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Abady MM, Jeong JS, Kwon HJ. Dried blood spot sampling coupled with liquid chromatography-tandem mass for simultaneous quantitative analysis of multiple cardiovascular drugs. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1242:124215. [PMID: 38917652 DOI: 10.1016/j.jchromb.2024.124215] [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: 05/03/2024] [Revised: 06/10/2024] [Accepted: 06/20/2024] [Indexed: 06/27/2024]
Abstract
Dried Blood Spots (DBS) revolutionize therapeutic drug monitoring using LC-MS for the precise quantification of cardiovascular drugs (CDs), enabling personalized treatment adapted to patient-specific pharmacokinetics with minimal invasiveness. This study aims to achieve simultaneous quantification of eight CDs in DBS, overcoming physicochemical challenges. A two-step protein precipitation method was used for simple and precise sample preparation. The drugs were analyzed using LC-MS/MS in ESI positive-ion mode, showing high sensitivity and linearity, with a correlation coefficient (r2) exceeding 0.999, after being separated on a reversed-phase chromatography by gradient elution of DW-acetonitrile containing 0.1 % formic acid + 2 mM ammonium formate. The validation results indicate good selectivity, with no observed matrix effect and carry-over. The intra- and inter-day accuracy and precision were within 6 % for most drugs, except for digoxin and deslanoside at low therapeutic levels where the variation was within 20 %. Stability tests confirmed suitable DBS handling and storage conditions, indicating drug stability for at least 30 days at room temperature. The analysis of whole spot has demonstrated remarkable precision and reliability in all target drugs. The analysis of 3 mm internal diameter discs, punched in and out of DBS, presumed to contain 3 µL of blood, showed acceptable accuracy for most drugs, with less polar drugs like digoxin and deslanoside showing lower accuracy, indicating a need for further correction due to non-uniform drug distribution. Consequently, the developed LC-MS/MS method enables the quantification of multiple CDs in a single DBS analysis, while suggesting the potential for accuracy-based analysis.
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Affiliation(s)
- Mariam M Abady
- Organic Metrology Group, Division of Chemical and Material Metrology, Korea Research Institute of Standards and Science, Yuseong-gu, Daejeon 34113, Republic of Korea; Department of Bio-Analytical Science, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea; Department of Nutrition and Food Science, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Ji-Seon Jeong
- Organic Metrology Group, Division of Chemical and Material Metrology, Korea Research Institute of Standards and Science, Yuseong-gu, Daejeon 34113, Republic of Korea; Department of Bio-Analytical Science, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Ha-Jeong Kwon
- Organic Metrology Group, Division of Chemical and Material Metrology, Korea Research Institute of Standards and Science, Yuseong-gu, Daejeon 34113, Republic of Korea.
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Ludna Duarte M, Mikaelle Brandão Silva A, Wellithom Viturino da Silva J, Pereira Santana D, Victor de Castro W, Cláudio Arraes de Alencar L, César Galindo Bedor D, Bastos Leal L. A validated method for simultaneous quantification of four antiretrovirals in dried blood spot and plasma using LC-MS/MS: Application to efavirenz therapeutic drug monitoring in pregnant patients. Clin Biochem 2024; 127-128:110765. [PMID: 38649089 DOI: 10.1016/j.clinbiochem.2024.110765] [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: 10/09/2023] [Revised: 04/05/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
INTRODUCTION The specific physiological background induced by pregnancy leads to significant changes in maternal pharmacokinetics, suggesting potential variability in plasma concentrations of antiretrovirals. Pregnant HIV patients exposed to subtherapeutic doses, particularly in the last trimester of the pregnancy, have higher chances to transmit the infection to their children. Therefore, the therapeutic drug monitoring of antiretrovirals in HIV pregnant patients would be of great value. OBJECTIVES This study aimed to develop and validate a sensitive liquid chromatograph tandem mass spectrometry (LC-MS/MS) method for simultaneous quantification of efavirenz, raltegravir, atazanavir, and ritonavir in dried blood spots (DBS) and plasma. DESIGN AND METHODS The analytes were extracted from the DBS punch and plasma with a mixture of methanol:zinc sulfate 200 mM (50:50, v/v) and 100 % methanol, respectively. For the chromatographic separation a Shim-pack® C18, 4.6 mm × 150 mm, 5 μm column was used. Detection was performed in a 3200-QTRAP® mass spectrometer, with a run time of 6 min. RESULTS The assay was linear in the range of 15-1,000 ng/mL for raltegravir, 50-10,000 ng/mL for both atazanavir and ritonavir, 50-5,000 ng/mL for efavirenz. Precision and accuracy at these concentrations were less than 15 % for all analytes. Raltegravir, atazanavir, and ritonavir were stable for seven days at 23 °C and 40 °C, whereas efavirenz was stable for twenty-four hours at the same conditions. CONCLUSIONS The method was successfully applied to quantify efavirenz in DBS samples obtained from HIV-1 infected pregnant volunteers under antiretroviral therapy. The concentrations of efavirenz in DBS and plasma were comparable according to Passing-Bablok regression and Bland-Altman analysis.
