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Zhang Q, Melchert PW, Markowitz JS. In vitro evaluation of the impact of Covid-19 therapeutic agents on the hydrolysis of the antiviral prodrug remdesivir. Chem Biol Interact 2022; 365:110097. [PMID: 35964681 PMCID: PMC9367181 DOI: 10.1016/j.cbi.2022.110097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/01/2022] [Accepted: 08/06/2022] [Indexed: 11/27/2022]
Abstract
Remdesivir (RDV, Veklury®) is an FDA-approved prodrug for the treatment of hospitalized patients with COVID-19. Recent in vitro studies have indicated that human carboxylesterase 1 (CES1) is the major metabolic enzyme catalyzing RDV activation. COVID-19 treatment for hospitalized patients typically also involves a number of antibiotics and anti-inflammatory drugs. Further, individuals who are carriers of a CES1 variant (polymorphism in exon 4 codon 143 [G143E]) may experience impairment in their ability to metabolize therapeutic agents which are CES1 substrates. The present study assessed the potential influence of nine therapeutic agents (hydroxychloroquine, ivermectin, erythromycin, clarithromycin, roxithromycin, trimethoprim, ciprofloxacin, vancomycin, and dexamethasone) commonly used in treating COVID-19 and 5 known CES1 inhibitors on the metabolism of RDV. Additionally, we further analyzed the mechanism of inhibition of cannabidiol (CBD), as well as the impact of the G143E polymorphism on RDV metabolism. An in vitro S9 fraction incubation method and in vitro to in vivo pharmacokinetic scaling were utilized. None of the nine therapeutic agents evaluated produced significant inhibition of RDV hydrolysis; CBD was found to inhibit RDV hydrolysis by a mixed type of competitive and noncompetitive partial inhibition mechanism. In vitro to in vivo modeling suggested a possible reduction of RDV clearance and increase of AUC when coadministration with CBD. The same scaling method also suggested a potentially lower clearance and higher AUC in the presence of the G143E variant. In conclusion, a potential CES1-mediated DDI between RDV and the nine assessed medications appears unlikely. However, a potential CES1-mediated DDI between RDV and CBD may be possible with sufficient exposure to the cannabinoid. Patients carrying the CES1 G143E variant may exhibit a slower biotransformation and clearance of RDV. Further clinical studies would be required to evaluate and characterize the clinical significance of a CBD-RDV interaction.
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Affiliation(s)
- Qingchen Zhang
- Department of Pharmacotherapy and Translational Research, Gainesville, FL, USA
| | - Philip W Melchert
- Department of Pharmacotherapy and Translational Research, Gainesville, FL, USA
| | - John S Markowitz
- Department of Pharmacotherapy and Translational Research, Gainesville, FL, USA; Center for Pharmacogenomics and Precision Medicine, University of Florida, Gainesville, FL, USA.
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2
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Xiao J, Shi J, Thompson BR, Smith DE, Zhang T, Zhu HJ. Physiologically-Based Pharmacokinetic Modeling to Predict Methylphenidate Exposure Affected by Interplay Among Carboxylesterase 1 Pharmacogenetics, Drug-Drug Interactions, and Sex. J Pharm Sci 2022; 111:2606-2613. [PMID: 35526575 PMCID: PMC9391289 DOI: 10.1016/j.xphs.2022.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/28/2022] [Accepted: 04/28/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND AND OBJECTIVE The pharmacokinetics (PK) of methylphenidate (MPH) differ significantly among individuals. Carboxylesterase 1 (CES1) is the primary enzyme metabolizing MPH, and its function is affected by genetic variants, drug-drug interaction (DDI), and sex. The object of this study is to evaluate CES1 pharmacogenetics as related to MPH metabolism using human liver samples and develop a physiologically-based pharmacokinetic (PBPK) modeling approach to investigate the influence of CES1 genotypes and other factors on MPH PK. METHODS The effect of the CES1 variant G143E (rs71647871) on MPH metabolism was studied utilizing 102 individual human liver S9 (HLS9) fraction samples. PBPK models were developed using the population-based PBPK software PK-Sim® by incorporating the HLS9 incubation data. The established models were applied to simulate MPH PK profiles under various clinical scenarios, including different genotypes, drug-alcohol interactions, and the difference between males and females. RESULTS The HLS9 incubation study showed that subjects heterozygous for the CES1 variant G143E metabolized MPH at a rate of approximately 50% of that in non-carriers. The developed PBPK models successfully predicted the exposure alteration of MPH from the G143E genetic variant, ethanol-MPH DDI, and sex. Importantly, the study suggests that male G143E carriers who are alcohol consumers are at a higher risk of MPH overexposure. CONCLUSION PBPK modeling provides a means for better understanding the mechanisms underlying interindividual variability in MPH PK and PD and could be utilized to develop a safer and more effective MPH pharmacotherapy regimen.
