Erasmus MC Cancer InstituteErasmus University Medical Center, 's-Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
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21
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Pharmacokinetics of CYP2C9, CYP2C19, and CYP2D6 substrates in healthy Chinese and European subjects. Eur J Clin Pharmacol 2017; 74:285-296. [PMID: 29181698 DOI: 10.1007/s00228-017-2375-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 11/08/2017] [Indexed: 01/16/2023]
Abstract
PURPOSE The aim of this analysis is to compare the pharmacokinetics of drug substrates in healthy Chinese and European subjects of aligned CYP2C9, CYP2C19, or CYP2D6 enzyme activity, providing further insight into drivers of interethnic differences in pharmacokinetics. METHODS Following identification of appropriate drug substrates, a comprehensive and structured literature search was conducted to identify single-dose pharmacokinetic data in healthy Chinese or European subjects with reported CYP2C9, CYP2C19, or CYP2D6 activity (genotype or phenotype). The ratio of drug AUC in the Chinese and European subjects classified with aligned enzyme activity was calculated (ethnicity ratio (ER)). RESULTS For 22/25 drugs identified, the ERs calculated indicated no or only limited interethnic differences in exposure (<twofold) in Chinese and European subjects with aligned polymorphic enzyme activity. The interethnic differences observed can reflect differences across populations in additional determinants of pharmacokinetics, although the notable between study variation and change over time in methods used to assign enzyme activity may also be contributing factors. There was no association between drug substrate fraction metabolized (fm) for CYP2C9, CYP2C19, or CYP2D6 and the ERs calculated. CONCLUSION The spectrum of pharmacokinetic determinants for each drug substrate and their differences across ethnic groups must be considered on a case-by-case basis in addition to metabolism by CYP2C9, CYP2C19, or CYP2D6. This analysis has also highlighted the challenges which arise when comparing published datasets if consistent methods to assign polymorphic enzyme activity have not been used.
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Abstract
The rapidly declining prevalence of Helicobacter pylori infection and widespread use of potent anti-secretory drugs means peptic ulcer disease has become substantially less prevalent than it was two decades ago. Management has, however, become more challenging than ever because of the threat of increasing antimicrobial resistance worldwide and widespread use of complex anti-thrombotic therapy in the ageing population. Peptic ulcers not associated with H pylori infection or the use of non-steroidal anti-inflammatory drugs are now also imposing substantial diagnostic and therapeutic challenges. This Seminar aims to provide a balanced overview of the latest advances in the pathogenetic mechanisms of peptic ulcers, guidelines on therapies targeting H pylori infection, approaches to treatment of peptic ulcer complications associated with anti-inflammatory analgesics and anti-thrombotic agents, and the unmet needs in terms of our knowledge and management of this increasingly challenging condition.
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Affiliation(s)
- Angel Lanas
- Service of Digestive Diseases, University Clinic Hospital Lozano Blesa, University of Zaragoza, IIS Aragón, CIBEREHD, Zaragoza, Spain.
| | - Francis K L Chan
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
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23
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Prasher B, Varma B, Kumar A, Khuntia BK, Pandey R, Narang A, Tiwari P, Kutum R, Guin D, Kukreti R, Dash D, Mukerji M. Ayurgenomics for stratified medicine: TRISUTRA consortium initiative across ethnically and geographically diverse Indian populations. JOURNAL OF ETHNOPHARMACOLOGY 2017; 197:274-293. [PMID: 27457695 DOI: 10.1016/j.jep.2016.07.063] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 07/02/2016] [Accepted: 07/21/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Genetic differences in the target proteins, metabolizing enzymes and transporters that contribute to inter-individual differences in drug response are not integrated in contemporary drug development programs. Ayurveda, that has propelled many drug discovery programs albeit for the search of new chemical entities incorporates inter-individual variability "Prakriti" in development and administration of drug in an individualized manner. Prakriti of an individual largely determines responsiveness to external environment including drugs as well as susceptibility to diseases. Prakriti has also been shown to have molecular and genomic correlates. We highlight how integration of Prakriti concepts can augment the efficiency of drug discovery and development programs through a unique initiative of Ayurgenomics TRISUTRA consortium. METHODS Five aspects that have been carried out are (1) analysis of variability in FDA approved pharmacogenomics genes/SNPs in exomes of 72 healthy individuals including predominant Prakriti types and matched controls from a North Indian Indo-European cohort (2) establishment of a consortium network and development of five genetically homogeneous cohorts from diverse ethnic and geo-climatic background (3) identification of parameters and development of uniform standard protocols for objective assessment of Prakriti types (4) development of protocols for Prakriti evaluation and its application in more than 7500 individuals in the five cohorts (5) Development of data and sample repository and integrative omics pipelines for identification of genomic correlates. RESULTS Highlight of the study are (1) Exome sequencing revealed