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Hashim M, Ahmad L, Khan A, Faheem M. Development and validation of a reversed-phase HPLC-UV method for simultaneous determination of levosulpiride and omeprazole in human plasma: Applicability of the method for evaluation of pharmacokinetic drug-drug interactions. PLoS One 2024; 19:e0309453. [PMID: 39208137 PMCID: PMC11361584 DOI: 10.1371/journal.pone.0309453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 08/12/2024] [Indexed: 09/04/2024] Open
Abstract
Levosulpiride and omeprazole are co-prescribed for gastrointestinal disorders associated with depression and anxiety. Objective of the study was to develop a sensitive, robust and simple method for simultaneous analysis of levosulpiride and omeprazole in human plasma and applicability of the method in determination of pharmacokinetics drug-drug interaction. In the presented study, a reversed-phase HPLC-UV method was developed for the simultaneous determination of levosulpiride and omeprazole using pantoprazole as the internal standard. Experimental conditions were optimized and the developed method was validated as per standard guidelines (USP and ICH). Furthermore, the developed method was applied for evaluation of pharmacokinetics drug-drug interaction between levosulpiride (50 mg) and omeprazole (40 mg) in healthy human volunteers. Sharpsil C8 column (4.6 × 250 mm, 5 μm), Ultisil C8 column (4.6 mm × 150 mm, 5 μm) and Agilent C18 column (4.6 × 250 mm, 5 μm) were evaluated as stationary phase. The best resolution was achieved with Agilent C18 (4.6 x 250 mm, 5 μm) column and was selected for further study. The mobile phase consisted of a mixture of acetonitrile and phosphate buffer (pH 7.2) in 60:40 by volume, and was pumped at a flow rate of 1 mL/min. Detector wavelength was set at 280 nm. Levosulpiride and omeprazole were extracted from human plasma with ethyl acetate and dichloromethane (4:1, v/v). The calibration curves for both levosulpiride (5-150 ng/mL) and omeprazole (10-1500 ng/mL) were linear. The lower limit of quantification and limit of detection for levosulpiride were 5 and 2 ng/mL, while for omeprazole these were 10 and 3 ng/mL, respectively. Pharmacokinetics analysis showed that co-administration of omeprazole increased the AUC and Cmax of levosulpiride, while the clearance was reduced. Both the changes were insignificant. Similarly, no significant change in the pharmacokinetic parameters of omeprazole was observed with co-administration of levosulpiride.
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Affiliation(s)
- Muhammad Hashim
- Department of Pharmacy, University of Swabi, Swabi, Pakistan
| | - Lateef Ahmad
- Department of Pharmacy, University of Swabi, Swabi, Pakistan
| | - Amjad Khan
- Department of Pharmacy, Kohat University of Science and Technology (KUST), Kohat, Pakistan
| | - Muhammad Faheem
- Department of Pharmacy, University of Swabi, Swabi, Pakistan
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Development of a particle swarm optimization-backpropagation artificial neural network model and effects of age and gender on pharmacokinetics study of omeprazole enteric-coated tablets in Chinese population. BMC Pharmacol Toxicol 2022; 23:53. [PMID: 35851436 PMCID: PMC9295372 DOI: 10.1186/s40360-022-00594-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 06/30/2022] [Indexed: 11/17/2022] Open
Abstract
Background The effects of age and gender were explored on pharmacokinetics study of omeprazole enteric-coated tablets in Chinese population and a plasma concentration prediction model was developed. All the data (demographic characteristics and results of clinical laboratory tests) were collected from healthy Chinese subjects in pharmacokinetics study using 20 mg omeprazole enteric-coated tablets. A noncompartmental method was used to calculate pharmacokinetic parameters, and 47 subjects were divided into two groups based on the calculation of the median age. Pharmacokinetic data from the low-age and high-age groups or male and female groups were compared by Student t-test. After a total of 12 variables were reconstruct and convert into independent or irrelative variables by principal component analysis, particle swarm optimization (PSO) was used to construct a backpropagation artificial neural network (BPANN) model. Result The model was fully validated and used to predict the plasma concentration in Chinese population. It was noticed that the Cmax, AUC0-t, AUC0-∞ and t1/2 values have significant differences when omeprazole was administered by low-age groups or high-age groups while there were slight or no significant differences of pharmacokinetic data were found between male and female subjects. The PSO-BPANN model was fully validated and there was 0.000355 for MSE, 0.000133 for the magnitude of the gradient, 50 for the number of validation checks. The correlation coefficient of training, validation, test groups were 0.949, 0.903 and 0.874. Conclusion It is necessary to pay attention to the age and gender effects on omeprazole and PSO-BPANN model could be used to predict omeprazole concentration in Chinese subjects to minimize the associated morbidity and mortality with peptic ulcer. Trial registration The study was registered in China Drug Clinical Trial Registration and Information Publicity Platform (http://www.chinadrugtrials.org.cn), the registration number was CTR20170876, and the full date of registration was 04/AUG/2017.
