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Dalla Zuanna P, Curci D, Lucafò M, Addobbati R, Fabretto A, Stocco G. Preanalytical Stability of 13 Antibiotics in Biological Samples: A Crucial Factor for Therapeutic Drug Monitoring. Antibiotics (Basel) 2024; 13:675. [PMID: 39061358 PMCID: PMC11274111 DOI: 10.3390/antibiotics13070675] [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: 07/01/2024] [Revised: 07/16/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024] Open
Abstract
The stability of antibiotic preanalytical samples is a critical factor in therapeutic drug monitoring (TDM), a practice of undoubted importance for the proper therapeutic use of antibiotics, especially in complex management patients, such as pediatrics. This review aims to analyze the data in the literature regarding the preanalytical stability of some of the antibiotics for which TDM is most frequently requested. The literature regarding the preanalytical stability of amikacin, ampicillin, cefepime, ceftazidime, ciprofloxacin, daptomycin, gentamicin, levofloxacin, linezolid, meropenem, piperacillin, teicoplanin, and vancomycin in plasma, serum, whole blood, and dried blood/plasma spot samples was analyzed. Various storage temperatures (room temperature, 4 °C, -20 °C, and -80 °C) and various storage times (from 1 h up to 12 months) as well as subjecting to multiple freeze-thaw cycles were considered. The collected data showed that the non-beta-lactam antibiotics analyzed were generally stable under the normal storage conditions used in analytical laboratories. Beta-lactam antibiotics have more pronounced instability, particularly meropenem, piperacillin, cefepime, and ceftazidime. For this class of antibiotics, we suggest that storage at room temperature should be limited to a maximum of 4 h, storage at 2-8 °C should be limited to a maximum of 24 h, and storage at -20 °C should be limited to a maximum of 7 days; while, for longer storage, freezing at -80 °C is suggested.
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Affiliation(s)
- Paolo Dalla Zuanna
- Clinical and Experimental Pharmacology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy;
| | - Debora Curci
- Institute for Maternal and Child Health IRCCS Burlo Garofolo, 34137 Trieste, Italy; (D.C.); (R.A.); (A.F.)
| | - Marianna Lucafò
- Department of Life Science, University of Trieste, 34127 Trieste, Italy;
| | - Riccardo Addobbati
- Institute for Maternal and Child Health IRCCS Burlo Garofolo, 34137 Trieste, Italy; (D.C.); (R.A.); (A.F.)
| | - Antonella Fabretto
- Institute for Maternal and Child Health IRCCS Burlo Garofolo, 34137 Trieste, Italy; (D.C.); (R.A.); (A.F.)
| | - Gabriele Stocco
- Institute for Maternal and Child Health IRCCS Burlo Garofolo, 34137 Trieste, Italy; (D.C.); (R.A.); (A.F.)
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy
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Kai M, Tanaka R, Suzuki Y, Goto K, Ohchi Y, Yasuda N, Tatsuta R, Kitano T, Itoh H. UHPLC-MS/MS method for simultaneous quantification of doripenem, meropenem, ciprofloxacin, levofloxacin, pazufloxacin, linezolid, and tedizolid in filtrate during continuous renal replacement therapy. J Clin Lab Anal 2022; 37:e24815. [PMID: 36525363 PMCID: PMC9833962 DOI: 10.1002/jcla.24815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 11/23/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Since severe infections frequently cause acute kidney injury (AKI), continuous renal replacement therapy (CRRT) is often initiated for regulation of inflammatory mediators and renal support. Thus, it is necessary to decide the antibiotic dosage considering the CRRT clearance in addition to residual renal function. Some of the hemofilters used in CRRT are known to adsorb antibiotics, and clearance of antibiotics may differ depending on the adsorptive characteristics of hemofilters. Although assay systems for blood and CRRT filtrate concentrations are required, no method for measuring antibiotics concentrations in filtrate has been reported. We developed a UHPLC-MS/MS method for simultaneous quantification of antibiotics commonly used in ICU, comprising carbapenems [doripenem (DRPM) and meropenem (MEPM)], quinolones [ciprofloxacin (CPFX), levofloxacin (LVFX) and pazufloxacin (PZFX)] and anti-MRSA agents [linezolid (LZD), and tedizolid (TZD)] in CRRT filtrate samples. METHODS Filtrate samples were pretreated by protein precipitation. The analytes were separated with an ACQUITY UHPLC CSH C18 column under a gradient mobile phase consisting of water and acetonitrile containing 0.1% formic acid and 2 mM ammonium formate. RESULTS The method showed good linearity over wide ranges. Within-batch and batch-to-batch accuracy and precision for each drug fulfilled the criteria of the US Food and Drug Administration guidance. The recovery rate was more than 87.20%. Matrix effect ranged from 99.57% to 115.60%. Recovery rate and matrix effect did not differ remarkably between quality control samples at different concentrations. CONCLUSION This is the first report of a simultaneous quantification method of multiple antibiotics in filtrate of CRRT circuit.
