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Dziadosz M, Rosenberger W, Klintschar M, Teske J. The analysis of ramipril/ramiprilat concentration in human serum with liquid chromatography-tandem mass spectrometry - interpretation of high concentrations for the purposes of forensic toxicology. Forensic Sci Med Pathol 2024; 20:100-105. [PMID: 37060536 PMCID: PMC10944385 DOI: 10.1007/s12024-023-00621-6] [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] [Accepted: 03/27/2023] [Indexed: 04/16/2023]
Abstract
Ramipril is a popular angiotensin-converting enzyme inhibitor applied in the treatment of hypertension. Its therapeutic effect is oriented on the concentration of the active metabolite ramiprilat. The information about toxic drug levels is missing in the literature. Therefore, the aim of this work was an indication of possible toxic ranges based on the analysis of real samples with high ramiprilat concentrations. For these purposes, an appropriate analytical LC-MS/MS method was developed and validated according to forensic guidelines and applied in the routine. Most real samples targeted for ramipril/ramiprilat were associated with the typical therapeutic drug range of 1-40 ng/mL described in the literature. However, higher drug levels with ramiprilat concentrations above 100 ng/mL could also be observed infrequently in cases of driving under the influence of drugs or attempted suicides. To the best of the author's knowledge, this is the first time antemortem ramipril and ramiprilat concentrations associated with driving under the influence of drugs and suicide attempts were discussed from a forensic point of view. The collected data enabled an indication of the ramiprilat toxic concentration range from about 600 ng/mL to at least 3500 ng/mL. The toxic concentration range discussed can be applied in the forensic practice as a reference for future cases.
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Affiliation(s)
- Marek Dziadosz
- Institute of Legal Medicine, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
| | - Wolfgang Rosenberger
- Institute of Legal Medicine, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Michael Klintschar
- Institute of Legal Medicine, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Jörg Teske
- Institute of Legal Medicine, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625, Hannover, Germany
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2
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Bioanalytical LC-MS/MS method for simultaneous estimation of atorvastatin, its major active metabolites and ezetimibe. Bioanalysis 2022; 14:1349-1363. [PMID: 36621870 DOI: 10.4155/bio-2022-0203] [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: 01/10/2023] Open
Abstract
Background: Hyperlipidemia is one of the most common chronic diseases encountered globally, and atorvastatin (ATV) is mainly metabolized into two major active metabolites. Methodology: Hence, we aimed to estimate ATV and ezetimibe (EZE) simultaneously in the presence of ATV major and active metabolites using a validated LC-MS/MS method. Conclusion: The proposed method was linear (r2 >0.99), accurate (92.02-109.94%) and precise (CV% ≤14) over the concentration range of 0.50-120 ng/ml, 0.20-48 ng/ml, 0.50-120 ng/ml and 0.20-48 ng/ml for ATV, EZE, 2-hydroxy ATV and 4-hydroxy ATV, respectively. The applied liquid-liquid extraction gave rise to reliable extraction recoveries of 84.91 ± 1.14%, 85.20 ± 1.62%, 85.46 ± 0.41% and 105.46 ± 2.35% for ATV, EZE, 2-hydroxy ATV and 4-hydroxy ATV, respectively.
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Wadhwa K, Rana AC. A review on liquid chromatographic methods for the bioanalysis of atorvastatin. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2021. [DOI: 10.1186/s43094-020-00146-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Abstract
Background
The unsatisfied clinical need has encouraged the development and validation of bioanalytical procedures for the quantification of drugs in biological samples because the monitoring of drug concentrations helps in personalizing the patient’s pharmacotherapy, assessing the adherence to therapy, and is also extensively useful for pharmacokinetics and drug-drug interactions studies.
Main Body
The present review aimed to provide insightful information about the various liquid chromatographic methods developed till 2019 for the analysis and quantification of atorvastatin, its metabolites, and co-administered drugs in the various biological matrices like the serum, plasma, and urine with special emphasis on sample preparation techniques applied before chromatographic analysis along with different chromatographic conditions and their validation data. A total of 88 published papers that have used liquid chromatography techniques to quantify atorvastatin in biological fluids are included in the study. Out of the total reported liquid chromatographic methods, 34% used UV spectrophotometer as a detector, and 55% used MS/MS as a detector. Whereas 38% of them used protein precipitation procedure, 33% applied liquid-liquid extraction approach, and 12% employed solid-phase extraction technique for sample preparation.
Conclusion
In the last decade, numerous bioanalytical procedures have been developed for the quantification of atorvastatin in different biological samples using liquid chromatographic techniques. Moreover, advancement in technology developed several new and advanced sample preparation approaches like dispersive liquid-liquid extraction, microextraction by packed sorbent, which have high recovery rates than conventional procedures. Thus, the summarized review may be consulted as an informative tool to support the optimization of new bioanalytical methods for the quantification of atorvastatin.
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Ahmed HM, Belal TS, Shaalan RA, El Yazbi FA, Elonsy SM. Validated capillary zone electrophoretic method for simultaneous analysis of benazepril in combination with amlodipine besylate and hydrochlorothiazide. ACTA CHROMATOGR 2020. [DOI: 10.1556/1326.2019.00686] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In this work, a novel, simple, and quick capillary zone electrophoresis (CZE) method was proposed for simultaneous analysis of benazepril (BEN) with other co-administrated antihypertensive drugs, amlodipine besylate (AML) and hydrochlorothiazide (HCT), using a diode array detector (DAD). A fused silica capillary (78.5 cm total length, 70 cm effective length, and 75 μm id) was used in separation using a 40 mM phosphate buffer pH 7.5 as a running background electrolyte (BGE) under a positive potential of 30 KV, at a stable temperature of 25 °C for capillary during separation. Hydrodynamic injections were performed for 12 s at 50 mbar, and detection was performed at 210 nm for AML and BEN, at 225 nm for HCT, and at 232 nm for xipamide (XIP) added as an internal standard (IS). Separation of the three analyzed drugs and the IS was performed in less than 8 min. Migration times were 4.06, 5.23, 6.69, and 7.3 min for AML, HCT, BEN, and XIP, respectively. The findings proved that the proposed method was linear in the range of 10–80 μg/mL for all drugs with correlation coefficients >0.9994. The limit of detection (LOD) values of AML, HCT, and BEN were 1.004, 1.224, and 0.896 μg/mL, respectively, whereas the limit of quantification (LOQ) values were 3.124, 3.727, and 2.749 μg/mL for the cited drugs, respectively. Peak identity and purity were confirmed by DAD. The developed CZE method was applied for the analysis of the three antihypertensive drugs successfully in their combined pharmaceutical tablets, and it can be used for the quality control of single-pill combination (SPC) samples of these drugs in short time.