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Application of nickel zinc ferrite/graphene nanocomposite as a modifier for fabrication of a sensitive electrochemical sensor for determination of omeprazole in real samples. J Colloid Interface Sci 2017; 495:1-8. [DOI: 10.1016/j.jcis.2017.01.116] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 01/30/2017] [Accepted: 01/31/2017] [Indexed: 02/06/2023]
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Park S, Hyun YJ, Kim YR, Lee JH, Ryu S, Kim JM, Oh WY, Na HS, Lee JG, Seo DW, Hwang IY, Park Z, Jang IJ, Oh J, Choi SE. Effects of CYP2C19 Genetic Polymorphisms on PK/PD Responses of Omeprazole in Korean Healthy Volunteers. J Korean Med Sci 2017; 32:729-736. [PMID: 28378544 PMCID: PMC5383603 DOI: 10.3346/jkms.2017.32.5.729] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 02/11/2017] [Indexed: 12/27/2022] Open
Abstract
The aim of this study was to examine the effects of CYP2C19*2 and *3 genetic polymorphisms on omeprazole pharmacokinetic (PK) and pharmacodynamic (PD) responses. Twenty-four healthy Korean volunteers were enrolled and given 20 mg omeprazole orally once daily for 8 days. The genotypes of CYP2C19 single nucleotide polymorphisms (SNPs) (*2, *3, and *17) were screened. The plasma concentrations of omeprazole, omeprazole sulfone, and 5-hydroxy (5-OH) omeprazole were determined by liquid chromatography with tandem mass spectrometry (LC-MS/MS). The noncompartmental method was used for the determination of PK parameters. Change of mean pH and proportion (%) of time of gastric pH above 4.0 were estimated. The poor metabolizer (PM) group had the lowest metabolic ratio and exhibited the highest area under the curve (AUC) for omeprazole among the CYP2C19 phenotype groups. The PM group showed the greatest change of mean pH and the highest % time of gastric pH above 4.0. The relationship between AUC of omeprazole and % time of gastric pH above 4.0 was confirmed. The study demonstrates that CYP2C19*2 and *3 influence the PKs and PDs of omeprazole in Korean healthy volunteers.
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Affiliation(s)
- Sunny Park
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Yang Jin Hyun
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Yu Ran Kim
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Ju Hyun Lee
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Sunae Ryu
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Jeong Mi Kim
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Woo Yong Oh
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Han Sung Na
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Jong Gu Lee
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Doo Won Seo
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - In Yeong Hwang
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - Zewon Park
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea
| | - In Jin Jang
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - Jaeseong Oh
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - Seung Eun Choi
- Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Korea.