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Affiliation(s)
- Makoto Kai
- Department of Clinical PharmacyOita University HospitalYufuJapan
| | - Ryota Tanaka
- Department of Clinical PharmacyOita University HospitalYufuJapan
| | - Yosuke Suzuki
- Department of Clinical PharmacyOita University HospitalYufuJapan,Department of Medication Use Analysis and Clinical ResearchMeiji Pharmaceutical UniversityTokyoJapan
| | - Koji Goto
- Department of Anesthesiology and Intensive Care, Faculty of MedicineOita UniversityYufuJapan
| | - Yoshifumi Ohchi
- Department of Anesthesiology and Intensive Care, Faculty of MedicineOita UniversityYufuJapan
| | - Norihisa Yasuda
- Department of Anesthesiology and Intensive Care, Faculty of MedicineOita UniversityYufuJapan
| | - Ryosuke Tatsuta
- Department of Clinical PharmacyOita University HospitalYufuJapan
| | - Takaaki Kitano
- Department of Anesthesiology and Intensive Care, Faculty of MedicineOita UniversityYufuJapan
| | - Hiroki Itoh
- Department of Clinical PharmacyOita University HospitalYufuJapan
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Raman-based detection of ciprofloxacin and its degradation in pharmaceutical formulations. Talanta 2022; 250:123719. [DOI: 10.1016/j.talanta.2022.123719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 06/25/2022] [Accepted: 06/28/2022] [Indexed: 11/18/2022]
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Thach UD, Nguyen Thi HH, Pham TD, Mai HD, Nhu-Trang TT. Synergetic Effect of Dual Functional Monomers in Molecularly Imprinted Polymer Preparation for Selective Solid Phase Extraction of Ciprofloxacin. Polymers (Basel) 2021; 13:2788. [PMID: 34451328 PMCID: PMC8398442 DOI: 10.3390/polym13162788] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/10/2021] [Accepted: 08/16/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Ciprofloxacin (CIP), an important broad-spectrum fluoroquinolone antibiotic, was often used as a template molecule for the preparation of imprinted materials. In this study, methacrylic acid and 2-vinylpyridine were employed for the first time as dual functional monomers for synthesizing ciprofloxacin imprinted polymers. METHODS The chemical and physicochemical properties of synthesized polymers were characterized using Fourier transform-infrared spectroscopy, thermogravimetric analysis-differential scanning calorimetry, scanning electron microscopy, and nitrogen adsorption-desorption isotherm. The adsorption properties of ciprofloxacin onto synthesized polymers were determined by batch experiments. The extraction performances were studied using the solid phase extraction and HPLC-UV method. RESULTS The molecularly imprinted polymer synthesized with dual functional monomers showed a higher adsorption capacity and selectivity toward the template molecule. The adsorbed amounts of ciprofloxacin onto the imprinted and non-imprinted polymer were 2.40 and 1.45 mg g-1, respectively. Furthermore, the imprinted polymers were employed as a selective adsorbent for the solid phase extraction of ciprofloxacin in aqueous solutions with the recovery of 105% and relative standard deviation of 7.9%. This work provides an alternative approach for designing a new adsorbent with high adsorption capacity and good extraction performance for highly polar template molecules.
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Affiliation(s)
- Ut Dong Thach
- Department of Polymer Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi 100000, Vietnam
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
| | - Hong Hanh Nguyen Thi
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City 700000, Vietnam; (H.H.N.T.); (T.D.P.); (H.D.M.)
| | - Tuan Dung Pham
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City 700000, Vietnam; (H.H.N.T.); (T.D.P.); (H.D.M.)
| | - Hong Dao Mai
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City 700000, Vietnam; (H.H.N.T.); (T.D.P.); (H.D.M.)