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Affiliation(s)
- Hytham M. Ahmed
- 1 Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Shebin El-Kom, Egypt
| | - Tarek S. Belal
- 2 Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt
| | - Rasha A. Shaalan
- 2 Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt
- 3 Pharmaceutical Chemistry Department, Faculty of Pharmacy and Drug Manufacturing, Pharos University in Alexandria, Egypt
| | - Fawzy A. El Yazbi
- 2 Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt
| | - Sohila M. Elonsy
- 4 Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt
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Kokilambigai KS, Kavitha J, Seetharaman R, Lakshmi KS, Sai Susmitha A. Analytical and Bioanalytical Techniques for the Quantification of the Calcium Channel Blocker - Amlodipine: A Critical Review. Crit Rev Anal Chem 2020; 51:754-786. [PMID: 32506944 DOI: 10.1080/10408347.2020.1772036] [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] [Indexed: 10/24/2022]
Abstract
Hypertension is a condition in which blood pressure is elevated to an extent where benefit is obtained from blood pressure lowering. The risk of complications is proportional to the level that blood pressure raises. Calcium channel blockers are a class of compounds used in the treatment of hypertension. The dihydropyridine (DHP) group, a subclass of the calcium channel blocker works almost exclusively on L-type calcium channels in the peripheral arterioles and reduce blood pressure by reducing total peripheral resistant. Long acting DHP is preferred because they are more convenient for patients and avoid the large fluctuations in plasma drug concentration which are associated with side effects. Amlodipine is the most distinct DHP and the most popular. The drug was patented in the year 1986 and its commercial sale began by 1990. The current article provides a state of art about the analytical and bioanalytical techniques available for the quantification of drug as a single entity and in combined pharmaceutical formulations between 1989 and 2019.
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Affiliation(s)
- K S Kokilambigai
- Department of Pharmaceutical Analysis, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - J Kavitha
- Department of Pharmaceutical Analysis, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - R Seetharaman
- Department of Pharmaceutical Analysis, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - K S Lakshmi
- Department of Pharmaceutical Analysis, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - A Sai Susmitha
- Department of Pharmaceutical Analysis, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
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Nasr JJ, Shalan S. Simultaneous estimation of amlodipine and atorvastatin by micelle-augmented first derivative synchronous spectrofluorimetry and multivariate analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 224:117430. [PMID: 31382228 DOI: 10.1016/j.saa.2019.117430] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 07/25/2019] [Accepted: 07/25/2019] [Indexed: 06/10/2023]
Abstract
Five Selective, rapid and sensitive spectrofluorimetric methods were performed in this study for the simultaneous estimation of amlodipine besylate (AML) and atorvastatin (ATR) in their binary mixtures and combination polypills that are used for management of cardiovascular conditions. The first method depends on micelle-enhanced first derivative synchronous fluorimetric analysis (method I) and the other four methods are multivariate analysis techniques based on the use of factor-based calibration prediction methods comprising partial least squares (PLS), Principal Component Regression (PCR), genetic algorithm PLS (GA-PLS) and genetic algorithm PCR (GA-PCR). The synchronous fluorescence spectra of the solutions were measured at a constant wavelength difference; Δλ = 100 nm. The magnitudes of the peaks of the first derivative spectra (1D) were measured at 292 nm and 387 nm for ATR, and AML correspondingly. The multivariate models were constructed utilizing fifteen mixtures as a calibration set and ten mixtures as a validation set. The linearity of all the methods was in the concentration ranges of (0.1-4.0 μg mL-1, 0.4-10.0 μg mL-1) for AML and ATR, correspondingly. Statistical analysis revealed no significant difference between the proposed methods and the reference method. The validity of the proposed methods allows their suitability for quality control work. All the analysis settings were optimized and all the suggested procedures were applied productively for the determination of both drugs in synthetic mixtures, validation set, and combination polypills.
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Affiliation(s)
- Jenny Jeehan Nasr
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
| | - Shereen Shalan
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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7
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Courlet P, Spaggiari D, Desfontaine V, Cavassini M, Alves Saldanha S, Buclin T, Marzolini C, Csajka C, Decosterd LA. UHPLC-MS/MS assay for simultaneous determination of amlodipine, metoprolol, pravastatin, rosuvastatin, atorvastatin with its active metabolites in human plasma, for population-scale drug-drug interactions studies in people living with HIV. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1125:121733. [PMID: 31374423 DOI: 10.1016/j.jchromb.2019.121733] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/02/2019] [Accepted: 07/24/2019] [Indexed: 11/17/2022]
Abstract
Thanks to highly active antiretroviral treatments, HIV infection is now considered as a chronic condition. Consequently, people living with HIV (PLWH) live longer and encounter more age-related chronic co-morbidities, notably cardiovascular diseases, leading to polypharmacy. As the management of drug-drug interactions (DDIs) constitutes a key aspect of the care of PLWH, the magnitude of pharmacokinetic DDIs between cardiovascular and anti-HIV drugs needs to be more thoroughly characterized. To that endeavour, an UHPLC-MS/MS bioanalytical method has been developed for the simultaneous determination in human plasma of amlodipine, metoprolol, pravastatin, rosuvastatin, atorvastatin and its active metabolites. Plasma samples were subjected to protein precipitation with methanol, followed by evaporation at room temperature under nitrogen of the supernatant, allowing to attain measurable plasma concentrations down to sub-nanogram per milliliter levels. Stable isotope-labelled analytes were used as internal standards. The five drugs and two metabolites were analyzed using a 6-min liquid chromatographic run coupled to electrospray triple quadrupole mass spectrometry detection. The method was validated over the clinically relevant concentrations ranging from 0.3 to 480 ng/mL for amlodipine, atorvastatin and p-OH-atorvastatin, and 0.4 to 480 ng/mL for pravastatin, 0.5 to 480 ng/mL for rosuvastatin and o-OH-atorvastatin, and 3 to 4800 ng/mL for metoprolol. Validation performances such as trueness (95.4-110.8%), repeatability (1.5-13.4%) and intermediate precision (3.6-14.5%) were in agreement with current international recommendations. Accuracy profiles (total error approach) were lying within the limits of ±30% accepted in bioanalysis. This rapid and robust UHPLC-MS/MS assay allows the simultaneous quantification in plasma of the major currently used cardiovascular drugs and offers an efficient analytical tool for clinical pharmacokinetics as well as DDIs studies.