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Affiliation(s)
- Jingcheng Xiao
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, 48109, United States
| | - Jian Shi
- Alliance Pharma, Inc, Malvern, PA, 19355, United States
| | - Brian R Thompson
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, 48109, United States
| | - David E Smith
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, 48109, United States
| | - Tao Zhang
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, SUNY Binghamton University, Binghamton, NY, 13902, United States
| | - Hao-Jie Zhu
- Department of Clinical Pharmacy, University of Michigan, Ann Arbor, MI, 48109, United States.
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3
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Ochi M, Kinoshita K, Yamaguchi JI, Endo H. Bottom-up physiologically based pharmacokinetic modeling for predicting the human pharmacokinetic profiles of the ester prodrug MGS0274 and its active metabolite MGS0008, a metabotropic glutamate 2/3 receptor agonist. Xenobiotica 2022; 52:119-128. [PMID: 35296225 DOI: 10.1080/00498254.2022.2053894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
1. For ester prodrugs that are used to improve the gastrointestinal absorption of highly hydrophilic, pharmacologically active substances, it is challenging to predict the human pharmacokinetics (PK) of the prodrugs and their parent compounds using only preclinical data.2. This research was aimed at constructing a PBPK model for predicting the human PK of the ester prodrug MGS0274 and its parent compound MGS0008 after a single oral administration of MGS0274 besylate.3. First, we identified carboxylesterase 1 (CES1) as the major enzyme involved in the hydrolysis of MGS0274. Second, we constructed a new compartment model to estimate the passive diffusion clearance (CLpd) of MGS0008, a critical parameter for predicting the PK of highly hydrophilic compounds, based on in vivo monkey PK data. Finally, we constructed a permeability-limited liver PBPK model incorporating the CLpd assumed to be the same in humans.4. We confirmed that our method reliably predicted the human PK and that the estimated CLpd was comparable to that calculated retrospectively using the PBPK model, suggesting that the methodology for estimating the CLpd was valid.5. Our proposed methodology is expected to be helpful for human PK prediction of ester prodrugs hydrolyzed by CES1 and their hydrophilic parent compounds even during the preclinical phase.