| | - Tran-Thi Nhu-Trang
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University (NTTU), Ho Chi Minh City 700000, Vietnam
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Direct infusion nano-electrospray ionization mass spectrometry for therapeutic drug monitoring of ciprofloxacin and its metabolites in human saliva. J Pharm Biomed Anal 2020; 195:113866. [PMID: 33388644 DOI: 10.1016/j.jpba.2020.113866] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 12/17/2020] [Accepted: 12/19/2020] [Indexed: 11/21/2022]
Abstract
A rapid and sensitive method based on direct infusion-nano-electrospray ionization mass spectrometry (DI-nESI-MS) has been developed for the detection and quantification of ciprofloxacin and its metabolites in human saliva. Saliva samples were collected after the oral administration of 500 mg ciprofloxacin tablets. Internal standard (IS), tamoxifen, was added to the collected samples, and then diluted with the ionization solvent, centrifuged and filtered. An aliquot of 4 μL of the filtrate was loaded into a nanospray (NS) capillary. The NS capillary was then fitted into an off-line ion source and the instrument was operated to acquire a two-minute run by applying a voltage of 1000 V (positive-ion detection mode). Quantification of ciprofloxacin relied on the ratio of its peak intensity to the IS peak intensity. The DI-nESI-MS method was validated and provided satisfactory precision with relative standard deviation ranging from 0.39 to 7.48 % and accuracy with relative error ranging from -2.12 to 9.72 %. The calibration curve showed good linearity (r2) > 0.999 over the concentration range of 10-4000 ng/mL. These results verify the effectiveness of the DI-nESI-MS method for monitoring of ciprofloxacin and its metabolites in human saliva samples.
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ElKady EF, Abo-Elwafa AA, Farouk F. Bio-analytical methods for investigating the effect of age, body mass index and gender on the PK/PD ratio of antibiotics. Biomed Chromatogr 2019; 34:e4733. [PMID: 31692011 DOI: 10.1002/bmc.4733] [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: 08/27/2019] [Revised: 10/19/2019] [Accepted: 10/22/2019] [Indexed: 11/09/2022]
Abstract
The effectiveness of antibiotics (ABs) is governed by achieving the adequate pharmacokinetic (PK)/pharmacodynamics (PD) ratio. In this study, fast LC-MS/MS methods were developed and validated for the bioanalysis of cefaclor (CFC), ciprofloxacin (CFC), roxithomycin (RXM) and clindamycin (CLD). Chromatographic separation was performed on a C18 Zorbax-Eclipse Plus (3.5 μm, 100 × 4.6 mm) using isocratic elution. Detection was performed by positive electrospray ionization. The methods were applied for the assessment of PK parameters in volunteers (n = 101, 64 male and 37 female) and the effects of age, body mass index (BMI) and gender were investigated. Good linearity (r2 ≥ 0.99), accuracy (>86%), precision (CV% ≤ 11) and extraction recovery (>83%) were observed for CFC, CFX, RXM and CLD. Application to PK studies revealed that age and BMI affected the Thalf and the AUC of RXM and CLD (p < 0.023). Gender difference affected the critical PK parameters of the four ABs (Thalf (U = 18; P = 0.036) of CFC, the Cmax of CFX (U = 30; P = 0.017), the Thalf (U = 23; P = 0.009) and AUC (U = 26; P = 0.008) of RXM and CLD), respectively. These results highlight the significance of age and BMI variations for RXM and CLD dosing. Furthermore, it indicates that the gender difference may be considered when adjusting the AB dose.
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Affiliation(s)
- Ehab F ElKady
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Ahmed A Abo-Elwafa
- Pharmaceutics and Industrial pharmacy Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Faten Farouk
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
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Hashemi SH, Ziyaadini M, Kaykhaii M, Jamali Keikha A, Naruie N. Separation and determination of ciprofloxacin in seawater, human blood plasma and tablet samples using molecularly imprinted polymer pipette-tip solid phase extraction and its optimization by response surface methodology. J Sep Sci 2019; 43:505-513. [PMID: 31657096 DOI: 10.1002/jssc.201900923] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/21/2019] [Accepted: 10/23/2019] [Indexed: 11/09/2022]
Abstract
By synthesizing a molecular imprinted polymer as an efficient adsorbent, ciprofloxacin was micro-extracted from seawater, human blood plasma and tablet samples by pipette-tip micro solid phase extraction and determined spectrophotometrically. Response surface methodology was applied with central composite design to build a model based on factors affecting on microextraction of ciprofloxacin; including volume of eluent solvent, number of extraction cycles, number of elution cycles, and pH of sample. Other factors that affect extraction efficiency, such as type of eluent solvent, volume of sample, type, and amount of salt were optimized with one-variable-at-a-time method. Under optimum extraction condition, pH of sample solution was 7.0, volume of eluent solvent (methanol) was 200 µL, volume of sample solution was 10 mL, and the number of extraction and elution cycles was five and seven, respectively, amount of Na2 SO4 (as salt) and MIP (as sorbent) were optimized at 150 and 2 mg, respectively. The linear range of the suggested method under optimum extraction factors was 5-150 µg/L with a limit of detection of 1.50 µg/L for the analyte. Reproducibility of the method (as relative standard deviation) was better than 7%.