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Affiliation(s)
- Maira Ludna Duarte
- Department of Pharmaceutical Sciences, Federal University of Pernambuco, Campus Recife, S/n, Recife, Pernambuco, CEP 50740-521, Brazil.
| | - Aurylanne Mikaelle Brandão Silva
- Department of Pharmaceutical Sciences, Federal University of Pernambuco, Campus Recife, S/n, Recife, Pernambuco, CEP 50740-521, Brazil
| | - José Wellithom Viturino da Silva
- Department of Pharmaceutical Sciences, Federal University of Pernambuco, Campus Recife, S/n, Recife, Pernambuco, CEP 50740-521, Brazil
| | - Davi Pereira Santana
- Department of Pharmaceutical Sciences, Federal University of Pernambuco, Campus Recife, S/n, Recife, Pernambuco, CEP 50740-521, Brazil.
| | - Whocely Victor de Castro
- Graduate Program in Pharmaceutical Sciences, Federal University of São João del-Rei, Av. Sebastião Gonçalves Coelho 400, Chanadour, Divinópolis, Minas Gerais, CEP 35501-296, Brazil.
| | - Luiz Cláudio Arraes de Alencar
- Department of Tropical Medicine, Federal University of Pernambuco, Campus Recife, S/n, Recife, Pernambuco, CEP 50740-521, Brazil
| | - Danilo César Galindo Bedor
- Department of Pharmaceutical Sciences, Federal University of Pernambuco, Campus Recife, S/n, Recife, Pernambuco, CEP 50740-521, Brazil.
| | - Leila Bastos Leal
- Department of Pharmaceutical Sciences, Federal University of Pernambuco, Campus Recife, S/n, Recife, Pernambuco, CEP 50740-521, Brazil.
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Jacobs CM, Wagmann L, Meyer MR. Sample Matrices for Mass Spectrometry-Based Adherence Monitoring: A Systematic Critical Review. Ther Drug Monit 2024; 46:6-15. [PMID: 37798828 DOI: 10.1097/ftd.0000000000001145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 07/12/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND Analytical monitoring of adherence using mass spectrometry (MS) plays an important role in clinical toxicology. Unambiguous detection of drugs (of abuse) and/or their metabolites in body fluids is needed to monitor intake of medication as prescribed or to monitor abstinence as a follow-up to detoxification procedures. This study focused on the advantages and disadvantages of different sample matrices used for MS-based adherence monitoring. METHODS Relevant articles were identified through a literature search in the PubMed database. English articles published between January 01, 2017, and December 31, 2022, were selected using the keywords "adherence assess*" or "adherence monit*" or "compliance assess*" or "compliance monit*" in combination with "mass spectrom*" in the title or abstract. RESULTS A total of 51 articles were identified, 37 of which were within the scope of this study. MS-based monitoring was shown to improve patient adherence to prescribed drugs. However, MS analysis may not be able to assess whether treatment was rigorously followed beyond the last few days before the sampling event, except when hair is the sample matrix. For medication adherence monitoring, blood-based analyses may be preferred because reference plasma concentrations are usually available, whereas for abstinence control, urine and hair samples have the advantage of extended detection windows compared with blood. Alternative sample matrices, such as dried blood samples, oral fluid, and exhaled breath, are suitable for at-home sampling; however, little information is available regarding the pharmacokinetics and reference ranges of drug (of abuse) concentrations. CONCLUSIONS Each sample matrix has strengths and weaknesses, and no single sample matrix can be considered the gold standard for monitoring adherence. It is important to have sufficient information regarding the pharmacokinetics of target substances to select a sample matrix in accordance with the desired purpose.