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Affiliation(s)
- Perrine Courlet
- Service of Clinical Pharmacology, Lausanne University Hospital and University of Lausanne, Switzerland.
| | - Dany Spaggiari
- Service of Clinical Pharmacology, Lausanne University Hospital and University of Lausanne, Switzerland.
| | - Vincent Desfontaine
- Service of Clinical Pharmacology, Lausanne University Hospital and University of Lausanne, Switzerland.
| | - Matthias Cavassini
- Service of Infectious Diseases, Lausanne University Hospital and University of Lausanne, Switzerland.
| | - Susana Alves Saldanha
- Service of Clinical Pharmacology, Lausanne University Hospital and University of Lausanne, Switzerland.
| | - Thierry Buclin
- Service of Clinical Pharmacology, Lausanne University Hospital and University of Lausanne, Switzerland.
| | - Catia Marzolini
- Departments of Medicine and Clinical Research, University Hospital of Basel and University of Basel, Switzerland.
| | - Chantal Csajka
- Service of Clinical Pharmacology, Lausanne University Hospital and University of Lausanne, Switzerland; School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Switzerland.
| | - Laurent-Arthur Decosterd
- Service of Clinical Pharmacology, Lausanne University Hospital and University of Lausanne, Switzerland.
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Magdy R, Hemdan A, Fares NV, Farouk M. Determination of amlodipine and atorvastatin mixture by different spectrophotometric methods with or without regression equations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 210:203-211. [PMID: 30453196 DOI: 10.1016/j.saa.2018.11.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 10/29/2018] [Accepted: 11/08/2018] [Indexed: 06/09/2023]
Abstract
Four new, simple, and reproducible spectrophotometric methods were developed and validated for the simultaneous determination of Amlodipine (AML) and Atorvastatin (AT) in bulk powder and pharmaceutical dosage form. The four methods include two progressive and two successive resolution techniques. The two progressive methods are Absorbance Subtraction (AS) and Amplitude Modulation (AM), while the two successive methods are Constant Value (CV) and Concentration Value. In the Concentration Value method, the concentration of the drugs is determined from the graphical representation without the use of regression equations. Linearity range for the two progressive methods was from 5 μg/mL-35 μg/mL while for the two successive methods was from 5 μg/mL-55 μg/mL. The four methods were validated according to the ICH guidelines and were found to be accurate, precise, and selective. The methods were also applied for determination of the mixture in the marketed pharmaceutical dosage form. Results obtained were compared with reported methods. Also, One-way ANOVA statistical test was done between all the proposed spectrophotometric methods where no significant differences were found.
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Affiliation(s)
- Ragaa Magdy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, 6th of October, Egypt.
| | - A Hemdan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, 6th of October, Egypt
| | - N V Fares
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Maha Farouk
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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9
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Hemdan A, Magdy R, Farouk M. Response surface design as a powerful tool for the development of environmentally benign HPLC methods for the determination of two antihypertensive combinations: Greenness assessment by two green analytical chemistry evaluation tools. J Sep Sci 2018; 41:3213-3223. [PMID: 29953735 DOI: 10.1002/jssc.201800317] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/12/2018] [Accepted: 06/19/2018] [Indexed: 11/08/2022]
Abstract
Interest in implementing green chemistry principles in analytical chemistry has grown dramatically in the past few years. The solvents used have the major influence on the greenness of the method. Most conventional high-performance liquid chromatography methods employed utilize solvents that are "hazardous for the environment". In the present study, two-factor three-level response surface design was exploited to develop eco-friendly chromatographic methods for two different mixtures. The first one was atorvastatin and amlodipine and the second one was amlodipine, perindopril, and indapamide. As it is nontoxic to the environment, ethanol was used as the organic modifier in the mobile phase. The separation of the first mixture was attained using phosphate buffer (pH 7)/ethanol (42:58 v/v), and the second mixture was fully resolved using phosphate buffer (pH 5)/ethanol (40:60 v/v). The use of high-performance liquid chromatography allows excellent resolution in a short run time, hence, less waste was produced. The greenness of the developed methods was assessed by two evaluation tools, namely, National Environmental Methods Index and analytical eco-scale, and found to be excellent green analytical methods. Moreover, the developed methods were compared with other reported methods regarding accuracy and greenness and were found to be perfect alternatives to reported methods for separation and quantification of the mixtures.