significant differences between Prakriti types in 28 SNPs of 11 FDA approved genes of pharmacogenomics relevance viz. CYP2C19, CYP2B6, ESR1, F2, PGR, HLA-B, HLA-DQA1, HLA-DRB1, LDLR, CFTR, CPS1. These variations are polymorphic in diverse Indian and world populations included in 1000 genomes project. (2) Based on the phenotypic attributes of Prakriti we identified anthropometry for anatomical features, biophysical parameters for skin types, HRV for autonomic function tests, spirometry for vital capacity and gustometry for taste thresholds as objective parameters. (3) Comparison of Prakriti phenotypes across different ethnic, age and gender groups led to identification of invariant features as well as some that require weighted considerations across the cohorts. CONCLUSION Considering the molecular and genomics differences underlying Prakriti and relevance in disease pharmacogenomics studies, this novel integrative platform would help in identification of differently susceptible and drug responsive population. Additionally, integrated analysis of phenomic and genomic variations would not only allow identification of clinical and genomic markers of Prakriti for application in personalized medicine but also its integration in drug discovery and development programs.
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Affiliation(s)
- Bhavana Prasher
- CSIR Ayurgenomics Unit- TRISUTRA, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India; Genomics and Molecular Medicine & CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India; Academy of Scientific & Innovative research, CSIR-IGIB, Delhi, India.
| | - Binuja Varma
- CSIR Ayurgenomics Unit- TRISUTRA, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India
| | - Arvind Kumar
- CSIR Ayurgenomics Unit- TRISUTRA, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India
| | - Bharat Krushna Khuntia
- CSIR Ayurgenomics Unit- TRISUTRA, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India
| | - Rajesh Pandey
- CSIR Ayurgenomics Unit- TRISUTRA, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India
| | - Ankita Narang
- CSIR Ayurgenomics Unit- TRISUTRA, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India
| | - Pradeep Tiwari
- CSIR Ayurgenomics Unit- TRISUTRA, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India; Academy of Scientific & Innovative research, CSIR-IGIB, Delhi, India
| | - Rintu Kutum
- G.N.Ramachandran Knowledge Centre for Genome Informatics, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India; Academy of Scientific & Innovative research, CSIR-IGIB, Delhi, India
| | - Debleena Guin
- Genomics and Molecular Medicine & CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India
| | - Ritushree Kukreti
- Genomics and Molecular Medicine & CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India
| | - Debasis Dash
- CSIR Ayurgenomics Unit- TRISUTRA, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India; G.N.Ramachandran Knowledge Centre for Genome Informatics, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India; Academy of Scientific & Innovative research, CSIR-IGIB, Delhi, India
| | - Mitali Mukerji
- CSIR Ayurgenomics Unit- TRISUTRA, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India; Genomics and Molecular Medicine & CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110020, India; Academy of Scientific & Innovative research, CSIR-IGIB, Delhi, India.
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Deshpande N, V S, V V RK, H V V M, M S, Banerjee R, Tandan M, D NR. Rapid and ultra-rapid metabolizers with CYP2C19*17 polymorphism do not respond to standard therapy with proton pump inhibitors. Meta Gene 2016; 9:159-64. [PMID: 27419077 PMCID: PMC4932617 DOI: 10.1016/j.mgene.2016.06.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/03/2016] [Accepted: 06/17/2016] [Indexed: 02/08/2023] Open
Abstract
Introduction and objective Polymorphisms in genes encoding drug metabolizing enzymes may lead to varied enzyme activity and inter-individual variability in drug efficacy and/or toxicity. Since CYP2C19 and CYP3A4 genes code for enzymes involved in metabolizing wide variety of drugs including proton pump inhibitors, we sought to identify polymorphisms in these genes in order to study their impact on drug metabolism in subjects. Methods DNA was isolated from healthy individuals including tribals and genotyped for 11 single nucleotide polymorphisms in CYP2C19 and 6 polymorphisms in CYP3A4. Individuals were categorized into different phenotypes based on their drug metabolizing genotype. Volunteers from each group were administered proton pump inhibitors (Esomeprazole, Pantoprazole; 40 mg/day) for 5 days followed by pharmacokinetic studies and measurement of intra-gastric pH. Results Of the 17 polymorphisms studied, only CYP2C19*2,*3,*17 and CYP3A4*1B polymorphisms were observed. In comparison to urban individuals, a significantly (p = 0.0003) higher number of poor metabolizers were noted in the tribal individuals. Pantoprazole was found to be most effective in poor metabolizers in terms of area under the curve and Tmax. No significant difference was observed in the intra-gastric pH at baseline and day 6 in rapid and ultra-rapid metabolizers. Conclusion Our study has demonstrated that 19.7% of our subjects are carriers of the CYP2C19*17 allele who did not respond to the standard dose of proton pump inhibitors. Genetic screening to identify subjects with variant alleles would thus be useful for personalization of therapy with proton pump inhibitors. Frequency of poor metabolizers varies significantly in two distinct ethnic groups studied. Subjects with CYP2C19*17 polymorphism are not responsive to standard PPI dose. Identifying individuals with these variants may aid in tailoring drug dose for hyper acidic conditions.
