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Hartauer M, Murphy WA, Brouwer KLR, Southall R, Neuhoff S. Hepatic OATP1B zonal distribution: Implications for rifampicin-mediated drug-drug interactions explored within a PBPK framework. CPT Pharmacometrics Syst Pharmacol 2024. [PMID: 38898552 DOI: 10.1002/psp4.13188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/16/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024] Open
Abstract
OATP1B facilitates the uptake of xenobiotics into hepatocytes and is a prominent target for drug-drug interactions (DDIs). Reduced systemic exposure of OATP1B substrates has been reported following multiple-dose rifampicin; one explanation for this observation is OATP1B induction. Non-uniform hepatic distribution of OATP1B may impact local rifampicin tissue concentrations and rifampicin-mediated protein induction, which may affect the accuracy of transporter- and/or metabolizing enzyme-mediated DDI predictions. We incorporated quantitative zonal OATP1B distribution data from immunofluorescence imaging into a PBPK modeling framework to explore rifampicin interactions with OATP1B and CYP substrates. PBPK models were developed for rifampicin, two OATP1B substrates, pravastatin and repaglinide (also metabolized by CYP2C8/CYP3A4), and the CYP3A probe, midazolam. Simulated hepatic uptake of pravastatin and repaglinide increased from the periportal to the pericentral region (approximately 2.1-fold), consistent with OATP1B distribution data. Simulated rifampicin unbound intracellular concentrations increased in the pericentral region (1.64-fold) compared to simulations with uniformly distributed OATP1B. The absolute average fold error of the rifampicin PBPK model for predicting substrate maximal concentration (Cmax) and area under the plasma concentration-time curve (AUC) ratios was 1.41 and 1.54, respectively (nine studies). In conclusion, hepatic OATP1B distribution has a considerable impact on simulated zonal substrate uptake clearance values and simulated intracellular perpetrator concentrations, which regulate transporter and metabolic DDIs. Additionally, accounting for rifampicin-mediated OATP1B induction in parallel with inhibition improved model predictions. This study provides novel insight into the effect of hepatic OATP1B distribution on site-specific DDI predictions and the impact of accounting for zonal transporter distributions within PBPK models.
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Affiliation(s)
- Mattie Hartauer
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - William A Murphy
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Kim L R Brouwer
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Alsmadi MM, Abudaqqa AA, Idkaidek N, Qinna NA, Al-Ghazawi A. The Effect of Inflammatory Bowel Disease and Irritable Bowel Syndrome on Pravastatin Oral Bioavailability: In vivo and in silico evaluation using bottom-up wbPBPK modeling. AAPS PharmSciTech 2024; 25:86. [PMID: 38605192 DOI: 10.1208/s12249-024-02803-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 04/01/2024] [Indexed: 04/13/2024] Open
Abstract
The common disorders irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD) can modify the drugs' pharmacokinetics via their induced pathophysiological changes. This work aimed to investigate the impact of these two diseases on pravastatin oral bioavailability. Rat models for IBS and IBD were used to experimentally test the effects of IBS and IBD on pravastatin pharmacokinetics. Then, the observations made in rats were extrapolated to humans using a mechanistic whole-body physiologically-based pharmacokinetic (wbPBPK) model. The rat in vivo studies done herein showed that IBS and IBD decreased serum albumin (> 11% for both), decreased PRV binding in plasma, and increased pravastatin absolute oral bioavailability (0.17 and 0.53 compared to 0.01) which increased plasma, muscle, and liver exposure. However, the wbPBPK model predicted muscle concentration was much lower than the pravastatin toxicity thresholds for myotoxicity and rhabdomyolysis. Overall, IBS and IBD can significantly increase pravastatin oral bioavailability which can be due to a combination of increased pravastatin intestinal permeability and decreased pravastatin gastric degradation resulting in higher exposure. This is the first study in the literature investigating the effects of IBS and IBD on pravastatin pharmacokinetics. The high interpatient variability in pravastatin concentrations as induced by IBD and IBS can be reduced by oral administration of pravastatin using enteric-coated tablets. Such disease (IBS and IBD)-drug interaction can have more drastic consequences for narrow therapeutic index drugs prone to gastric degradation, especially for drugs with low intestinal permeability.
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Affiliation(s)
- Motasem M Alsmadi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan.
- Nanotechnology Institute, Jordan University of Science and Technology, Irbid, Jordan.
| | - Alla A Abudaqqa
- Faculty of Pharmacy and Biomedical Sciences, University of Petra, Amman, Jordan
| | - Nasir Idkaidek
- Faculty of Pharmacy and Biomedical Sciences, University of Petra, Amman, Jordan
| | - Nidal A Qinna
- Faculty of Pharmacy and Biomedical Sciences, University of Petra, Amman, Jordan
- University of Petra Pharmaceutical Center (UPPC), University of Petra, Amman, Jordan
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Kammala AK, Richardson LS, Radnaa E, Han A, Menon R. Microfluidic technology and simulation models in studying pharmacokinetics during pregnancy. Front Pharmacol 2023; 14:1241815. [PMID: 37663251 PMCID: PMC10469630 DOI: 10.3389/fphar.2023.1241815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 08/02/2023] [Indexed: 09/05/2023] Open
Abstract
Introduction: Preterm birth rates and maternal and neonatal mortality remain concerning global health issues, necessitating improved strategies for testing therapeutic compounds during pregnancy. Current 2D or 3D cell models and animal models often fail to provide data that can effectively translate into clinical trials, leading to pregnant women being excluded from drug development considerations and clinical studies. To address this limitation, we explored the utility of in silico simulation modeling and microfluidic-based organ-on-a-chip platforms to assess potential interventional agents. Methods: We developed a multi-organ feto-maternal interface on-chip (FMi-PLA-OOC) utilizing microfluidic channels to maintain intercellular interactions among seven different cell types (fetal membrane-decidua-placenta). This platform enabled the investigation of drug pharmacokinetics in vitro. Pravastatin, a model drug known for its efficacy in reducing oxidative stress and inflammation during pregnancy and currently in clinical trials, was used to test its transfer rate across both feto-maternal interfaces. The data obtained from FMi-PLA-OOC were compared with existing data from in vivo animal models and ex vivo placenta perfusion models. Additionally, we employed mechanistically based simulation software (Gastroplus®) to predict pravastatin pharmacokinetics in pregnant subjects based on validated nonpregnant drug data. Results: Pravastatin transfer across the FMi-PLA-OOC and predicted pharmacokinetics in the in silico models were found to be similar, approximately 18%. In contrast, animal models showed supraphysiologic drug accumulation in the amniotic fluid, reaching approximately 33%. Discussion: The results from this study suggest that the FMi-PLA-OOC and in silico models can serve as alternative methods for studying drug pharmacokinetics during pregnancy, providing valuable insights into drug transport and metabolism across the placenta and fetal membranes. These advanced platforms offer promising opportunities for safe, reliable, and faster testing of therapeutic compounds, potentially reducing the number of pregnant women referred to as "therapeutic orphans" due to the lack of consideration in drug development and clinical trials. By bridging the gap between preclinical studies and clinical trials, these approaches hold great promise in improving maternal and neonatal health outcomes.
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Affiliation(s)
- Ananth K. Kammala
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Lauren S. Richardson
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Enkhtuya Radnaa
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Arum Han
- Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, United States
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, United States
| | - Ramkumar Menon
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
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An Assessment of Occasional Bio-Inequivalence for BCS1 and BCS3 Drugs: What are the Underlying Reasons? J Pharm Sci 2021; 111:124-134. [PMID: 34363838 DOI: 10.1016/j.xphs.2021.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/02/2021] [Accepted: 08/02/2021] [Indexed: 11/20/2022]
Abstract
Despite having adequate solubility properties, bioequivalence (BE) studies performed on immediate release formulations containing BCS1/3 drugs occasionally fail. By systematically evaluating a set of 17 soluble drugs where unexpected BE failures have been reported and comparing to a set of 29 drugs where no such reports have been documented, a broad assessment of the risk factors leading to BE failure was performed. BE failures for BCS1/3 drugs were predominantly related to changes in Cmax rather than AUC. Cmax changes were typically modest, with minimal clinical significance for most drugs. Overall, drugs with a sharp plasma peak were identified as a key factor in BE failure risk. A new pharmacokinetic term (t½Cmax) is proposed to identify drugs at higher risk due to their peak plasma profile shape. In addition, the analysis revealed that weak acids, and drugs with particularly high gastric solubility are potentially more vulnerable to BE failure, particularly when these features are combined with a sharp Cmax peak. BCS3 drugs, which are often characterised as being more vulnerable to BE failure due to their potential for permeation and transit to be altered, particularly by excipient change, were not in general at greater risk of BE failures. These findings will help to inform how biowaivers may be optimally applied in the future.
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Kayesh R, Farasyn T, Crowe A, Liu Q, Pahwa S, Alam K, Neuhoff S, Hatley O, Ding K, Yue W. Assessing OATP1B1- and OATP1B3-Mediated Drug-Drug Interaction Potential of Vemurafenib Using R-Value and Physiologically-Based Pharmacokinetic Models. J Pharm Sci 2021; 110:314-324. [PMID: 32590030 PMCID: PMC7750294 DOI: 10.1016/j.xphs.2020.06.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 06/14/2020] [Accepted: 06/15/2020] [Indexed: 11/19/2022]
Abstract
Organic anion transporting polypeptides (OATP) 1B1 and OATP1B3 are important determinants of transporter-mediated drug-drug interactions (DDIs). Current studies assessed the OATP1B1 and OATP1B3-mediated DDI potential of vemurafenib, a kinase inhibitor drug with high protein binding and low aqueous solubility, using R-value and physiologically-based pharmacokinetic (PBPK) models. The total half-maximal inhibitory concentration (IC50,total) values of vemurafenib against OATP1B1 and OATP1B3 were determined in 100% human plasma in transporter-overexpressing human embryonic kidney 293 stable cell lines. The unbound fraction of vemurafenib in human plasma before (fu,plasma) and after addition into the uptake assay plate (fu,plasma,inc) were determined by rapid equilibrium dialysis. There was no statistically significant difference between fu,plasma and fu,plasma,inc. Vemurafenib IC50,total values against OATP1B1 and OATP1B3 are 175 ± 82 and 231 ± 26 μM, respectively. The R-values [R = 1 + fu,plasma × Iin,max/(fu,plasma,inc × IC50,total)] were then simplified as R = 1+Iin,max/IC50,total, and were 1.76 and 1.57 for OATP1B1 and OATP1B3, respectively. The simulated pravastatin AUC ratio was 1.28 when a single dose of pravastatin (40 mg) was co-administered with vemurafenib (960 mg, twice daily) at steady-state, compared to pravastatin alone. Both R-value and PBPK models predict that vemurafenib has the potential to cause OATP1B1- and OATP1B3-mediated DDIs.
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Affiliation(s)
- Ruhul Kayesh
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Taleah Farasyn
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Alexandra Crowe
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Qiang Liu
- ARL Bio Pharma, Oklahoma City, Oklahoma 73104
| | - Sonia Pahwa
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Khondoker Alam
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Sibylle Neuhoff
- Certara UK Ltd, Simcyp Division, Level 2-Acero, 1 Concourse Way, Sheffield, S1 2BJ United Kingdom
| | - Oliver Hatley
- Certara UK Ltd, Simcyp Division, Level 2-Acero, 1 Concourse Way, Sheffield, S1 2BJ United Kingdom
| | - Kai Ding
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104
| | - Wei Yue
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104.