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Koukoula M, Dotsikas Y, Molou E, Schulpis KH, Thodi G, Chatzidaki M, Triantafylli O, Loukas YL. Study of the effect of CYP2C19 polymorphisms on omeprazole pharmacokinetics by utilizing validated LC–MS/MS and Real Time-PCR methods. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1047:173-179. [DOI: 10.1016/j.jchromb.2016.06.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 05/08/2016] [Accepted: 06/27/2016] [Indexed: 11/15/2022]
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Xavier AS, Kumar SV, Sundaram R, Francis J, Shewade DG. Effect of antituberculosis treatment on CYP2C19 enzyme activity in genetically polymorphic South Indian Tamilian population. Fundam Clin Pharmacol 2016; 30:607-615. [PMID: 27393733 DOI: 10.1111/fcp.12218] [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: 02/28/2016] [Revised: 07/04/2016] [Accepted: 07/07/2016] [Indexed: 11/30/2022]
Abstract
Patients on antituberculosis therapy (ATT) are more prone to drug interactions in the presence of coexisting illnesses which require drug therapy. Rifampicin is a pleiotropic inducer of CYP enzymes, and isoniazid is an enzyme inhibitor. Genetic variations are common in the gene coding for CYP2C19 enzyme. These variations would be important in predicting the individual variations in CYP2C19 activity. The objectives of the study were to find the net effect of 1-month ATT on CYP2C19 enzyme activity and its association with CYP2C19 genetic polymorphisms. Newly diagnosed tuberculosis patients (n = 125) were included in the study. Before commencing ATT, they were given a single dose of omeprazole 20 mg as a probe drug for CYP2C19. Blood sample was collected after 3 h to carry out phenotyping for CYP2C19 enzyme by measuring omeprazole hydroxylation index (OHI) using LC-MS/MS. The phenotyping procedure was repeated after 1 month of ATT. CYP2C19 genotyping was carried out by PCR-RFLP method. Significant reduction in OHI was observed after 1 month of ATT in all the metabolizer groups. The percentage reduction in OHI was maximum with poor metabolizers, 84.1 (IQR - 74.6, 86.6), and minimum with ultra-rapid metabolizers, 39.6 (IQR - 12.7, 54.7). CYP2C19 enzyme induction is predominant in patients after 1 month of antituberculosis treatment (ATT). Genetic variations in the enzyme could not clearly explain the interindividual differences in induction. There is a potential risk of drug failure/adverse effect in poor metabolizers regardless of their genotype after ATT.
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Affiliation(s)
- Alphienes Stanley Xavier
- Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry Union territory, India, 605 006
| | - Saka Vinod Kumar
- Department of Pulmonary Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry Union territory, India, 605 006
| | - Rajan Sundaram
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry Union territory, India, 605 006
| | - Jose Francis
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry Union territory, India, 605 006
| | - Deepak Gopal Shewade
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry Union territory, India, 605 006
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Ahmad L, Iqbal Z, Shah Y, Watson DG, Khan A, Khan MI, Khuda F, Khan A, Nasir F. Simple and Fast Liquid Chromatography–Mass Spectrometry (LC–MS) Method for the Determination of Omeprazole, 5-hydroxyomeprazole, and Omeprazole Sulphone in Human Plasma. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2014.951763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Lateef Ahmad
- Department of Pharmacy, University of Swabi, Pakistan
| | - Zafar Iqbal
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Yasar Shah
- Department of Pharmacy, University of Swabi, Pakistan
| | - D. G. Watson
- Strathclyde Institute of Pharmaceutical and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Abad Khan
- Department of Pharmacy, University of Swabi, Pakistan
| | | | - Fazli Khuda
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Abbas Khan
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Fazli Nasir
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
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Belal F, Sharaf EL-Din M, Tolba MM, Alaa H. Enhanced spectrofluorimetric determination of esomeprazole and pantoprazole in dosage forms and spiked human plasma using organized media. LUMINESCENCE 2014; 30:343-51. [DOI: 10.1002/bio.2737] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 06/02/2014] [Accepted: 06/14/2014] [Indexed: 12/24/2022]
Affiliation(s)
- Fathalla Belal
- Department of Analytical Chemistry, Faculty of Pharmacy; University of Mansoura; 35516 Mansoura Egypt
| | - Mohie Sharaf EL-Din
- Department of Analytical Chemistry, Faculty of Pharmacy; University of Mansoura; 35516 Mansoura Egypt
| | - Manar M. Tolba
- Department of Analytical Chemistry, Faculty of Pharmacy; University of Mansoura; 35516 Mansoura Egypt
| | - Heba Alaa
- Department of Analytical Chemistry, Faculty of Pharmacy; University of Mansoura; 35516 Mansoura Egypt
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Kong D, Lin B, Han Y, Zheng X, Zhou X, Li Q, Chi Y, Chen G. Omeprazole as a strong coreactant in the electrochemiluminescence of Ru(bpy)32+. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.12.182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Nevado JJB, Peñalvo GC, Dorado RMR, Robledo VR. Simultaneous determination of omeprazole and their main metabolites in human urine samples by capillary electrophoresis using electrospray ionization-mass spectrometry detection. J Pharm Biomed Anal 2014; 92:211-9. [PMID: 24530982 DOI: 10.1016/j.jpba.2013.12.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 12/13/2013] [Accepted: 12/18/2013] [Indexed: 11/17/2022]
Abstract
We report a novel method for the simultaneous determination of omeprazole and their main metabolites (omeprazole sulphide, omeprazole sulphone and 5-hydroxy omeprazole) in human urine samples. For this purpose, two new capillary electrophoresis (CE) methods were developed for the simultaneous determination of target compounds, using initially diode-array for optical detection and electrospray ionization-mass spectrometry (ESI-MS) for metabolites identification and identity confirmation. A new metabolite (5-hydroxysulphide omeprazole) was identified by electrospray ionization multi-stage mass spectrometry (ESI-MS2) fragment which was then used to support the proposed chemical structure. Pharmacokinetic results using CE method were compared with those obtained when a HPLC method was used. Equivalent pharmacokinetics profiles resulted when any analytical methods were carried out.