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Affiliation(s)
- Motoki Ochi
- Drug Metabolism and Pharmacokinetics, Drug Safety and Pharmacokinetics Laboratories, Research Headquarters, Taisho Pharmaceutical Co., Ltd., Saitama, Japan
| | - Kohnosuke Kinoshita
- Drug Metabolism and Pharmacokinetics, Drug Safety and Pharmacokinetics Laboratories, Research Headquarters, Taisho Pharmaceutical Co., Ltd., Saitama, Japan
| | - Jun-Ichi Yamaguchi
- Drug Metabolism and Pharmacokinetics, Drug Safety and Pharmacokinetics Laboratories, Research Headquarters, Taisho Pharmaceutical Co., Ltd., Saitama, Japan
| | - Hiromi Endo
- Drug Metabolism and Pharmacokinetics, Drug Safety and Pharmacokinetics Laboratories, Research Headquarters, Taisho Pharmaceutical Co., Ltd., Saitama, Japan
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Rudolph S, Dahlhaus H, Hanekamp W, Albers C, Barth M, Michels G, Friedrich D, Lehr M. Aryl N-[ω-(6-Fluoroindol-1-yl)alkyl]carbamates as Inhibitors of Fatty Acid Amide Hydrolase, Monoacylglycerol Lipase, and Butyrylcholinesterase: Structure-Activity Relationships and Hydrolytic Stability. ACS OMEGA 2021; 6:13466-13483. [PMID: 34056494 PMCID: PMC8158844 DOI: 10.1021/acsomega.1c01699] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 04/29/2021] [Indexed: 05/02/2023]
Abstract
A series of aryl N-[ω-(6-fluoroindol-1-yl)alkyl]carbamates with alkyl spacers of varying lengths between the indole and the carbamate group and with differently substituted aryl moieties at the carbamate oxygen were synthesized and tested for inhibition of the pharmacologically interesting serine hydrolases fatty acid amide hydrolase (FAAH), monoacylglycerol lipase (MAGL), butyrylcholinesterase (BuChE), and acetylcholinesterase (AChE). Furthermore, the chemical stability in an aqueous solution and the metabolic stability toward esterases in porcine liver homogenate and porcine blood plasma were determined. While most of the synthesized derivatives were potent inhibitors of FAAH, a considerable inhibition of MAGL and BuChE was elicited only by compounds with a high carbamate reactivity, as evidenced by a significant hydrolysis of these compounds in an aqueous solution. However, the high inhibitory potency of some compounds toward MAGL and BuChE, especially that of the ortho-carboxyphenyl derivative 37, could not be explained by chemical reactivity alone. Several of the carbamates studied possessed varying degrees of stability toward esterases from liver and blood plasma. In some cases, marked inactivation by the pseudo-esterase activity of plasma albumin was observed. Mass spectrometric studies showed that such carbamates formed covalent bonds with albumin at several sites.
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Affiliation(s)
- Stefan Rudolph
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstrasse 48, 48149 Münster, Germany
| | - Helmut Dahlhaus
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstrasse 48, 48149 Münster, Germany
| | - Walburga Hanekamp
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstrasse 48, 48149 Münster, Germany
| | - Christian Albers
- Bruker
Daltonik GmbH, Fahrenheitstrasse
4, 28359 Bremen, Germany
| | - Maximilian Barth
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstrasse 48, 48149 Münster, Germany
| | - Giulia Michels
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstrasse 48, 48149 Münster, Germany
| | - Denise Friedrich
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstrasse 48, 48149 Münster, Germany
| | - Matthias Lehr
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstrasse 48, 48149 Münster, Germany
- . Tel: +49251 83 33331. Fax: +49251 83 32144
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Miao L, Mousa YM, Zhao L, Raines K, Seo P, Wu F. Using a Physiologically Based Pharmacokinetic Absorption Model to Establish Dissolution Bioequivalence Safe Space for Oseltamivir in Adult and Pediatric Populations. AAPS JOURNAL 2020; 22:107. [DOI: 10.1208/s12248-020-00493-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 07/28/2020] [Indexed: 11/30/2022]
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Zhang JD, Sach-Peltason L, Kramer C, Wang K, Ebeling M. Multiscale modelling of drug mechanism and safety. Drug Discov Today 2020; 25:519-534. [DOI: 10.1016/j.drudis.2019.12.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 12/06/2019] [Accepted: 12/23/2019] [Indexed: 12/19/2022]