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Riccardi N, Canetti D, Rodari P, Besozzi G, Saderi L, Dettori M, Codecasa LR, Sotgiu G. Tuberculosis and pharmacological interactions: A narrative review. CURRENT RESEARCH IN PHARMACOLOGY AND DRUG DISCOVERY 2020; 2:100007. [PMID: 34909643 PMCID: PMC8663953 DOI: 10.1016/j.crphar.2020.100007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 02/04/2023] Open
Abstract
Even if major improvements in therapeutic regimens and treatment outcomes have been progressively achieved, tuberculosis (TB) remains the leading cause of death from a single infectious microorganism. To improve TB treatment success as well as patients' quality of life, drug-drug-interactions (DDIs) need to be wisely managed. Comprehensive knowledge of anti-TB drugs, pharmacokinetics and pharmacodynamic (PK/PD) parameters, potential patients' changes in absorption and distribution, possible side effects and interactions, is mandatory to built effective anti-TB regimens. Optimization of treatments and adherence to international guidelines can help bend the curve of TB-related mortality and, ultimately, decrease the likelihood of treatment failure and drop-out during anti-TB treatment. Aim of this paper is to describe the most relevant DDIs between anti-TB and other drugs used in daily clinical practice, providing an updated and "easy-to-use" guide to minimize adverse effects, drop-outs and, in the long run, increase treatment success.
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Affiliation(s)
- Niccolò Riccardi
- StopTB Italia Onlus, Milan, Italy
- Department of Infectious - Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Diana Canetti
- StopTB Italia Onlus, Milan, Italy
- Clinic of Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Paola Rodari
- Department of Infectious - Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | | | - Laura Saderi
- StopTB Italia Onlus, Milan, Italy
- Clinical Epidemiology and Medical Statistics Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Marco Dettori
- Clinical Epidemiology and Medical Statistics Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Luigi R. Codecasa
- StopTB Italia Onlus, Milan, Italy
- Regional TB Reference Centre, Villa Marelli Inst., Niguarda Hospital, Milan, Italy
| | - Giovanni Sotgiu
- StopTB Italia Onlus, Milan, Italy
- Clinical Epidemiology and Medical Statistics Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
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Sabeel S, Motaung B, Ozturk M, Mukasa S, Kengne AP, Blom D, Sliwa K, Nepolo E, Günther G, Wilkinson RJ, Schacht C, Thienemann F, Guler R. Protocol for systematic review and meta-analysis: impact of statins as immune-modulatory agents on inflammatory markers in adults with chronic diseases. BMJ Open 2020; 10:e039034. [PMID: 32792452 PMCID: PMC7430409 DOI: 10.1136/bmjopen-2020-039034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
INTRODUCTION Statins, also known as 3-hydroxy-3-methylglutaryl coenzyme-A (HMG-CoA) reductase inhibitors, are lipid-lowering agents that are central in preventing or reducing the complications of atherosclerotic cardiovascular disease. Because statins have anti-inflammatory properties, there is considerable interest in their therapeutic potential in other chronic inflammatory conditions. We aim to identify the statin with the greatest ability to reduce systemic inflammation, independent of the underlying disease entity. METHODS AND ANALYSIS We aim to conduct a comprehensive search of published and peer-reviewed randomised controlled clinical trials, with at least one intervention arm of a Food & Drug Administration-licensed or European Medicines Agency-licensed statin and a minimum treatment duration of 12 weeks. Our objective is to investigate the effect of statins (atorvastatin, fluvastatin, pitavastatin, pravastatin, rosuvastatin, simvastatin) on lipid profile, particularly, cholesterol low-density lipoprotein and inflammation markers such as high-sensitive C reactive protein (hsCRP), CRP, tumour necrosis factor alpha (TNF-α), interleukin-1β (IL-1β), IL-6, IL-8, soluble cluster of differentiation 14 (sCD14) or sCD16 in adults, published in the last 20 years (between January 1999 and December 2019). We aim to identify the most potent statin to reduce systemic inflammation and optimal dosing. The following databases will be searched: Medline, Scopus, Web of Science and Cochrane Library of Systematic Reviews. The risk of bias of included studies will be assessed by Cochrane Risk of Bias Tool and Quality Assessment Tool for Quantitative Studies. The quality of studies will be assessed, to show uncertainty, by the Jadad Score. If sufficient evidence is identified, a meta-analysis will be conducted with risk ratios or ORs with 95% CIs in addition to mean differences. ETHICS AND DISSEMINATION Ethics approval is not required as no primary data will be collected. Results will be presented at conferences and published in a peer-reviewed journal. PROSPERO REGISTRATION NUMBER CRD42020169919.
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Affiliation(s)
- Solima Sabeel
- International Centre for Genetic Engineering and Biotechnology (ICGEB) Cape Town Component, Cape Town, South Africa
- Institute of Infectious Diseases and Molecular Medicine (IDM), Department of Pathology, Division of Immunology, South African Medical Research Council (SAMRC) Immunology of Infectious Diseases, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Bongani Motaung
- International Centre for Genetic Engineering and Biotechnology (ICGEB) Cape Town Component, Cape Town, South Africa
- Institute of Infectious Diseases and Molecular Medicine (IDM), Department of Pathology, Division of Immunology, South African Medical Research Council (SAMRC) Immunology of Infectious Diseases, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Mumin Ozturk
- International Centre for Genetic Engineering and Biotechnology (ICGEB) Cape Town Component, Cape Town, South Africa
- Institute of Infectious Diseases and Molecular Medicine (IDM), Department of Pathology, Division of Immunology, South African Medical Research Council (SAMRC) Immunology of Infectious Diseases, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Sandra Mukasa
- General Medicine & Global Health, Hatter Institute for Cardiovascular Research in Africa, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Andre Pascal Kengne
- South African Medical Research Council and University of Cape Town, Cape Town, South Africa
| | - Dirk Blom
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Hatter Institute for Cardiovascular Research in Africa, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Karen Sliwa
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Hatter Institute for Cardiovascular Research in Africa, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | | | - Gunar Günther
- University of Namibia School of Medicine, Windhoek, Namibia
- Inselspital Bern, Bern, Switzerland
| | - Robert J Wilkinson
- Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine (IDM), Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Francis Crick Institute, London NW1 1AT, United Kingdom
- Department of Infectious Diseases, Imperial College London, London W12 0NN, United Kingdom
| | | | - Friedrich Thienemann
- General Medicine & Global Health, Hatter Institute for Cardiovascular Research in Africa, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Department of Internal Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Reto Guler
- International Centre for Genetic Engineering and Biotechnology (ICGEB) Cape Town Component, Cape Town, South Africa
- Institute of Infectious Diseases and Molecular Medicine (IDM), Department of Pathology, Division of Immunology, South African Medical Research Council (SAMRC) Immunology of Infectious Diseases, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine (IDM), Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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Zhang Y, Chen C, Chen SJ, Chen XQ, Shuster DJ, Puszczalo PD, Fancher RM, Yang Z, Sinz M, Shen H. Absence of OATP1B (Organic Anion-Transporting Polypeptide) Induction by Rifampin in Cynomolgus Monkeys: Determination Using the Endogenous OATP1B Marker Coproporphyrin and Tissue Gene Expression. J Pharmacol Exp Ther 2020; 375:139-151. [PMID: 32719071 DOI: 10.1124/jpet.120.000139] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 07/14/2020] [Indexed: 12/30/2022] Open
Abstract
Organic anion-transporting polypeptide (OATP) 1B induction is an evolving mechanism of drug disposition and interaction. However, there are contradictory reports describing OATP1B expression in hepatocytes and liver biopsies after administration of an inducer. This study investigated the in vivo effects of the common inducer rifampin (RIF) on the activity and expression of cynomolgus monkey OATP1B1 and OATP1B3 transporters, which are structurally and functionally similar their human OATP1B counterparts. Multiple doses of oral RIF (15 mg/kg) resulted in a steady 3.9-fold increase of CYP3A biomarker, 4β-hydroxycholesterol (4βHC), in the plasma samples collected before each RIF dose during the treatment period (i.e., predose). In contrast, the predose plasma levels of OATP1B biomarkers coproporphyrin (CP) I and CPIII did not change when compared with RIF treatment. The trough concentration, area under plasma concentration-time curve (AUC), and half-life of RIF decreased markedly during RIF treatment, suggesting that RIF induced its own clearance. Consequently, RIF treatment increased CPI and CPIII AUCs substantially after a single administration and, to a lesser extent, after multiple administrations compared with preadministration AUCs. In addition, OATP1B1 and OATP1B3 mRNA expressions were not modulated by RIF treatment (0.85-1.3-fold), whereas CYP3A8 expression was increased 3.7-5.0-fold, which correlated well with the predose levels of CP and 4βHC. Rifampin treatment showed 2.0-3.3-fold increases in P-glycoprotein (P-gp), breast cancer resistance protein (BCRP), and multidrug resistance-associated protein 2 (MRP2) expression in the small intestine. Collectively, these findings indicate that monkey OATP1B and OATP1B3 are not induced by RIF, and further investigation of OATP1B induction by RIF and other nuclear receptor activators in humans is warranted. SIGNIFICANCE STATEMENT: In this study, combined endogenous biomarker and gene expression data suggested that RIF did not induce OATP1B in cynomolgus monkeys. For the first time, the study determines transporter gene expression in the nonhuman primate liver, gut, and kidney tissues after administration of RIF for 7 days, leading to a better understanding of the induction of OATP1B and other major drug transporters. Finally, it provides evidence to strengthen the claim that coproporphyrin is a suitable endogenous probe of OATP1B activity.