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Affiliation(s)
- Sayyed Hossein Hashemi
- Department of Marine Chemistry, Faculty of Marine Science, Chabahar Maritime University, Chabahar, Iran
| | - Morteza Ziyaadini
- Department of Marine Chemistry, Faculty of Marine Science, Chabahar Maritime University, Chabahar, Iran
| | - Massoud Kaykhaii
- Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan, Iran
| | - Ahmad Jamali Keikha
- Department of Mechanical Engineering, Faculty of Marine Engineering, Chabahar Maritime University, Chabahar, Iran
| | - Nasrin Naruie
- Department of Marine Chemistry, Faculty of Marine Science, Chabahar Maritime University, Chabahar, Iran
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Facchin A, Bui S, Leroux S, Nacka F, Koehl B, Maksoud E, Fayon M, Jacqz-Aigrain E. Variability of ciprofloxacin pharmacokinetics in children: impact on dose range in sickle cell patients. J Antimicrob Chemother 2018; 73:3423-3429. [DOI: 10.1093/jac/dky328] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 07/19/2018] [Indexed: 11/14/2022] Open
Affiliation(s)
- A Facchin
- Département de Pharmacologie Pédiatrique et pharmacogénétique, CHU Robert Debré APHP, Paris, France
- Ecole Doctorale MTCI, Université Paris Descartes, Paris, France
| | - S Bui
- Département de Pédiatrie, CIC1401, CHU de Bordeaux, Bordeaux, France
| | - S Leroux
- Département de Pharmacologie Pédiatrique et pharmacogénétique, CHU Robert Debré APHP, Paris, France
| | - F Nacka
- Département de Pédiatrie, CIC1401, CHU de Bordeaux, Bordeaux, France
| | - B Koehl
- Service d’hématologie, Centre de référence de la drépanocytose, Hôpital Robert Debré, APHP, Paris, France
- Département de Pédiatrie, Hôpital Robert Debré, APHP, Paris, France
| | - E Maksoud
- Département de Pharmacologie Pédiatrique et pharmacogénétique, CHU Robert Debré APHP, Paris, France
| | - M Fayon
- Département de Pédiatrie, CIC1401, CHU de Bordeaux, Bordeaux, France
| | - E Jacqz-Aigrain
- Département de Pharmacologie Pédiatrique et pharmacogénétique, CHU Robert Debré APHP, Paris, France
- Université Paris Diderot, Sorbonne Paris-Cité, Paris, France
- Centre d’investigation clinique, CIC1426, INSERM, Paris, France
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Dong Q, Shi HY, Kou C, Huang X, Shen AD, Zhao W. A microscale HPLC-UV method for the determination of latamoxef in plasma: An adapted method for therapeutic drug monitoring in neonates. Biomed Chromatogr 2018; 32:e4243. [PMID: 29573350 DOI: 10.1002/bmc.4243] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 02/27/2018] [Accepted: 03/09/2018] [Indexed: 11/07/2022]
Abstract
Latamoxef, a broad-spectrum anti-bacterial agent of the β-lactam antibiotics, is used off-label in treatment of neonatal sepsis. Large inter-individual variability and uncertainty of treatment make therapeutic drug monitoring (TDM) useful to optimize antimicrobial therapy. The objective of this study was to develop and validate a simple, selective and reliable HPLC method for the determination of latamoxef in small volumes of plasma, which could be used in neonatal TDM. After a simple protein precipitation, analytes were separated with liquid chromatography and quantified by UV detection, with tinidazole as the internal standard. The calibration range was linear from 3.0 to 60.0 μg/mL. Intra- and inter-day precisions were < 7.2%. The acceptance criteria of accuracy (between 85 and 115%, 120% for lower limit of quantification) were met in all cases. A plasma volume of 50 μL was required to achieve the limit of quantification of 3.0 μg/mL. The TDM results showed a large variability in trough concentrations. A large number of patients were underdosed, highlighting the unmet need for TDM to optimize latamoxef therapy in neonates.