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Affiliation(s)
- Cathy M Jacobs
- Department of Experimental and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Homburg, Germany
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Cafaro A, Conti M, Pigliasco F, Barco S, Bandettini R, Cangemi G. Biological Fluid Microsampling for Therapeutic Drug Monitoring: A Narrative Review. Biomedicines 2023; 11:1962. [PMID: 37509602 PMCID: PMC10377272 DOI: 10.3390/biomedicines11071962] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/04/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Therapeutic drug monitoring (TDM) is a specialized area of laboratory medicine which involves the measurement of drug concentrations in biological fluids with the aim of optimizing efficacy and reducing side effects, possibly modifying the drug dose to keep the plasma concentration within the therapeutic range. Plasma and/or whole blood, usually obtained by venipuncture, are the "gold standard" matrices for TDM. Microsampling, commonly used for newborn screening, could also be a convenient alternative to traditional sampling techniques for pharmacokinetics (PK) studies and TDM, helping to overcome practical problems and offering less invasive options to patients. Although technical limitations have hampered the use of microsampling in these fields, innovative techniques such as 3-D dried blood spheroids, volumetric absorptive microsampling (VAMS), dried plasma spots (DPS), and various microfluidic devices (MDS) can now offer reliable alternatives to traditional samples. The application of microsampling in routine clinical pharmacology is also hampered by the need for instrumentation capable of quantifying analytes in small volumes with sufficient sensitivity. The combination of microsampling with high-sensitivity analytical techniques, such as liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS), is particularly effective in ensuring high accuracy and sensitivity from very small sample volumes. This manuscript provides a critical review of the currently available microsampling devices for both whole blood and other biological fluids, such as plasma, urine, breast milk, and saliva. The purpose is to provide useful information in the scientific community to laboratory personnel, clinicians, and researchers interested in implementing the use of microsampling in their routine clinical practice.
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Affiliation(s)
- Alessia Cafaro
- Chromatography and Mass Spectrometry Section, Central Laboratory of Analysis, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy
| | - Matteo Conti
- Public Health Department, Imola Local Unit, Regione Emilia-Romagna Healthcare Service, 40026 Imola, Italy
| | - Federica Pigliasco
- Chromatography and Mass Spectrometry Section, Central Laboratory of Analysis, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy
| | - Sebastiano Barco
- Chromatography and Mass Spectrometry Section, Central Laboratory of Analysis, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy
| | - Roberto Bandettini
- Chromatography and Mass Spectrometry Section, Central Laboratory of Analysis, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy
| | - Giuliana Cangemi
- Chromatography and Mass Spectrometry Section, Central Laboratory of Analysis, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy
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Müller IR, Linden G, Charão MF, Antunes MV, Linden R. Dried blood spot sampling for therapeutic drug monitoring: challenges and opportunities. Expert Rev Clin Pharmacol 2023; 16:691-701. [PMID: 37300458 DOI: 10.1080/17512433.2023.2224562] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 06/08/2023] [Indexed: 06/12/2023]
Abstract
INTRODUCTION The use of dried blood spots (DBS) has gained interest in the field of therapeutic drug monitoring (TDM) due to its potential advantages, such as minimally invasive capillary blood collection, potential stabilization of drugs and metabolites at room or high temperatures, and lower biohazard, allowing for inexpensive storage and transportation. However, there are several drawbacks to the clinical use of DBS in TDM, mostly related to hematocrit (Hct) effects, differences between venous and capillary blood concentrations, among others, that must be evaluated during analytical and clinical method validation. AREA COVERED This review focuses on the most recent publications on the applications of DBS sampling for TDM (2016-2022), with a special focus on the challenges presented by this alternative sampling strategy, as well as the opportunities for clinical applications. Real-life studies presenting clinical applications were reviewed. EXPERT OPINION With the availability of method development and validation guidelines for DBS-based methods in TDM, higher levels of assay validation standardization have been achieved, expanding the clinical applications of DBS sampling in patient care. New sampling devices that overcome the limitations of classical DBS, such as the Hct effects, will further encourage the use of DBS in routine TDM.
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Affiliation(s)
| | - Gabriel Linden
- Laboratory of Analytical Toxicology, Universidade Feevale, Novo Hamburgo, Brazil
| | | | | | - Rafael Linden
- Laboratory of Analytical Toxicology, Universidade Feevale, Novo Hamburgo, Brazil
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Mahdavi R, Talebpour Z. Analytical approaches for determination of COVID-19 candidate drugs in human biological matrices. Trends Analyt Chem 2023; 160:116964. [PMID: 36816451 PMCID: PMC9922681 DOI: 10.1016/j.trac.2023.116964] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/30/2023] [Accepted: 02/04/2023] [Indexed: 02/24/2023]
Abstract
Since the outbreak of the COVID-19 pandemic, the use of antiviral and other available drugs has been considered to combat or reduce the clinical symptoms of patients. In this regard, it would be necessary to choose sensitive and selective analytical techniques for pharmacokinetic and pharmacodynamic studies, monitoring of drug concentration in biological fluids, and determination of the most appropriate dose to achieve the desired effect on the disease. In the present study, the analytical techniques based on spectroscopy and chromatography with different detectors for diagnosis and determination of candidate drugs in the treatment of COVID-19 in human biological fluids are reviewed during the period 2015-2022. Moreover, various sample preparation and extraction techniques, are being used for this purpose, such as protein precipitation (PP), solid-phase extraction (SPE), liquid-liquid extraction (LLE), and QuEChERS (quick, easy, cheap, effective, rugged, and safe) are investigated.