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Affiliation(s)
- Yueping Zhang
- Departments of Metabolism and Pharmacokinetics (Y.Z., C.C., R.M.F., Z.Y., M.S., H.S.), Discovery Toxicology (S.-J.C.), Discovery Pharmaceutics (X.-Q.C.), and Veterinary Sciences (D.J.S., P.D.P.), Bristol Myers Squibb Company, Princeton, New Jersey
| | - Cliff Chen
- Departments of Metabolism and Pharmacokinetics (Y.Z., C.C., R.M.F., Z.Y., M.S., H.S.), Discovery Toxicology (S.-J.C.), Discovery Pharmaceutics (X.-Q.C.), and Veterinary Sciences (D.J.S., P.D.P.), Bristol Myers Squibb Company, Princeton, New Jersey
| | - Shen-Jue Chen
- Departments of Metabolism and Pharmacokinetics (Y.Z., C.C., R.M.F., Z.Y., M.S., H.S.), Discovery Toxicology (S.-J.C.), Discovery Pharmaceutics (X.-Q.C.), and Veterinary Sciences (D.J.S., P.D.P.), Bristol Myers Squibb Company, Princeton, New Jersey
| | - Xue-Qing Chen
- Departments of Metabolism and Pharmacokinetics (Y.Z., C.C., R.M.F., Z.Y., M.S., H.S.), Discovery Toxicology (S.-J.C.), Discovery Pharmaceutics (X.-Q.C.), and Veterinary Sciences (D.J.S., P.D.P.), Bristol Myers Squibb Company, Princeton, New Jersey
| | - David J Shuster
- Departments of Metabolism and Pharmacokinetics (Y.Z., C.C., R.M.F., Z.Y., M.S., H.S.), Discovery Toxicology (S.-J.C.), Discovery Pharmaceutics (X.-Q.C.), and Veterinary Sciences (D.J.S., P.D.P.), Bristol Myers Squibb Company, Princeton, New Jersey
| | - Pawel D Puszczalo
- Departments of Metabolism and Pharmacokinetics (Y.Z., C.C., R.M.F., Z.Y., M.S., H.S.), Discovery Toxicology (S.-J.C.), Discovery Pharmaceutics (X.-Q.C.), and Veterinary Sciences (D.J.S., P.D.P.), Bristol Myers Squibb Company, Princeton, New Jersey
| | - R Marcus Fancher
- Departments of Metabolism and Pharmacokinetics (Y.Z., C.C., R.M.F., Z.Y., M.S., H.S.), Discovery Toxicology (S.-J.C.), Discovery Pharmaceutics (X.-Q.C.), and Veterinary Sciences (D.J.S., P.D.P.), Bristol Myers Squibb Company, Princeton, New Jersey
| | - Zheng Yang
- Departments of Metabolism and Pharmacokinetics (Y.Z., C.C., R.M.F., Z.Y., M.S., H.S.), Discovery Toxicology (S.-J.C.), Discovery Pharmaceutics (X.-Q.C.), and Veterinary Sciences (D.J.S., P.D.P.), Bristol Myers Squibb Company, Princeton, New Jersey
| | - Michael Sinz
- Departments of Metabolism and Pharmacokinetics (Y.Z., C.C., R.M.F., Z.Y., M.S., H.S.), Discovery Toxicology (S.-J.C.), Discovery Pharmaceutics (X.-Q.C.), and Veterinary Sciences (D.J.S., P.D.P.), Bristol Myers Squibb Company, Princeton, New Jersey
| | - Hong Shen
- Departments of Metabolism and Pharmacokinetics (Y.Z., C.C., R.M.F., Z.Y., M.S., H.S.), Discovery Toxicology (S.-J.C.), Discovery Pharmaceutics (X.-Q.C.), and Veterinary Sciences (D.J.S., P.D.P.), Bristol Myers Squibb Company, Princeton, New Jersey
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Kaukab I, Shah SNH, Abrar MA, Anwer N, Murtaza G. Influence of Rifampicin Pre-treatment on the In vivo Pharmacokinetics of Metoclopramide in Pakistani Healthy Volunteers Following Concurrent Oral Administration. Curr Drug Metab 2020; 21:301-306. [PMID: 32407272 DOI: 10.2174/1389200221666200514132654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/11/2020] [Accepted: 04/09/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Metoclopramide is metabolized by various cytochrome P450 (CYP) enzymes such as CYP3A4, CYP1A2, CYP2D6, CYP2C9, and CYP2C19. Rifampicin is a non-selective inducer of P-glycoprotein (P-gp) and CYP enzymes such as CYP3A4 and others. OBJECTIVE This study was aimed at the evaluation of rifampicin's enzyme induction effect on the pharmacokinetic parameters of orally administered metoclopramide. METHOD This randomized, single-blind, two-phase cross-over pharmacokinetic study separated by a 4-week washout period was conducted at a single center in Pakistan. It involved twelve Pakistani healthy male volunteers (nonsmokers) divided into two groups. In the reference phase, each volunteer received a single oral dose of 20 mg metoclopramide (Maxolon 10 mg, GlaxoSmithKline, Pakistan), while in the rifampicin-treated phase, each volunteer received 600 mg rifampicin once daily for 6 days through oral route. On day 6, metoclopramide (20 mg) was administered 2 hours after the last pretreatment dose of rifampicin. The serial blood samples were collected on predetermined time points (0, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 14, and 18 h) and analyzed using a validated HPLC method for the determination of pharmacokinetic parameters, i.e. Cmax, Tmax, and AUC0-∞ of metoclopramide. The whole study was monitored by an unblinded clinician for the purpose of volunteer's health safety. RESULTS All the volunteers participated in the study until the end. Twelve healthy Pakistani males having mean age 26.0 (range 20.6-34.1) years and body mass index 25.1 (range 16.2-31.5) kg/m2 were included in this study after taking written informed consent. Rifampicin significantly (P<0.05) decreased the mean Cmax, AUC0-∞ and T1/2 of metoclopramide by 35%, 68%, and 44%, respectively. The laboratory tests did not reveal any significant change in the biochemical, physical, hematological, or urinalytical values before and after metoclopramide treatment. None of the volunteers complained of any discomfort during the study. CONCLUSION Rifampicin noticeably decreased the concentration of plasma metoclopramide. These results give in vivo confirmation of the CYP3A4 involvement in the metoclopramide metabolism, in addition to CYP2D6. Therefore, metoclopramide pharmacokinetics may be clinically affected by rifampicin and other potent enzyme inducers.
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Affiliation(s)
- Iram Kaukab
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Syed Nisar Hussain Shah
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Asad Abrar
- Department of Pharmaceutics, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Naveed Anwer
- Saulat Institute of Pharmaceutical Sciences, Quaid-e-Azam University, Islamabad, Pakistan
| | - Ghulam Murtaza
- Department of Pharmacy, COMSATS Institute of Information Technology, Lahore, Pakistan
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10
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Dutta NK, Bruiners N, Zimmerman MD, Tan S, Dartois V, Gennaro ML, Karakousis PC. Adjunctive Host-Directed Therapy With Statins Improves Tuberculosis-Related Outcomes in Mice. J Infect Dis 2020; 221:1079-1087. [PMID: 31605489 PMCID: PMC7325721 DOI: 10.1093/infdis/jiz517] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 10/08/2019] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Tuberculosis (TB) treatment is lengthy and complicated and patients often develop chronic lung disease. Recent attention has focused on host-directed therapies aimed at optimizing immune responses to Mycobacterium tuberculosis (Mtb), as adjunctive treatment given with antitubercular drugs. In addition to their cholesterol-lowering properties, 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors (statins) have broad anti-inflammatory and immunomodulatory activities. METHODS In the current study, we screened 8 commercially available statins for cytotoxic effect, anti-TB activity, synergy with first-line drugs in macrophages, pharmacokinetics and adjunctive bactericidal activity, and, in 2 different mouse models, as adjunctive therapy to first-line TB drugs. RESULTS Pravastatin showed the least toxicity in THP-1 and Vero cells. At nontoxic doses, atorvastatin and mevastatin were unable to inhibit Mtb growth in THP-1 cells. Simvastatin, fluvastatin, and pravastatin showed the most favorable therapeutic index and enhanced the antitubercular activity of the first-line drugs isoniazid, rifampin, and pyrazinamide in THP-1 cells. Pravastatin modulated phagosomal maturation characteristics in macrophages, phenocopying macrophage activation, and exhibited potent adjunctive activity in the standard mouse model of TB chemotherapy and in a mouse model of human-like necrotic TB lung granulomas. CONCLUSIONS These data provide compelling evidence for clinical evaluation of pravastatin as adjunctive, host-directed therapy for TB.
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Affiliation(s)
- Noton K Dutta
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Natalie Bruiners
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, New Jersey, USA
| | - Matthew D Zimmerman
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, New Jersey, USA
| | - Shumin Tan
- Tufts University School of Medicine, Department of Molecular Biology and Microbiology, Boston, Massachusetts, USA
| | - Véronique Dartois
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, New Jersey, USA
| | - Maria L Gennaro
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, New Jersey, USA
| | - Petros C Karakousis
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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11
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Nozaki Y, Izumi S. Recent advances in preclinical in vitro approaches towards quantitative prediction of hepatic clearance and drug-drug interactions involving organic anion transporting polypeptide (OATP) 1B transporters. Drug Metab Pharmacokinet 2020; 35:56-70. [DOI: 10.1016/j.dmpk.2019.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 09/29/2019] [Accepted: 11/02/2019] [Indexed: 12/26/2022]
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12
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Hafouda Y, Sharma A, Li V, Yesudian PD. Double trouble: ciclosporin-simvastatin coinduced rhabdomyolysis. BMJ Case Rep 2019; 12:12/11/e225971. [PMID: 31772127 DOI: 10.1136/bcr-2018-225971] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
A 73-year-old woman presented with an acute exacerbation of her long-standing psoriasis. Ciclosporin was commenced due to the severity of her symptoms resulting in remission within 2 weeks. Full blood count, urea and electrolytes following initiation of treatment were unremarkable, although she complained of muscle aches, which was attributed to her known multiple sclerosis. Three weeks later she was admitted to the hospital with diarrhoea and vomiting. Repeat blood tests revealed raised creatinine (528 μmol/L (normal range (NR) n=45-84 μmol/L)), urea (32.6 mmol/L (NR 2.5-7.8 mmol/L)) and creatine kinase (6792 IU/L (NR 25-200 IU/L)) levels and reduced estimated glomerular filtration rate of 7. A diagnosis of acute kidney injury secondary to rhabdomyolysis was made due to an interaction between ciclosporin and simvastatin, precipitated by the dehydration from gastroenteritis. Haemofiltration was required to stabilise her renal function and she made a complete recovery.
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Affiliation(s)
- Yakeen Hafouda
- Medicine, Cardiff University School of Medicine, Cardiff, UK
| | | | - Vincent Li
- Dermatology, Wrexham Maelor Hospital, Wrexham, UK
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13
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Niu C, Wang Y, Zhao X, Tep S, Murakami E, Subramanian R, Smith B, Lai Y. Organic Anion-Transporting Polypeptide Genes Are Not Induced by the Pregnane X Receptor Activator Rifampin: Studies in Hepatocytes In Vitro and in Monkeys In Vivo. Drug Metab Dispos 2019; 47:1433-1442. [PMID: 31582395 DOI: 10.1124/dmd.119.088922] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 09/27/2019] [Indexed: 12/27/2022] Open
Abstract
Induction potentials of the pregnane X receptor (PXR) activator rifampin (RIF) on transporter genes [e.g., organic anion-transporting polypeptides (OATPs)] are still in its infancy or remain controversial in the field. The present investigations characterized changes in transporter gene expression by RIF in sandwich-cultured hepatocytes from multiple donors of human and cynomolgus monkey using real-time quantitative reverse transcription polymerase chain reaction method. Three-day treatment of RIF significantly induced CYP3A4 (∼60-fold induction), but not CYP1A2 and CYP2D6 genes. SLC51B was the most highly induced uptake transporter gene (>10-fold) in both human and monkey hepatocytes. A greater induction of CYP2C9 was observed in monkey hepatocytes than that in humans. ATP-binding cassette (ABC)B1 and ABCC2 were induced slightly above 2-fold in human and monkey hepatocytes and appeared to be dose-dependent. The induction of OATP and other transporter genes was generally less than 2-fold and considered not clinically relevant. SLCO2B1 was not detectable in monkey hepatocytes. To investigate in vivo OATP induction, RIF (18 mg/kg per day) was orally dosed to cynomolgus monkeys for 7 days. Pitavastatin and antipyrine were intravenously dosed before and after RIF treatment as exogenous probes of OATP and CYP activities, respectively. Plasma coproporphyrin-I (CP-I) and coproporphyrin-III (CP-III) were measured as OATP endogenous biomarkers. Although a significant increase of antipyrine clearance (CL) was observed after RIF treatment, the plasma exposures of pitavastatin, CP-I, and CP-III remained unchanged, suggesting that OATP function was not significantly altered. The results suggested that OATP transporters were not significantly induced by PXR ligand RIF. The data are consistent with current regulatory guidances that the in vitro characterization of transporter induction during drug development is not required. SIGNIFICANCE STATEMENT: Organic anion-transporting polypeptide (OATP) genes were not induced by rifampin in sandwich-cultured human and monkey hepatocytes OATP functions measured by OATP probe pitavastatin and endogenous marker coproporphyrins were not altered in monkeys in vivo by 7-day rifampin treatment. The data suggested that OATP transporters are unlikely induced by the pregnane X receptor ligand rifampin, which are consistent with current regulatory guidances that the in vitro characterization of OATP1B induction during drug development is not required.
