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Tachet J, Versace F, Mercier T, Buclin T, Decosterd LA, Choong E, Girardin FR. Development and validation of a multiplex HPLC-MS/MS assay for the monitoring of JAK inhibitors in patient plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1230:123917. [PMID: 37956468 DOI: 10.1016/j.jchromb.2023.123917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023]
Abstract
Janus kinase inhibitors (JAKi) are oral small molecules used in the treatment of a broad spectrum of autoimmune and myeloproliferative diseases. JAKi exhibit significant intra- and inter-individual pharmacokinetic variabilities, due to fluctuations in compliance with oral treatments and their metabolism essentially driven by cytochrome P450 enzymes. Intrinsically, JAKi have dose-response relationship and narrow therapeutic index: therapeutic drug monitoring (TDM) is expected to optimize and adapt their dosage regimen in order to resolve problems of efficacy and tolerance linked to dose and safety. A sensitive analytical method using multiplex high-performance liquid-chromatography coupled to tandem mass spectrometry (HPLC-MS/MS) was developed and validated for the simultaneous quantification in plasma of the 6 major currently used JAKi, namely abrocitinib, baricitinib, fedratinib, ruxolitinib, tofacitinib, and upadacitinib. Plasma samples are subjected to protein precipitation with MeOH, using stable isotopically labelled internal standards. The separation of JAKi in supernatants diluted 1:1 with ultrapure H2O was performed using a C18 column Xselect HSS T3 2.5 µm, 2.1x150 mm using a mobile phase composed of formic acid (FA) 0.2% and acetonitrile (+FA 0.1%) in gradient mode. The analytical run time for the multiplex assay was 7 min. JAKi drugs were monitored by electrospray ionization in the positive mode followed by triple-stage quadrupole MS/MS analysis. The method was validated according to SFSTP and ICH guidelines over the clinically relevant concentration ranges (0.5-200 ng/mL for abrocitinib, baricitinib and upadacitinib; 1-400 ng/mL for tofacitinib; 0.5-400 ng/mL for ruxolitinib, and 10-800 ng/mL for fedratinib). This multiplex HPLC-MS/MS assay achieved good performances in term of trueness (91.1-113.5%), repeatability (3.0-9.9%), and intermediate precision (4.5-11.3%). We developed and validated a highly sensitive method for the multiplex quantification of the JAKi abrocitinib, baricitinib, fedratinib, ruxolitinib, tofacitinib, and upadacitinib in human plasma. The method will be applied for prospective clinical pharmacokinetic studies to determine whether TDM programs for JAKi based on residual drug concentrations can be recommended using disease-specific therapeutic ranges.
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Affiliation(s)
- Jérémie Tachet
- Service and Laboratory of Clinical Pharmacology, Department of Laboratory Medicine and Pathology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - François Versace
- Service and Laboratory of Clinical Pharmacology, Department of Laboratory Medicine and Pathology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Thomas Mercier
- Service and Laboratory of Clinical Pharmacology, Department of Laboratory Medicine and Pathology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Thierry Buclin
- Service and Laboratory of Clinical Pharmacology, Department of Laboratory Medicine and Pathology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Laurent A Decosterd
- Service and Laboratory of Clinical Pharmacology, Department of Laboratory Medicine and Pathology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Eva Choong
- Service and Laboratory of Clinical Pharmacology, Department of Laboratory Medicine and Pathology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - François R Girardin
- Service and Laboratory of Clinical Pharmacology, Department of Laboratory Medicine and Pathology, University Hospital and University of Lausanne, Lausanne, Switzerland.
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2
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Visconti G, de Figueiredo M, Salamin O, Boccard J, Vuilleumier N, Nicoli R, Kuuranne T, Rudaz S. Straightforward quantification of endogenous steroids with liquid chromatography-tandem mass spectrometry: Comparing calibration approaches. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1226:123778. [PMID: 37393882 DOI: 10.1016/j.jchromb.2023.123778] [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: 02/14/2023] [Revised: 05/23/2023] [Accepted: 05/31/2023] [Indexed: 07/04/2023]
Abstract
Different calibration strategies are used in liquid chromatography hyphenated to mass spectrometry (LC-MS) bioanalysis. Currently, the surrogate matrix and surrogate analyte represent the most widely used approaches to compensate for the lack of analyte-free matrices in endogenous compounds quantification. In this context, there is a growing interest in rationalizing and simplifying quantitative analysis using a one-point concentration level of stable isotope-labeled (SIL) standards as surrogate calibrants. Accordingly, an internal calibration (IC) can be applied when the instrument response is translated into analyte concentration via the analyte-to-SIL ratio performed directly in the study sample. Since SILs are generally used as internal standards to normalize variability between authentic study sample matrix and surrogate matrix used for the calibration, IC can be calculated even if the calibration protocol was achieved for an external calibration (EC). In this study, a complete dataset of a published and fully validated method to quantify an extended steroid profile in serum was recomputed by adapting the role of SIL internal standards as surrogate calibrants. Using the validation samples, the quantitative performances for IC were comparable with the original method, showing acceptable trueness (79%-115%) and precision (0.8%-11.8%) for the 21 detected steroids. The IC methodology was then applied to human serum samples (n = 51) from healthy women and women diagnosed with mild hyperandrogenism, showing high agreement (R2 > 0.98) with the concentrations obtained using the conventional quantification based on EC. For IC, Passing-Bablok regression showed proportional biases between -15.0% and 11.3% for all quantified steroids, with an average difference of -5.8% compared to EC. These results highlight the reliability and the advantages of implementing IC in clinical laboratories routine to simplify quantification in LC-MS bioanalysis, especially when a large panel of analytes is monitored.