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Affiliation(s)
- Rabee Mahdavi
- Department of Analytical Chemistry, Faculty of Chemistry, Alzahra University, Vanak, Tehran, Iran
| | - Zahra Talebpour
- Department of Analytical Chemistry, Faculty of Chemistry, Alzahra University, Vanak, Tehran, Iran,Analytical and Bioanalytical Research Centre, Alzahra University, Vanak, Tehran, Iran,Corresponding author. Department of Analytical Chemistry, Faculty of Chemistry, Alzahra University, Vanak, Tehran, Iran
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Zijp TR, Izzah Z, Åberg C, Gan CT, Bakker SJL, Touw DJ, van Boven JFM. Clinical Value of Emerging Bioanalytical Methods for Drug Measurements: A Scoping Review of Their Applicability for Medication Adherence and Therapeutic Drug Monitoring. Drugs 2021; 81:1983-2002. [PMID: 34724175 PMCID: PMC8559140 DOI: 10.1007/s40265-021-01618-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2021] [Indexed: 12/05/2022]
Abstract
INTRODUCTION Direct quantification of drug concentrations allows for medication adherence monitoring (MAM) and therapeutic drug monitoring (TDM). Multiple less invasive methods have been developed in recent years: dried blood spots (DBS), saliva, and hair analyses. AIM To provide an overview of emerging drug quantification methods for MAM and TDM, focusing on the clinical validation of methods in patients prescribed chronic drug therapies. METHODS A scoping review was performed using a systematic search in three electronic databases covering the period 2000-2020. Screening and inclusion were performed by two independent reviewers in Rayyan. Data from the articles were aggregated in a REDCap database. The main outcome was clinical validity of methods based on study sample size, means of cross-validation, and method description. Outcomes were reported by matrix, therapeutic area and application (MAM and/or TDM). RESULTS A total of 4590 studies were identified and 175 articles were finally included; 57 on DBS, 66 on saliva and 55 on hair analyses. Most reports were in the fields of neurological diseases (37%), infectious diseases (31%), and transplantation (14%). An overview of clinical validation was generated of all measured drugs. A total of 62 drugs assays were applied for MAM and 131 for TDM. CONCLUSION MAM and TDM are increasingly possible without traditional invasive blood sampling: the strengths and limitations of DBS, saliva, and hair differ, but all have potential for valid and more convenient drug monitoring. To strengthen the quality and comparability of future evidence, standardisation of the clinical validation of the methods is recommended.
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Affiliation(s)
- Tanja R Zijp
- University of Groningen, University Medical Center Groningen, Department of Clinical Pharmacy and Pharmacology, Groningen, The Netherlands
| | - Zamrotul Izzah
- University of Groningen, University Medical Center Groningen, Department of Clinical Pharmacy and Pharmacology, Groningen, The Netherlands
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia
- University of Groningen, Groningen Research Institute of Pharmacy, Department of Pharmaceutical Analysis, Groningen, The Netherlands
| | - Christoffer Åberg
- University of Groningen, Groningen Research Institute of Pharmacy, Department of Pharmaceutical Analysis, Groningen, The Netherlands
| | - C Tji Gan
- University of Groningen, University Medical Center Groningen, Respiratory Diseases and Lung Transplantation, Groningen, The Netherlands
| | - Stephan J L Bakker
- University of Groningen, University Medical Center Groningen, Department of Internal Medicine, Division of Nephrology, Groningen, The Netherlands
| | - Daan J Touw
- University of Groningen, University Medical Center Groningen, Department of Clinical Pharmacy and Pharmacology, Groningen, The Netherlands.
- University of Groningen, Groningen Research Institute of Pharmacy, Department of Pharmaceutical Analysis, Groningen, The Netherlands.
- Medication Adherence Expertise Center of the Northern Netherlands (MAECON), Groningen, The Netherlands.
| | - Job F M van Boven
- University of Groningen, University Medical Center Groningen, Department of Clinical Pharmacy and Pharmacology, Groningen, The Netherlands
- Medication Adherence Expertise Center of the Northern Netherlands (MAECON), Groningen, The Netherlands
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Simon D, Oleschuk R. The liquid micro junction-surface sampling probe (LMJ-SSP); a versatile ambient mass spectrometry interface. Analyst 2021; 146:6365-6378. [PMID: 34553725 DOI: 10.1039/d1an00725d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Ambient ionization methods have become important tools in mass spectrometry. The LMJ-SSP can significantly simplify/reduce lengthy sample preparation requirements associated with mass spectrometry analysis. Samples may be introduced through direct contact, insertion and droplet injection, enabling applications from drug discovery and surface analysis to tissue profiling and metabolic mapping. This review examines the underlying principles associated with the LMJ-SSP interface and highlights modifications of the original design that have extended its capability. We summarize different application areas that have exploited the method and describe potential future directions for the adaptable ambient ionization source.