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Affiliation(s)
- Juan José Berzas Nevado
- Department of Analytical Chemistry and Food Technology, Faculty of Chemistry, University of Castilla-La Mancha, Ciudad Real, Spain
| | - Gregorio Castañeda Peñalvo
- Department of Analytical Chemistry and Food Technology, Faculty of Chemistry, University of Castilla-La Mancha, Ciudad Real, Spain
| | - Rosa María Rodríguez Dorado
- Department of Analytical Chemistry and Food Technology, Faculty of Chemistry, University of Castilla-La Mancha, Ciudad Real, Spain
| | - Virginia Rodríguez Robledo
- Department of Analytical Chemistry and Food Technology, Faculty of Pharmacy University of Castilla-La Mancha, Albacete, Spain.
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Reddy PS, Hotha KK, Sait S. Complexity in estimation of esomeprazole and its related impurities' stability in various stress conditions in low-dose aspirin and esomeprazole magnesium capsules. Sci Pharm 2013; 81:475-92. [PMID: 23833714 PMCID: PMC3700076 DOI: 10.3797/scipharm.1212-13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 02/18/2013] [Indexed: 12/12/2022] Open
Abstract
A complex, sensitive, and precise high-performance liquid chromatographic method for the profiling of impurities of esomeprazole in low-dose aspirin and esomeprazole capsules has been developed, validated, and used for the determination of impurities in pharmaceutical products. Esomeprazole and its related impurities’ development in the presence of aspirin was traditionally difficult due to aspirin’s sensitivity to basic conditions and esomeprazole’s sensitivity to acidic conditions. When aspirin is under basic, humid, and extreme temperature conditions, it produces salicylic acid and acetic acid moieties. These two byproducts create an acidic environment for the esomeprazole. Due to the volatility and migration phenomenon of the produced acetic acid and salicylic acid from aspirin in the capsule dosage form, esomeprazole’s purity, stability, and quantification are affected. The objective of the present research work was to develop a gradient reversed-phase liquid chromatographic method to separate all the degradation products and process-related impurities from the main peak. The impurities were well-separated on a RP8 column (150 mm × 4.6mm, X-terra, RP8, 3.5μm) by the gradient program using a glycine buffer (0.08 M, pH adjusted to 9.0 with 50% NaOH), acetonitrile, and methanol at a flow rate of 1.0 mL min−1 with detection wavelength at 305 nm and column temperature at 30°C. The developed method was found to be specific, precise, linear, accurate, rugged, and robust. LOQ values for all of the known impurities were below reporting thresholds. The drug was subjected to stress conditions of hydrolysis, oxidation, photolysis, and thermal degradation in the presence of aspirin. The developed RP-HPLC method was validated according to the present ICH guidelines for specificity, linearity, accuracy, precision, limit of detection, limit of quantification, ruggedness, and robustness.