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Affiliation(s)
- Gioele Visconti
- School of Pharmaceutical Sciences, University of Geneva, CMU - Rue Michel-Servet 1, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel-Servet 1, Geneva, Switzerland
| | - Miguel de Figueiredo
- School of Pharmaceutical Sciences, University of Geneva, CMU - Rue Michel-Servet 1, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel-Servet 1, Geneva, Switzerland
| | - Olivier Salamin
- Center of Research and Expertise in Anti-Doping Sciences - REDs, Institute of Sport Sciences, University of Lausanne, Lausanne, Switzerland; Swiss Laboratory for Doping Analyses, University Center of Legal Medicine, Lausanne and Geneva, Lausanne University Hospital and University of Lausanne, Switzerland
| | - Julien Boccard
- School of Pharmaceutical Sciences, University of Geneva, CMU - Rue Michel-Servet 1, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel-Servet 1, Geneva, Switzerland; Swiss Centre for Applied Human Toxicology (SCAHT), Basel, Switzerland
| | - Nicolas Vuilleumier
- Department of Genetic and Laboratory Medicine, Geneva University Hospitals (HUG), Geneva, Switzerland
| | - Raul Nicoli
- Swiss Laboratory for Doping Analyses, University Center of Legal Medicine, Lausanne and Geneva, Lausanne University Hospital and University of Lausanne, Switzerland
| | - Tiia Kuuranne
- Swiss Laboratory for Doping Analyses, University Center of Legal Medicine, Lausanne and Geneva, Lausanne University Hospital and University of Lausanne, Switzerland
| | - Serge Rudaz
- School of Pharmaceutical Sciences, University of Geneva, CMU - Rue Michel-Servet 1, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel-Servet 1, Geneva, Switzerland; Swiss Centre for Applied Human Toxicology (SCAHT), Basel, Switzerland.
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3
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Visconti G, Boccard J, Feinberg M, Rudaz S. From fundamentals in calibration to modern methodologies: A tutorial for small molecules quantification in liquid chromatography-mass spectrometry bioanalysis. Anal Chim Acta 2023; 1240:340711. [PMID: 36641149 DOI: 10.1016/j.aca.2022.340711] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/12/2022]
Abstract
Over the last two decades, liquid chromatography coupled to mass-spectrometry (LC‒MS) has become the gold standard to perform qualitative and quantitative analyses of small molecules. When quantitative analysis is developed, an analyst usually refers to international guidelines for analytical method validation. In this context, the design of calibration curves plays a key role in providing accurate results. During recent years and along with instrumental advances, strategies to build calibration curves have dramatically evolved, introducing innovative approaches to improve quantitative precision and throughput. For example, when a labeled standard is available to be spiked directly into the study sample, the concentration of the unlabeled analog can be easily determined using the isotopic pattern deconvolution or the internal calibration approach, eliminating the need for multipoint calibration curves. This tutorial aims to synthetize the advances in LC‒MS quantitative analysis for small molecules in complex matrices, going from fundamental aspects in calibration to modern methodologies and applications. Different work schemes for calibration depending on the sample characteristics (analyte and matrix nature) are distinguished and discussed. Finally, this tutorial outlines the importance of having international guidelines for analytical method validation that agree with the advances in calibration strategies and analytical instrumentation.
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Affiliation(s)
- Gioele Visconti
- School of Pharmaceutical Sciences, University of Geneva, CMU - Rue Michel-Servet 1, 1211, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel-Servet 1, 1211, Geneva, Switzerland
| | - Julien Boccard
- School of Pharmaceutical Sciences, University of Geneva, CMU - Rue Michel-Servet 1, 1211, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel-Servet 1, 1211, Geneva, Switzerland
| | | | - Serge Rudaz
- School of Pharmaceutical Sciences, University of Geneva, CMU - Rue Michel-Servet 1, 1211, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel-Servet 1, 1211, Geneva, Switzerland.