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Affiliation(s)
- David Simon
- Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada.
| | - Richard Oleschuk
- Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada.
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Selcuk O, Demir Y, Erkmen C, Yıldırım S, Uslu B. Analytical Methods for Determination of Antiviral Drugs in Different Matrices: Recent Advances and Trends. Crit Rev Anal Chem 2021; 52:1662-1693. [PMID: 33983841 DOI: 10.1080/10408347.2021.1908111] [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: 10/21/2022]
Abstract
Viruses are the main pathogenic substances that cause severe diseases in humans and other living things. They are among the most common microorganisms, and consequently, antiviral drugs have emerged to prevent and treat viral infections. Antiviral drugs are an essential drug group considering their prescription and consumption rates for different diseases and indications. Therefore, it is crucial to develop accurate and precise analytical methods to detect antiviral drugs in various matrices. Chromatographic techniques are used frequently for the quantification purpose since they allow simultaneous determination of antivirals. Electrochemical methods have also gained importance since the analysis can be performed quickly without the need for pretreatment. Spectrophotometric and spectrofluorimetric methods are used because they are simple, inexpensive, and less time-consuming methods. The purpose of this review is to present an overview of the analysis of currently used antiviral drugs from 2010 to 2021. Since studies on antiviral drugs are numerous, selected publications were reviewed in this article. The analysis of antiviral drugs was divided into three main groups: chromatographic, spectrometric, and electrochemical methods which were applied to different matrices, including pharmaceutical, biological, and environmental samples.
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Affiliation(s)
- Ozge Selcuk
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Yeliz Demir
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Cem Erkmen
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Sercan Yıldırım
- Department of Analytical Chemistry, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkey
| | - Bengi Uslu
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
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A review of recent advances in microsampling techniques of biological fluids for therapeutic drug monitoring. J Chromatogr A 2020; 1635:461731. [PMID: 33285415 DOI: 10.1016/j.chroma.2020.461731] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/09/2020] [Accepted: 11/12/2020] [Indexed: 12/12/2022]
Abstract
Conventional sampling of biological fluids often involves a bulk quantity of samples that are tedious to collect, deliver and process. Miniaturized sampling approaches have emerged as promising tools for sample collection due to numerous advantages such as minute sample size, patient friendliness and ease of shipment. This article reviews the applications and advances of microsampling techniques in therapeutic drug monitoring (TDM), covering the period January 2015 - August 2020. As whole blood is the gold standard sampling matrix for TDM, this article comprehensively highlights the most historical microsampling technique, the dried blood spot (DBS), and its development. Advanced developments of DBS, ranging from various automation DBS, paper spray mass spectrometry (PS-MS), 3D dried blood spheroids and volumetric absorptive paper disc (VAPD) and mini-disc (VAPDmini) are discussed. The volumetric absorptive microsampling (VAMS) approach, which overcomes the hematocrit effect associated with the DBS sample, has been employed in recent TDM. The sample collection and sample preparation details in DBS and VAMS are outlined and summarized. This review also delineates the involvement of other biological fluids (plasma, urine, breast milk and saliva) and their miniaturized dried matrix forms in TDM. Specific features and challenges of each microsampling technique are identified and comparison studies are reviewed.
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Acquavia MA, Foti L, Pascale R, Nicolò A, Brancaleone V, Cataldi TRI, Martelli G, Scrano L, Bianco G. Detection and quantification of Covid-19 antiviral drugs in biological fluids and tissues. Talanta 2020; 224:121862. [PMID: 33379073 PMCID: PMC7642756 DOI: 10.1016/j.talanta.2020.121862] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 10/30/2020] [Accepted: 11/02/2020] [Indexed: 12/15/2022]
Abstract
Since coronavirus disease 2019 (COVID-19) started as a fast-spreading pandemic, causing a huge number of deaths worldwide, several therapeutic options have been tested to counteract or reduce the clinical symptoms of patients infected with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Currently, no specific drugs for COVID-19 are available, but many antiviral agents have been authorised by several national agencies. Most of them are under investigation in both preclinical and clinical trials; however, pharmacokinetic and metabolism studies are needed to identify the most suitable dose to achieve the desired effect on SARS-CoV-2. Therefore, the efforts of the scientific community have focused on the screening of therapies able to counteract the most severe effects of the infection, as well as on the search of sensitive and selective analytical methods for drug detection in biological matrices, both fluids and tissues. In the last decade, many analytical methods have been proposed for the detection and quantification of antiviral compounds currently being tested for COVID-19 treatment. In this review, a critical discussion on the overall analytical procedure is provided, i.e (a) sample pre-treatment and extraction methods such as protein precipitation (PP), solid-phase extraction (SPE), liquid–liquid extraction (LLE), ultrasound-assisted extraction (UAE) and QuEChERS (quick, easy, cheap, effective, rugged and safe), (b) detection and quantification methods such as potentiometry, spectrofluorimetry and mass spectrometry (MS) as well as (c) methods including a preliminary separation step, such as high performance liquid chromatography (HPLC) and capillary electrophoresis (CE) coupled to UV–Vis or MS detection. Further current trends, advantages and disadvantages and prospects of these methods have been discussed, to help the analytical advances in reducing the harm caused by the SARS-CoV-2 virus. Fourteen antiviral drugs were tested to counteract the effects of COVID-19. A review of analytical methods for antivirals detection is presented. Method validation, drugs extraction, separation and detection are discussed. LC-MS and MS/MS is mostly used for accurate and sensitive drugs quantification.