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Affiliation(s)
- Palavai Sripal Reddy
- Analytical Research and Development, IPDO, Dr. Reddy's. Ltd. Hyderabad, 500072, India. ; JNT University, Kukatpally, Hyderabad, 500085, A.P, India
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Ahmad L, Iqbal Z, Nazir S, Shah Y, Khan A, Khan MI, Nasir F, Khan A. OPTIMIZATION AND VALIDATION OF HPLC-UV METHOD FOR SIMULTANEOUS DETERMINATION OF OMEPRAZOLE AND ITS METABOLITES IN HUMAN PLASMA: EFFECTS OF VARIOUS EXPERIMENTAL CONDITIONS AND PARAMETERS. J LIQ CHROMATOGR R T 2011. [DOI: 10.1080/10826076.2011.569807] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Lateef Ahmad
- a Department of Pharmacy , University of Peshawar , Peshawar, Pakistan
| | - Zafar Iqbal
- a Department of Pharmacy , University of Peshawar , Peshawar, Pakistan
| | - Shabnam Nazir
- a Department of Pharmacy , University of Peshawar , Peshawar, Pakistan
| | - Yasar Shah
- a Department of Pharmacy , University of Peshawar , Peshawar, Pakistan
| | - Abad Khan
- a Department of Pharmacy , University of Peshawar , Peshawar, Pakistan
| | - Muhammad I. Khan
- a Department of Pharmacy , University of Peshawar , Peshawar, Pakistan
| | - Fazli Nasir
- a Department of Pharmacy , University of Peshawar , Peshawar, Pakistan
| | - Abbas Khan
- a Department of Pharmacy , University of Peshawar , Peshawar, Pakistan
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Nies AT, Hofmann U, Resch C, Schaeffeler E, Rius M, Schwab M. Proton pump inhibitors inhibit metformin uptake by organic cation transporters (OCTs). PLoS One 2011; 6:e22163. [PMID: 21779389 PMCID: PMC3136501 DOI: 10.1371/journal.pone.0022163] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Accepted: 06/16/2011] [Indexed: 11/19/2022] Open
Abstract
Metformin, an oral insulin-sensitizing drug, is actively transported into cells by organic cation transporters (OCT) 1, 2, and 3 (encoded by SLC22A1, SLC22A2, or SLC22A3), which are tissue specifically expressed at significant levels in various organs such as liver, muscle, and kidney. Because metformin does not undergo hepatic metabolism, drug-drug interaction by inhibition of OCT transporters may be important. So far, comprehensive data on the interaction of proton pump inhibitors (PPIs) with OCTs are missing although PPIs are frequently used in metformin-treated patients. Using in silico modeling and computational analyses, we derived pharmacophore models indicating that PPIs (i.e. omeprazole, pantoprazole, lansoprazole, rabeprazole, and tenatoprazole) are potent OCT inhibitors. We then established stably transfected cell lines expressing the human uptake transporters OCT1, OCT2, or OCT3 and tested whether these PPIs inhibit OCT-mediated metformin uptake in vitro. All tested PPIs significantly inhibited metformin uptake by OCT1, OCT2, and OCT3 in a concentration-dependent manner. Half-maximal inhibitory concentration values (IC(50)) were in the low micromolar range (3-36 µM) and thereby in the range of IC(50) values of other potent OCT drug inhibitors. Finally, we tested whether the PPIs are also transported by OCTs, but did not identify PPIs as OCT substrates. In conclusion, PPIs are potent inhibitors of the OCT-mediated metformin transport in vitro. Further studies are needed to elucidate the clinical relevance of this drug-drug interaction with potential consequences on metformin disposition and/or efficacy.
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Affiliation(s)
- Anne T Nies
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany.