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Affiliation(s)
- Ahmed Hemdan
- Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ahram Canadian University, Cairo, Egypt
| | - Ragaa Magdy
- Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ahram Canadian University, Cairo, Egypt
| | - Maha Farouk
- Faculty of Pharmacy, Pharmaceutical Analytical Chemistry Department, Ain Shams University, Cairo, Egypt
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10
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Rezk MR, Badr KA. Quantification of amlodipine and atorvastatin in human plasma by UPLC-MS/MS method and its application to a bioequivalence study. Biomed Chromatogr 2018; 32:e4224. [DOI: 10.1002/bmc.4224] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 02/19/2018] [Accepted: 02/23/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Mamdouh R. Rezk
- Analytical Chemistry Department, Faculty of Pharmacy; Cairo University; Cairo Egypt
| | - Kamal A. Badr
- Pharmaceutics Department, Faculty of Pharmacy; Deraya University; Egypt
- Advanced Research Center; Cairo Egypt
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11
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Microdosing Cocktail Assay Development for Drug-Drug Interaction Studies. J Pharm Sci 2018; 107:1973-1986. [PMID: 29548977 DOI: 10.1016/j.xphs.2018.02.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/02/2018] [Accepted: 02/14/2018] [Indexed: 11/23/2022]
Abstract
Methodology for analysis of a microdosing drug cocktail designed to evaluate the contribution of drug transporters and drug metabolizing enzymes to disposition was developed using liquid chromatography-mass spectrometry-based detection. Fast and sensitive methods were developed and qualified for the quantification of statins (pitavastatin, pitavastain lactone, rosuvastatin, atorvastatin, 2-hydroxy, and 4-hydroxy atorvastatin), midazolam, and dabigatran in human plasma. Chromatographic separation was accomplished using reversed-phase liquid chromatography or hydrophilic interaction liquid chromatography with gradient elution and detection by tandem mass spectrometry in the positive ionization mode using electrospray ionization. The lower limit of quantitation (LLOQ) for the statins assay was 1 pg/mL for the 6 analytes with a linear range from 1 to 1000 pg/mL processing 250 μL plasma sample. The midazolam assay LLOQ was 0.5 pg/mL with a linear range of 0.5 to 1000 pg/mL. For the dabigatran assay, the LLOQ was 10 pg/mL with a linear range of 10 to 5000 pg/mL processing 100 μL plasma sample. The intraday and interday precision and accuracy of the assays were within acceptable ranges, and the assays were successfully applied to support a study where a microdose cocktail was dosed to healthy human subjects for simultaneous assessment of clinical drug-drug interactions mediated by major drug transporters and CYP3A.
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12
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Development and validation of RP-HPLC and UV-spectrophotometric methods for rapid simultaneous estimation of amlodipine and benazepril in pure and fixed dose combination. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.11.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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13
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Ultrasound assisted dispersive liquid-liquid microextraction coupled with high performance liquid chromatography designated for bioavailability studies of felodipine combinations in rat plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1046:200-210. [DOI: 10.1016/j.jchromb.2017.01.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 12/30/2016] [Accepted: 01/21/2017] [Indexed: 10/20/2022]
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14
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Kepekci Tekkeli SE, Durmus Z, Onal A. Determination of atorvastatin in human plasma by magnetic solid-phase extraction combined with HPLC and application to a pharmacokinetic study. J LIQ CHROMATOGR R T 2017. [DOI: 10.1080/10826076.2016.1275002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Zehra Durmus
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Bezmialem Vakif University, Istanbul, Turkey
| | - Armagan Onal
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Istanbul, Turkey
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Chen X, Xu B, Yang J, Liu J, Fang D, Gu Y, Jian Z, Tang M, Fu C, Zhang Z, Jiang C, Song X. Simultaneous determination of telmisartan and pitavastatin in rat plasma by UPLC-MS/MS: Application to pharmacokinetic interaction study. J Pharm Biomed Anal 2016; 131:373-379. [PMID: 27643859 DOI: 10.1016/j.jpba.2016.09.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 09/02/2016] [Accepted: 09/03/2016] [Indexed: 02/05/2023]
Abstract
To investigate the pharmacokinetic (PK) interaction between telmisartan (Tel) and pitavastatin (Pit), a rapid and sensitive ultra performance liquid chromatography-tandem mass spectrometric assay method had been successfully established and fully validated for the simultaneous quantification of Tel and Pit in rat plasma. A simple protein precipitation procedure was adopted for the sample preparation with satisfactory extraction recovery for both analytes and the internal standard. The samples were chromatographed on an Inertsil ODS-3 C18 column (100mm×2.1mm, 2μm) using a mixture of acetonitrile and 10mM ammonium acetate containing 0.1% formic acid (60: 40, v/v) as the mobile phase at a flow rate of 0.4mL/min. The calibration curves obtained were linear (r>0.99) over the concentration range of 2-200ng/mL for Tel and 1-100ng/mL for Pit, respectively. The validated method was successfully applied to the PK study and the data did not reveal any evidence for the potential drug-drug interaction (DDI) between Tel and Pit. This information would provide the evidence for clinical rational use of Tel and Pit, and this study might be applied in therapeutic drug monitoring in patients receiving Tel/Pit combinations or single drug.
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Affiliation(s)
- Xi Chen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Bei Xu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Jian Yang
- School of Applied Chemistry and Biological Technology, Shenzhen Polytechnic, Shenzhen, China
| | - Juan Liu
- West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China
| | - Dailong Fang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Yongjun Gu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Zhifei Jian
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Minghai Tang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Chunmei Fu
- West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China
| | - Zhi Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Chunling Jiang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Xiangrong Song
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China.