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Affiliation(s)
- Qian Dong
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - Hai-Yan Shi
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Shandong University, Jinan, China.,Department of Pharmacy, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Chen Kou
- Department of Neonatology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Xin Huang
- Department of Pharmacy, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - A-Dong Shen
- Key Laboratory of Major Diseases in Children and National Key Discipline of Pediatrics (Capital Medical University), Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Wei Zhao
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Shandong University, Jinan, China.,Department of Pharmacy, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
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Ferrone V, Carlucci M, Cotellese R, Raimondi P, Cichella A, Marco LD, Carlucci G. Development and validation of a fast micro-extraction by packed sorbent UHPLC-PDA method for the simultaneous determination of linezolid and ciprofloxacin in human plasma from patients with hospital-acquired pneumonia. Talanta 2016; 164:64-68. [PMID: 28107984 DOI: 10.1016/j.talanta.2016.11.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 11/07/2016] [Accepted: 11/08/2016] [Indexed: 10/20/2022]
Abstract
An ultra high-performance liquid chromatographic (UHPLC) method with PDA detection was developed and validated for the simultaneous quantification of linezolid and ciprofloxacin in human plasma and applied in hospital acquired pneumonia patients (HAP). The method uses a semi-automated microextraction by packed sorbent for sample preparation. All parameters in the extraction step (pH, sample volume, sample dilution and number of aspiration - ejection cycles) and in the desorption step (percentage of acetonitrile in the solvent of elution and number of aspirations of elution solvent through the device) were statistically significant when the recovery was used as response. The method showed good linearity with correlation coefficients, r2>0.9995 for the two drugs, as well as high precision (RSD%<9.77% in each case), accuracy ranged from -6.2% to +8.2. The limit of quantification of the two drugs was established at 0.01 and 0.02μg/mL for ciprofloxacin and linezolid, respectively. Linezolid, ciprofloxacin and internal standard were extracted from human plasma with a mean recovery ranging from 92.4% to 97.4%. During validation, the concentrations of linezolid and ciprofloxacin were found to be stable after 3 freeze-thaw cycles and for at least 24h after extraction. This method will subsequently be used to quantify the drugs dosage in patients with HAP to establish if the dosage regimen given is sufficient to eradicate the infection at the target site.
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Affiliation(s)
- Vincenzo Ferrone
- Dipartimento di Farmacia, Università degli Studi "G. d'Annunzio" Chieti-Pescara, via dei Vestini, 66100 Chieti, Italy
| | - Maura Carlucci
- Dipartimento di Scienze Mediche Orali e Biotecnologiche, Università degli Studi "G. d'Annunzio" Chieti-Pescara, via dei Vestini, 66100 Chieti, Italy
| | - Roberto Cotellese
- Dipartimento di Scienze Mediche Orali e Biotecnologiche, Università degli Studi "G. d'Annunzio" Chieti-Pescara, via dei Vestini, 66100 Chieti, Italy
| | - Paolo Raimondi
- Dipartimento di Scienze Mediche Orali e Biotecnologiche, Università degli Studi "G. d'Annunzio" Chieti-Pescara, via dei Vestini, 66100 Chieti, Italy
| | - Annadomenica Cichella
- Dipartimento di Scienze Mediche Orali e Biotecnologiche, Università degli Studi "G. d'Annunzio" Chieti-Pescara, via dei Vestini, 66100 Chieti, Italy
| | - Lorenzo Di Marco
- Dipartimento di Farmacia, Università degli Studi "G. d'Annunzio" Chieti-Pescara, via dei Vestini, 66100 Chieti, Italy
| | - Giuseppe Carlucci
- Dipartimento di Farmacia, Università degli Studi "G. d'Annunzio" Chieti-Pescara, via dei Vestini, 66100 Chieti, Italy.