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Dodgen TM, Cromarty AD, Pepper MS. Quantitative plasma analysis using automated online solid-phase extraction with column switching LC-MS/MS for characterising cytochrome P450 2D6 and 2C19 metabolism. J Sep Sci 2011; 34:1102-10. [DOI: 10.1002/jssc.201000920] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 02/12/2011] [Accepted: 02/17/2011] [Indexed: 12/18/2022]
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Flor S, Tripodi V, Scioscia S, Revello L, Lucangioli S. FAST AND SENSITIVE NEW HPLC-UV METHOD FOR DETERMINATION OF OMEPRAZOLE AND MAJOR RELATED SUBSTANCES IN PHARMACEUTICAL FORMULATION. J LIQ CHROMATOGR R T 2010. [DOI: 10.1080/10826076.2010.519232] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sabrina Flor
- a Department of Analytical Chemistry and Physicochemistry, Faculty of Pharmacy and Biochemistry , University of Buenos Aires , Argentina
| | - Valeria Tripodi
- a Department of Analytical Chemistry and Physicochemistry, Faculty of Pharmacy and Biochemistry , University of Buenos Aires , Argentina
- b Consejo Nacional de Investigaciones Científicas y Tecnológicas, CONICET , Argentina
| | - Silvia Scioscia
- a Department of Analytical Chemistry and Physicochemistry, Faculty of Pharmacy and Biochemistry , University of Buenos Aires , Argentina
| | - Lucas Revello
- a Department of Analytical Chemistry and Physicochemistry, Faculty of Pharmacy and Biochemistry , University of Buenos Aires , Argentina
| | - Silvia Lucangioli
- b Consejo Nacional de Investigaciones Científicas y Tecnológicas, CONICET , Argentina
- c Department of Pharmaceutical Technology, Faculty of Pharmacy and Biochemistry , University of Buenos Aires , Argentina
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Kumar KS, Samnani PB. Preconcentration and Quantitative Determination of Esomeprazole Magnesium Present in Water. ANAL LETT 2010. [DOI: 10.1080/00032710903502058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Al-Badr AA. Omeprazole. PROFILES OF DRUG SUBSTANCES, EXCIPIENTS, AND RELATED METHODOLOGY 2010; 35:151-262. [PMID: 22469222 DOI: 10.1016/s1871-5125(10)35004-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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New sensitive kinetic spectrophotometric methods for determination of omeprazole in dosage forms. Int J Anal Chem 2010; 2009:307045. [PMID: 20140076 PMCID: PMC2814128 DOI: 10.1155/2009/307045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2009] [Revised: 07/30/2009] [Accepted: 09/08/2009] [Indexed: 11/23/2022] Open
Abstract
New rapid, sensitive, and accurate kinetic spectrophotometric methods were developed, for the first time, to determine omeprazole (OMZ) in its dosage forms. The methods were based on the formation of charge-transfer complexes with both iodine and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ). The variables that affected the reactions were carefully studied and optimized. The formed complexes and the site of interaction were examined by UV/VIS, IR, and 1H-NMR techniques, and computational molecular modeling. Under optimum conditions, the stoichiometry of the reactions between OMZ and the acceptors was found to be 1 : 1. The order of the reactions and the specific rate constants were determined. The thermodynamics of the complexes were computed and the mechanism of the reactions was postulated. The initial rate and fixed time methods were utilized for the determination of OMZ concentrations. The linear ranges for the proposed methods were 0.10–3.00 and 0.50–25.00 μg mL−1 with the lowest LOD of 0.03 and 0.14 μg mL−1 for iodine and DDQ, respectively. Analytical performance of the methods was statistically validated; RSD was <1.25% for the precision and <1.95% for the accuracy. The proposed methods were successfully applied to the analysis of OMZ in its dosage forms; the recovery was 98.91–100.32% ± 0.94–1.84, and was found to be comparable with that of reference method.
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De Smet J, Boussery K, De Cock P, De Paepe P, Remon JP, Van Winckel M, Van Bocxlaer J. A bio-analytical hydrophilic interaction LC-MS/MS method for the simultaneous quantification of omeprazole and lansoprazole in human plasma in support of a pharmacokinetic omeprazole study in children. J Sep Sci 2010; 33:939-47. [DOI: 10.1002/jssc.200900590] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Bharathi DV, Hotha KK, Jagadeesh B, Chatki PK, Thriveni K, Mullangi R, Naidu A. Simultaneous estimation of four proton pump inhibitors-lansoprazole, omeprazole, pantoprazole and rabeprazole: development of a novel generic HPLC-UV method and its application to clinical pharmacokinetic study. Biomed Chromatogr 