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Affiliation(s)
- Maria A Acquavia
- Università Degli Studi Della Basilicata, Dipartimento di Scienze, Via Dell'Ateneo Lucano, 10-85100, Potenza, Italy; ALMAGISI S.r.l Corso Italia, 27-39100, Bolzano, Italy.
| | - Luca Foti
- Università Degli Studi Della Basilicata, Dipartimento di Scienze, Via Dell'Ateneo Lucano, 10-85100, Potenza, Italy.
| | - Raffaella Pascale
- Università Degli Studi Della Basilicata, Dipartimento di Scienze, Via Dell'Ateneo Lucano, 10-85100, Potenza, Italy.
| | - Antonia Nicolò
- Università Degli Studi Della Basilicata, Dipartimento di Scienze, Via Dell'Ateneo Lucano, 10-85100, Potenza, Italy.
| | - Vincenzo Brancaleone
- Università Degli Studi Della Basilicata, Dipartimento di Scienze, Via Dell'Ateneo Lucano, 10-85100, Potenza, Italy.
| | - Tommaso R I Cataldi
- Università Degli Studi di Bari Aldo Moro, Dipartimento di Chimica, Via E. Orabona, 4-70126, Bari, Italy.
| | - Giuseppe Martelli
- Università Degli Studi Della Basilicata, Dipartimento di Scienze, Via Dell'Ateneo Lucano, 10-85100, Potenza, Italy.
| | - Laura Scrano
- Università Degli Studi Della Basilicata, Dipartimento Delle Culture Europee e Del Mediterraneo: Arch., Ambiente, Patrimoni Culturali, Via Lanera, 20-75100, Matera, Italy.
| | - Giuliana Bianco
- Università Degli Studi Della Basilicata, Dipartimento di Scienze, Via Dell'Ateneo Lucano, 10-85100, Potenza, Italy.
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Verstraete J, Boffel L, Stove C. Dried blood microsample-assisted determination of vitamins: Recent developments and challenges. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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Schlegel KM, Elsinghorst PW. Myco-DES: Enabling Remote Extraction of Mycotoxins for Robust and Reliable Quantification by Stable Isotope Dilution LC–MS/MS. Anal Chem 2020; 92:5387-5395. [DOI: 10.1021/acs.analchem.0c00087] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Katharina M. Schlegel
- Central Institute of the Bundeswehr Medical Service Munich, Ingolstädter Landstrasse 102, 85748 Garching, Germany
| | - Paul W. Elsinghorst
- Central Institute of the Bundeswehr Medical Service Munich, Ingolstädter Landstrasse 102, 85748 Garching, Germany
- Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany
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Official International Association for Therapeutic Drug Monitoring and Clinical Toxicology Guideline: Development and Validation of Dried Blood Spot-Based Methods for Therapeutic Drug Monitoring. Ther Drug Monit 2020; 41:409-430. [PMID: 31268966 DOI: 10.1097/ftd.0000000000000643] [Citation(s) in RCA: 174] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Dried blood spot (DBS) analysis has been introduced more and more into clinical practice to facilitate Therapeutic Drug Monitoring (TDM). To assure the quality of bioanalytical methods, the design, development and validation needs to fit the intended use. Current validation requirements, described in guidelines for traditional matrices (blood, plasma, serum), do not cover all necessary aspects of method development, analytical- and clinical validation of DBS assays for TDM. Therefore, this guideline provides parameters required for the validation of quantitative determination of small molecule drugs in DBS using chromatographic methods, and to provide advice on how these can be assessed. In addition, guidance is given on the application of validated methods in a routine context. First, considerations for the method development stage are described covering sample collection procedure, type of filter paper and punch size, sample volume, drying and storage, internal standard incorporation, type of blood used, sample preparation and prevalidation. Second, common parameters regarding analytical validation are described in context of DBS analysis with the addition of DBS-specific parameters, such as volume-, volcano- and hematocrit effects. Third, clinical validation studies are described, including number of clinical samples and patients, comparison of DBS with venous blood, statistical methods and interpretation, spot quality, sampling procedure, duplicates, outliers, automated analysis methods and quality control programs. Lastly, cross-validation is discussed, covering changes made to existing sampling- and analysis methods. This guideline of the International Association of Therapeutic Drug Monitoring and Clinical Toxicology on the development, validation and evaluation of DBS-based methods for the purpose of TDM aims to contribute to high-quality micro sampling methods used in clinical practice.