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Her L, Zhu HJ. Carboxylesterase 1 and Precision Pharmacotherapy: Pharmacogenetics and Nongenetic Regulators. Drug Metab Dispos 2019; 48:230-244. [PMID: 31871135 DOI: 10.1124/dmd.119.089680] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 12/16/2019] [Indexed: 12/20/2022] Open
Abstract
Carboxylesterase (CES) 1 is the most abundant drug-metabolizing enzyme in human livers, comprising approximately 1% of the entire liver proteome. CES1 is responsible for 80%-95% of total hydrolytic activity in the liver and plays a crucial role in the metabolism of a wide range of drugs (especially ester-prodrugs), pesticides, environmental pollutants, and endogenous compounds. Expression and activity of CES1 vary markedly among individuals, which is a major contributing factor to interindividual variability in the pharmacokinetics (PK) and pharmacodynamics (PD) of drugs metabolized by CES1. Both genetic and nongenetic factors contribute to CES1 variability. Here, we discuss genetic polymorphisms, including single-nucleotide polymorphisms (SNPs), and copy number variants and nongenetic contributors, such as developmental status, genders, and drug-drug interactions, that could influence CES1 functionality and the PK and PD of CES1 substrates. Currently, the loss-of-function SNP G143E (rs71647871) is the only clinically significant CES1 variant identified to date, and alcohol is the only potent CES1 inhibitor that could alter the therapeutic outcomes of CES1 substrate medications. However, G143E and alcohol can only explain a small portion of the interindividual variability in the CES1 function. A better understanding of the regulation of CES1 expression and activity and identification of biomarkers for CES1 function in vivo could lead to the development of a precision pharmacotherapy strategy to improve the efficacy and safety of many CES1 substrate drugs. SIGNIFICANCE STATEMENT: The clinical relevance of CES1 has been well demonstrated in various clinical trials. Genetic and nongenetic regulators can affect CES1 expression and activity, resulting in the alteration of the metabolism and clinical outcome of CES1 substrate drugs, such as methylphenidate and clopidogrel. Predicting the hepatic CES1 function can provide clinical guidance to optimize pharmacotherapy of numerous medications metabolized by CES1.
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Affiliation(s)
- Lucy Her
- Department of Clinical Pharmacy, University of Michigan, Ann Arbor, Michigan
| | - Hao-Jie Zhu
- Department of Clinical Pharmacy, University of Michigan, Ann Arbor, Michigan
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Alsmadi MM, Alfarah MQ, Albderat J, Alsalaita G, AlMardini R, Hamadi S, Al‐Ghazawi A, Abu‐Duhair O, Idkaidek N. The development of a population physiologically based pharmacokinetic model for mycophenolic mofetil and mycophenolic acid in humans using data from plasma, saliva, and kidney tissue. Biopharm Drug Dispos 2019; 40:325-340. [DOI: 10.1002/bdd.2206] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 09/22/2019] [Accepted: 10/09/2019] [Indexed: 02/06/2023]
Affiliation(s)
| | | | - Jawaher Albderat
- Queen Rania Abdullah Children Hospital, Royal Medical Services Amman Jordan
| | - Ghazi Alsalaita
- Queen Rania Abdullah Children Hospital, Royal Medical Services Amman Jordan
| | - Reham AlMardini
- Queen Rania Abdullah Children Hospital, Royal Medical Services Amman Jordan
| | - Salim Hamadi
- Deparment of Pharmaceutical Technology, Faculty of PharmacyUniversity of Petra Amman Jordan
| | | | - Omar Abu‐Duhair
- Deparment of Pharmaceutical Technology, Faculty of PharmacyUniversity of Petra Amman Jordan
| | - Nasir Idkaidek
- Deparment of Pharmaceutical Technology, Faculty of PharmacyUniversity of Petra Amman Jordan
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9
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Rautio J, Meanwell NA, Di L, Hageman MJ. The expanding role of prodrugs in contemporary drug design and development. Nat Rev Drug Discov 2018; 17:559-587. [DOI: 10.1038/nrd.2018.46] [Citation(s) in RCA: 325] [Impact Index Per Article: 54.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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10
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Marsousi N, Desmeules JA, Rudaz S, Daali Y. Usefulness of PBPK Modeling in Incorporation of Clinical Conditions in Personalized Medicine. J Pharm Sci 2017; 106:2380-2391. [DOI: 10.1016/j.xphs.2017.04.035] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 04/06/2017] [Accepted: 04/07/2017] [Indexed: 12/14/2022]