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Zander J, Maier B, Zoller M, Döbbeler G, Frey L, Teupser D, Vogeser M. Effects of biobanking conditions on six antibiotic substances in human serum assessed by a novel evaluation protocol. Clin Chem Lab Med 2016; 54:265-74. [PMID: 26351928 DOI: 10.1515/cclm-2015-0325] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 06/19/2015] [Indexed: 11/15/2022]
Abstract
BACKGROUND Although therapeutic drug monitoring (TDM) for antibiotics in critically ill patients is recommended by expert panels, no commercial tests are available for most antibiotics. Therefore, we previously developed a multi-analyte method for the quantification of piperacillin, tazobactam, cefepime, meropenem, ciprofloxacin and linezolid in serum. However, limited stability data were available, and the relevant studies did not address the coefficients of variation of the methods applied, which may be important for verifying the storage dependency of the observed effects. Here we aimed to evaluate the storage effects of antibiotics by applying a novel evaluation protocol. METHODS Serum-based test samples were aliquoted and stored at room temperature, 4 °C, -20 °C or -80 °C for up to 180 days. Using an innovative evaluation protocol (considering the coefficient of variation, p-value, and criterion of monotony of observed changes), we assessed whether relevant changes (defined as ≥15% in comparison with baseline) were storage dependent (defined as substantial changes). RESULTS Storage at -80 °C for up to 180 days did not lead to substantial changes for any analyte. In contrast, storage at -20 °C induced substantial decreases after ≥7 days for piperacillin, tazobactam, cefepime and meropenem; after 90 days at -20 °C, only ≤23% of the initial concentrations were found for these parameters. No substantial changes were observed for linezolid and ciprofloxacin at any storage condition. All of the observed substantial changes were monotonic decreases. CONCLUSIONS We recommend a storage temperature of -80 °C for β-lactam antibiotics. The applied evaluation protocol yielded conclusive results and may be generally useful for stability studies.
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Leroux S, Turner MA, Guellec CBL, Hill H, van den Anker JN, Kearns GL, Jacqz-Aigrain E, Zhao W. Pharmacokinetic Studies in Neonates: The Utility of an Opportunistic Sampling Design. Clin Pharmacokinet 2016; 54:1273-85. [PMID: 26063050 DOI: 10.1007/s40262-015-0291-1] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE The use of an opportunistic (also called scavenged) sampling strategy in a prospective pharmacokinetic study combined with population pharmacokinetic modelling has been proposed as an alternative strategy to conventional methods for accomplishing pharmacokinetic studies in neonates. However, the reliability of this approach in this particular paediatric population has not been evaluated. The objective of the present study was to evaluate the performance of an opportunistic sampling strategy for a population pharmacokinetic estimation, as well as dose prediction, and compare this strategy with a predetermined pharmacokinetic sampling approach. METHODS Three population pharmacokinetic models were derived for ciprofloxacin from opportunistic blood samples (SC model), predetermined (i.e. scheduled) samples (TR model) and all samples (full model used to previously characterize ciprofloxacin pharmacokinetics), using NONMEM software. The predictive performance of developed models was evaluated in an independent group of patients. RESULTS Pharmacokinetic data from 60 newborns were obtained with a total of 430 samples available for analysis; 265 collected at predetermined times and 165 that were scavenged from those obtained as part of clinical care. All datasets were fit using a two-compartment model with first-order elimination. The SC model could identify the most significant covariates and provided reasonable estimates of population pharmacokinetic parameters (clearance and steady-state volume of distribution) compared with the TR and full models. Their predictive performances were further confirmed in an external validation by Bayesian estimation, and showed similar results. Monte Carlo simulation based on area under the concentration-time curve from zero to 24 h (AUC24)/minimum inhibitory concentration (MIC) using either the SC or the TR model gave similar dose prediction for ciprofloxacin. CONCLUSION Blood samples scavenged in the course of caring for neonates can be used to estimate ciprofloxacin pharmacokinetic parameters and therapeutic dose requirements.
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Affiliation(s)
- Stéphanie Leroux
- Sino-French Pediatric Research Center, Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, 250012, Jinan, China
- Department of Pediatric Pharmacology and Pharmacogenetics, Hôpital Robert Debré, APHP, Paris, France
- EA7323, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Department of Neonatology, CHU de Rennes, Rennes, France
| | - Mark A Turner
- Department of Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
- Neonatal Unit, Liverpool Women's Hospital, Liverpool, UK
| | | | - Helen Hill
- Department of Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
- Neonatal Unit, Liverpool Women's Hospital, Liverpool, UK
| | - Johannes N van den Anker
- Intensive Care, Erasmus MC - Sophia Children's Hospital, Rotterdam, The Netherlands
- Division of Pediatric Clinical Pharmacology, Children's National Medical Center, Washington, DC, USA
- Departments of Pediatrics, Pharmacology and Physiology, George Washington University, School of Medicine and Health Sciences, Washington, DC, USA
- Department of Paediatric Pharmacology, University Children's Hospital Basel, Basel, Switzerland
| | - Gregory L Kearns
- Division of Clinical Pharmacology and Therapeutic Innovation, the Children's Mercy Hospital, Kansas City, MO, USA
- Department of Pediatrics, University of Missouri-Kansas City, Kansas City, MO, USA
| | - Evelyne Jacqz-Aigrain
- Sino-French Pediatric Research Center, Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, 250012, Jinan, China
- Department of Pediatric Pharmacology and Pharmacogenetics, Hôpital Robert Debré, APHP, Paris, France
- EA7323, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Clinical Investigation Center CIC1426, INSERM, Paris, France
| | - Wei Zhao
- Sino-French Pediatric Research Center, Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, 250012, Jinan, China.