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4
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Thoueille P, Seybold U, Decosterd LA, Desfontaine V. Development and validation of a liquid chromatography coupled to tandem mass spectrometry method for the monitoring of temsavir plasma concentrations in people living with HIV. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1214:123575. [PMID: 36542988 DOI: 10.1016/j.jchromb.2022.123575] [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: 11/11/2022] [Revised: 12/08/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022]
Abstract
A majority of people living with HIV (PLWH) now have access to HIV treatment with high antiviral potency and favorable tolerability profile. However, in some treatment experienced PLWH viral strains resistant to major current classes of antiretrovirals have emerged, usually due to periods with continued virus replication in the presence of failing drug regimens and thus selection pressure. In such context, new treatment options are therefore needed. Fostemsavir (RUKOBIA®) is the prodrug of temsavir, a first-in-class oral attachment inhibitor approved for the treatment of heavily treatment-experienced adults with multidrug-resistant HIV-1 infection. In this case RUKOBIA® is part of a complex regimen of antiretroviral drugs, often in addition to other drugs for chronic co-morbidities (e.g., heart disease, diabetes mellitus, hepatic and renal impairment, etc). In such a multi-drug regimen context, therapeutic drug monitoring (TDM) of temsavir can be necessary to exclude or adjust for relevant drug-drug interactions. A highly selective assay by liquid chromatography method coupled to tandem mass spectrometry (LC-MS/MS) was therefore developed for the quantification of temsavir in human plasma. A convenient sample preparation using protein precipitation with acetonitrile followed by supernatant dilution was carried out. Temsavir and fostemsavir were separated in less than 2 min using a multi-step UPLC gradient, thus ensuring adequate quantification of temsavir. The assay for the quantification of temsavir was extensively validated over the large range of clinically relevant concentrations from 1 to 10,000 ng/mL, in accordance with international bioanalytical method guidelines. The method achieves excellent performance in terms of trueness (99.7 - 105.3%), repeatability and intermediate precision (both from 1.6% to 5.8%). This LC-MS/MS method is now part of the routine analyses of the Laboratory of the Service of Clinical Pharmacology of Lausanne (CHUV), Switzerland, as an integrated part of our general TDM Service for antiretrovirals.
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Affiliation(s)
- Paul Thoueille
- Service and Laboratory of Clinical Pharmacology, Department of Laboratory Medicine and Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
| | - Ulrich Seybold
- Med. Klinik und Poliklinik IV, LMU Klinikum, Ludwig-Maximilians-University, Munich, Germany
| | - Laurent A Decosterd
- Service and Laboratory of Clinical Pharmacology, Department of Laboratory Medicine and Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Vincent Desfontaine
- Service and Laboratory of Clinical Pharmacology, Department of Laboratory Medicine and Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
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Pratibha, Rajput JK. Synergistically Enhanced Solar‐light Driven Degradation of Hazardous Food Colorants by Ultrasonically Derived MgFe
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/S‐doped g‐C
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Nanocomposite: A Z‐Scheme System Based Heterojunction Approach. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pratibha
- Department of Chemistry, Dr. B. R Ambedkar National Institute of Technology Jalandhar Punjab India
| | - Jaspreet Kaur Rajput
- Department of Chemistry, Dr. B. R Ambedkar National Institute of Technology Jalandhar Punjab India
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Fan L, Jeanne Huang J, Lo CY, Zhou B, Fu X. Simplified validation of the ELISA kit determination of Microcystins in surface water. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 85:900-913. [PMID: 35166709 DOI: 10.2166/wst.2021.640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The enzyme-linked immunosorbent assay (ELISA), as a universal method for the determination of Microcystins, is of great significance for the rapid detection of Microcystins pollution. This study aimed to propose a simplified validation method for Microcystins ELISA kit by summarizing related documents and guidelines. After summarizing and clarifying from 20 validation parameters, 11 parameters were selected to simplify the validation of Microcystins ELISA kit. In addition, the acceptable range and validation details of each parameter were analyzed. The results indicated that the coefficient of determination of the Microcystin-LR standard curve was higher than 0.99. The concentration of quality control samples was within control limits. The accuracy of spiked and proficient samples was within 70%-130%. The variability of intra-assay, inter-assay, and reproducibility was less than 11, 15 and 21%, respectively. The LOD and LLOQ were 0.002 μg/L and 0.05 μg/L, respectively. When the concentration of Microcystins exceeded 5 μg/L, it was recommended to dilute the samples to the working range before detection. The specificity was estimated with seven Microcystin analogues and three amino acids, indicating that the cross-reactivity was less than 30%. These results revealed that the ELISA kit was satisfactory for detecting Microcystins in water.