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Affiliation(s)
- Neha Deshpande
- Asian Healthcare Foundation, 6-3-661, Somajiguda, Hyderabad 500082, Telangana, India
| | - Sharanya V
- Asian Healthcare Foundation, 6-3-661, Somajiguda, Hyderabad 500082, Telangana, India
| | - Ravi Kanth V V
- Asian Healthcare Foundation, 6-3-661, Somajiguda, Hyderabad 500082, Telangana, India
| | - Murthy H V V
- Asian Healthcare Foundation, 6-3-661, Somajiguda, Hyderabad 500082, Telangana, India
| | - Sasikala M
- Asian Healthcare Foundation, 6-3-661, Somajiguda, Hyderabad 500082, Telangana, India
| | - Rupa Banerjee
- Asian Institute of Gastroenterology, 6-3-661, Somajiguda, Hyderabad 500082, Telangana, India
| | - Manu Tandan
- Asian Institute of Gastroenterology, 6-3-661, Somajiguda, Hyderabad 500082, Telangana, India
| | - Nageshwar Reddy D
- Asian Institute of Gastroenterology, 6-3-661, Somajiguda, Hyderabad 500082, Telangana, India
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van Leeuwen RWF, Peric R, Hussaarts KGAM, Kienhuis E, IJzerman NS, de Bruijn P, van der Leest C, Codrington H, Kloover JS, van der Holt B, Aerts JG, van Gelder T, Mathijssen RHJ. Influence of the Acidic Beverage Cola on the Absorption of Erlotinib in Patients With Non-Small-Cell Lung Cancer. J Clin Oncol 2016; 34:1309-14. [PMID: 26858332 DOI: 10.1200/jco.2015.65.2560] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE Erlotinib depends on stomach pH for its bioavailability. When erlotinib is taken concurrently with a proton pump inhibitor (PPI), stomach pH increases, which results in a clinically relevant decrease of erlotinib bioavailability. We hypothesized that this drug-drug interaction is reversed by taking erlotinib with the acidic beverage cola. The effects of cola on erlotinib bioavailability in patients not treated with a PPI were also studied. PATIENTS AND METHODS In this randomized, cross-over, pharmacokinetic study in patients with non-small-cell lung cancer, we studied intrapatient differences in absorption (area under the plasma concentration time curve [AUC0-12h]) after a 7-day period of concomitant treatment with erlotinib, with or without esomeprazole, with either cola or water. At the 7th and 14th day, patients were hospitalized for 1 day for pharmacokinetic sampling. RESULTS Twenty-eight evaluable patients were included in the analysis. In patients treated with erlotinib and esomeprazole with cola, the mean AUC0-12h increased 39% (range, -12% to 136%; P = .004), whereas in patients not treated with the PPI, the mean AUC0-12h was only slightly higher (9%; range, -10% to +30%; P = .03) after erlotinib intake with cola. CONCLUSION Cola intake led to a clinically relevant and statistically significant increase in the bioavailability of erlotinib during esomeprazole treatment. In patients not treated with the PPI, the effects of cola were marginal. These findings can be used to optimize the management of drug-drug interactions between PPIs and erlotinib.