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Affiliation(s)
- Congrong Niu
- Drug Metabolism, Gilead Sciences, Foster City, California
| | - Yujin Wang
- Drug Metabolism, Gilead Sciences, Foster City, California
| | - Xiaofeng Zhao
- Drug Metabolism, Gilead Sciences, Foster City, California
| | - Sam Tep
- Drug Metabolism, Gilead Sciences, Foster City, California
| | | | | | - Bill Smith
- Drug Metabolism, Gilead Sciences, Foster City, California
| | - Yurong Lai
- Drug Metabolism, Gilead Sciences, Foster City, California
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Asaumi R, Menzel K, Lee W, Nunoya KI, Imawaka H, Kusuhara H, Sugiyama Y. Expanded Physiologically-Based Pharmacokinetic Model of Rifampicin for Predicting Interactions With Drugs and an Endogenous Biomarker via Complex Mechanisms Including Organic Anion Transporting Polypeptide 1B Induction. CPT-PHARMACOMETRICS & SYSTEMS PHARMACOLOGY 2019; 8:845-857. [PMID: 31420941 PMCID: PMC6875706 DOI: 10.1002/psp4.12457] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 07/08/2019] [Indexed: 02/01/2023]
Abstract
As rifampicin can cause the induction and inhibition of multiple metabolizing enzymes and transporters, it has been challenging to accurately predict the complex drug–drug interactions (DDIs). We previously constructed a physiologically‐based pharmacokinetic (PBPK) model of rifampicin accounting for the components for the induction of cytochrome P450 (CYP) 3A/CYP2C9 and the inhibition of organic anion transporting polypeptide 1B (OATP1B). This study aimed to expand and verify the PBPK model for rifampicin by incorporating additional components for the induction of OATP1B and CYP2C8 and the inhibition of multidrug resistance protein 2. The established PBPK model was capable of accurately predicting complex rifampicin‐induced alterations in the profiles of glibenclamide, repaglinide, and coproporphyrin I (an endogenous biomarker of OATP1B activities) with various dosing regimens. Our comprehensive rifampicin PBPK model may enable quantitative prediction of DDIs across diverse potential victim drugs and endogenous biomarkers handled by multiple metabolizing enzymes and transporters.
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Affiliation(s)
- Ryuta Asaumi
- Pharmacokinetic Research Laboratories, Ono Pharmaceutical Co., Ltd., Tsukuba, Japan
| | | | - Wooin Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Ken-Ichi Nunoya
- Pharmacokinetic Research Laboratories, Ono Pharmaceutical Co., Ltd., Tsukuba, Japan
| | - Haruo Imawaka
- Pharmacokinetic Research Laboratories, Ono Pharmaceutical Co., Ltd., Tsukuba, Japan
| | - Hiroyuki Kusuhara
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuichi Sugiyama
- Sugiyama Laboratory, RIKEN Baton Zone Program, RIKEN Cluster for Science, Technology and Innovation Hub, RIKEN, Yokohama, Japan
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15
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Kaneko KI, Tanaka M, Ishii A, Katayama Y, Nakaoka T, Irie S, Kawahata H, Yamanaga T, Wada Y, Miyake T, Toshimoto K, Maeda K, Cui Y, Enomoto M, Kawamura E, Kawada N, Kawabe J, Shiomi S, Kusuhara H, Sugiyama Y, Watanabe Y. A Clinical Quantitative Evaluation of Hepatobiliary Transport of [ 11C]Dehydropravastatin in Humans Using Positron Emission Tomography. Drug Metab Dispos 2018; 46:719-728. [PMID: 29555827 DOI: 10.1124/dmd.118.080408] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 03/13/2018] [Indexed: 12/25/2022] Open
Abstract
Various positron emission tomography (PET) probes have been developed to assess in vivo activities in humans of drug transporters, which aid in the prediction of pharmacokinetic properties of drugs and the impact of drug-drug interactions. We developed a new PET probe, sodium (3R, 5R)-3, 5-dihydroxy-7-((1S, 2S, 6S, 8S)-6-hydroxy-2-methyl-8- ((1-[11C]-(E)-2-methyl-but-2-enoyl) oxy) -1, 2, 6, 7, 8, 8a-hexahydronaphthalen-1-yl) heptanoate ([11C]DPV), and demonstrated its usefulness for the quantitative investigation of Oatps (gene symbol SLCO) and Mrp2 (gene symbol ABCC2) in rats. To further analyze the species differences and verify the pharmacokinetic parameters in humans, serial PET scanning of the abdominal region with [11C]DPV was performed in six healthy volunteers with and without an OATP1Bs and MRP2 inhibitor, rifampicin (600 mg, oral), in a crossover fashion. After intravenous injection, [11C]DPV rapidly distributed to the liver and kidney followed by secretion into the bile and urine. Rifampicin significantly reduced the liver distribution of [11C]DPV 3-fold, resulting in a 7.5-fold reduced amount of excretion into the bile and the delayed elimination of [11C]DPV from the blood circulation. The hepatic uptake clearance (CLuptake, liver) and canalicular efflux clearance (CLint, bile) of [11C]DPV (544 ± 204 and 10.2 ± 3.5 µl/min per gram liver, respectively) in humans were lower than the previously reported corresponding parameters in rats (1800 and 298 µl/min per gram liver, respectively) (Shingaki et al., 2013). Furthermore, rifampicin treatment significantly reduced CLuptake, liver and CLint, bile by 58% and 44%, respectively. These results suggest that PET imaging with [11C]DPV is an effective tool for quantitatively characterizing the OATP1Bs and MRP2 functions in the human hepatobiliary transport system.
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Affiliation(s)
| | - Masaaki Tanaka
- Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, Japan
| | - Akira Ishii
- Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, Japan
| | - Yumiko Katayama
- RIKEN Center for Life Science Technologies , Kobe, Japan,RIKEN Center for Molecular imaging Sciences, Kobe, Japan
| | | | - Satsuki Irie
- RIKEN Center for Life Science Technologies , Kobe, Japan
| | - Hideki Kawahata
- Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, Japan
| | - Takashi Yamanaga
- Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, Japan
| | - Yasuhiro Wada
- RIKEN Center for Life Science Technologies , Kobe, Japan,RIKEN Center for Molecular imaging Sciences, Kobe, Japan
| | - Takeshi Miyake
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
| | - Kota Toshimoto
- Sugiyama Laboratory, RIKEN Innovation Center, Kanagawa, Japan
| | - Kazuya Maeda
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
| | - Yilong Cui
- RIKEN Center for Life Science Technologies , Kobe, Japan,RIKEN Center for Molecular imaging Sciences, Kobe, Japan
| | - Masaru Enomoto
- Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, Japan
| | - Etsushi Kawamura
- Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, Japan
| | - Norifumi Kawada
- Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, Japan
| | - Joji Kawabe
- Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, Japan
| | - Susumu Shiomi
- Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, Japan
| | - Hiroyuki Kusuhara
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
| | - Yuichi Sugiyama
- Sugiyama Laboratory, RIKEN Innovation Center, Kanagawa, Japan
| | - Yasuyoshi Watanabe
- RIKEN Center for Life Science Technologies , Kobe, Japan,RIKEN Center for Molecular imaging Sciences, Kobe, Japan
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16
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Pahwa S, Alam K, Crowe A, Farasyn T, Neuhoff S, Hatley O, Ding K, Yue W. Pretreatment With Rifampicin and Tyrosine Kinase Inhibitor Dasatinib Potentiates the Inhibitory Effects Toward OATP1B1- and OATP1B3-Mediated Transport. J Pharm Sci 2017; 106:2123-2135. [PMID: 28373111 PMCID: PMC5511785 DOI: 10.1016/j.xphs.2017.03.022] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 03/08/2017] [Accepted: 03/27/2017] [Indexed: 10/19/2022]
Abstract
Present studies determined the effects of pretreatment with rifampicin, an organic anion-transporting polypeptide (OATP) inhibitor, and the tyrosine kinase inhibitor dasatinib on OATP1B1- and OATP1B3-mediated transport, and evaluated the OATP-mediated drug-drug interaction potential of dasatinib using the static R-value and dynamic physiologically based pharmacokinetic models. Rifampicin and dasatinib pretreatment significantly decreased OATP1B1- and OATP1B3-mediated transport. Rifampicin pretreatment also significantly decreased [3H]-pitavastatin and [3H]-CCK-8 accumulation in human sandwich-cultured hepatocytes. Present studies revealed that estrone-3-sulfate is a less-sensitive OATP1B1 substrate than estradiol-17β-glucuronide in assessing rifampicin pretreatment effects. Pretreatment with rifampicin and dasatinib reduced the inhibition constant (Ki) values against OATP1B1 by 3 and 2.1 fold and against OATP1B3 by 2.4 and 2.1 fold, respectively. The in vitro rifampicin Ki values after preincubation are comparable to the estimated in vivo Ki reported previously. Models predict that dasatinib has a low potential to cause OATP1B1- and OATP1B3-mediated drug-drug interactions. Time-lapse confocal microscopy demonstrated that rifampicin and dasatinib pretreatment did not affect plasma membrane localization of green-fluorescent protein-tagged OATP1B1 (GFP-OATP1B1) and GFP-OATP1B3 in human embryonic kidney 293 stable cell lines. In summary, we report novel findings that pretreatment with rifampicin and dasatinib potentiates the inhibitory effects toward OATP1B1 and OATP1B3 without affecting plasma membrane levels of the transporters.
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Affiliation(s)
- Sonia Pahwa
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73117
| | - Khondoker Alam
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73117
| | - Alexandra Crowe
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73117
| | - Taleah Farasyn
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73117
| | - Sibylle Neuhoff
- Simcyp Limited (a Certara Company), Blades Enterprise Centre, Sheffield S2 4SU, UK
| | - Oliver Hatley
- Simcyp Limited (a Certara Company), Blades Enterprise Centre, Sheffield S2 4SU, UK
| | - Kai Ding
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73126
| | - Wei Yue
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73117.
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Dutta NK, Bruiners N, Pinn ML, Zimmerman MD, Prideaux B, Dartois V, Gennaro ML, Karakousis PC. Statin adjunctive therapy shortens the duration of TB treatment in mice. J Antimicrob Chemother 2016; 71:1570-7. [PMID: 26903278 DOI: 10.1093/jac/dkw014] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 01/11/2016] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The repurposing of existing agents may accelerate TB drug development. Recently, we reported that the lipid-lowering drug simvastatin, when added to the first-line antitubercular regimen, reduces the lung bacillary burden in chronically infected mice. OBJECTIVES We investigated whether the addition of simvastatin to the first-line regimen (isoniazid/rifampicin/pyrazinamide) shortens the duration of curative TB treatment in mice. METHODS Mycobacterium tuberculosis-infected THP-1 cells were exposed to simvastatin to determine the effect of statins on the activity of first-line anti-TB drug activity and intracellular rifampicin concentration. Single-dose and steady-state pharmacokinetic studies guided optimized simvastatin dosing in vivo. BALB/c mice were aerosol-infected with M. tuberculosis H37Rv and drug treatment was initiated 6 weeks post-infection. Separate groups of mice received standard TB treatment with or without simvastatin. Relapse rates were assessed 3 months after discontinuation of each treatment regimen. MALDI-MS imaging was used to image the cholesterol content of mouse lung lesions. RESULTS Simvastatin significantly enhanced the bactericidal activity of first-line drugs against intracellular M. tuberculosis without altering intracellular rifampicin concentrations. Adjunctive treatment with 60 mg/kg simvastatin shortened the time required to achieve culture-negative lungs from 4.5 to 3.5 months. Following 2.5, 3.5 and 4.5 months of treatment, relapse rates were 100%, 50% and 0%, respectively, in the control group and 50% (P = 0.03), 20% and 0%, respectively, in the statin group. Simvastatin did not alter plasma or lung lesion cholesterol levels. CONCLUSIONS Statins are attractive candidates for host-directed, adjunctive TB therapy. Further preclinical studies are needed to define the optimal statin and dosing.