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11
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Ethanol Interactions With Dexmethylphenidate and dl-Methylphenidate Spheroidal Oral Drug Absorption Systems in Healthy Volunteers. J Clin Psychopharmacol 2017; 37:419-428. [PMID: 28590363 PMCID: PMC5484776 DOI: 10.1097/jcp.0000000000000721] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND/PURPOSE Ethanol coadministered with immediate-release dl-methylphenidate (dl-MPH) or dexmethylphenidate (d-MPH) significantly increases the geomean maximum plasma concentration (Cmax) of d-MPH 22% and 15%, respectively, and elevates overall drug exposure and psychostimulant effects. We asked the question: Are these ethanol-MPH interactions based more fundamentally on (1) inhibition of postabsorption d-MPH metabolism or (2) acceleration of MPH formulation gastric dissolution by ethanol in the stomach? This was investigated using the pulsatile, distinctly biphasic, spheroidal oral drug absorption systems of dl-MPH and d-MPH. METHODS In a randomized, 4-way crossover study, 14 healthy subjects received pulsatile dl-MPH (40 mg) or d-MPH (20 mg), with or without ethanol (0.6 g/kg), dosed 4 hours later. These 4 hours allowed the delayed-release second MPH pulse to reach a more distal region of the gut to preclude gastric biopharmaceutical influences. Plasma was analyzed using a highly sensitive chiral method. Subjective/physiological effects were recorded. FINDINGS/RESULTS Ethanol increased the second pulse of d-MPH Cmax for dl-MPH by 35% (P < 0.01) and the partial area under the plasma concentration curve from 4 to 8 hours by 25% (P < 0.05). The respective values for enantiopure d-MPH were 27% (P = 0.001) and 20% (P < 0.01). The carboxylesterase 1-mediated transesterification metabolite ethylphenidate served as a biomarker for coexposure. Ethanol significantly potentiated stimulant responses to either formulation. IMPLICATIONS/CONCLUSIONS These findings support drug dispositional interactions between ethanol and MPH as dominant over potential biopharmaceutical considerations. Understanding the pharmacology underlying the frequent coabuse of MPH-ethanol provides rational guidance in the selection of first-line pharmacotherapy for comorbid attention-deficit/hyperactivity disorder-alcohol use disorder.
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12
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Boberg M, Vrana M, Mehrotra A, Pearce RE, Gaedigk A, Bhatt DK, Leeder JS, Prasad B. Age-Dependent Absolute Abundance of Hepatic Carboxylesterases (CES1 and CES2) by LC-MS/MS Proteomics: Application to PBPK Modeling of Oseltamivir In Vivo Pharmacokinetics in Infants. Drug Metab Dispos 2017; 45:216-223. [PMID: 27895113 PMCID: PMC5267516 DOI: 10.1124/dmd.116.072652] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 11/22/2016] [Indexed: 12/17/2022] Open
Abstract
The age-dependent absolute protein abundance of carboxylesterase (CES) 1 and CES2 in human liver was investigated and applied to predict infant pharmacokinetics (PK) of oseltamivir. The CES absolute protein abundance was determined by liquid chromatography-tandem mass spectrometry proteomics in human liver microsomal and cytosolic fractions prepared from tissue samples obtained from 136 pediatric donors and 35 adult donors. Two surrogate peptides per protein were selected for the quantification of CES1 and CES2 protein abundance. Purified CES1 and CES2 protein standards were used as calibrators, and the heavy labeled peptides were used as the internal standards. In hepatic microsomes, CES1 and CES2 abundance (in picomoles per milligram total protein) increased approximately 5-fold (315.2 vs. 1664.4) and approximately 3-fold (59.8 vs. 174.1) from neonates to adults, respectively. CES1 protein abundance in liver cytosol also showed age-dependent maturation. Oseltamivir carboxylase activity was correlated with protein abundance in pediatric and adult liver microsomes. The protein abundance data were then used to model in vivo PK of oseltamivir in infants using pediatric physiologically based PK modeling and incorporating the protein abundance-based ontogeny function into the existing pediatric Simcyp model. The predicted pediatric area under the curve, maximal plasma concentration, and time for maximal plasma concentration values were below 2.1-fold of the clinically observed values, respectively.