2009; 23:732-9. [DOI: 10.1002/bmc.1177] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Vittal S, Ganneboina R, Layek B, Trivedi RK, Hotha KK, Bharathi DV, Mullangi R. Highly sensitive method for the determination of omeprazole in human plasma by liquid chromatography-electrospray ionization tandem mass spectrometry: application to a clinical pharmacokinetic study. Biomed Chromatogr 2009; 23:390-6. [DOI: 10.1002/bmc.1129] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Rambla-Alegre M, Esteve-Romero J, Carda-Broch S. Analysis of omeprazole and its main metabolites by liquid chromatography using hybrid micellar mobile phases. Anal Chim Acta 2009; 633:250-6. [DOI: 10.1016/j.aca.2008.11.059] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2008] [Revised: 10/06/2008] [Accepted: 11/21/2008] [Indexed: 10/21/2022]
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Hanioka N, Tsuneto Y, Saito Y, Maekawa K, Sawada JI, Narimatsu S. Influence of CYP2C19*18 and CYP2C19*19 Alleles on Omeprazole 5-Hydroxylation: In vitro Functional Analysis of Recombinant Enzymes Expressed in Saccharomyces cerevisiae. Basic Clin Pharmacol Toxicol 2008; 102:388-93. [DOI: 10.1111/j.1742-7843.2008.00222.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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EL-Enany N, Belal F, Rizk M. The alternating current polarographic behavior and determination of lansoprazole and omeprazole in dosage forms and biological fluids. ACTA ACUST UNITED AC 2008; 70:889-96. [DOI: 10.1016/j.jprot.2008.02.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2007] [Revised: 10/23/2007] [Accepted: 02/20/2008] [Indexed: 11/16/2022]
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Martens-Lobenhoffer J, Reiche I, Tröger U, Mönkemüller K, Malfertheiner P, Bode-Böger SM. Enantioselective quantification of omeprazole and its main metabolites in human serum by chiral HPLC–atmospheric pressure photoionization tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 857:301-7. [PMID: 17702674 DOI: 10.1016/j.jchromb.2007.07.038] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2007] [Revised: 07/17/2007] [Accepted: 07/24/2007] [Indexed: 11/28/2022]
Abstract
Omeprazole is a proton pump inhibitor drug in widespread use for the reduction of gastric acid production. It is also proposed as a test substance for the phenotyping of cytochrome CYP3A4 and CYP2C19 enzyme activities. For this purpose, it is necessary to quantify, additionally to omeprazole, the two main metabolites 5-hydroxyomeprazole and omeprazole-sulfon in human plasma. Since omeprazole is a racemic mixture of two enantiomers and its enzymatic decomposition depends in part on its chiral configuration, full information about its metabolic breakdown can only be gained by enantioselective quantification of the drug and its metabolites. We introduce a new LC-MS/MS method that is capable to simultaneously quantify omeprazole and its two main metabolites enantioselectively in human serum. The method features solid-phase extraction, normal phase chiral HPLC separation and atmospheric pressure photoionization tandem mass spectrometry. As internal standards serve stable isotope labeled omeprazole and 5-hydroxyomeprazole. The calibration functions are linear in the range of 5-750 ng/ml for the omeprazole enantiomers and omeprazole-sulfon, and 2.5-375 ng/ml for the 5-hydroxyomeprazole enantiomers, respectively. Intra- and inter-day relative standard deviations are <7% for omeprazole and 5-hydroxyomeprazole enantiomers, and <9% for omeprazole-sulfon, respectively.
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Affiliation(s)
- Jens Martens-Lobenhoffer
- Institute of Clinical Pharmacology, Otto-von-Guericke University, Leipziger Strasse 44, 39120 Magdeburg, Germany.
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Espinosa Bosch M, Ruiz Sánchez AJ, Sánchez Rojas F, Bosch Ojeda C. Analytical methodologies for the determination of omeprazole: An overview. J Pharm Biomed Anal 2007; 44:831-44. [PMID: 17532167 DOI: 10.1016/j.jpba.2007.04.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2007] [Revised: 04/16/2007] [Accepted: 04/17/2007] [Indexed: 10/23/2022]
Abstract
Omeprazole, a gastric acid pump inhibitor, dose-dependently controls gastric acid secretion; the drug has greater antisecretory activity than histamine H(2)-receptor antagonists. Omeprazole has been determined in formulations and biological fluids by a variety of methods such as spectrophotometry, high-performance liquid chromatography with ultraviolet detection and liquid chromatography coupled with tandem mass spectrometry. The overview includes the most relevant analytical methodologies used in its determination since the origin still today.