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Affiliation(s)
- Roelof W F van Leeuwen
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands.
| | - Robert Peric
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
| | - Koen G A M Hussaarts
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
| | - Emma Kienhuis
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
| | - Nikki S IJzerman
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
| | - Peter de Bruijn
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
| | - Cor van der Leest
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
| | - Henk Codrington
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
| | - Jeroen S Kloover
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
| | - Bronno van der Holt
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
| | - Joachim G Aerts
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
| | - Teun van Gelder
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
| | - Ron H J Mathijssen
- Roelof W.F. van Leeuwen, Robert Peric, Koen G.A.M. Hussaarts, Emma Kienhuis, Nikki S. IJzerman, Peter de Bruijn, Cor van der Leest, Bronno van der Holt, Joachim G. Aerts, and Ron H.J. Mathijssen, Erasmus MC Cancer Institute; Roelof W.F. van Leeuwen and Teun van Gelder, Erasmus University Medical Center, Rotterdam; Cor van der Leest and Joachim G. Aerts, Amphia Hospital, Breda; Henk Codrington, Haga Hospital, the Hague; and Jeroen S. Kloover, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
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Lima JJ, Franciosi JP. Pharmacogenomic testing: the case for CYP2C19 proton pump inhibitor gene-drug pairs. Pharmacogenomics 2015; 15:1405-16. [PMID: 25303292 DOI: 10.2217/pgs.14.103] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The use of proton pump inhibitors (PPIs) in the treatment of gastroesophageal reflux and related diseases is increasing, especially in the pediatric population. Prolonged use of PPIs has been associated with several adverse effects, including potentially life-threatening gastric and respiratory infections, which are related to dose or to the degree of gastric acid suppression. Genetic variation in the CYP2C19 gene gives rise to poor and extensive metabolizer phenotypes, which influence PPI clearance, efficacy and exposure. A recent paper linked lansoprazole-associated respiratory infections in children with the poor metabolizer phenotype. The case is made for implementing pharmacogenomic testing for the CYP2C19-PPI gene-drug pair and to dose accordingly in order to minimize PPI-associated infections.
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Affiliation(s)
- John J Lima
- Center for Pharmacogenomics & Translational Research, Nemours Children's Clinic, 807 Children's Way, Jacksonville, FL 32207, USA
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Masclee GMC, Sturkenboom MCJM, Kuipers EJ. A Benefit–Risk Assessment of the Use of Proton Pump Inhibitors in the Elderly. Drugs Aging 2014; 31:263-82. [DOI: 10.1007/s40266-014-0166-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Goutelle S, Bourguignon L, Bleyzac N, Berry J, Clavel-Grabit F, Tod M. In vivo quantitative prediction of the effect of gene polymorphisms and drug interactions on drug exposure for CYP2C19 substrates. AAPS JOURNAL 2013; 15:415-26. [PMID: 23319287 DOI: 10.1208/s12248-012-9431-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Accepted: 10/20/2012] [Indexed: 12/17/2022]
Abstract
We present a unified quantitative approach to predict the in vivo alteration in drug exposure caused by either cytochrome P450 (CYP) gene polymorphisms or CYP-mediated drug-drug interactions (DDI). An application to drugs metabolized by CYP2C19 is presented. The metrics used is the ratio of altered drug area under the curve (AUC) to the AUC in extensive metabolizers with no mutation or no interaction. Data from 42 pharmacokinetic studies performed in CYP2C19 genetic subgroups and 18 DDI studies were used to estimate model parameters and predicted AUC ratios by using Bayesian approach. Pharmacogenetic information was used to estimate a parameter of the model which was then used to predict DDI. The method adequately predicted the AUC ratios published in the literature, with mean errors of -0.15 and -0.62 and mean absolute errors of 0.62 and 1.05 for genotype and DDI data, respectively. The approach provides quantitative prediction of the effect of five genotype variants and 10 inhibitors on the exposure to 25 CYP2C19 substrates, including a number of unobserved cases. A quantitative approach for predicting the effect of gene polymorphisms and drug interactions on drug exposure has been successfully applied for CYP2C19 substrates. This study shows that pharmacogenetic information can be used to predict DDI. This may have important implications for the development of personalized medicine and drug development.
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Affiliation(s)
- Sylvain Goutelle
- Service Pharmaceutique, Groupement Hospitalier de Gériatrie, Hospices Civils de Lyon, Lyon, France.