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Affiliation(s)
- Liang Fan
- College of Environmental Science and Engineering/Sino-Canada R&D Centre on Water and Environmental Safety, Nankai University, Tianjin 300071, China E-mail:
| | - Jinhui Jeanne Huang
- College of Environmental Science and Engineering/Sino-Canada R&D Centre on Water and Environmental Safety, Nankai University, Tianjin 300071, China E-mail:
| | - Ching Y Lo
- Environmental Applied Science and Management, Ryerson University, 350 Victoria Street, Toronto, Ontario, M5B 2K3, Canada
| | - Bin Zhou
- Tianjin Academy of Ecological and Environmental Sciences, Tianjin 300191, China
| | - Xujin Fu
- Tianjin huanke Environmental Consulting Co., Ltd., Tianjin 300191, China
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Investigation of hydrophilic interaction liquid chromatography coupled with charged aerosol detector for the analysis of tromethamine. Talanta 2022; 238:123050. [PMID: 34801907 DOI: 10.1016/j.talanta.2021.123050] [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: 08/09/2021] [Revised: 11/04/2021] [Accepted: 11/06/2021] [Indexed: 11/22/2022]
Abstract
Tromethamine (TMM), often encountered in a final drug product, exhibits interesting chemical properties as a counter ion, buffer, or active ingredient. European and US pharmacopeias propose titration against hydrogen chloride for TMM assays. However, this method can be a hindrance when using drugs containing low concentrations of TMM in complex buffered formulations. Due to the lack of chromophores and the high hydrophilicity of TMM, we performed a simple and reliable hydrophilic interaction chromatography coupled with a charged aerosol detector (HILIC-CAD) separation approach as an alternative for TMM analysis. An amide stationary phase and a mobile phase consisting of a binary mixture of acetonitrile and 10 mM ammonium formate, pH 3 (80/20, V/V) were used. As the CAD response deeply depends on parameters such as stationary phases and pH buffer, we investigated their impact and explored the optimal signal conditions. Including TMM analogs such as tris(hydroxymethyl) nitromethane and 2-amino-2-ethyl-1,3-propanediol allowed us to select these parameters appropriately. The effects of the evaporation temperature, flow rate, and power function value (PFV) on the CAD signal response were also studied and optimized. The method was validated according to the ICH Q2 R1 guidelines. A linear response (mean R2 > 0.997) covering the range for low TMM concentrations (170-520 μg/mL) was achieved. Satisfactory intra-day and inter-day precisions were obtained with RSDs lower than 1.9% and 2.8%, respectively. The trueness ranged from 99.6% to 101.2%, and the LOD was found to be 1.1 μg/mL. The HILIC-CAD method has been applied to a sterile TMM solution for injection.
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Ferré S, González-Ruiz V, Zangari J, Girel S, Martinou JC, Sardella R, Rudaz S. Separation and determination of cysteine enantiomers in plasma after derivatization with 4-fluoro-7-nitrobenzofurazan. J Pharm Biomed Anal 2021; 209:114539. [PMID: 34954468 DOI: 10.1016/j.jpba.2021.114539] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/22/2022]
Abstract
The importance of D-amino acids in mammals associated with enantio-dependent biological functions has been increasingly highlighted. In addition to naturally occurring, D-amino acid supplementation could have a positive biological impact, including cytoprotective implications. In this context, supplementation with D-cysteine has revealed beneficial effects. Quantification of cysteine enantiomers in rodent plasma has been achieved by using 4-fluoro-7-nitrobenzofurazan derivatization of the target analytes. Cystine, the main form of cysteine in the plasma, was initially reduced to cysteine using DL-dithiothreitol. Baseline enantioseparation was then achieved in less than 3 min using a (R,R)-Whelk-O 1 stationary phase and isocratic elution using CH3OH-H2O 90:10 (v/v) with 15 mM ammonium formate (apparent pH 6.0) at 0.5 mL/min. The derivatives were then detected using negative ESI-MS in SRM mode. An external calibration was employed for D-cysteine, while L-cysteine quantification, as an endogenous analyte, was addressed using a background subtraction strategy. The method was validated. Response functions were obtained from 0 to 300 µM and from 0 to 125 µM for D-cysteine and L-cysteine, respectively. The trueness ranged from 96% to 105% for both enantiomers with repeatability and intermediate precision lower than 8% and 15% for the D-form and the endogenous L-form, respectively. The method was successfully applied for determining D- and L-cysteine in mouse plasma after D-cysteine administration.