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Affiliation(s)
- M Espinosa Bosch
- Department of Pharmacy, General Hospital, University Hospital Virgen del Rocío, Manuel Siurot s/n, 41013 Seville, Spain
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Macek J, Klíma J, Ptácek P. Rapid determination of omeprazole in human plasma by protein precipitation and liquid chromatography–tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 852:282-7. [PMID: 17293174 DOI: 10.1016/j.jchromb.2007.01.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2006] [Revised: 01/09/2007] [Accepted: 01/17/2007] [Indexed: 01/16/2023]
Abstract
A rapid, sensitive and reliable method was developed to quantitate omeprazole in human plasma using liquid chromatography-tandem mass spectrometry. The assay is based on protein precipitation with acetonitrile and reversed-phase liquid chromatography performed on an octadecylsilica column (55 mm x 2mm, 3 microm particles), the mobile phase consisted of methanol-10 mM ammonium acetate (60:40, v/v). Omeprazole and flunitrazepam, the internal standard, elute at 0.80+/-0.10 min with a total run time 1.35 min. Quantification was through positive ion mode and selected reaction monitoring mode at m/z 346.1-->197.9 for omeprazole and m/z 314.0-->268.0 for flunitrazepam, respectively. The lower limit of quantitation was 1.2 ng/ml using 0.25 ml of plasma and linearity was observed from 1.2 to 1200 ng/ml. Within-day and between-day precision expressed by relative standard deviation was less than 5% and inaccuracy did not exceed 12%. The assay was applied to the analysis of samples from a pharmacokinetic study.
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Affiliation(s)
- J Macek
- Pharmakl s.r.o., Seydlerova 2451, CZ-15800 Prague 13, Czech Republic.
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Ishii M, Sato M, Ogawa M, Takubo T, Hara K, Ishii Y. Simultaneous Determination of Omeprazole and its Metabolites (5′‐Hydroxyomeprazole and Omeprazole Sulfone) in Human Plasma by Liquid Chromatography‐Tandem Mass Spectrometry. J LIQ CHROMATOGR R T 2007. [DOI: 10.1080/10826070701360590] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Mikio Ishii
- a Drug Metabolism , Tsukuba Research Institute, Banyu Pharmaceutical Co. Ltd. , Ibaraki, Japan
| | - Masahiko Sato
- a Drug Metabolism , Tsukuba Research Institute, Banyu Pharmaceutical Co. Ltd. , Ibaraki, Japan
| | - Masayuki Ogawa
- a Drug Metabolism , Tsukuba Research Institute, Banyu Pharmaceutical Co. Ltd. , Ibaraki, Japan
| | - Takatoshi Takubo
- a Drug Metabolism , Tsukuba Research Institute, Banyu Pharmaceutical Co. Ltd. , Ibaraki, Japan
| | - Ken‐ichi Hara
- a Drug Metabolism , Tsukuba Research Institute, Banyu Pharmaceutical Co. Ltd. , Ibaraki, Japan
| | - Yasuyuki Ishii
- a Drug Metabolism , Tsukuba Research Institute, Banyu Pharmaceutical Co. Ltd. , Ibaraki, Japan
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Hultman I, Stenhoff H, Liljeblad M. Determination of esomeprazole and its two main metabolites in human, rat and dog plasma by liquid chromatography with tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2006; 848:317-22. [PMID: 17142113 DOI: 10.1016/j.jchromb.2006.10.074] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2006] [Revised: 10/20/2006] [Accepted: 10/24/2006] [Indexed: 10/23/2022]
Abstract
A LC-MS/MS method was developed for quantitative determination of esomeprazole, and its two main metabolites 5-hydroxyesomeprazole and omeprazole sulphone in 25 microL human, rat or dog plasma. The analytes and their internal standards were extracted from plasma into methyl tert-butyl ether - dichloromethane (3:2, v/v). After evaporation and reconstitution of the organic extract the analytes were separated on a reversed-phase LC column and measured by atmospheric-pressure positive ionisation MS. The linearity range was 20-20,000 nmol/L for esomeprazole and omeprazole sulphone, and 20-4000 nmol/L for 5-hydroxyesomeprazole. The extraction recoveries ranged between 80 and 105%. The intra- and inter-day imprecision were less than 9.5% with accuracy between 97.7% and 100.1% for all analytes.
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Affiliation(s)
- Ia Hultman
- Development DMPK & Bioanalysis, AstraZeneca R&D Mölndal, SE-431 83 Mölndal, Sweden
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Current literature in mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2006; 41:1520-1531. [PMID: 17103385 DOI: 10.1002/jms.958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
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