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Hatlebakk JG, Emken BEG, Glazkov V, Hoff DAL, Hausken T. Riktig bruk av protonpumpehemmere ved reflukssykdom. TIDSSKRIFT FOR DEN NORSKE LEGEFORENING 2013; 133:43-6. [DOI: 10.4045/tidsskr.12.0019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Abstract
INTRODUCTION Gastritis is a broad term, which is used for different conditions by clinicians, endoscopists and pathologists. Classification strategies have led to more congruence between specialists. The histological evaluation of the gastric mucosa is mandatory for diagnosing and classifying gastritis. Main aetiologic factor is infection with Helicobacter pylori. The clinical importance of gastritis lays in the fact that it predisposes to more pronounced damage to the gastric mucosa, in particular peptic ulcer disease, and eventually atrophic gastritis, intestinal metaplasia and gastric malignancy, both adenocarcinoma and MALT lymphoma. AREAS COVERED This review covers the current pharmacotherapy options for different forms of gastritis. The main focus is on H. pylori-induced gastritis. Thereafter, other forms of gastritis like autoimmune gastritis and non-steroidal anti-inflammatory drug (NSAID)-related gastropathy are covered. EXPERT OPINION The emerging problem of antibiotic resistance requires an accurate knowledge of local eradication rates. Standard triple therapy should be abandoned in regions with high clarithromycin resistance. In these areas, sequential or quadruple therapy is best initial treatment. Further research should focus on non-invasive and effective techniques of susceptibility testing, making a tailored and cost-effective approach. Primary prevention of NSAID-related gastropathy can be enhanced by better education for clinicians and patients, so that both right prescription of gastroprotective agents as therapy adherence will improve.
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Affiliation(s)
- Wouter J den Hollander
- Erasmus MC University Medical Centre, Departments of Gastroenterology and Hepatology, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands.
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Sugano K, Kinoshita Y, Miwa H, Takeuchi T. Randomised clinical trial: esomeprazole for the prevention of nonsteroidal anti-inflammatory drug-related peptic ulcers in Japanese patients. Aliment Pharmacol Ther 2012; 36:115-25. [PMID: 22591121 DOI: 10.1111/j.1365-2036.2012.05133.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 03/06/2012] [Accepted: 04/24/2012] [Indexed: 12/30/2022]
Abstract
BACKGROUND The use of proton pump inhibitors for prevention of nonsteroidal anti-inflammatory drug (NSAID)-induced gastrointestinal adverse events is well documented. However, data regarding the efficacy and safety of this approach in Japan are scarce. AIM To evaluate the efficacy and tolerability of esomeprazole in preventing NSAID-induced peptic ulcers in Japanese at-risk patients. METHODS Male and female Japanese adult patients (aged ≥ 20 years) with endoscopically confirmed history of peptic ulcers who required long-term oral NSAID therapy for a chronic inflammatory condition were randomised to 24 weeks' treatment with esomeprazole 20 mg once daily or matching placebo. The primary end point was the Kaplan-Meier estimated proportion of ulcer-free patients. RESULTS Overall, 343 patients were randomised to treatment (esomeprazole, n = 175; placebo, n = 168). The Kaplan-Meier estimated ulcer-free rate over the 24-week treatment period was significantly higher (log-rank P < 0.001) in esomeprazole-treated patients (96.0%; 95% CI 92.8, 99.1) than in placebo recipients (64.4%; 95% CI 56.8, 71.9). Esomeprazole was effective at preventing peptic ulcers in both Helicobacter pylori-positive and -negative patients (96.3% vs. 95.5% of patients ulcer-free, respectively); however, in the placebo group, the proportion of ulcer-free patients at 24 weeks was markedly lower among H. pylori-positive than -negative patients (59.7% vs. 69.9%). The NSAID type did not seem to affect the estimated ulcer-free rate with esomeprazole. Treatment with esomeprazole was well tolerated. CONCLUSION Esomeprazole 20 mg once daily is effective and safe in preventing ulcer recurrence in Japanese patients with a definite history of peptic ulcers who were taking an NSAID (ClinicalTrials.gov identifier: NCT00542789).