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Affiliation(s)
- Sabrina Ferré
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland
| | - Víctor González-Ruiz
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland; Swiss Centre for Applied Human Toxicology (SCAHT), Switzerland
| | - Joséphine Zangari
- Department of Cell Biology, University of Geneva, Genève 4, Switzerland
| | - Sergey Girel
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland
| | | | - Roccaldo Sardella
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Serge Rudaz
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland; Swiss Centre for Applied Human Toxicology (SCAHT), Switzerland.
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A liquid chromatography coupled to tandem mass spectrometry method for the quantification of spiramycin and its active metabolite neospiramycin in milk of major and minor species: Validation using the accuracy profile. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1187:123013. [PMID: 34808577 DOI: 10.1016/j.jchromb.2021.123013] [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: 04/14/2021] [Revised: 10/21/2021] [Accepted: 10/28/2021] [Indexed: 11/20/2022]
Abstract
A liquid chromatography with tandem mass spectrometry (LC-MS/MS) method was developed for the simultaneous quantification of residues of spiramycin, a macrolide antibiotic, and its active metabolite neospiramycin in cow's milk as well as in minor species 'milk, goat and ewe. Spiramycin-d3 was used as internal standard for quantification of both analytes. This analytical method was validated using a global accuracy profile as a graphical decision tool built according to the trueness and the precision of the method. A unique and optimal linear model with logarithm transformation (with a determination coefficient of 0.9991) allowed the measurement of both analytes in the milks of the three animal species, in a wide range from 0.2 to 10 times the Maximal Residue Limit (MRL) (40-2000 µg.kg-1). The limits of detection and quantification were 13 µg.kg-1 and 40 µg.kg-1, respectively. The accuracy profile was established to get 80% of future measurements in routine assays that will fall within the acceptance limits. Trueness of the method, expressed as relative bias, was comprised between -1.6% and 5.7% over the whole range of concentrations. The mean relative standard deviation for repeatability and intermediate precision were comprised between 1.1% and 2.7%; 2.5 and 4.2%, respectively, in all levels of concentration for the three milks. Moreover, a two-order polynomial function was used to model the relative expanded uncertainty with a determination coefficient of 0.834. This function aimed to determine the uncertainty of the future quantifications within the validated dosing range. Overall, the global accuracy profile highlighted the reliability of the method for the routine assays of spiramycin and neospiramycin even in milk from minor species (goat, ewe) by using the most accessible milk (often from cow), while guaranteeing a very high proportion of samples within the fixed acceptance limits. The applicability of this method was tested during a depletion study of spiramycin and neospiramycin in the milk of cow, goat and ewe. The developed analytical method will be useful to assess the distribution profile of the antibiotic and its metabolite in milk of minor species where few studies are available.
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Dréano E, Laurentie M, Hurtaud-Pessel D, Mompelat S. Multi-class analysis of 30 antimicrobial residues in poultry feathers by liquid chromatography tandem mass spectrometry. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:1701-1716. [PMID: 34254877 DOI: 10.1080/19440049.2021.1942561] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Poultry feathers are nowadays partially re-introduced into the animal food chain and the environment. They are valorised by their transformation into feather meal in order to be used as fertilisers in agriculture but also in animal feed (in particular, pet food and fish feed). However, unlike food producing animals for humans, feathers from poultry animals are not subject to a ban or regulatory limits on the presence of antibiotic residue after veterinary treatment. Feathers could therefore be a potential reservoir of antibiotic residues, unintentionally exposing the environment and animals through food, which might contribute to the emergence of antibiotic resistance. To this end, a multi-class liquid chromatographic method coupled with tandem mass spectrometry (LC-MS/MS) was developed for the detection and determination of residues of 30 antibiotics from eight groups of antibacterial (quinolones, lincosamides, macrolides, penicillins, phenicols, tetracyclines, sulphonamides and diaminopyrimidines) in feathers. The extraction of the analytes from the feathers was carried out by the salting out technique. The separation of the analytes employed a Kinetex C18 column. Quantification was made using internal standards. All analytes have been validated according to the performance criteria of Decision 2002/657/EC. Trueness of the method ranged from to 93% to 111% for all analytes and intermediate precision were to 1.2-18.8%. The limits of quantification (LOQ) were from 13 to 150 µg kg-1 depending on the analytes. The method is suitable for the monitoring and quantification of antibiotic residues in feathers over the range 13-600 µg kg-1 depending on the compound.