- Department of Pediatric Pharmacology and Pharmacogenetics, Hôpital Robert Debré, APHP, Paris, France.
- EA7323, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.
- Clinical Investigation Center CIC1426, INSERM, Paris, France.
- Department of Pharmacy, Qianfoshan Hospital Affiliated to Shandong University, Jian, China.
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13
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[Dosing regimens of antibiotics in neonates: Variations in clinical practice and what should be done?]. Arch Pediatr 2016; 23:966-73. [PMID: 27451383 DOI: 10.1016/j.arcped.2016.06.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 03/31/2016] [Accepted: 06/03/2016] [Indexed: 01/04/2023]
Abstract
There is wide variation in neonatal dosages of antibiotics in clinical practice, both nationally and internationally. This reflects the lack of evaluation of drugs in this therapeutic class, although widely prescribed. Given this situation, optimization of antibiotic prescription is required to ensure efficacy and safety of neonatal treatment and reduce microbial resistance. Rational prescription should be based on the knowledge of developmental pharmacokinetics and pharmacodynamics. Rigorous studies, conducted in collaboration between neonatologists and pharmacologists, are essential to develop and validate evidence-based neonatal dosage regimens.
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Bourgeois T, Delezoide AL, Zhao W, Guimiot F, Adle-Biassette H, Durand E, Ringot M, Gallego J, Storme T, Le Guellec C, Kassaï B, Turner MA, Jacqz-Aigrain E, Matrot B. Safety study of Ciprofloxacin in newborn mice. Regul Toxicol Pharmacol 2016; 74:161-9. [DOI: 10.1016/j.yrtph.2015.11.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 11/05/2015] [Indexed: 01/08/2023]
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Ma Y, Tanaka N, Vaniya A, Kind T, Fiehn O. Ultrafast Polyphenol Metabolomics of Red Wines Using MicroLC-MS/MS. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:505-12. [PMID: 26698107 PMCID: PMC8168920 DOI: 10.1021/acs.jafc.5b04890] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The taste and quality of red wine are determined by its highly complex mixture of polyphenols and many other metabolites. No single method can fully cover the full metabolome, but even for polyphenols and related compounds, current methods proved inadequate. We optimized liquid chromatography resolution and sensitivity using 1 mm i.d. columns with microLC pumps and compared data-dependent to data-independent (SWATH) MS/MS acquisitions. A high-throughput microLC-MS method was developed with a 4 min gradient at 0.05 mL/min flow rate on a Kinetex C18 column and Sciex TripleTOF mass spectrometry. Using the novel software MS-DIAL, we structurally annotated 264 compounds including 165 polyphenols in six commercial red wines by accurate mass MS/MS matching. As proof of concept, multivariate statistics revealed the difference in the metabolite profiles of the six red wines, and regression analysis linked the polyphenol contents to the taste of the red wines.