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Hemdan A. Development and validation of different methods manipulating zero order and first order spectra for determination of the partially overlapped mixture benazepril and amlodipine: A comparative study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 164:52-60. [PMID: 27078209 DOI: 10.1016/j.saa.2016.03.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 03/05/2016] [Accepted: 03/27/2016] [Indexed: 06/05/2023]
Abstract
Three simple, selective, and accurate spectrophotometric methods have been developed and then validated for the analysis of Benazepril (BENZ) and Amlodipine (AML) in bulk powder and pharmaceutical dosage form. The first method is the absorption factor (AF) for zero order and amplitude factor (P-F) for first order spectrum, where both BENZ and AML can be measured from their resolved zero order spectra at 238nm or from their first order spectra at 253nm. The second method is the constant multiplication coupled with constant subtraction (CM-CS) for zero order and successive derivative subtraction-constant multiplication (SDS-CM) for first order spectrum, where both BENZ and AML can be measured from their resolved zero order spectra at 240nm and 238nm, respectively, or from their first order spectra at 214nm and 253nm for Benazepril and Amlodipine respectively. The third method is the novel constant multiplication coupled with derivative zero crossing (CM-DZC) which is a stability indicating assay method for determination of Benazepril and Amlodipine in presence of the main degradation product of Benazepril which is Benazeprilate (BENZT). The three methods were validated as per the ICH guidelines and the standard curves were found to be linear in the range of 5-60μg/mL for Benazepril and 5-30 for Amlodipine, with well accepted mean correlation coefficient for each analyte. The intra-day and inter-day precision and accuracy results were well within the acceptable limits.
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Affiliation(s)
- A Hemdan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, 6th October, Egypt.
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17
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Maham M, Sharifabadi MK. Simultaneous determination of trace amounts of anti-hypertensive drugs in urine using magnetic mixed hemimicelles solid-phase extraction combined with HPLC-UV. JOURNAL OF ANALYTICAL CHEMISTRY 2016. [DOI: 10.1134/s1061934816030060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Danafar H, Hamidi M. Pharmacokinetics and Bioequivalence Study of Amlodipine and Atorvastatin in Healthy Male Volunteers by LC-MS. PHARMACEUTICAL SCIENCES 2015. [DOI: 10.15171/ps.2015.32] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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19
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Dubey R, Ghosh M. Simultaneous Determination and Pharmacokinetic Study of Losartan, Losartan Carboxylic Acid, Ramipril, Ramiprilat, and Hydrochlorothiazide in Rat Plasma by a Liquid Chromatography/Tandem Mass Spectrometry Method. Sci Pharm 2014; 83:107-24. [PMID: 26839805 PMCID: PMC4729183 DOI: 10.3797/scipharm.1410-15] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 11/30/2014] [Indexed: 12/03/2022] Open
Abstract
The monitoring of the plasmatic concentrations of cardiovascular drugs is crucial for understanding their pharmacokinetics and pharmacodynamics. A simple, sensitive, specific, and high-throughput liquid chromatography/tandem mass spectrometry (LC–MS/MS) method was developed and validated for the simultaneous estimation and pharmacokinetic study of losartan (LOS), losartan carboxylic acid (LCA), ramipril (RAM), ramiprilate (RPT), and hydrochlorothiazide (HCZ) in rat plasma using irbesartan (IBS) and metolazone (MET) as internal standards (ISs). After solid phase extraction (SPE), analytes and ISs were separated on an Agilent Poroshell 120, EC-C18 (50 mm × 4.6 mm, i.d., 2.7 μm) column with a mobile phase consisting of methanol/water (85:15, v/v) containing 5 mmol/L ammonium formate and 0.1% formic acid at a flow rate of 0.4 mL/min. The precursor → product ion transitions for the analytes and ISs were monitored on a triple quadrupole mass spectrometer, operating in the multiple reaction monitoring (MRM) mode and switching the electrospray ionization (ESI) mode during chromatography from positive (to detect LOS, LCA, RAM, RPT, and IBS) to negative (to detect HCZ and MET). The method was validated as per the FDA guidelines and it exhibited sufficient specificity, accuracy, and precision. The method was found to be linear in the range of 3–3000 ng/mL for LOS and LCA, 0.1–200 ng/mL for RAM and RPT, and 1–1500 ng/mL for HCZ. The described method was successfully applied to the preclinical pharmacokinetic study of analytes after oral administration of a mixture of LOS (10 mg/kg), RAM (1 mg/kg), and HCZ (2.5 mg/kg) in rats.
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Affiliation(s)
- Ramkumar Dubey
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, India
| | - Manik Ghosh
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, India
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20
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Rezk MR, Badr KA. Development, optimization and validation of a highly sensitive UPLC–ESI-MS/MS method for simultaneous quantification of amlodipine, benazeprile and benazeprilat in human plasma: Application to a bioequivalence study. J Pharm Biomed Anal 2014; 98:1-8. [DOI: 10.1016/j.jpba.2014.05.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/01/2014] [Accepted: 05/05/2014] [Indexed: 11/24/2022]
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21
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Al Lawati HAJ, Al-Nadabi MM, Varma GB, Suliman FEO, Al-Abri H. A lab-on-a-chip device for analysis of amlodipine in biological fluids using peroxyoxalate chemiluminescence system. LUMINESCENCE 2014; 29:1148-53. [DOI: 10.1002/bio.2675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 02/22/2014] [Accepted: 03/04/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Haider A. J. Al Lawati
- Department of Chemistry, College of Science; Sultan Qaboos University; PO Box 36 Al-Khod 123 Oman
| | | | - Gouri B. Varma
- Department of Chemistry, College of Science; Sultan Qaboos University; PO Box 36 Al-Khod 123 Oman
| | - Fakhr Eldin O. Suliman
- Department of Chemistry, College of Science; Sultan Qaboos University; PO Box 36 Al-Khod 123 Oman
| | - Hasnaa Al-Abri
- Department of Chemistry, College of Science; Sultan Qaboos University; PO Box 36 Al-Khod 123 Oman
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22
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Farouk M, Elaziz OA, Tawakkol SM, Hemdan A, Shehata MA. Comparative study between univariate spectrophotometry and multivariate calibration as analytical tools for quantitation of Benazepril alone and in combination with Amlodipine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 123:473-481. [PMID: 24424258 DOI: 10.1016/j.saa.2013.12.094] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 12/06/2013] [Accepted: 12/15/2013] [Indexed: 06/03/2023]
Abstract
Four simple, accurate, reproducible, and selective methods have been developed and subsequently validated for the determination of Benazepril (BENZ) alone and in combination with Amlodipine (AML) in pharmaceutical dosage form. The first method is pH induced difference spectrophotometry, where BENZ can be measured in presence of AML as it showed maximum absorption at 237nm and 241nm in 0.1N HCl and 0.1N NaOH, respectively, while AML has no wavelength shift in both solvents. The second method is the new Extended Ratio Subtraction Method (EXRSM) coupled to Ratio Subtraction Method (RSM) for determination of both drugs in commercial dosage form. The third and fourth methods are multivariate calibration which include Principal Component Regression (PCR) and Partial Least Squares (PLSs). A detailed validation of the methods was performed following the ICH guidelines and the standard curves were found to be linear in the range of 2-30μg/mL for BENZ in difference and extended ratio subtraction spectrophotometric method, and 5-30 for AML in EXRSM method, with well accepted mean correlation coefficient for each analyte. The intra-day and inter-day precision and accuracy results were well within the acceptable limits.