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Affiliation(s)
- Estelle Dréano
- French Agency for Food, Environmental and Occupational Health and Safety, Laboratory of Fougères, Bioagropolis, France
| | - Michel Laurentie
- French Agency for Food, Environmental and Occupational Health and Safety, Laboratory of Fougères, Bioagropolis, France
| | - Dominique Hurtaud-Pessel
- French Agency for Food, Environmental and Occupational Health and Safety, Laboratory of Fougères, Bioagropolis, France
| | - Sophie Mompelat
- French Agency for Food, Environmental and Occupational Health and Safety, Laboratory of Fougères, Bioagropolis, France
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Alladio E, Amante E, Bozzolino C, Seganti F, Salomone A, Vincenti M, Desharnais B. Effective validation of chromatographic analytical methods: The illustrative case of androgenic steroids. Talanta 2020; 215:120867. [DOI: 10.1016/j.talanta.2020.120867] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/23/2020] [Accepted: 02/24/2020] [Indexed: 12/16/2022]
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12
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Courlet P, Alves Saldanha S, Cavassini M, Marzolini C, Choong E, Csajka C, Günthard HF, André P, Buclin T, Desfontaine V, Decosterd LA. Development and validation of a multiplex UHPLC-MS/MS assay with stable isotopic internal standards for the monitoring of the plasma concentrations of the antiretroviral drugs bictegravir, cabotegravir, doravirine, and rilpivirine in people living with HIV. JOURNAL OF MASS SPECTROMETRY : JMS 2020; 55:e4506. [PMID: 32160389 PMCID: PMC7317362 DOI: 10.1002/jms.4506] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/04/2020] [Accepted: 02/15/2020] [Indexed: 06/04/2023]
Abstract
The widespread use of highly active antiretroviral treatments has dramatically changed the prognosis of people living with HIV (PLWH). However, such treatments have to be taken lifelong raising issues regarding the maintenance of both therapeutic effectiveness and long-term tolerability. Recently approved or investigational antiretroviral drugs present considerable advantages, allowing once daily oral dosage along with activity against resistant variants (eg, bictegravir and doravirine) and also parenteral intramuscular administration that facilitates treatment adherence (eg, long-acting injectable formulations such as cabotegravir and rilpivirine). Still, there remains a risk of insufficient or exaggerated circulating exposure due to absorption issues, abnormal elimination, drug-drug interactions, and others. In this context, a multiplex ultra-high performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS) bioassay has been developed for the monitoring of plasma levels of bictegravir, cabotegravir, doravirine, and rilpivirine in PLWH. A simple and convenient protein precipitation was performed followed by direct injection of the supernatant into the UHPLC-MS/MS system. The four analytes were eluted in less than 3 minutes using a reversed-phase chromatography method coupled with triple quadrupole mass spectrometry detection. This bioassay was fully validated following international guidelines and achieved good performances in terms of trueness (94.7%-107.5%), repeatability (2.6%-11%), and intermediate precision (3.0%-11.2%) over the clinically relevant concentration ranges (from 30 to 9000 ng/mL for bictegravir, cabotegravir, and doravirine and from 10 to 1800 ng/mL for rilpivirine). This sensitive, accurate, and rapid UHPLC-MS/MS assay is currently applied in our laboratory for routine therapeutic drug monitoring of the oral drugs bictegravir and doravirine and is also intended to be applied for the monitoring of cabotegravir/rilpivirine levels in plasma from PLWH receiving once monthly or every 2-month intramuscular injection of these long-acting antiretroviral drugs.