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Affiliation(s)
- Mikael Boberg
- Department of Pharmaceutics, University of Washington, Seattle, Washington (M.B., M.V., A.M., D.K.B., B.P.); Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden (M.B.); Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.); and School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.)
| | - Marc Vrana
- Department of Pharmaceutics, University of Washington, Seattle, Washington (M.B., M.V., A.M., D.K.B., B.P.); Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden (M.B.); Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.); and School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.)
| | - Aanchal Mehrotra
- Department of Pharmaceutics, University of Washington, Seattle, Washington (M.B., M.V., A.M., D.K.B., B.P.); Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden (M.B.); Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.); and School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.)
| | - Robin E Pearce
- Department of Pharmaceutics, University of Washington, Seattle, Washington (M.B., M.V., A.M., D.K.B., B.P.); Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden (M.B.); Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.); and School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.)
| | - Andrea Gaedigk
- Department of Pharmaceutics, University of Washington, Seattle, Washington (M.B., M.V., A.M., D.K.B., B.P.); Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden (M.B.); Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.); and School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.)
| | - Deepak Kumar Bhatt
- Department of Pharmaceutics, University of Washington, Seattle, Washington (M.B., M.V., A.M., D.K.B., B.P.); Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden (M.B.); Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.); and School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.)
| | - J Steven Leeder
- Department of Pharmaceutics, University of Washington, Seattle, Washington (M.B., M.V., A.M., D.K.B., B.P.); Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden (M.B.); Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.); and School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.)
| | - Bhagwat Prasad
- Department of Pharmaceutics, University of Washington, Seattle, Washington (M.B., M.V., A.M., D.K.B., B.P.); Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden (M.B.); Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.); and School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri (R.E.P., A.G., J.S.L.)
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Argikar UA, Potter PM, Hutzler JM, Marathe PH. Challenges and Opportunities with Non-CYP Enzymes Aldehyde Oxidase, Carboxylesterase, and UDP-Glucuronosyltransferase: Focus on Reaction Phenotyping and Prediction of Human Clearance. AAPS JOURNAL 2016; 18:1391-1405. [PMID: 27495117 DOI: 10.1208/s12248-016-9962-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 07/13/2016] [Indexed: 01/28/2023]
Abstract
Over the years, significant progress has been made in reducing metabolic instability due to cytochrome P450-mediated oxidation. High-throughput metabolic stability screening has enabled the advancement of compounds with little to no oxidative metabolism. Furthermore, high lipophilicity and low aqueous solubility of presently pursued chemotypes reduces the probability of renal excretion. As such, these low microsomal turnover compounds are often substrates for non-CYP-mediated metabolism. UGTs, esterases, and aldehyde oxidase are major enzymes involved in catalyzing such metabolism. Hepatocytes provide an excellent tool to identify such pathways including elucidation of major metabolites. To predict human PK parameters for P450-mediated metabolism, in vitro-in vivo extrapolation using hepatic microsomes, hepatocytes, and intestinal microsomes has been actively investigated. However, such methods have not been sufficiently evaluated for non-P450 enzymes. In addition to the involvement of the liver, extrahepatic enzymes (intestine, kidney, lung) are also likely to contribute to these pathways. While there has been considerable progress in predicting metabolic pathways and clearance primarily mediated by the liver, progress in characterizing extrahepatic metabolism and prediction of clearance has been slow. Well-characterized in vitro systems or in vivo animal models to assess drug-drug interaction potential and intersubject variability due to polymorphism are not available. Here we focus on the utility of appropriate in vitro studies to characterize non-CYP-mediated metabolism and to understand the enzymes involved followed by pharmacokinetic studies in the appropriately characterized surrogate species. The review will highlight progress made in establishing in vitro-in vivo correlation, predicting human clearance and avoiding costly clinical failures when non-CYP-mediated metabolic pathways are predominant.