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Affiliation(s)
- K Sugano
- Department of Medicine, Jichi Medical University, Shimotsuke, Japan
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Hunfeld NG, Touw DJ, Mathot RA, van Schaik RH, Kuipers EJ. A comparison of the acid-inhibitory effects of esomeprazole and rabeprazole in relation to pharmacokinetics and CYP2C19 polymorphism. Aliment Pharmacol Ther 2012; 35:810-8. [PMID: 22324425 DOI: 10.1111/j.1365-2036.2012.05014.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Revised: 07/12/2011] [Accepted: 01/19/2012] [Indexed: 12/12/2022]
Abstract
BACKGROUND Esomeprazole and rabeprazole are metabolised in the liver by means of the CYP2C19 enzyme, which has several functional genetic polymorphisms. Among Caucasians, 70% of the population has a fast metaboliser phenotype, 25-30% an intermediate and 2-5% a slow metaboliser phenotype. It is unknown whether different PPIs are affected to the same extent by these phenotypic differences. AIM To compare the acid-inhibitory effects of esomeprazole 40 mg and rabeprazole 20 mg in relation to CYP2C19 genotype and pharmacokinetics. METHODS Eighteen healthy Helicobacter pylori-negative Caucasian subjects with CYP2C19*2-*6 and *17 genotype were included in a randomised investigator-blinded crossover study with esomeprazole 40 mg and rabeprazole 20 mg. Intragastric 24-h pH-monitoring was performed on days 0, 1 and 5 of oral dosing. RESULTS Onset of acid inhibition during the first 4 h after administration did not differ significantly between PPIs. During the upright period, the proportion of time with pH >4 was significantly higher with esomeprazole compared to rabeprazole (52.2 vs. 40.3%, P = 0.003). At day 1 and 5, acid inhibition was significantly greater with esomeprazole than with rabeprazole (median intragastric pH: day 1: 3.7 vs. 3.0, P = 0.008; day 5: 4.7 vs. 3.8, P < 0.001; percentage of time pH >4: day 1: 45 vs. 39%, P = 0.054; day 5: 65 vs. 48%, P < 0.001). Differences in acid inhibition between wt/wt and wt/*2 genotype were significant for both PPIs. CONCLUSIONS Once-daily dosing with esomeprazole 40 mg provides a more effective and faster acid-inhibitory effect than rabeprazole 20 mg. The acid-inhibitory effect of esomeprazole and rabeprazole are both influenced by CYP2C19 polymorphism.
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Affiliation(s)
- N G Hunfeld
- Department of Hospital Pharmacy, Central Hospital Pharmacy, Haga Teaching Hospital, Den Haag, The Netherlands.
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Gawrońska-Szklarz B, Adamiak-Giera U, Wyska E, Kurzawski M, Gornik W, Kaldonska M, Drozdzik M. CYP2C19 polymorphism affects single-dose pharmacokinetics of oral pantoprazole in healthy volunteers. Eur J Clin Pharmacol 2012; 68:1267-74. [PMID: 22418828 PMCID: PMC3419350 DOI: 10.1007/s00228-012-1252-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Accepted: 02/15/2012] [Indexed: 12/14/2022]
Abstract
Objectives Pantoprazole is metabolized by cytochrome P450 2 C19, which shows genetic polymorphism. The effect of CYP2C19 polymorphism on single-dose pharmacokinetics of oral pantoprazole in healthy volunteers was evaluated. Methods Pantoprazole pharmacokinetics was determined in 32 healthy volunteers after a 40-mg single oral dose of the drug. Results Carriers of CYP2C19*2/*2 (n = 2) were characterized by higher, starting from 3.5 h post dose, plasma concentrations of pantoprazole in comparison to wild-type (CYP2C19*1/*1, n = 6) volunteers. In subjects with CYP2C19*17/*17 genotype (n = 6) significantly lower plasma concentrations of the drug vs CYP2C19*1/*1 carriers, were observed from 3.0 h after oral pantoprazole administration. Carriers of CYP2C19*1/*17 (n = 6) and CYP2C19*2/*17 (n = 6) displayed concentration–time profiles comparable to wild-type subjects. CYP2C19*2/*2 volunteers showed a decrease in terminal elimination rate constant (λz) by 83.3%, prolongation of terminal half-life (t½) by 572%, a rise in area under the concentration–time curve (AUC) and mean residence time (MRT) by 506% and 259% respectively. Heterozygotes, i.e.. CYP2C19*1/*2 vs CYP2C19*1/*1 were characterized by higher AUC (4.38 ± 1.00 mg⋅h/L vs 3.00 ± 1.02 mg⋅h/L, p < 0.05) and Cmax (2.13 ± 0.42 mg/L vs 1.61 ± 0.35 mg/L, p < 0.05) respectively. A significant reduction in MRT (3.83 ± 0.82 h vs 2.73 ± 0.23 h, p < 0.05) in carriers of CYP2C19*17/*17 vs CYP2C19*1/*1 genotypes was observed. Population modeling confirmed the influence of *1/*2, *2/*2, and *17/*17 genotypes on the pharmacokinetics of pantoprazole. The lowest population oral clearance was assessed in the carriers of genotype *2/*2 (3.68 L/h) and the highest value in subjects with genotype *17/*17 (31.13 L/h). Conclusion These data suggest that CYP2C19 polymorphism is an important determinant of pantoprazole pharmacokinetics.