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Affiliation(s)
- M Farouk
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Omar Abd Elaziz
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Shereen M Tawakkol
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - A Hemdan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, 6th October, Egypt.
| | - Mostafa A Shehata
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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23
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Al-Kindy SMZ, Al-Snedi A, Suliman FEO, Al-Lawati HAJ. Determination of amlodipine using terbium-sensitized luminescence in the presence of europium(III) as a co-luminescence reagent. LUMINESCENCE 2013; 29:657-62. [DOI: 10.1002/bio.2602] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 09/30/2013] [Accepted: 10/03/2013] [Indexed: 11/10/2022]
Affiliation(s)
| | - Abdalla Al-Snedi
- Sultan Qaboos University; College of Science, Box 36, Department of Chemistry; Al-Khod 123 Sultanate of Oman
| | - Fakhr Eldin O. Suliman
- Sultan Qaboos University; College of Science, Box 36, Department of Chemistry; Al-Khod 123 Sultanate of Oman
| | - Haidar A. J. Al-Lawati
- Sultan Qaboos University; College of Science, Box 36, Department of Chemistry; Al-Khod 123 Sultanate of Oman
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24
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Elshanawane AA, Abdelaziz LM, Kamal MM, Hafez HM. QUANTITATIVE DETERMINATION OF TELMISARTAN, RAMIPRIL, AMLODIPINE BESYLATE, AND ATORVASTATIN CALCIUM BY HPLC. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.738622] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Abdullah A. Elshanawane
- a Medicinal Chemistry Department , Faculty of Pharmacy, Zagazig University , Zagazig , Egypt
| | - Lobna M. Abdelaziz
- a Medicinal Chemistry Department , Faculty of Pharmacy, Zagazig University , Zagazig , Egypt
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25
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Ozdemir FA, Akyuz A. Simultaneous Determination of Amlodipine and Aliskren in Tablets by High-Performance Liquid Chromatography. J Chromatogr Sci 2013; 52:685-90. [DOI: 10.1093/chromsci/bmt099] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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26
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Zhou Y, Li J, He X, Jia M, Liu M, Li H, Xiong Z, Fan Y, Li W. Development and validation of a liquid chromatography-tandem mass spectrometry method for simultaneous determination of amlodipine, atorvastatin and its metabolites ortho-hydroxy atorvastatin and para-hydroxy atorvastatin in human plasma and its application in a bioequivalence study. J Pharm Biomed Anal 2013; 83:101-7. [PMID: 23711572 DOI: 10.1016/j.jpba.2013.04.021] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 03/09/2013] [Accepted: 04/11/2013] [Indexed: 11/26/2022]
Abstract
A sensitive, simple and rapid high-performance liquid chromatography coupled with positive ion electrospray ionization-tandem mass spectrometry (HPLC-ESI-MS/MS) method was developed for the simultaneous determination of amlodipine, atorvastatin and its metabolites ortho-hydroxy atorvastatin and para-hydroxy atorvastatin in human plasma. The analytes were extracted from human plasma through liquid-liquid extraction method. A mixture of methyl tert-butyl ether and ethyl acetate (50:50, v/v) was used as the extractant. The chromatographic separation was achieved on a CAPCELLPAK CR 1:4 (5 μm, 150 mm × 2.0 mm i.d.) column within 6.0 min with the mobile phase consisted of acetonitrile and ammonium acetate buffer (20mM) containing 0.3% formic acid (50:50, v/v). Data acquisition was carried out in multiple reaction monitoring (MRM) mode. The method was validated and was successfully applied to the bioequivalence study of combination tablets containing AM and AT with coadministered individual drugs in 50 healthy Chinese male volunteers.
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Affiliation(s)
- Ying Zhou
- Institute of Clinical Pharmacy, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430022, PR China
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27
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Lawson G, Cocks E, Tanna S. Bisoprolol, ramipril and simvastatin determination in dried blood spot samples using LC-HRMS for assessing medication adherence. J Pharm Biomed Anal 2013; 81-82:99-107. [PMID: 23648556 DOI: 10.1016/j.jpba.2013.04.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 04/04/2013] [Accepted: 04/05/2013] [Indexed: 02/05/2023]
Abstract
The use of dried blood spot (DBS) collection cards was investigated for the quantification of three therapeutic drugs used in cardiovascular therapy for assessing medication adherence. A liquid chromatography-high resolution mass spectrometry (LC-HRMS) method was developed and validated for the determination of bisoprolol, ramipril and simvastatin. Whole blood spiked with target analytes was used to produce 30 μl blood spots on specimen collection cards. An 8mm disc was cut from the dried blood spot and extracted using methanol: water (70:30, v/v) containing the internal standard, atenolol. Extracts were vortexed, sonicated and then centrifuged. Gradient chromatographic elution was achieved using a Zorbax Eclipse C18 HD 100 mm × 2.1 mm, 1.8 μm pore size column and a mobile phase flow rate of 0.6 ml/min and the column oven temperature at 40 °C with a run time of 3 min. MS detection was carried out in electrospray positive ion mode for the three target drugs and for the IS. Drug recoveries from spiked blood spots were ≥ 92% for bisoprolol and ramipril and ~43% for simvastatin and the drugs were stable in DBS for at least 12 weeks. Validation of the LC-HRMS method showed good linearity and the accuracy (relative error) and precision (coefficient of variation) values were within the pre-defined limits of ≤ 15% at all concentrations. Matrix effects and the effects of different volumes of blood applied to the collection card were investigated. The LC-HRMS method successfully identified control volunteers who were known to be either adherent or non-adherent. There were no false positives from volunteers taking other cardiovascular drugs or from volunteers receiving no medication.