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Affiliation(s)
- Noton K Dutta
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Natalie Bruiners
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, NJ, USA
| | - Michael L Pinn
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Matthew D Zimmerman
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, NJ, USA
| | - Brendan Prideaux
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, NJ, USA
| | - Véronique Dartois
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, NJ, USA
| | - Maria L Gennaro
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, NJ, USA
| | - Petros C Karakousis
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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Hirota T, Ieiri I. Drug-drug interactions that interfere with statin metabolism. Expert Opin Drug Metab Toxicol 2015; 11:1435-47. [PMID: 26058399 DOI: 10.1517/17425255.2015.1056149] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Lipid-lowering drugs, especially hydroxymethylglutaryl-CoA reductase inhibitors (statins), are widely used in the treatment and prevention of atherosclerotic diseases. The benefits of statins are well documented. However, myotoxic side effects, which can sometimes be severe, including myopathy or rhabdomyolysis, have been associated with the use of statins. In some cases, this toxicity is associated with pharmacokinetic alterations. Potent inhibitors of CYP 3A4 significantly increase plasma concentrations of the active forms of simvastatin, lovastatin and atorvastatin. Fluvastatin is metabolized by CYP2C9, while pravastatin, rosuvastatin and pitavastatin are not susceptible to inhibition by any CYP. AREAS COVERED This review discusses the pharmacokinetic aspects of the drug-drug interaction with statins and genetic polymorphisms in CYPs, which are involved in the metabolism of statins, and highlights the importance of establishing a system utilizing electronic medical information practically to avoid adverse drug reactions. EXPERT OPINION An understanding of the mechanisms underlying statin interactions will help to minimize drug interactions and develop statins that are less prone to adverse interactions. Quantitatively analyzed information for the low-density lipoprotein cholesterol lowering effects of statin based on electronic medical records may be useful for avoiding the adverse effect of statins.
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Affiliation(s)
- Takeshi Hirota
- a Kyushu University, Division of Clinical Pharmacy, Graduate School of Pharmaceutical Sciences, Department of Clinical Pharmacokinetics , Fukuoka 8128582, Japan +81 92 642 6657 ; +81 92 642 6660 ;
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Christiansen ML, Müllertz A, Garmer M, Kristensen J, Jacobsen J, Abrahamsson B, Holm R. Evaluation of the Use of Göttingen Minipigs to Predict Food Effects on the Oral Absorption of Drugs in Humans. J Pharm Sci 2015; 104:135-43. [DOI: 10.1002/jps.24270] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Revised: 10/28/2014] [Accepted: 10/29/2014] [Indexed: 01/08/2023]
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20
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Hu M, Tomlinson B. Evaluation of the pharmacokinetics and drug interactions of the two recently developed statins, rosuvastatin and pitavastatin. Expert Opin Drug Metab Toxicol 2013; 10:51-65. [PMID: 24156555 DOI: 10.1517/17425255.2014.851667] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Statins are the cornerstone of lipid-lowering therapy to reduce the risk of coronary heart disease. Rosuvastatin and pitavastatin are the two recently developed statins with less potential for drug interaction resulting in improved safety profiles. AREAS COVERED This review summarizes the pharmacokinetics and drug interactions of rosuvastatin and pitavastatin. The materials reviewed were identified by searching PubMed for publications using 'rosuvastatin', 'pitavastatin', 'statins', 'pharmacokinetics' and 'drug interaction' as the search terms. EXPERT OPINION Rosuvastatin and pitavastatin have favorable pharmacokinetic and safety profiles as their disposition does not depend on or is only marginally influenced by cytochrome P450 (CYP) enzymes, thus potentially reducing the risk of drug-drug interactions of these two statins with other drugs known to inhibit CYP enzymes. However, drug transporters play a significant role in the disposition of rosuvastatin and pitavastatin and drug interactions may occur through these. Genetic polymorphisms in drug transporters may also affect the pharmacokinetics, drug interactions and/or the lipid-lowering effect of these statins to a different extent.
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Affiliation(s)
- Miao Hu
- The Chinese University of Hong Kong, Department of Medicine & Therapeutics , Shatin , Hong Kong SAR
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Shingaki T, Takashima T, Ijuin R, Zhang X, Onoue T, Katayama Y, Okauchi T, Hayashinaka E, Cui Y, Wada Y, Suzuki M, Maeda K, Kusuhara H, Sugiyama Y, Watanabe Y. Evaluation of Oatp and Mrp2 Activities in Hepatobiliary Excretion Using Newly Developed Positron Emission Tomography Tracer [11C]Dehydropravastatin in Rats. J Pharmacol Exp Ther 2013; 347:193-202. [DOI: 10.1124/jpet.113.206425] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Misaka S, Miyazaki N, Yatabe MS, Ono T, Shikama Y, Fukushima T, Kimura J. Pharmacokinetic and pharmacodynamic interaction of nadolol with itraconazole, rifampicin and grapefruit juice in healthy volunteers. J Clin Pharmacol 2013; 53:738-45. [PMID: 23677858 DOI: 10.1002/jcph.95] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 04/10/2013] [Indexed: 11/08/2022]
Abstract
To evaluate effects of itraconazole, rifampicin and grapefruit juice on pharmacokinetics and pharmacodynamics of a hydrophilic non-selective β-adrenoceptor blocker nadolol, we conducted an open-label, four-way crossover study in 10 healthy male volunteers. A single oral dose of 30 mg nadolol was administered with water (control), itraconazole (100 mg), or grapefruit juice (300 mL), or after a 6-day pretreatment with rifampicin (450 mg/day). Plasma concentrations and urinary excretions of nadolol were measured over 48 hours after its dosing. Systolic and diastolic blood pressures and pulse rate were periodically recorded after nadolol administration as pharmacodynamic parameters. Itraconazole increased the peak plasma concentration and the area under the plasma concentration-time curve (AUC0-∞ ) of nadolol by 468% and 224% of control, respectively (P < .001). A slight, but not statistically significant, decrease in AUC0-∞ of nadolol was observed in rifampicin and grapefruit juice phases as compared to control. Elimination half-life for nadolol did not differ among the four phases. During itraconazole phase, nadolol reduced pharmacodynamic parameters to a greater extent than the other phases. These results suggest that itraconazole substantially increases the oral availability of nadolol possibly by the inhibition of intestinal P-glycoprotein, whereas grapefruit juice has little effect on nadolol pharmacokinetics.
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Affiliation(s)
- Shingen Misaka
- Department of Pharmacology, School of Medicine, Fukushima Medical University, Fukushima, Japan.
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Abstract
BACKGROUND Rifampin is a potent inducer of both cytochrome P-450 oxidative enzymes and the P-glycoprotein transport system. Among numerous well documented, clinically significant interactions, examples include warfarin, oral contraceptives, itraconazole, digoxin, verapamil, simvastatin, and human immunodeficiency virus-related protease inhibitors. Rifabutin reduces serum concentrations of antiretroviral agents, but less so than rifampin. Rifapentine is also an inducer of drug metabolism. METHODS A literature search of English language journals from 2008 to March 2012 was completed using several databases, including PubMed, EMBASE, and SCOPUS. Search terms included rifampin, rifabutin, rifapentine AND drug interactions. FINDINGS Examples of clinically relevant interactions with rifampin demonstrated by recent reports include posaconazole, voriconazole, oxycodone, risperidone, mirodenafil, and ebastine. CONCLUSIONS To avoid a reduced therapeutic response, therapeutic failure, or toxic reactions when rifampin, rifabutin, or rifapentine are added to or discontinued from medication regimens, clinicians need to be aware of these interactions. Recent studies have indicated that other transporter systems play a role in these drug interactions. As reports of rifampin drug interactions continue to grow, this review is a reminder to clinicians to be vigilant.
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Koenen A, Kroemer HK, Grube M, Meyer zu Schwabedissen HE. Current understanding of hepatic and intestinal OATP-mediated drug-drug interactions. Expert Rev Clin Pharmacol 2012; 4:729-42. [PMID: 22111859 DOI: 10.1586/ecp.11.58] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
At present, many patients are medicated with various drugs, which are, at the same time, associated with an increased risk of drug-drug interactions (DDIs). Detailed analysis of mechanisms underlying DDIs is the basis of a better prediction of adverse drug events caused by drug interactions. In the last few decades, an involvement of transporters in such processes has been more and more recognized. Indeed, uptake transporters belonging to the organic anion-transporting polypeptide (OATP) family have been shown to interact with a variety of drugs in clinical use. Particularly, the subfamily of OATP1B transporters has been extensively studied, identifying several clinical significant DDIs based on those hepatic uptake transporters. By contrast, the role of OATP2B1 in this context is rather underestimated. Therefore, in addition to known interactions based on OATP1B transporters, we have focused on DDIs probably based on OATP2B1 inhibition in the liver and those possibly owing to the inhibition of OATP2B1-mediated drug absorption in the intestine.
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Affiliation(s)
- Anna Koenen
- Institute of Pharmacology, Ernst Moritz Arndt University, Friedrich-Loeffler-Straße 23, 17487 Greifswald, Germany
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Iusuf D, Sparidans RW, van Esch A, Hobbs M, Kenworthy KE, van de Steeg E, Wagenaar E, Beijnen JH, Schinkel AH. Organic anion-transporting polypeptides 1a/1b control the hepatic uptake of pravastatin in mice. Mol Pharm 2012; 9:2497-504. [PMID: 22812517 DOI: 10.1021/mp300108c] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Organic anion-transporting polypeptides (OATPs) mediate the hepatic uptake of many drugs. Hepatic uptake is crucial for the therapeutic effect of pravastatin, a cholesterol-lowering drug and OATP1A/1B substrate. We aimed to gain empirical insight into the relationship between OATPs and pravastatin pharmacokinetics and toxicity. We therefore compared the distribution and toxicity of pravastatin in wild-type and Oatp1a/1b-null mice. Intestinal absorption of pravastatin was not affected by Oatp1a/1b absence, but systemic plasma exposure (AUC) increased up to 30-fold after oral bolus administration. This increased plasma exposure resulted from reduced hepatic uptake, as evident from 10 to 100-fold lower liver-to-plasma concentration ratios. However, the reductions in liver exposure were far smaller (<2-fold) than the increases in plasma exposure. Reduced pravastatin liver uptake in Oatp1a/1b-null mice was more obvious shortly after intravenous administration, with 8-fold lower biliary pravastatin excretion. Although mice chronically exposed to pravastatin for 60 days evinced little muscular toxicity, Oatp1a/1b-null mice displayed 10-fold higher plasma concentrations and 8-fold lower liver concentrations than wild-type mice. Thus, Oatp1a/1b transporters importantly control the hepatic uptake of pravastatin. Activity-reducing human OATP1B polymorphisms may therefore both reduce pravastatin therapeutic efficacy in the liver and increase systemic toxicity risks, thus compromising its therapeutic index in a two-edged way.
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Affiliation(s)
- Dilek Iusuf
- Division of Molecular Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
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Physiologically Based Modeling of Pravastatin Transporter-Mediated Hepatobiliary Disposition and Drug-Drug Interactions. Pharm Res 2012; 29:2860-73. [DOI: 10.1007/s11095-012-0792-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Accepted: 05/16/2012] [Indexed: 12/29/2022]
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Neuvonen PJ. Towards Safer and More Predictable Drug Treatment - Reflections from Studies of the First BCPT Prize Awardee. Basic Clin Pharmacol Toxicol 2012; 110:207-18. [DOI: 10.1111/j.1742-7843.2012.00858.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Pertti J. Neuvonen
- Department of Clinical Pharmacology; University of Helsinki, and HUSLAB, Helsinki University Central Hospital; Helsinki; Finland
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Bolhuis MS, Panday PN, Pranger AD, Kosterink JGW, Alffenaar JWC. Pharmacokinetic drug interactions of antimicrobial drugs: a systematic review on oxazolidinones, rifamycines, macrolides, fluoroquinolones, and Beta-lactams. Pharmaceutics 2011; 3:865-913. [PMID: 24309312 PMCID: PMC3857062 DOI: 10.3390/pharmaceutics3040865] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2011] [Revised: 10/26/2011] [Accepted: 11/09/2011] [Indexed: 12/17/2022] Open
Abstract
Like any other drug, antimicrobial drugs are prone to pharmacokinetic drug interactions. These drug interactions are a major concern in clinical practice as they may have an effect on efficacy and toxicity. This article provides an overview of all published pharmacokinetic studies on drug interactions of the commonly prescribed antimicrobial drugs oxazolidinones, rifamycines, macrolides, fluoroquinolones, and beta-lactams, focusing on systematic research. We describe drug-food and drug-drug interaction studies in humans, affecting antimicrobial drugs as well as concomitantly administered drugs. Since knowledge about mechanisms is of paramount importance for adequate management of drug interactions, the most plausible underlying mechanism of the drug interaction is provided when available. This overview can be used in daily practice to support the management of pharmacokinetic drug interactions of antimicrobial drugs.