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Affiliation(s)
- Barbara Gawrońska-Szklarz
- Department of Pharmacology, Pomeranian Medical University, Powstancow Wlkp 72, 70-111 Szczecin, Poland
| | - Urszula Adamiak-Giera
- Department of Pharmacology, Pomeranian Medical University, Powstancow Wlkp 72, 70-111 Szczecin, Poland
| | - Elżbieta Wyska
- Department of Pharmacokinetics and Physical Pharmacy, Jagiellonian University, Collegium Medicum, Cracow, Poland
| | - Mateusz Kurzawski
- Department of Pharmacology, Pomeranian Medical University, Powstancow Wlkp 72, 70-111 Szczecin, Poland
| | - Wanda Gornik
- Department of Pharmacology, Pomeranian Medical University, Powstancow Wlkp 72, 70-111 Szczecin, Poland
| | - Maria Kaldonska
- Department of Pharmacology, Pomeranian Medical University, Powstancow Wlkp 72, 70-111 Szczecin, Poland
| | - Marek Drozdzik
- Department of Pharmacology, Pomeranian Medical University, Powstancow Wlkp 72, 70-111 Szczecin, Poland
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Hagymási K, Müllner K, Herszényi L, Tulassay Z. Update on the pharmacogenomics of proton pump inhibitors. Pharmacogenomics 2011; 12:873-88. [PMID: 21692617 DOI: 10.2217/pgs.11.4] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Proton pump inhibitors (PPIs) are widely used for the treatment of gastroesophageal reflux disease as well as other acid-related disorders. PPIs are metabolized primarily via the CYP2C19 and CYP3A4 isoenzymes; their activity is influenced both by exogenous and endogenous (pharmacogenetic) factors. The CYP2C19 polymorphism affects the metabolism of PPIs, causing large individual pharmacokinetic variations. Differences in the CYP2C19-mediated metabolism can produce marked interpatient variability in acid suppression, in drug-interaction potential and in clinical efficacy. Understanding the pharmacokinetic properties of PPIs and examining the pharmacogenetic alterations may help clinicians optimize PPI therapy and administer individual treatment, especially to nonresponder patients with gastroesophageal reflux disease or ulcer or after failed eradication therapy.
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Affiliation(s)
- Krisztina Hagymási
- Semmelweis University, II. Department of Internal Medicine, 1088 Budapest, Szentkirályi u. 46., Hungary.
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Niazi M, Silberg DG, Miller F, Ruth M, Holmberg AA. Evaluation of the pharmacokinetic interaction between lesogaberan (AZD3355) and esomeprazole in healthy subjects. Drugs R D 2011; 10:243-51. [PMID: 21171670 PMCID: PMC3586101 DOI: 10.2165/11588180-000000000-00000] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background: Transient lower esophageal sphincter relaxations (TLESRs) have been identified as a primary cause of reflux events in patients with gastroesophageal reflux disease (GERD). GABAB receptor agonists such as lesogaberan (AZD3355) have been shown to inhibit TLESRs in healthy subjects and patients with GERD, and, therefore, offer a novel therapeutic add-on strategy to acid suppression for the management of GERD. As lesogaberan is being developed as an add-on treatment for the management of patients with GERD who have a partial response to proton pump inhibitor (PPI) therapy, it is important to rule out any clinically important pharmacokinetic drug-drug interaction between lesogaberan and PPIs. Objective: To evaluate the effect of esomeprazole on the pharmacokinetics and safety of lesogaberan and vice versa. Study Design: This was an open-label, randomized, three-way crossover study. The study was open to healthy adult male and female subjects. The study subjects received treatment with, in random order, lesogaberan (150mg twice daily [dose interval 12 hours]), esomeprazole (40 mg once daily), and a combination of both, during 7-day treatment periods. Main Outcome: The presence or absence of pharmacokinetic interactions between lesogaberan and esomeprazole was assessed by measuring the steady-state area under the plasma concentration-time curves during the dosing interval (AUCτ) and the maximum observed plasma concentration (Cmax) for lesogaberan and esomeprazole. Results: Thirty male subjects (mean age 23.2 years, 97% Caucasian) were randomized to treatment and 28 subjects completed the study (one subject was lost to follow-up, and one subject discontinued due to an adverse event). The 95% confidence intervals of the geometric mean ratios for AUCτ and Cmax of lesogaberan and esomeprazole administered alone and concomitantly were within the recognized boundaries of bioequivalence (0.8–1.25). No new safety concerns were raised during this study. The number of patients with adverse events during treatment with lesogaberan alone (n = 17) and concomitantly with esomeprazole (n = 18) were comparable but higher than with esomeprazole alone (n = 10). Paresthesia (episodic, mild, and transient), pharyngitis, and flatulence were the most frequently reported adverse events. Conclusions: There was no observed pharmacokinetic interaction between lesogaberan and esomeprazole when concomitantly administered to healthy subjects, and concomitant therapy was well tolerated. Trial registration number (clinicaltrials.gov): NCT00684190