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Affiliation(s)
- Graham Lawson
- Leicester School of Pharmacy, Faculty of Health and Life Sciences, De Montfort University, Leicester LE1 9BH, UK.
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28
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Simultaneous estimation of amlodipine and atenolol in human plasma: a sensitive LC–MS/MS method validation and its application to a clinical PK study. Bioanalysis 2013; 5:827-37. [DOI: 10.4155/bio.13.39] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: A highly sensitive, specific and rapid LC–ESI-MS/MS method has been developed and validated for simultaneous quantification of amlodipine (AMD) and atenolol (ATL) in human plasma (200 µl) using AMD-d4 and ATL-d7, respectively, as an internal standard (IS) as per the regulatory guidelines. Results: The SPE method was used to extract the analytes and IS from human plasma. The chromatographic resolution of AMD, ATL and corresponding IS was achieved using an isocratic flow on a C18 column. The total chromatographic run time was 3 min. A linear response function was established for the range of concentrations 50–8000 pg/ml and 10–800 ng/ml for AMD and ATL, respectively, in human plasma. Conclusion: The intra- and inter-day accuracy and precision values for AMD and ATL met the acceptance as per regulatory guidelines. The validated assay was applied to a fixed-dose combination of AMD and ATL (Adopin-AT®) PK study in humans.
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29
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Rakić T, Vemić S, Jančić-Stojanović B, Medenica M. Multi-Level Robustness Evaluation Approach: From Robustness Criterion to Adapted Algorithm of Dong. Chromatographia 2013. [DOI: 10.1007/s10337-012-2317-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Yacoub M, awwad AA, Alawi M, Arafat T. Simultaneous determination of amlodipine and atorvastatin with its metabolites; ortho and para hydroxy atorvastatin; in human plasma by LC–MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 917-918:36-47. [DOI: 10.1016/j.jchromb.2013.01.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 12/30/2012] [Accepted: 01/01/2013] [Indexed: 11/16/2022]
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31
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Shentu J, Fu L, Zhou H, Hu XJ, Liu J, Chen J, Wu G. Determination of amlodipine in human plasma using automated online solid-phase extraction HPLC–tandem mass spectrometry: Application to a bioequivalence study of Chinese volunteers. J Pharm Biomed Anal 2012; 70:614-8. [DOI: 10.1016/j.jpba.2012.06.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 05/31/2012] [Accepted: 06/08/2012] [Indexed: 10/28/2022]
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32
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Polagani SR, Pilli NR, Gajula R, Gandu V. Simultaneous determination of atorvastatin, metformin and glimepiride in human plasma by LC-MS/MS and its application to a human pharmacokinetic study. J Pharm Anal 2012; 3:9-19. [PMID: 29403791 PMCID: PMC5760920 DOI: 10.1016/j.jpha.2012.09.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Accepted: 09/26/2012] [Indexed: 11/26/2022] Open
Abstract
A simple, rapid and sensitive liquid chromatography-tandem mass spectrometric (LC–MS/MS) assay method has been developed and fully validated for the simultaneous quantification of atorvastatin, metformin and glimepiride in human plasma. Carbamazepine was used as internal standard (IS). The analytes were extracted from 200 μL aliquots of human plasma via protein precipitation using acetonitrile. The reconstituted samples were chromatographed on a Alltima HP C18 column by using a 60:40 (v/v) mixture of acetonitrile and 10 mM ammonium acetate (pH 3.0) as the mobile phase at a flow rate of 1.1 mL/min. The calibration curves obtained were linear (r2≥0.99) over the concentration range of 0.50–150.03 ng/mL for atorvastatin, 12.14–1207.50 ng/mL for metformin and 4.98–494.29 ng/mL for glimepiride. The API-4000 LC–MS/MS in multiple reaction monitoring (MRM) mode was used for detection. The results of the intra- and inter-day precision and accuracy studies were well within the acceptable limits. All the analytes were found to be stable in a battery of stability studies. The method is precise and sensitive enough for its intended purpose. A run time of 2.5 min for each sample made it possible to analyze more than 300 plasma samples per day. The developed assay method was successfully applied to a pharmacokinetic study in human male volunteers.