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Affiliation(s)
- Mathieu S Bolhuis
- Department of Hospital and Clinical Pharmacy, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands.
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García-Sabina A, Gulín-Dávila J, Sempere-Serrano P, González-Juanatey C, Martínez-Pacheco R. [Specific considerations on the prescription and therapeutic interchange of statins]. FARMACIA HOSPITALARIA 2011; 36:97-108. [PMID: 21820929 DOI: 10.1016/j.farma.2011.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2010] [Revised: 02/07/2011] [Accepted: 02/16/2011] [Indexed: 10/17/2022] Open
Abstract
OBJECTIVE The pharmaceutical industry currently offers six different statins in Spain and there is one more soon to be available. Choosing the most appropriate drug and dose is determined by the therapeutic target (reduction in LDL-C levels). Statin doses that decrease LDL-C at the same percentage are considered equivalent. Evaluating the pharmacokinetic characteristics of each statin can be useful when setting selection criteria, helping to determine which statin may be more appropriate for a patient based on their individual characteristics and on the other co-administered drugs. METHODS We reviewed the pharmacokinetics properties of each statin and its possible involvement in drug interactions. RESULTS CYP3A4 was responsible for the metabolism of lovastatin, simvastatin and atorvastatin; fluvastatin depends on CYP2C9; P-glycoprotein is responsible for decreased atorvastatin, pravastatin, simvastatin and lovastatin concentrations. The OATPA1B1 transporter involved in all statins' access to the hepatocyte, except for fluvastatin, is essential for rosuvastatin and pravastatin. These circumstances cause those drugs inhibiting or inducing isoenzymes or transporters' activity not to have the same effect on the different statins. CONCLUSION The pharmacokinetics is important when choosing the best statin and could be a limitation in the use of interchange therapeutic programmes when other drugs are present.
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Affiliation(s)
- A García-Sabina
- Servicio de Farmacia, Hospital Universitario Lucus Augusti, Lugo, España.
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Harisa GEDI, Ibrahim MF, Alanazi FK. Characterization of human erythrocytes as potential carrier for pravastatin: an in vitro study. Int J Med Sci 2011; 8:222-30. [PMID: 21448309 PMCID: PMC3065791 DOI: 10.7150/ijms.8.222] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Accepted: 02/18/2011] [Indexed: 11/06/2022] Open
Abstract
Drug delivery systems including chemical, physical and biological agents that enhance the bioavailability, improve pharmacokinetics and reduce toxicities of the drugs. Carrier erythrocytes are one of the most promising biological drug delivery systems investigated in recent decades. The bioavailability of statin drugs is low due the effects of P-glycoprotein in the gastro-intestinal tract as well as the first-pass metabolism. Therefore in this work we study the effect of time, temperature as well as concentration on the loading of pravastatin in human erythrocytes to be using them as systemic sustained release delivery system for this drug. After the loading process is performed the carriers' erythrocytes were physically and cellulary characterized. Also, the in vitro release of pravastatin from carrier erythrocytes was studied over time interval. Our results revealed that, human erythrocytes have been successfully loaded with pravastatin using endocytosis method either at 25(o)C or at 37(o)C. The loaded amount at 10 mg/ml is 0.32 mg/0.1 ml and 0.69 mg/0.1 ml. Entrapment efficiency is 34% and 94% at 25(o)C and 37(o)C respectively at drug concentration 4 mg/ml. Moreover the percent of cells recovery is 87-93%. Hematological parameters and osmotic fragility behavior of pravastatin loaded erythrocytes were similar that of native erythrocytes. Scanning electron microscopy demonstrated that the pravastatin loaded cells has no change in the morphology. Pravastatin releasing from carrier cell was 83% after 23 hours in phosphate buffer saline and decreased to 72% by treatment of carrier cells with glutaraldehyde. The releasing pattern of the drug from loaded erythrocytes obeyed first order kinetics. It concluded that pravastatin is successfully entrapped into erythrocytes with acceptable loading parameters and moderate morphological changes, this suggesting that erythrocytes can be used as prolonged release for pravastatin.
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Affiliation(s)
- Gamal El-din I Harisa
- Department of Pharmaceutics, College of Pharmacy, King Saud University, PO Box 2457, Riyadh 11451, Saudi Arabia
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Niemi M, Pasanen MK, Neuvonen PJ. Organic anion transporting polypeptide 1B1: a genetically polymorphic transporter of major importance for hepatic drug uptake. Pharmacol Rev 2011; 63:157-81. [PMID: 21245207 DOI: 10.1124/pr.110.002857] [Citation(s) in RCA: 463] [Impact Index Per Article: 35.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The importance of membrane transporters for drug pharmacokinetics has been increasingly recognized during the last decade. Organic anion transporting polypeptide 1B1 (OATP1B1) is a genetically polymorphic influx transporter expressed on the sinusoidal membrane of human hepatocytes, and it mediates the hepatic uptake of many endogenous compounds and xenobiotics. Recent studies have demonstrated that OATP1B1 plays a major, clinically important role in the hepatic uptake of many drugs. A common single-nucleotide variation (coding DNA c.521T>C, protein p.V174A, rs4149056) in the SLCO1B1 gene encoding OATP1B1 decreases the transporting activity of OATP1B1, resulting in markedly increased plasma concentrations of, for example, many statins, particularly of active simvastatin acid. The variant thereby enhances the risk of statin-induced myopathy and decreases the therapeutic indexes of statins. However, the effect of the SLCO1B1 c.521T>C variant is different on different statins. The same variant also markedly affects the pharmacokinetics of several other drugs. Furthermore, certain SLCO1B1 variants associated with an enhanced clearance of methotrexate increase the risk of gastrointestinal toxicity by methotrexate in the treatment of children with acute lymphoblastic leukemia. Certain drugs (e.g., cyclosporine) potently inhibit OATP1B1, causing clinically significant drug interactions. Thus, OATP1B1 plays a major role in the hepatic uptake of drugs, and genetic variants and drug interactions affecting OATP1B1 activity are important determinants of individual drug responses. In this article, we review the current knowledge about the expression, function, substrate characteristics, and pharmacogenetics of OATP1B1 as well as its role in drug interactions, in parts comparing with those of other hepatocyte-expressed organic anion transporting polypeptides, OATP1B3 and OATP2B1.
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Affiliation(s)
- Mikko Niemi
- Department of Clinical Pharmacology, University of Helsinki, PO Box 20, Helsinki, FI-00014, Finland.
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Reitman ML, Chu X, Cai X, Yabut J, Venkatasubramanian R, Zajic S, Stone JA, Ding Y, Witter R, Gibson C, Roupe K, Evers R, Wagner JA, Stoch A. Rifampin's acute inhibitory and chronic inductive drug interactions: experimental and model-based approaches to drug-drug interaction trial design. Clin Pharmacol Ther 2010; 89:234-42. [PMID: 21191377 DOI: 10.1038/clpt.2010.271] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We studied the time course for the reversal of rifampin's effect on the pharmacokinetics of oral midazolam (a cytochrome P450 (CYP) 3A4 substrate) and digoxin (a P-glycoprotein (P-gp) substrate). Rifampin increased midazolam metabolism, greatly reducing the area under the concentration-time curve (AUC(0-∞)). The midazolam AUC(0-∞) returned to baseline with a half-life of ~8 days. Rifampin's effect on the AUC(0-3 h) of digoxin was biphasic: the AUC(0-3 h) increased with concomitant dosing of the two drugs but decreased when digoxin was administered after rifampin. Digoxin was found to be a weak substrate of organic anion-transporting polypeptide (OATP) 1B3 in transfected cells. Although the drug was transported into isolated hepatocytes, it is not likely that this transport was through OATP1B3 because the transport was not inhibited by rifampin. However, rifampin did inhibit the P-gp-mediated transport of digoxin with a half-maximal inhibitory concentration (IC(50)) below anticipated gut lumen concentrations, suggesting that rifampin inhibits digoxin efflux from the enterocyte to the intestinal lumen. Pharmacokinetic modeling suggested that the effects on digoxin are consistent with a combination of inhibitory and inductive effects on gut P-gp. These results suggest modifications to drug-drug interaction (DDI) trial designs.
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Affiliation(s)
- M L Reitman
- Clinical Pharmacology, Merck Research Laboratories, Rahway, New Jersey, USA.
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Kusuhara H, Sugiyama Y. Pharmacokinetic modeling of the hepatobiliary transport mediated by cooperation of uptake and efflux transporters. Drug Metab Rev 2010; 42:539-50. [PMID: 20175646 DOI: 10.3109/03602530903491824] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Hepatocytes express various transporters in the sinusoidal and canalicular membrane, which mediate hepatic uptake and canalicular efflux, forming directional transport from the sinusoid to the bile. Drug-drug interactions and genetic polymorphisms of the transporters are known to cause variations in transporter function. This review focuses on pharmacokinetic modeling of hepatobiliary transport of drugs to explain the alteration of the disposition of drugs caused by such variations, based on the clearance concept. For modeling and simulation, pravastatin and dibromosulfophthalein have been used as model compounds which are known to undergo transpoter-mediated hepatic uptake followed by biliary excretion. Pharmacokinetic modeling of hepatobiliary transport illustrates the concept of the rate-determining process in overall hepatobiliary transport.
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Effect of single-dose rifampin on the pharmacokinetics of warfarin in healthy volunteers. Clin Pharmacol Ther 2010; 88:540-7. [PMID: 20703222 DOI: 10.1038/clpt.2010.142] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Based on in vitro rat and human hepatocyte uptake studies showing inhibition of warfarin uptake in the presence of the nonspecific organic anion-transporting polypeptide (OATP) inhibitor rifampin, a clinical study was conducted in 10 healthy volunteers to examine the in vivo relevance of OATP hepatic uptake on the pharmacokinetics of warfarin. In a randomized, single-dose, two-period, crossover design, subjects received a 7.5-mg dose of warfarin, either alone or immediately following a 600-mg intravenous dose of rifampin. Rifampin did not significantly alter the R- or S-warfarin area under the concentration-time curves (AUCs) from 0 to 12 h (period of hepatic OATP inhibition by rifampin) or the maximum plasma concentration (C(max)) value. AUC(0-∞) was decreased on days rifampin was administered, for both R-warfarin (25% reduction; P < 0.001) and S-warfarin (15% reduction; P < 0.05). No differences were seen in the area under the international normalized ratio (INR)-time curve. Our study suggests that hepatic uptake via OATPs may not be clinically important in the pharmacokinetics of warfarin.