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Duthaler U, Berger B, Erb S, Battegay M, Letang E, Gaugler S, Natamatungiro A, Mnzava D, Donzelli M, Krähenbühl S, Haschke M. Using dried blood spots to facilitate therapeutic drug monitoring of antiretroviral drugs in resource-poor regions. J Antimicrob Chemother 2019; 73:2729-2737. [PMID: 30052975 DOI: 10.1093/jac/dky254] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 06/04/2018] [Indexed: 11/13/2022] Open
Abstract
Objectives We evaluated whether dried blood spots (DBS) are suitable to monitor combined ART when samples are collected in rural Tanzania and transported over a long distance to a specialized bioanalytical laboratory. Methods Plasma and DBS samples were collected in Tanzania from study patients treated with nevirapine, efavirenz or lopinavir. In addition, plasma, whole blood and DBS samples were obtained from a cohort of HIV patients at the site of the bioanalytical laboratory in Switzerland. DBS samples were analysed using a fully automated LC-MS/MS method. Results Comparison of DBS versus plasma concentrations of samples obtained from the bridging study in Switzerland indicated an acceptable bias only for nevirapine (18.4%), whereas for efavirenz and lopinavir a pronounced difference of -47.4% and -48.1% was found, respectively. Adjusting the DBS concentrations by the haematocrit and the fraction of drug bound to plasma proteins removed this bias [efavirenz +9.4% (-6.9% to +25.7%), lopinavir +2.2% (-20.0% to +24.2%)]. Storage and transportation of samples from Tanzania to Switzerland did not affect the good agreement between plasma and DBS for nevirapine [-2.9% (-34.7% to +29.0%)] and efavirenz [-9.6% (-42.9% to +23.8%)]. For lopinavir, however, adjusted DBS concentrations remained considerably below [-32.8% (-70.4% to +4.8%)] corresponding plasma concentrations due to decay of lopinavir in DBS obtained under field conditions. Conclusions Our field study shows that the DBS technique is a suitable tool for therapeutic drug monitoring in resource-poor regions; however, sample stability remains an issue for certain analytes and therefore needs special consideration.
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Affiliation(s)
- Urs Duthaler
- Division of Clinical Pharmacology & Toxicology, Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
| | - Benjamin Berger
- Division of Clinical Pharmacology & Toxicology, Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
| | - Stefan Erb
- Division of Infectious Diseases and Hospital Epidemiology, University and University Hospital Basel, Basel, Switzerland
| | - Manuel Battegay
- Division of Infectious Diseases and Hospital Epidemiology, University and University Hospital Basel, Basel, Switzerland
| | - Emili Letang
- Swiss Tropical and Public Health Institute, Basel, Switzerland.,ISGlobal, Barcelona Centre for International Health Research (CRESIB), Hospital Clinic, Universitat de Barcelona, Barcelona, Spain.,Ifakara Health Institute, Ifakara, Tanzania
| | | | | | | | - Massimiliano Donzelli
- Division of Clinical Pharmacology & Toxicology, Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
| | - Stephan Krähenbühl
- Division of Clinical Pharmacology & Toxicology, Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
| | - Manuel Haschke
- Clinical Pharmacology and Toxicology, Department of General Internal Medicine, Inselspital, University Hospital, Bern, Switzerland.,Institute of Pharmacology, University of Bern, Bern, Switzerland
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Kim HM, Park JH, Long NP, Kim DD, Kwon SW. Simultaneous determination of cardiovascular drugs in dried blood spot by liquid chromatography-tandem mass spectrometry. J Food Drug Anal 2019; 27:906-914. [PMID: 31590762 PMCID: PMC9306983 DOI: 10.1016/j.jfda.2019.06.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/29/2019] [Accepted: 06/10/2019] [Indexed: 12/23/2022] Open
Abstract
A dried blood spot (DBS) sampling method was exploited to extract cardiovascular drugs using a small volume of whole blood of human and rodent. Thereafter, an analytical method using liquid chromatography with tandem mass spectrometry (LC-MS/MS) was developed and validated for the determination of 12 cardiovascular drugs. A 6 mm internal diameter disc containing 10 μL of blood was punched from a specifically designed card and analyzed by LC-MS/MS using a gradient elution method with a total run time of 16 min. For sample separation, a universal octadecyl-silica column was used with a flow rate of 0.2 mL/ min. The developed method was validated in terms of linearity, accuracy, and precision, which showed satisfactory results. In addition, the matrix effects were closely investigated to confirm the extraction efficiency. Additionally, the stability was tested by storing DBSs at room temperature; the results showed that these drugs were stable for at least 30 days. Accordingly, the proposed LC-MS/MS method is capable to analyze several cardiovascular drugs in a single analysis. It can be applied to therapeutic drug monitoring in patients as well as in the in vivo settings.