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Affiliation(s)
- Perrine Courlet
- Service of Clinical PharmacologyLausanne University Hospital and University of LausanneLausanneSwitzerland
| | - Susana Alves Saldanha
- Service of Clinical PharmacologyLausanne University Hospital and University of LausanneLausanneSwitzerland
| | - Matthias Cavassini
- Service of Infectious DiseasesLausanne University Hospital and University of LausanneLausanneSwitzerland
| | - Catia Marzolini
- Division of Infectious Diseases and Hospital EpidemiologyUniversity Hospital of BaselBaselSwitzerland
- University of BaselBaselSwitzerland
| | - Eva Choong
- Service of Clinical PharmacologyLausanne University Hospital and University of LausanneLausanneSwitzerland
| | - Chantal Csajka
- Centre for Research and Innovation in Clinical Pharmaceutical SciencesUniversity Hospital and University of LausanneLausanneSwitzerland
- Institute of Pharmaceutical Sciences of Western SwitzerlandUniversity of Geneva, University of LausanneGenevaSwitzerland
- School of Pharmaceutical SciencesUniversity of GenevaGenevaSwitzerland
| | - Huldrych F. Günthard
- Division of Infectious Diseases and Hospital EpidemiologyUniversity Hospital ZurichSwitzerland
- Institute of Medical Virology, Swiss National Reference Centre for RetrovirusesUniversity of ZurichZurichSwitzerland
| | - Pascal André
- Service of Clinical PharmacologyLausanne University Hospital and University of LausanneLausanneSwitzerland
| | - Thierry Buclin
- Service of Clinical PharmacologyLausanne University Hospital and University of LausanneLausanneSwitzerland
| | - Vincent Desfontaine
- Service of Clinical PharmacologyLausanne University Hospital and University of LausanneLausanneSwitzerland
| | - Laurent Arthur Decosterd
- Service of Clinical PharmacologyLausanne University Hospital and University of LausanneLausanneSwitzerland
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13
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Kresge GA, Grosse S, Zimmer A, Grinias KM, De Pra M, Wong JMT, Steiner F, Grinias JP. Strategies in developing high-throughput liquid chromatography protocols for method qualification of pharmacopeial monographs. J Sep Sci 2020; 43:2964-2970. [PMID: 32388922 DOI: 10.1002/jssc.202000403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 11/11/2022]
Abstract
Method qualification is a key step in the development of routine analytical monitoring of pharmaceutical products. However, when relying on published monographs that describe longer method times based on older high-performance liquid chromatography column and instrument technology, this can delay the overall analysis process for generated drug products. In this study, high-throughput ultrahigh pressure liquid chromatography techniques were implemented to decrease the amount of time needed to complete a 24-run sequence to identify linearity, recovery, and repeatability for both drug assay and impurity analysis in 16 min. Multiple experimental parameters were tested to identify a range of experimental settings that could be used for the sequence while still maintaining this fast analysis time. The full sequence was replicated on a different system and with different columns, further demonstrating its robustness.
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Affiliation(s)
- Glenn A Kresge
- Department of Chemistry & Biochemistry, Rowan University, Glassboro, NJ, USA
| | | | - Alexis Zimmer
- Department of Chemistry & Biochemistry, Rowan University, Glassboro, NJ, USA
| | - Kaitlin M Grinias
- Analytical Platforms & Platform Modernization , GlaxoSmithKline, Collegeville, PA, USA
| | | | | | | | - James P Grinias
- Department of Chemistry & Biochemistry, Rowan University, Glassboro, NJ, USA
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14
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Pucciarini L, González-Ruiz V, Zangari J, Martinou JC, Natalini B, Sardella R, Rudaz S. Development and validation of a chiral UHPLC-MS method for the analysis of cysteine enantiomers in biological samples. J Pharm Biomed Anal 2020; 177:112841. [DOI: 10.1016/j.jpba.2019.112841] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/22/2019] [Accepted: 08/26/2019] [Indexed: 12/12/2022]
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15
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Optimized one-pot derivatization and enantioseparation of cysteine: Application to the study of a dietary supplement. J Pharm Biomed Anal 2019; 180:113066. [PMID: 31891875 DOI: 10.1016/j.jpba.2019.113066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 11/24/2022]
Abstract
Cysteine is a sulfur-containing amino acid which plays an outstanding role in many biological pathways in mammals. The analysis and quantification of native cysteine remains a critical issue due to its highly reactive thiol group evolving to the disulfide cystine derivative through oxidation reaction. Aimed at improving the derivative stability, cysteine was labelled with 4-fluoro-7-nitro-2,1,3-benzoxadiazole (NBD-F), which reacts with both amino and thiol groups. The derivatization was optimized and the chemical identity of the reaction product was assessed via high-resolution mass spectrometry. The NBD-cysteine derivative resulted stable for 10 days. This derivative was enantioresolved (α and RS equal to 1.25 and 2.70, respectively) thanks to a (R,R)-Whelk-O1 phase with the following chromatographic setting: eluent, MeOH/water-90/10 (v/v) with 15 mM ammonium formate (pwsH 6.0); column temperature, 35 °C; flow rate, 1.0 mL/min. The developed method was validated following the ICH guidelines and applied for the quality control of a L-cysteine containing dietary supplement.