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Nassr N, Huennemeyer A, Herzog R, von Richter O, Hermann R, Koch M, Duffy K, Zech K, Lahu G. Effects of rifampicin on the pharmacokinetics of roflumilast and roflumilast N-oxide in healthy subjects. Br J Clin Pharmacol 2010; 68:580-7. [PMID: 19843061 DOI: 10.1111/j.1365-2125.2009.03478.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
AIMS To evaluate the effect of co-administration of rifampicin, an inducer of cytochrome P450 (CYP)3A4, on the pharmacokinetics of roflumilast and roflumilast N-oxide. Roflumilast is an oral, once-daily phosphodiesterase 4 (PDE4) inhibitor, being developed for the treatment of chronic obstructive pulmonary disease. Roflumilast is metabolized by CYP3A4 and CYP1A2, with further involvement of CYP2C19 and extrahepatic CYP1A1. In vivo, roflumilast N-oxide contributes >90% to the total PDE4 inhibitory activity. METHODS Sixteen healthy male subjects were enrolled in an open-label, three-period, fixed-sequence study. They received a single oral dose of roflumilast 500 microg on days 1 and 12 and repeated oral doses of rifampicin 600 mg once daily on days 5-15. Plasma concentrations of roflumilast and roflumilast N-oxide were measured for up to 96 h. Test/Reference ratios and 90% confidence intervals (CIs) of geometric means for AUC and C(max) of roflumilast and roflumilast N-oxide and for oral apparent clearance (CL/F) of roflumilast were estimated. RESULTS During the steady-state of rifampicin, the AUC(0-infinity) of roflumilast decreased by 80% (point estimate 0.21; 90% CI 0.16, 0.27); C(max) by 68% (0.32; CI 0.26, 0.39); for roflumilast N-oxide, the AUC(0-infinity) decreased by 56% (0.44; CI 0.36, 0.55); C(max) increased by 30% (1.30; 1.15, 1.48); total PDE4 inhibitory activity decreased by 58% (0.42; 0.38, 0.48). CONCLUSIONS Co-administration of rifampicin and roflumilast led to a reduction in total PDE4 inhibitory activity of roflumilast by about 58%. The use of potent cytochrome P450 inducers may reduce the therapeutic effect of roflumilast.
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Deng S, Chen XP, Cao D, Yin T, Dai ZY, Luo J, Tang L, Li YJ. Effects of a concomitant single oral dose of rifampicin on the pharmacokinetics of pravastatin in a two-phase, randomized, single-blind, placebo-controlled, crossover study in healthy Chinese male subjects. Clin Ther 2009; 31:1256-63. [PMID: 19695392 DOI: 10.1016/j.clinthera.2009.06.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2009] [Indexed: 11/17/2022]
Abstract
BACKGROUND Pravastatin is a potent cholesterol-lowering agent; ~34% of an oral dose of pravastatin is eliminated unchanged through biliary and urinary excretion. Rifampicin is an inducer of drug metabolism enzymes, and it affects the activities of transporters involved in pravastatin disposition. Drug-drug interaction between rifampicin and pravastatin is possible because of the effects of rifampicin on the activities of drug transporters. OBJECTIVE This study was designed to investigate the effects of a single oral dose of rifampicin on the pharmacokinetics of pravastatin. METHODS Healthy Chinese male volunteers were recruited for this 2-phase, single-blind, placebo-controlled, crossover study. The subjects were randomly divided into 2 groups to receive either rifam-picin or placebo concomitantly with pravastatin. All subjects received a 20-mg oral dose of pravastatin on days 1 and 9, separated by an 8-day washout period. Subjects in the rifampicin group received a single 600-mg oral dose of rifampicin on day 1 and placebo on day 9; those in the placebo group received placebo on day 1 and a single 600-mg oral dose of rifampicin on day 9. High-performance liquid chromatography-tandem mass spectrometry was used to determine plasma concentrations of pravastatin for up to 12 hours after administration. RESULTS Twelve volunteers participated in the study (6 per group). The mean (SD) age of the subjects was 20 (2) years (range, 18-25 years). The mean height of the subjects was 174 (4) cm (range, 168-180 cm), and the mean weight was 69.2 (3.7) kg (range, 65-77 kg). The mean pharmacokinetic parameters for pravastatin that changed significantly were as follows (rifampicin and placebo groups, respectively): C(max) (315.7 [227.2] and 115.8 [77.5] ng . mL(-1) [P = 0.009]); AUC(0-12) (604.8 [73.3] and 259.0 [133.4] ng . h . mL(-1) [P < 0.001]); AUC(0-infinity)) (623.3 [248.8] and 275.1 [58.5] ng . h . mL(-1) [P < 0.001]); and apparent oral clearance (CL/F) (0.52 [0.18] and 1.30 [0.58] L . h(-1) . kg(-1) [P < 0.001]). No significant changes in the T(max) or t((1/2)) of pravastatin were observed. All subjects tolerated pravastatin well during both phases of the study, with or without coadministration of rifampicin. None of the subjects withdrew from the study. CONCLUSION Coadministration of a single oral dose of rifampicin significantly increased the plasma concentration of pravastatin in this group of healthy Chinese male subjects.
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Affiliation(s)
- Sheng Deng
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, People's Republic of China
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Successful strategy to improve the specificity of electronic statin-drug interaction alerts. Eur J Clin Pharmacol 2009; 65:1149-57. [PMID: 19641913 DOI: 10.1007/s00228-009-0704-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2009] [Revised: 07/03/2009] [Accepted: 07/06/2009] [Indexed: 10/20/2022]
Abstract
PURPOSE A considerable weakness of current clinical decision support systems managing drug-drug interactions (DDI) is the high incidence of inappropriate alerts. Because DDI-induced, dose-dependent adverse events can be prevented by dosage adjustment, corresponding DDI alerts should only be issued if dosages exceed safe limits. We have designed a logical framework for a DDI alert-system that considers prescribed dosage and retrospectively evaluates the impact on the frequency of statin-drug interaction alerts. METHODS Upper statin dose limits were extracted from the drug label (SPC) (20 statin-drug combinations) or clinical trials specifying the extent of the pharmacokinetic interaction (43 statin-drug combinations). We retrospectively assessed electronic DDI alerts and compared the number of standard alerts to alerts that took dosage into account. RESULTS From among 2457 electronic prescriptions, we identified 73 high-risk statin-drug pairs. Of these, SPC dosage information classified 19 warnings as inappropriate. Data from pharmacokinetic trials took quantitative dosage information more often into consideration and classified 40 warnings as inappropriate. This is a significant reduction in the number of alerts by 55% compared to SPC-based information (26%; p < 0.001). CONCLUSION This retrospective study of pharmacokinetic statin interactions demonstrates that more than half of the DDI alerts that presented in a clinical decision support system were inappropriate if DDI-specific upper dose limits are not considered.
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Yamasaki D, Nakamura T, Okamura N, Kokudai M, Inui N, Takeuchi K, Watanabe H, Hirai M, Okumura K, Sakaeda T. Effects of acid and lactone forms of 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors on the induction of MDR1 expression and function in LS180 cells. Eur J Pharm Sci 2009; 37:126-32. [PMID: 19429419 DOI: 10.1016/j.ejps.2009.01.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Revised: 01/15/2009] [Accepted: 01/23/2009] [Indexed: 11/18/2022]
Abstract
In the present study, the ability of inhibitors of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGCR), also known as statins, to regulate the gene expression and function of multidrug resistance protein 1 (MDR1/P-glycoprotein) and differences between their acid and lactone forms were examined in human intestinal epithelial LS180 cells. Some statins had the potential to induce the expression of mRNAs for MDR1 and/or CYP3A in either form. The change in the mRNA expression of MDR1 was accompanied by a change in the CsA-dependent intracellular accumulation of rhodamine 123. Simvastatin lactone, but not the acid form, exhibited a strong inductive effect on the mRNA expression of MDR1 and CYP3A in a dose-dependent manner. Sulforaphane significantly suppressed the expression of MDR1 and CYP3A mRNAs induced by atorvastatin lactone, lovastatin acid, and lovastatin lactone, comparable to the control level, and moderately inhibited that by cerivastatin acid, fluvastatin acid and simvastatin lactone. In the case of pitavastatin acid, sulforaphane had no significant effect on the expression of MDR1 mRNA.These results suggested that some statins could induce MDR1 and CYP3A gene expression and these inductive effects differed between the lactone and active hydroxy acid forms, and that PXR-mediated regulation was rarely associated with the mRNA inducibility by pitavastatin acid, unlike that by other statins.
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Affiliation(s)
- Daisuke Yamasaki
- Department of Clinical Pharmacokinetics, Kobe University Graduate School of Medicine, Japan
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Oswald S, Grube M, Siegmund W, Kroemer HK. Transporter-mediated uptake into cellular compartments. Xenobiotica 2008; 37:1171-95. [DOI: 10.1080/00498250701570251] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Sakamoto K, Mikami H, Kimura J. Involvement of organic anion transporting polypeptides in the toxicity of hydrophilic pravastatin and lipophilic fluvastatin in rat skeletal myofibres. Br J Pharmacol 2008; 154:1482-90. [PMID: 18500364 PMCID: PMC2492093 DOI: 10.1038/bjp.2008.192] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2008] [Accepted: 04/14/2008] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND AND PURPOSE There is a discrepancy in the adverse effect of 3-hydroxy-3-methylglutaryl-CoA reductase inhibitors, statins between the clinical reports and the studies using skeletal muscle cell models. In the clinical reports, both hydrophilic and lipophilic statins induce myotoxicity, whereas in in vitro experiments using cell lines of myoblasts, lipophilic, but not hydrophilic, statins exert myotoxicity. We investigated the cause of this discrepancy. EXPERIMENTAL APPROACH Skeletal myofibres, fibroblasts and satellite cells were isolated from rat flexor digitorum brevis (FDB) muscles. Using these primary cultured cells as well as the L6 myoblast cell line, we compared the toxicity of hydrophilic pravastatin and lipophilic fluvastatin. The mRNA expression levels of possible drug transporters for statins were also examined in these cells using reverse transcriptase-PCR. KEY RESULTS In the skeletal myofibres, both pravastatin and fluvastatin induced vacuolation and cell death, whereas in the mononuclear cells only fluvastatin, but not pravastatin, was toxic. mRNA of the organic anion transporting polypeptides (Oatp) 1a4 and Oatp2b1 were expressed in the skeletal myofibres, but not in mononucleate cells. Estrone-3-sulphate, a substrate for Oatps, attenuated the effects of pravastatin and fluvastatin in skeletal myofibres; p-aminohippuric acid, a substrate for the organic anion transporters (Oats), but not Oatps, failed to do so. CONCLUSIONS AND IMPLICATIONS The statin transporters Oatp1a4 and Oatp2b1 are expressed in rat skeletal myofibres, but not in satellite cells, fibroblasts or in L6 myoblasts. This is probably why hydrophilic pravastatin affects skeletal muscle, but not skeletal myoblasts.
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Affiliation(s)
- K Sakamoto
- Department of Pharmacology, School of Medicine, Fukushima Medical University, Fukushima, Japan.
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Pharmacokinetics of rosuvastatin when coadministered with rifampicin in healthy males: A randomized, single-blind, placebo-controlled, crossover study. Clin Ther 2008; 30:1283-9. [DOI: 10.1016/s0149-2918(08)80052-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2008] [Indexed: 10/21/2022]
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Abstract
During recent years, it has become increasingly recognized that drug transporters play important roles in drug absorption and disposition. Organic anion transporting polypeptides (OATPs) are membrane transporters critically involved in the cellular uptake of drugs in tissues important for pharmacokinetics, such as the intestine, liver and kidneys. Recent advances in the pharmacogenomics of OATP1B1 have revealed that OATP transporters can play important roles in explaining interindividual variability in drug pharmacokinetics, and thus contribute to interindividual as well as interethnic variability in drug response. This article will provide an up-to-date review of human OATPs and their substrates, and a current compilation of their DNA sequence variations.
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Affiliation(s)
- Mikko Niemi
- University of Helsinki, Department of Clinical Pharmacology, Helsinki University Central Hospital, PO Box 340, Helsinki, FIN-00029 HUS, Finland.
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Abstract
Rifampin is a potent inducer of cytochrome P-450 oxidative enzymes as well as the P-glycoprotein transport system. Several examples of well-documented clinically significant interactions include warfarin, oral contraceptives, cyclosporine, itraconazole, digoxin, verapamil, nifedipine, simvastatin, midazolam, and human immunodeficiency virus-related protease inhibitors. Rifabutin reduces serum concentrations of antiretroviral agents, but less so than rifampin. Examples of clinically relevant interactions demonstrated by recent reports include everolimus, atorvastatin, rosiglitazone/pioglitazone, celecoxib, clarithromycin, caspofungin, and lorazepam. To avoid a decreased therapeutic response, therapeutic failure, or toxic reactions when rifampin is added to or discontinued from medication regimens, clinicians need to be cognizant of these interactions. Studies and cases of rifampin drug interactions continue to increase rapidly. This review is a timely reminder to clinicians to be vigilant.