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Affiliation(s)
- Hyung Min Kim
- College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Ju-Hwan Park
- College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Nguyen Phuoc Long
- College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Dae-Duk Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, South Korea
| | - Sung Won Kwon
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, South Korea
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Fully automated therapeutic drug monitoring of anti-epileptic drugs making use of dried blood spots. J Chromatogr A 2019; 1601:95-103. [DOI: 10.1016/j.chroma.2019.06.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 06/07/2019] [Accepted: 06/08/2019] [Indexed: 12/20/2022]
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18
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Duthaler U, Suenderhauf C, Gaugler S, Vetter B, Krähenbühl S, Hammann F. Development and validation of an LC-MS/MS method for the analysis of ivermectin in plasma, whole blood, and dried blood spots using a fully automatic extraction system. J Pharm Biomed Anal 2019; 172:18-25. [DOI: 10.1016/j.jpba.2019.04.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/05/2019] [Indexed: 10/27/2022]
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Castillo-Mancilla JR, Haberer JE. Adherence Measurements in HIV: New Advancements in Pharmacologic Methods and Real-Time Monitoring. Curr HIV/AIDS Rep 2019; 15:49-59. [PMID: 29380227 DOI: 10.1007/s11904-018-0377-0] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
PURPOSE OF REVIEW In this review, we present new developments in antiretroviral adherence, focusing on pharmacological measures and real-time adherence monitoring. In addition, new strategies on how to incorporate these new measures into research and clinical care are proposed. RECENT FINDINGS Antiretroviral drug concentrations in hair and dried blood spots are two novel pharmacological measures of cumulative drug adherence and exposure that have been recently evaluated in HIV treatment and pre-exposure prophylaxis. Real-time adherence monitoring using electronic devices has also proven highly informative, feasible, and well accepted, offering the possibility for an immediate intervention when non-adherence is detected. Both approaches offer considerable advantages over traditional adherence measures in predicting efficacy. New methods to objectively monitor adherence in real-time and over long time periods have been developed. Further research is required to better understand how these measures can optimize adherence and, ultimately, improve clinical outcomes in HIV treatment and prevention.
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Affiliation(s)
- Jose R Castillo-Mancilla
- Division of Infectious Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Medicine/Infectious Diseases, 12700 E 19th Ave., B168, Aurora, CO, 80045, USA.
| | - Jessica E Haberer
- Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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Gaugler S, Al-Mazroua MK, Issa SY, Rykl J, Grill M, Qanair A, Cebolla VL. Fully Automated Forensic Routine Dried Blood Spot Screening for Workplace Testing. J Anal Toxicol 2018; 43:212-220. [DOI: 10.1093/jat/bky074] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 07/30/2018] [Accepted: 09/11/2018] [Indexed: 02/06/2023] Open
Affiliation(s)
| | | | - Sahar Y Issa
- Faculty of Medicine, Alexandria University, Egypt
| | - Jana Rykl
- Shimadzu Schweiz GmbH, Römerstrasse 3, Reinach, Switzerland
| | | | | | - Vicente L Cebolla
- CSIC, Instituto de Carboquímica, Miguel Luesma Castán 4., Zaragoza, Spain
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Alexovič M, Dotsikas Y, Bober P, Sabo J. Achievements in robotic automation of solvent extraction and related approaches for bioanalysis of pharmaceuticals. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1092:402-421. [DOI: 10.1016/j.jchromb.2018.06.037] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/11/2018] [Accepted: 06/17/2018] [Indexed: 12/27/2022]
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Extended and Fully Automated Newborn Screening Method for Mass Spectrometry Detection. Int J Neonatal Screen 2018; 4:2. [PMID: 33072928 PMCID: PMC7548895 DOI: 10.3390/ijns4010002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 12/23/2017] [Indexed: 12/30/2022] Open
Abstract
A new and fully automated newborn screening method for mass spectrometry was introduced in this paper. Pathological relevant amino acids, acylcarnitines, and certain steroids are detected within 4 min per sample. Each sample is treated in an automated and standardized workflow, where a mixture of deuterated internal standards is sprayed onto the sample before extraction. All compounds showed good linearity, and intra- and inter-day variation lies within the acceptance criteria (except for aspartic acid). The described workflow decreases analysis cost and labor while improving the sample traceability towards good laboratory practice.
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