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16
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Yuan L, Gu H, Zeng J, Pillutla RC, Ji QC. Application of in-sample calibration curve methodology for regulated bioanalysis: Critical considerations in method development, validation and sample analysis. J Pharm Biomed Anal 2019; 177:112844. [PMID: 31491659 DOI: 10.1016/j.jpba.2019.112844] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/07/2019] [Accepted: 08/28/2019] [Indexed: 10/26/2022]
Abstract
Traditionally, for a liquid chromatography tandem mass spectrometry (LC-MS/MS) bioanalytical assay, an external calibration curve is required to achieve accurate quantitation of an analyte. Recently, a novel in-sample calibration curves (ISCC) methodology that can achieve quick and accurate LC-MS/MS bioanalysis without the use of an external calibration curve was reported. The ISCC methodology utilizes the presence of multiple naturally occurring isotopologues of a stable isotopically labeled analyte to construct an in-sample calibration curve for the quantification. This methodology has great potential in many applications, for example biomarker measurement, quantitative proteomics and clinical diagnosis. Here, we assessed the feasibility of applying this ISCC-LC-MS/MS methodology in regulated bioanalysis using BMS-984478, a drug candidate, as the model compound. We also proposed method validation procedures/processes for this new approach for industry peers' consideration and feedback. A LC-MS/MS method using the ISCC strategy was successfully developed and validated for the quantitative analysis of BMS-984478 in human plasma over the range of 1.33-993.42 ng/mL. The validated ISCC-LC-MS/MS method was compared with a previously validated method using the conventional external calibration curve approach, and the two methods showed equivalent performance. Critical considerations and practical approaches in method development, validation and sample analysis were also discussed. Our work demonstrated that the ISCC-LC-MS/MS methodology is a promising approach for regulated LC-MS/MS bioanalysis. ISCC-LC-MS/MS methodology has its unique advantages and has great potential to be widely applied for various quantitative applications, and may even change the landscape of quantitative analysis.
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Affiliation(s)
- Long Yuan
- Bioanalytical Sciences, Research & Development, Bristol-Myers Squibb Co., Princeton, NJ 08543, USA.
| | - Huidong Gu
- Bioanalytical Sciences, Research & Development, Bristol-Myers Squibb Co., Princeton, NJ 08543, USA
| | - Jianing Zeng
- Bioanalytical Sciences, Research & Development, Bristol-Myers Squibb Co., Princeton, NJ 08543, USA
| | - Renuka C Pillutla
- Bioanalytical Sciences, Research & Development, Bristol-Myers Squibb Co., Princeton, NJ 08543, USA
| | - Qin C Ji
- Bioanalytical Sciences, Research & Development, Bristol-Myers Squibb Co., Princeton, NJ 08543, USA.
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17
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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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18
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Soriano ML, Zougagh M, Ríos Á, Valcárcel M. Analytical reliability of simple, rapid, minuturizated, direct analytical processes: A call to arms. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.03.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Guichard N, Rudaz S, Bonnabry P, Fleury-Souverain S. Validation and uncertainty estimation for trace amounts determination of 25 drugs used in hospital chemotherapy compounding units. J Pharm Biomed Anal 2019; 172:139-148. [PMID: 31035095 DOI: 10.1016/j.jpba.2019.04.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/09/2019] [Accepted: 04/20/2019] [Indexed: 11/25/2022]
Abstract
The validation and uncertainty assessment of the analytical method developed for the simultaneous determination of 25 anticancer drugs commonly handled in hospital pharmacy was reported. Selected compounds were 5-fluorouracil, cytarabine, fludarabine phosphate, ganciclovir, gemcitabine, dacarbazine, methotrexate, pemetrexed, busulfan, raltitrexed, etoposide phosphate, topotecan, ifosfamide, cyclophosphamide, irinotecan, doxorubicin, epirubicin, daunorubicin, idarubicin, vincristine, vinblastine, vinorelbine, docetaxel and paclitaxel. Accuracy and uncertainty profiles were obtained for all compounds. Quantitative performances were satisfactory in term of specificity, sensitivity, precision and accuracy. Repeatability (1.9-25.4%) and intermediate precision (2.7-29%) were determined for all target compounds. Lower limits of quantification between 1 and 25 ng/mL were obtained. Uncertainty associated to measurement of routine samples was evaluated. The multi-targeted method was specific and reliable and was successfully applied to wipe samples from hospital pharmacy chemotherapy compounding unit and to the determination of outside contamination of vials from pharmaceutical manufacturers.
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Affiliation(s)
- Nicolas Guichard
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva 4, Switzerland; Pharmacy, Geneva University Hospitals (HUG), Geneva, Switzerland.
| | - Serge Rudaz
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva 4, Switzerland
| | - Pascal Bonnabry
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva 4, Switzerland; Pharmacy, Geneva University Hospitals (HUG), Geneva, Switzerland
| | - Sandrine Fleury-Souverain
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva 4, Switzerland; Pharmacy, Geneva University Hospitals (HUG), Geneva, Switzerland
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20
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Daguer H, Hoff RB, Molognoni L, Kleemann CR, Felizardo LV. Outbreaks, toxicology, and analytical methods of marine toxins in seafood. Curr Opin Food Sci 2018. [DOI: 10.1016/j.cofs.2018.10.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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