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Neuvonen PJ, Backman JT, Niemi M. Pharmacokinetic Comparison of the Potential Over-the-Counter Statins Simvastatin, Lovastatin, Fluvastatin and Pravastatin. Clin Pharmacokinet 2008; 47:463-74. [DOI: 10.2165/00003088-200847070-00003] [Citation(s) in RCA: 148] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Sakamoto K, Honda T, Yokoya S, Waguri S, Kimura J. Rab-small GTPases are involved in fluvastatin and pravastatin-induced vacuolation in rat skeletal myofibers. FASEB J 2007; 21:4087-94. [PMID: 17634390 DOI: 10.1096/fj.07-8713com] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Three-hydroxy-3-methyl-glutaryl-CoA (HMG-CoA) reductase inhibitors, known as statins, induce skeletal muscle injury including myalgia, myositis, and rhabdomyolysis. The mechanism of this myotoxicity remains unknown. This study examined the effect of statins on single skeletal myofibers enzymatically isolated from the rat flexor digitorum brevis muscles. Fluvastatin and pravastatin induced the formation of numerous vacuoles in the myofibers after 72 h of treatment. This effect progressed in a time- and concentration-dependent manner and, consequently, cell death occurred after 120 h. Electron micrographs revealed craters along the sarcolemma and swelling of the sarcoplasmic reticula and mitochondria, in addition to intracellular vacuoles. When caffeine was added after 72 h of fluvastatin treatment, contractile shortening of statin-treated myofibers was significantly attenuated and blebs formed on the surface of the myofibers. The coapplication of geranylgeranylpyrophosphate (GGPP) with fluvastatin prevented the morphological changes, while that of farnesylpyrophosphate (FPP) was ineffective. Furthermore, perillyl alcohol, an inhibitor of Rab geranylgeranyl transferase and geranylgeranyl transferase-I (GGTase-I), mimicked the effect of statins, while a specific GGTase-I inhibitor (GGTI-298) or a farnesyl transferase inhibitor (FTI-277) failed to do so. These results suggest that the inactivation of Rab GTPase, which involved in intracellular membrane transport, is a crucial factor in statin-induced-morphological abnormality in skeletal muscle fibers.
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MESH Headings
- Animals
- Cell Line
- Cells, Cultured
- Enzyme Activation/drug effects
- Enzyme Activation/physiology
- Fatty Acids, Monounsaturated/adverse effects
- Female
- Fluvastatin
- Hydroxymethylglutaryl-CoA Reductase Inhibitors/adverse effects
- Indoles/adverse effects
- Muscle Fibers, Skeletal/drug effects
- Muscle Fibers, Skeletal/enzymology
- Muscle Fibers, Skeletal/pathology
- Muscle Fibers, Skeletal/ultrastructure
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/enzymology
- Muscle, Skeletal/pathology
- Muscle, Skeletal/ultrastructure
- Pravastatin/adverse effects
- Rats
- Rats, Sprague-Dawley
- Rats, Wistar
- Vacuoles/drug effects
- Vacuoles/enzymology
- Vacuoles/pathology
- Vacuoles/ultrastructure
- rab GTP-Binding Proteins/adverse effects
- rab GTP-Binding Proteins/physiology
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Affiliation(s)
- Kazuho Sakamoto
- Department of Pharmacology, School of Medicine, Fukushima Medical University, Hikarigaoka 1, Fukushima 960-1295, Japan.
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Becquemont L, Neuvonen M, Verstuyft C, Jaillon P, Letierce A, Neuvonen PJ, Funck-Brentano C. Amiodarone Interacts with Simvastatin but not with Pravastatin Disposition Kinetics. Clin Pharmacol Ther 2007; 81:679-84. [PMID: 17301736 DOI: 10.1038/sj.clpt.6100098] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The aim of this study was to determine the influence of amiodarone on the pharmacokinetics of simvastatin and pravastatin in humans. This was a prospective, crossover, randomized, open-label study performed in 12 healthy volunteers comparing the pharmacokinetics of a single oral dose of simvastatin (40 mg) or pravastatin (40 mg) taken alone and after 3 days of amiodarone (400 mg/day). Amiodarone increased simvastatin acid AUC (area under the plasma concentration-time curve)0-24 h, peak plasma concentration (Cmax), and t1/2 by 73% (P=0.02), 100% (P=0.02), and 48% (P=0.06), respectively, whereas it did not significantly alter pravastatin pharmacokinetics. Point estimates and 90% confidence intervals for simvastatin acid, simvastatin lactone, and pravastatin AUC0-24 h were 154% (109-216%), 155% (109-227%), and 86% (63-118%), respectively. If amiodarone and a statin have to be simultaneously prescribed, pravastatin should be preferred to simvastatin in order to avoid a drug interaction.
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Affiliation(s)
- L Becquemont
- Assistance Publique Hôpitaux de Paris, Hôpital Bicêtre, Service de Génétique Moléculaire et Pharmacogénétique, and Départment de Pharmacologie, Université Paris-Sud (XI), Le Kremlin Bicetre, France.
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Niemi M, Arnold KA, Backman JT, Pasanen MK, Gödtel-Armbrust U, Wojnowski L, Zanger UM, Neuvonen PJ, Eichelbaum M, Kivistö KT, Lang T. Association of genetic polymorphism in ABCC2 with hepatic multidrug resistance-associated protein 2 expression and pravastatin pharmacokinetics. Pharmacogenet Genomics 2006; 16:801-8. [PMID: 17047488 DOI: 10.1097/01.fpc.0000230422.50962.91] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Our aim was to investigate possible effects of sequence variations in ABCC2, encoding the multidrug resistance-associated protein 2 (MRP2), on the pharmacokinetics of the MRP2 substrate pravastatin. METHODS Deoxyribonucleic acid samples of 41 healthy volunteers, in whom SLCO1B1 single nucleotide polymorphisms (SNPs) and haplotypes had previously been found to be associated with increased plasma pravastatin concentrations, were investigated. Each study participant had ingested a single 40-mg dose of pravastatin followed by blood sampling for pharmacokinetic characterization in standardized conditions. The exons, exon-intron boundaries, promoter region and 3'-untranslated region of the ABCC2 gene of six individuals with the highest and six individuals with the lowest pravastatin area under the plasma concentration-time curve (AUC) values were sequenced. RESULTS Of the 26 sequence variations found, the synonymous c.1446C>G SNP was observed heterozygously in three (50%) of the six individuals with a low pravastatin AUC and in none (0%) of the six individuals with a high AUC (P=0.06 for allele frequency). The remaining 29 participants were then also genotyped for c.1446C>G, but none of them carried the SNP. In addition, the effect of c.1446C>G on MRP2 mRNA expression was investigated in 93 human liver samples. A multiple linear regression analysis in the 41 participants with pravastatin pharmacokinetic data indicated that the ABCC2 c.1446C>G SNP and the previously identified SLCO1B1 haplotype *17 were independent predictors of the AUC0-12 and Cmax of pravastatin (r=32 and 29%, respectively) (P<0.01). In the participants heterozygous for the ABCC2 c.1446C>G SNP (n=3), who were not carriers of the SLCO1B1*17 haplotype, the AUC0-12 and Cmax of pravastatin were 67 and 68% lower than in those carrying neither the SLCO1B1*17 haplotype nor the ABCC2 c.1446C>G SNP (n=35) (P<0.05). MRP2 mRNA expression was 95% higher in livers with the c.1446CG genotype (n=7) than in those with the c.1446CC genotype (n=86) (P<0.05). CONCLUSIONS These results support the idea that the ABCC2 c.1446C>G SNP is associated with reduced systemic exposure to pravastatin as a consequence of increased MRP2 expression. The underlying mechanism may involve either a modulating effect of the SNP on mRNA stability or linkage to other polymorphism(s) acting at the transcriptional level.
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Affiliation(s)
- Mikko Niemi
- Department of Clinical Pharmacology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland.
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Lilja JJ, Juntti-Patinen L, Neuvonen PJ. Effect of Rifampicin on the Pharmacokinetics of Atenolol. Basic Clin Pharmacol Toxicol 2006; 98:555-8. [PMID: 16700816 DOI: 10.1111/j.1742-7843.2006.pto_379.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Also poorly metabolized drugs, including certain beta-blocking agents, can be susceptible to drug interactions caused by transporter inhibitors and inducers. Thus, our aim was to investigate the effect of rifampicin on the pharmacokinetics of atenolol in healthy people. In a randomized cross-over study with two phases, nine healthy volunteers received a 5-day pretreatment with rifampicin (600 mg daily) or placebo. On day 6, a single 100 mg dose of atenolol was administered orally. The plasma concentrations of atenolol and its excretion into urine were measured up to 33 hr after dosing. Systolic and diastolic blood pressures and heart rate were recorded in a sitting position before the intake of atenolol and 2, 4, 6, and 10 hr later. During the rifampicin phase, the mean area under the plasma concentration-time curve (AUC(0-infinity)) of atenolol was decreased to 81% and renal clearance increased to 109% of the placebo phase values (P<0.05). Rifampicin pretreatment reduced, albeit not statistically significantly, also the peak plasma concentration (Cmax), AUC(0-33 hr), and amount of atenolol excreted to 85% (P=0.139), 81% (P=0.053), and 86% (P=0.12) of the respective placebo phase values. The average heart rate and diastolic blood pressure were slightly higher during the rifampicin phase compared with the placebo phase (P<0.05). To conclude, although the inducing effect of rifampicin may not have been at its maximum by day 6, rifampicin has only a minor effect on the pharmacokinetics of atenolol evidenced by a slight reduction in its bioavailability.
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Affiliation(s)
- Jari J Lilja
- Department of Clinical Pharmacology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland.
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Shitara Y, Sugiyama Y. Pharmacokinetic and pharmacodynamic alterations of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors: drug-drug interactions and interindividual differences in transporter and metabolic enzyme functions. Pharmacol Ther 2006; 112:71-105. [PMID: 16714062 DOI: 10.1016/j.pharmthera.2006.03.003] [Citation(s) in RCA: 412] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2005] [Revised: 09/19/2005] [Accepted: 03/13/2006] [Indexed: 11/19/2022]
Abstract
3-Hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors (statins) are widely used for the treatment of hypercholesterolemia. Their efficacy in preventing cardiovascular events has been shown by a large number of clinical trials. However, myotoxic side effects, sometimes severe, including myopathy or rhabdomyolysis, are associated with the use of statins. In some cases, such toxicity is associated with pharmacokinetic alterations. In this review, the pharmacokinetic aspects and physicochemical properties of statins are reviewed in order to understand the mechanism governing their pharmacokinetic alterations. Among the statins, simvastatin, lovastatin and atorvastatin are metabolized by cytochrome P450 3A4 (CYP3A4) while fluvastatin is metabolized by CYP2C9. Cerivastatin is subjected to 2 metabolic pathways mediated by CYP2C8 and 3A4. Pravastatin, rosuvastatin and pitavastatin undergo little metabolism. Their plasma clearances are governed by the transporters involved in the hepatic uptake and biliary excretion. Also for other statins, which are orally administered as open acid forms (i.e. fluvastatin, cerivastatin and atorvastatin), hepatic uptake transporter(s) play important roles in their clearances. Based on such information, pharmacokinetic alterations of statins can be predicted following coadministration of other drugs or in patients with lowered activities in drug metabolism and/or transport. We also present a quantitative analysis of the effect of some factors on the pharmacokinetics of statins based on a physiologically based pharmacokinetic model. To avoid a pharmacokinetic alteration, we need to have information about the metabolizing enzyme(s) and transporter(s) involved in the pharmacokinetics of statins and, along with such information, model-based prediction is also useful.
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Affiliation(s)
- Yoshihisa Shitara
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
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