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Affiliation(s)
- Upendra A Argikar
- Analytical Sciences and Imaging, Novartis Institutes for Biomedical Research, Inc., Cambridge, Massachusetts, USA
| | - Philip M Potter
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - J Matthew Hutzler
- Q2 Solutions, Bioanalytical and ADME Labs, Indianapolis, Indiana, USA
| | - Punit H Marathe
- Department of Metabolism and Pharmacokinetics, Bristol-Myers Squibb, Princeton, New Jersey, USA.
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Biopharmaceutical Characterization of Nebulized Antimicrobial Agents in Rats: 5. Oseltamivir Carboxylate. Antimicrob Agents Chemother 2016; 60:5085-7. [PMID: 27297482 DOI: 10.1128/aac.00909-16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 06/03/2016] [Indexed: 12/31/2022] Open
Abstract
The aim of this study was to determine the biopharmaceutical characteristics of oseltamivir carboxylate (OC) after pulmonary delivery. After OC bolus and intratracheal nebulization (NEB) in rats, blood was collected and bronchoalveolar lavages (BALs) were performed. Epithelial lining fluid (ELF) concentrations were estimated from BAL fluid. The area under the curve (AUC) ratio for ELF to plasma was 842 times higher after NEB than after intravenous (i.v.) administration, indicating that OC nebulization offers a biopharmaceutical advantage over i.v. administration.
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Wang DD, Jin Q, Hou J, Feng L, Li N, Li SY, Zhou Q, Zou LW, Ge GB, Wang JG, Yang L. Highly sensitive and selective detection of human carboxylesterase 1 activity by liquid chromatography with fluorescence detection. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1008:212-218. [DOI: 10.1016/j.jchromb.2015.11.046] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 11/20/2015] [Accepted: 11/25/2015] [Indexed: 11/29/2022]
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16
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Wang DD, Jin Q, Zou LW, Hou J, Lv X, Lei W, Cheng HL, Ge GB, Yang L. A bioluminescent sensor for highly selective and sensitive detection of human carboxylesterase 1 in complex biological samples. Chem Commun (Camb) 2016; 52:3183-6. [DOI: 10.1039/c5cc09874b] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A highly selective and sensitive bioluminescent sensor (DME) for real-time monitoring of human carboxylesterase 1 (hCE1) activities in complex biological samples and bio-imaging of endogenous hCE1 in living cells.