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Affiliation(s)
- Srinivasa Rao Polagani
- Research Studies, Rayalaseema University, Kurnool 518002, India.,Wellquest Clinical Research, Ramanthapur, Hyderabad 500013, India
| | | | | | - Venkateswarlu Gandu
- Department of Chemistry, Nizam College, Osmania University, Hyderabad 500001, India
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Gajula R, Pilli NR, Ravi VB, Maddela R, Inamadugu JK, Polagani SR, Busa S. Simultaneous Determination of Atorvastatin and Aspirin in Human Plasma by LC-MS/MS: Its Pharmacokinetic Application. Sci Pharm 2012; 80:923-40. [PMID: 23264940 PMCID: PMC3528047 DOI: 10.3797/scipharm.1206-12] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2012] [Accepted: 08/06/2012] [Indexed: 12/24/2022] Open
Abstract
A simple, rapid, and sensitive liquid chromatography tandem mass spectro-metric (LC-MS/MS) assay method has been developed and fully validated for the simultaneous quantification of atorvastatin and aspirin in human plasma using a polarity switch. Proguanil and furosemide were used as the internal standards for the quantification of atorvastatin and aspirin, respectively. The analytes were extracted from human plasma by the liquid-liquid extraction technique using methyl tert-butyl ether. The reconstituted samples were chromatographed on a Zorbax XDB Phenyl column by using a mixture of 0.2% acetic acid buffer, methanol, and acetonitrile (20:16:64, v/v) as the mobile phase at a flow rate of 0.8 mL/min. Prior to detection, atorvastatin and aspirin were ionized using an ESI source in the multiple reaction monitoring (MRM) mode. The ions were monitored at the positive m/z 559.2→440.0 transition for atorvastatin and the negative m/z 179.0→136.6 transition for aspirin. The calibration curve obtained was linear (r(2) ≥ 0.99) over the concentration range of 0.20-151 ng/mL for atorvastatin and 15.0-3000 ng/mL for aspirin. The method validation was performed as per FDA guidelines and the results met the acceptance criteria. A run time of 3.0 min for each sample made it possible to analyze more than 300 human plasma samples per day. The proposed method was found to be applicable to clinical studies.
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Affiliation(s)
- Ramakrishna Gajula
- Wellquest Clinical Research, Mirrakamshetty Mall, Ramanthapur, Hyderabad 500013, India
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Ravi VB, Inamadugu JK, Pilli NR, Sreenivasulu V, Ponneri V. Simultaneous determination of telmisartan and amlodipine in human plasma by LC-MS/MS and its application in a human pharmacokinetic study. J Pharm Anal 2012; 2:319-326. [PMID: 29403761 PMCID: PMC5760765 DOI: 10.1016/j.jpha.2012.03.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Accepted: 03/22/2012] [Indexed: 12/20/2022] Open
Abstract
A rapid and sensitive liquid chromatography–tandem mass spectrometric (LC–MS/MS) assay method has been developed and fully validated for the simultaneous quantification of telmisartan and amlodipine in human plasma. Carbamazepine was used as an internal standard. Analytes and the internal standard were extracted from human plasma by solid-phase extraction technique using Waters Oasis® HLB 1 cm3 (30 mg) extraction cartridge. The reconstituted samples were chromatographed on a Hypurity advance C18 column (50 mm×4.6 mm, 5 μm) using a mixture of acetonitrile–5 mM ammonium acetate buffer (pH-4.0) (50:50, v/v) as the mobile phase at a flow rate of 0.8 mL/min. The calibration curve obtained was linear (r≥0.99) over the concentration range of 2.01–400.06 ng/mL for telmisartan and 0.05–10.01 ng/mL for amlodipine. Method validation was performed as per FDA guidelines and the results met the acceptance criteria. A run time of 2.5 min for each sample made it possible to analyze more than 400 human plasma samples per day. The proposed method was found to be applicable to clinical studies.
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Affiliation(s)
- Vasu Babu Ravi
- Research Studies, Rayalaseema University, Kurnool 518002, India.,Wellquest Clinical Research Laboratories, Ramanthapur, Hyderabad 500013, India
| | | | - Nageswara Rao Pilli
- Wellquest Clinical Research Laboratories, Ramanthapur, Hyderabad 500013, India
| | - Vudagandla Sreenivasulu
- BioPolymer and Thermophysical Lab, Department of Chemistry, Sri Venkateswara University, Tirupati 517502, India
| | - Venkateswarlu Ponneri
- Analytical and Environmental Chemistry Division, Department of Chemistry, Sri Venkateswara University, Tirupati 517502, India
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35
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Ravi VB, Mullangi R, Inamadugu JK, Pilli NR, Gajula R, Ponneri V. Simultaneous determination of atorvastatin and niacin in human plasma by LC-MS/MS and its application to a human pharmacokinetic study. Biomed Chromatogr 2012; 26:1436-43. [PMID: 22415894 DOI: 10.1002/bmc.2715] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2011] [Accepted: 01/05/2012] [Indexed: 11/08/2022]
Abstract
A rapid, simple, sensitive and selective LC-MS/MS method has been developed and validated for quantification of the atorvastatin (AT) and niacin (NA) in 250 μL human plasma. The analytical procedure involves a liquid-liquid extraction method using nevirapine as an internal standard (IS). The chromatographic separation was achieved on a Hypurity Advance (4.6 × 50 mm, 5 µm) column using a mobile phase consisting of 0.1% formic acid buffer-acetonitrile (20:80, v/v) at flow rate of 0.8 mL/min. The API-4000 LC-MS/MS was operated in the multiple-reaction monitoring mode using electrospray ionization. The total run time of analysis was 3 min and elution of AT, NA and IS occurred at 1.06, 1.84 and 0.92 min, respectively. A detailed validation of the method was performed as per the US Food and Drug Administration guidelines and the standard curves found to be linear in the range of 0.10-30.0 ng/mL for AT and 20.2-6026 ng/mL for NA, with a coefficient of correlation of ≥ 0.99 for both the compounds. AT and NA were found to be stable in a battery of stability studies, viz. bench-top, autosampler, re-injection, wet-extract and repeated freeze-thaw cycles. The developed assay method was successfully applied to a pharmacokinetic study in humans.
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Affiliation(s)
- Vasu Babu Ravi
- Research Studies, Rayalaseema University, Kurnool-518 002, India
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36
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Hotha KK, Yarramu NR, Kandibedala T, Dasari VB, Vobalaboina V. Simultaneous Determination of Atorvastatin and Glimepiride by LC-MS/MS in Human Plasma and Its Application to a Pharmacokinetic Study. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/ajac.2012.38074] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Yu Q, Hu ZY, Zhu FY, Zhu JH, Wan LL, Li Y, Guo C. HPLC–MS–MS for the Simultaneous Determination of Atorvastatin and Amlodipine in Plasma of Hypertensive Patients. Chromatographia 2011. [DOI: 10.1007/s10337-010-1883-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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