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Kukulka M, Eisenberg C, Nudurupati S. Comparator pH study to evaluate the single-dose pharmacodynamics of dual delayed-release dexlansoprazole 60 mg and delayed-release esomeprazole 40 mg. Clin Exp Gastroenterol 2011; 4:213-20. [PMID: 22016582 PMCID: PMC3190289 DOI: 10.2147/ceg.s24063] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Indexed: 01/18/2023] Open
Abstract
Background: This paper describes a Phase 1, single-center, randomized, open-label, two-period crossover study which compared the pharmacodynamic effects of single doses of dexlansoprazole modified-release 60 mg and esomeprazole 40 mg on 24-hour intragastric pH in healthy adult subjects. Methods: Forty-four subjects aged 20–54 years were randomized in a 1:1 ratio to two sequence groups defining the order in which they received dexlansoprazole and esomeprazole in periods 1 and 2. Primary pharmacodynamic end points over 24 hours postdose were percentage of time with intragastric pH > 4 and mean pH, and secondary pharmacodynamic end points were percentage of time intragastric pH > 4, and mean pH at 0–12 hours, and at >12–24 hours postdose. Each drug was given after an overnight fast and one hour before breakfast. Continuous pH recording began immediately before dosing through to 24 hours postdose. Results: At 0–24 hours postdose, the mean percentage of time with pH > 4 for dexlansoprazole and esomeprazole was 58% and 48%, respectively; the difference was statistically significant (P = 0.003). The average of mean pH values at 0–24 hours postdose for dexlansoprazole and esomeprazole were 4.3 and 3.7, respectively; the difference was statistically significant (P < 0.001). At >12–24 hours postdose, mean percentage of time with pH > 4 and average of mean pH were greater for dexlansoprazole (60% and 4.5, respectively) compared with esomeprazole (42% and 3.5, respectively); the difference was statistically significant (P < 0.001 for both intervals). At 0–12 hours postdose, the difference in dexlansoprazole and esomeprazole values for the pharmacodynamic end points was not statistically significant. Conclusion: For the entire 24-hour postdose period, predominantly resulting from the >12–24-hour postdose interval, the average intragastric pH following a single dose of dexlansoprazole 60 mg was higher compared with that observed following a single dose of esomeprazole 40 mg, and the difference was statistically significant.
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den Hoed CM, Kuipers EJ. Esomeprazole for the treatment of peptic ulcer bleeding. Expert Rev Gastroenterol Hepatol 2010; 4:679-95. [PMID: 21108587 DOI: 10.1586/egh.10.66] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Peptic ulcer bleeding is the most common cause of acute bleeding in the upper GI tract. The incidence of peptic ulcer bleeding has slowly decreased and endoscopic treatment options have improved; nevertheless, it remains a very common condition with a 7-15% mortality. Acidic environments have a negative effect on hemostasis. Therefore, acid inhibitors have been applied in the adjuvant treatment of peptic ulcer bleeding, both in preventing rebleeding and in treating the underlying cause. This requires profound acid suppressive therapy aiming for a rapid onset of effect and a persistent intragastric pH above 6. This can only be achieved by proton pump inhibitors (PPIs). Esomeprazole is the S-isomer of omeprazole, and the first PPI to consist of only the active isomer. A number of studies have compared esomeprazole with other PPIs, demonstrating a faster and more persistent increase in intragastric pH with the use of esomeprazole than with other agents. Continuous high-dose intravenous treatment with esomeprazole decreases rebleeding, surgery, transfusion rates and hospital days in peptic ulcer bleeding.
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Affiliation(s)
- Caroline M den Hoed
- Department of Gastroenterology, Erasmus MC University Medical Center, Gravendijkwal 230, 3015 CE, Rotterdam, The Netherlands
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