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Affiliation(s)
- Dan-Dan Wang
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Qiang Jin
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Li-Wei Zou
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Jie Hou
- Dalian Medical University
- Dalian
- China
| | - Xia Lv
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Wei Lei
- Dalian Medical University
- Dalian
- China
| | - Hai-Ling Cheng
- Cancer Institute
- The Second Hospital of Dalian Medical University
- Dalian
- China
| | - Guang-Bo Ge
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Ling Yang
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
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Differential Mechanisms of Tenofovir and Tenofovir Disoproxil Fumarate Cellular Transport and Implications for Topical Preexposure Prophylaxis. Antimicrob Agents Chemother 2015; 60:1667-75. [PMID: 26711762 DOI: 10.1128/aac.02793-15] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 12/16/2015] [Indexed: 12/14/2022] Open
Abstract
Intravaginal rings releasing tenofovir (TFV) or its prodrug, tenofovir disoproxil fumarate (TDF), are being evaluated for HIV and herpes simplex virus (HSV) prevention. The current studies were designed to determine the mechanisms of drug accumulation in human vaginal and immune cells. The exposure of vaginal epithelial or T cells to equimolar concentrations of radiolabeled TDF resulted in over 10-fold higher intracellular drug levels than exposure to TFV. Permeability studies demonstrated that TDF, but not TFV, entered cells by passive diffusion. TDF uptake was energy independent but its accumulation followed nonlinear kinetics, and excess unlabeled TDF inhibited radiolabeled TDF uptake in competition studies. The carboxylesterase inhibitor bis-nitrophenyl phosphate reduced TDF uptake, suggesting saturability of intracellular carboxylesterases. In contrast, although TFV uptake was energy dependent, no competition between unlabeled and radiolabeled TFV was observed, and the previously identified transporters, organic anion transporters (OATs) 1 and 3, were not expressed in human vaginal or T cells. The intracellular accumulation of TFV was reduced by the addition of endocytosis inhibitors, and this resulted in the loss of TFV antiviral activity. Kinetics of drug transport and metabolism were monitored by quantifying the parent drugs and their metabolites by high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS). Results were consistent with the identified mechanisms of transport, and the exposure of vaginal epithelial cells to equimolar concentrations of TDF compared to TFV resulted in ∼40-fold higher levels of the active metabolite, tenofovir diphosphate. Together, these findings indicate that substantially lower concentrations of TDF than TFV are needed to protect cells from HIV and HSV-2.
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Sager JE, Yu J, Ragueneau-Majlessi I, Isoherranen N. Physiologically Based Pharmacokinetic (PBPK) Modeling and Simulation Approaches: A Systematic Review of Published Models, Applications, and Model Verification. Drug Metab Dispos 2015; 43:1823-37. [PMID: 26296709 DOI: 10.1124/dmd.115.065920] [Citation(s) in RCA: 298] [Impact Index Per Article: 33.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 08/20/2015] [Indexed: 12/16/2022] Open
Abstract
Modeling and simulation of drug disposition has emerged as an important tool in drug development, clinical study design and regulatory review, and the number of physiologically based pharmacokinetic (PBPK) modeling related publications and regulatory submissions have risen dramatically in recent years. However, the extent of use of PBPK modeling by researchers, and the public availability of models has not been systematically evaluated. This review evaluates PBPK-related publications to 1) identify the common applications of PBPK modeling; 2) determine ways in which models are developed; 3) establish how model quality is assessed; and 4) provide a list of publically available PBPK models for sensitive P450 and transporter substrates as well as selective inhibitors and inducers. PubMed searches were conducted using the terms "PBPK" and "physiologically based pharmacokinetic model" to collect published models. Only papers on PBPK modeling of pharmaceutical agents in humans published in English between 2008 and May 2015 were reviewed. A total of 366 PBPK-related articles met the search criteria, with the number of articles published per year rising steadily. Published models were most commonly used for drug-drug interaction predictions (28%), followed by interindividual variability and general clinical pharmacokinetic predictions (23%), formulation or absorption modeling (12%), and predicting age-related changes in pharmacokinetics and disposition (10%). In total, 106 models of sensitive substrates, inhibitors, and inducers were identified. An in-depth analysis of the model development and verification revealed a lack of consistency in model development and quality assessment practices, demonstrating a need for development of best-practice guidelines.
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Affiliation(s)
- Jennifer E Sager
- Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, Washington
| | - Jingjing Yu
- Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, Washington
| | | | - Nina Isoherranen
- Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, Washington
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Khalil F, Lüpken R, Läer S, Bernstein D. Innovative tools in the individualized medical therapy for children with heart muscle disease. PROGRESS IN PEDIATRIC CARDIOLOGY 2015. [DOI: 10.1016/j.ppedcard.2015.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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