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Affiliation(s)
- Yan Ma
- UC Davis Genome Center – Metabolomics, University of California, Davis, California 95616, United States
| | - Nobuo Tanaka
- UC Davis Genome Center – Metabolomics, University of California, Davis, California 95616, United States
- GL Sciences Inc., Iruma, Saitama 358-0032, Japan
| | - Arpana Vaniya
- UC Davis Genome Center – Metabolomics, University of California, Davis, California 95616, United States
| | - Tobias Kind
- UC Davis Genome Center – Metabolomics, University of California, Davis, California 95616, United States
| | - Oliver Fiehn
- UC Davis Genome Center – Metabolomics, University of California, Davis, California 95616, United States
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Corresponding Author: (O.F.) . Phone: (530) 754-8258. Fax: (530) 754-9658
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16
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Determination of Ciprofloxacin in Human Serum by Online Heart-Cutting Liquid Chromatography. Chromatographia 2016. [DOI: 10.1007/s10337-015-3013-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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KuKanich K, KuKanich B, Guess S, Heinrich E. Effect of Sucralfate on the Relative Bioavailability of Enrofloxacin and Ciprofloxacin in Healthy Fed Dogs. J Vet Intern Med 2015; 30:108-15. [PMID: 26651022 PMCID: PMC4913628 DOI: 10.1111/jvim.13796] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 09/14/2015] [Accepted: 10/16/2015] [Indexed: 11/29/2022] Open
Abstract
Background Sucralfate impairs absorption of ciprofloxacin and other fluoroquinolones in humans, but no sucralfate–fluoroquinolone interaction has been reported in dogs. Veterinary formularies recommend avoiding concurrent administration of these medications, which might impact compliance, therapeutic success, and resistance selection from fluoroquinolones. Objectives To determine whether a drug interaction exists when sucralfate is administered to fed dogs concurrently with ciprofloxacin or enrofloxacin, and whether a 2 hour delay between fluoroquinolone and sucralfate affects fluoroquinolone absorption. Animals Five healthy Greyhounds housed in a research colony. Methods This was a randomized crossover study. Treatments included oral ciprofloxacin (C) or oral enrofloxacin (E) alone, each fluoroquinolone concurrently with an oral suspension of sucralfate (CS, ES), and sucralfate suspension 2 hours after each fluoroquinolone (C2S, E2S). Fluoroquinolone concentrations were evaluated using liquid chromatography with mass spectrometry. Results Drug exposure of ciprofloxacin was highly variable (AUC 5.52–22.47 h μg/mL) compared to enrofloxacin (AUC 3.86–7.50 h μg/mL). The mean relative bioavailability for ciprofloxacin and concurrent sucralfate was 48% (range 8–143%) compared to ciprofloxacin alone. Relative bioavailability of ciprofloxacin improved to 87% (range 37–333%) when sucralfate was delayed by 2 hours. By contrast, relative bioavailability for enrofloxacin and concurrent sucralfate was 104% (94–115%). Conclusions and Clinical Importance A possible clinically relevant drug interaction for the relative bioavailability of ciprofloxacin with sucralfate was found. No significant difference in bioavailability was documented for enrofloxacin with sucralfate. Further research is warranted in fasted dogs and clinical cases requiring enrofloxacin or other approved fluoroquinolones in combination with sucralfate.
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Affiliation(s)
- K KuKanich
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS
| | - B KuKanich
- Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS
| | - S Guess
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS
| | - E Heinrich
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS
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Population pharmacokinetics of ciprofloxacin in neonates and young infants less than three months of age. Antimicrob Agents Chemother 2014; 58:6572-80. [PMID: 25155587 DOI: 10.1128/aac.03568-14] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Ciprofloxacin is used in neonates with suspected or documented Gram-negative serious infections. Currently, its use is off-label partly because of lack of pharmacokinetic studies. Within the FP7 EU project TINN (Treat Infection in NeoNates), our aim was to evaluate the population pharmacokinetics of ciprofloxacin in neonates and young infants <3 months of age and define the appropriate dose in order to optimize ciprofloxacin treatment in this vulnerable population. Blood samples were collected from neonates treated with ciprofloxacin and concentrations were quantified by high-pressure liquid chromatography-mass spectrometry. Population pharmacokinetic analysis was performed using NONMEM software. The data from 60 newborn infants (postmenstrual age [PMA] range, 24.9 to 47.9 weeks) were available for population pharmacokinetic analysis. A two-compartment model with first-order elimination showed the best fit with the data. A covariate analysis identified that gestational age, postnatal age, current weight, serum creatinine concentration, and use of inotropes had a significant impact on ciprofloxacin pharmacokinetics. Monte Carlo simulation demonstrated that 90% of hypothetical newborns with a PMA of <34 weeks treated with 7.5 mg/kg twice daily and 84% of newborns with a PMA ≥34 weeks and young infants receiving 12.5 mg/kg twice daily would reach the AUC/MIC target of 125, using the standard EUCAST MIC susceptibility breakpoint of 0.5 mg/liter. The associated risks of overdose for the proposed dosing regimen were <8%. The population pharmacokinetics of ciprofloxacin was evaluated in neonates and young infants <3 months old, and a dosing regimen was established based on simulation.
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TINN (TREAT INFECTIONS IN NEONATES): AN FP7 PROJECT. Clin Ther 2013. [DOI: 10.1016/j.clinthera.2013.07.366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mahrouse MA, Elkady EF. Validated Spectrophotometric Methods for the Simultaneous Determination of Ciprofloxacin Hydrochloride and Metronidazole in Tablets. Chem Pharm Bull (Tokyo) 2011; 59:1485-93. [DOI: 10.1248/cpb.59.1485] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Ehab Farouk Elkady
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University
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