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da Silva LC, Grando AP, de Baco LS, Hahn RZ, Ferreira Filho AF, Brucker N, Linden R, Antunes MV. Evaluation of dried blood spots as an alternative sampling strategy for 5-fluorouracil monitoring: From method development to clinical application. J Pharm Biomed Anal 2023; 235:115539. [PMID: 37517245 DOI: 10.1016/j.jpba.2023.115539] [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: 03/25/2023] [Revised: 06/01/2023] [Accepted: 06/18/2023] [Indexed: 08/01/2023]
Abstract
Therapeutic drug monitoring (TDM) of 5-Fluorouracil (5-FU) is strongly recommended because of its large inter-individual pharmacokinetic variability, narrow therapeutic window, and incidence of toxicity. However, there are several factors that limit the application of TDM in clinical settings. Considering the intrinsic advantages of dried microsamples, such as minimally invasive sampling, analyte stability, and cost-effective logistics, this study aimed to develop a method for the determination of 5-FU in dried blood spots (DBS) using ultra-high liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) and to evaluate its clinical application. Sample preparation was based on an aqueous extraction followed by protein precipitation. Separation was performed in an Acquity UPLC® HSS C18 (150 ×2.1 mm, 1.8 µm), and the mobile phases were water and acetonitrile with 0.5% acetic acid. The total run time was 5.5 min. The method was linear from 100 to 2000 ng/mL, precise (maximum CV% of 7.5%), and accurate (98.3-115.4%). The average recovery was 70%. Blood hematocrit had a minimal impact on the assay. DBS samples were stable for 21 days at 4, 25, and 45 °C. A total of 40 paired samples of plasma, capillary DBS, and venous DBS were analyzed. Median 5-FU concentrations were 444.7, 637.0, and 499.7 ng/mL for plasma, capillary DBS, and venous DBS, respectively. Capillary and plasma concentrations were significantly correlated (r > 0.90), but there was a lack of agreement between the methods, as capillary DBS levels were on average 146% of plasma. Venous DBS corresponded to 110% of the measured plasma concentrations, with a strong correlation (r > 0.97) and agreement between the methods. Our study is the first to report the use of DBS samples to quantify 5-FU. Further studies are needed to establish whether capillary samples can replace plasma.
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Affiliation(s)
- Laura C da Silva
- Graduate Program on Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil; Toxicological Analysis Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo, RS, Brazil.
| | - Ana P Grando
- Toxicological Analysis Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo, RS, Brazil
| | | | - Roberta Z Hahn
- Toxicological Analysis Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo, RS, Brazil
| | | | | | - Rafael Linden
- Graduate Program on Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil; Toxicological Analysis Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo, RS, Brazil
| | - Marina V Antunes
- Graduate Program on Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil; Toxicological Analysis Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo, RS, Brazil
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2
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Ishii H, Shibuya M, Kusano K, Sone Y, Kamiya T, Wakuno A, Ito H, Miyata K, Yamada M, Leung GNW. Segmental analysis and long-term monitoring of vadadustat in equine hair for the purpose of doping control. J Anal Toxicol 2023; 47:623-631. [PMID: 37632695 DOI: 10.1093/jat/bkad057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/07/2023] [Accepted: 08/14/2023] [Indexed: 08/28/2023] Open
Abstract
Vadadustat is a newly launched hypoxia-inducible factor stabilizer with anti-anemia and erythropoietic effects; however, its use in horses is expressly forbidden in both racing and equestrian competitions. Following our previous report on the pharmacokinetic study of vadadustat in horse plasma and urine, a long-term longitudinal analysis of vadadustat in horse hair after nasoesophageal administration (3 g/day for 3 days) to three thoroughbred mares is described in this study. Our main objective is to further extend the detection period of vadadustat for the purpose of doping control. Three bunches of mane hair from each horse were collected at 0 (pre), 1, 2, 3 and 6 month(s) post-administration. These hair samples were each cut into 2-cm segments and pulverized after decontamination of hair samples. The analyte in the powdered hair samples was extracted with liquid-liquid extraction followed by further purification by solid-phase extraction with strong anion exchange columns. The amount of vadadustat incorporated into the hair was quantified with a newly developed and validated method using liquid chromatography-high-resolution mass spectrometry. Our results show that vadadustat was confirmed in all post-administration hair samples, but its metabolites were not present. Thus, the detection window for vadadustat could be successfully extended up to 6 months post-administration. Interestingly, the 2-cm segmental analysis revealed that the tip of the drug band in the hair shifted along with the hair shafts in correspondence with the average hair growth rate (∼2.5 cm/month) but gradually diffused more widely from 2 cm at 1 month post-administration to up to 14 cm at 6 months post-administration. However, the loss in the total amount of vadadustat in hair over time was observed to most likely be due to the degradation of vadadustat. These findings will be useful for the control of abuse and/or misuse of vadadustat and the interpretation of positive doping cases.
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Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| | - Kanichi Kusano
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo 105-0003, Japan
| | - Yu Sone
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo 105-0003, Japan
| | - Takahiro Kamiya
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba 270-1431, Japan
| | - Ai Wakuno
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba 270-1431, Japan
| | - Hideki Ito
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba 270-1431, Japan
| | - Kenji Miyata
- Equine Veterinary Clinic, JRA Equestrian Park Utsunomiya Office, 321-4 Tokamicho, Utsunomiya, Tochigi 320-0856, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
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3
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Hirasawa T, Kikuchi M, Takasaki S, Kumondai M, Sato Y, Sato T, Imoto E, Hayakawa Y, Maekawa M, Mano N. High throughput LC/ESI-MS/MS method for simultaneous analysis of 20 oral molecular-targeted anticancer drugs and the active metabolite of sunitinib in human plasma. Heliyon 2023; 9:e16926. [PMID: 37484337 PMCID: PMC10360929 DOI: 10.1016/j.heliyon.2023.e16926] [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: 04/14/2023] [Revised: 05/20/2023] [Accepted: 06/01/2023] [Indexed: 07/25/2023] Open
Abstract
Many types of oral molecular-targeted anticancer drugs are clinically used in cancer genomic medicine. Combinations of multiple molecular-targeted anticancer drugs are also being investigated, expecting to prolong the survival of patients with cancer. Therapeutic drug monitoring of oral molecular-targeted drugs is important to ensure efficacy and safety. A liquid chromatography/electrospray ionization-tandem mass spectrometry (LC/ESI-MS/MS) has been used for simultaneous determination of these drugs in human plasma. However, the sensitivity of mass spectrometers and differences in the therapeutic range of drugs have rendered the development of simultaneous LC/ESI-MS/MS methods difficult. In this study, a simultaneous quantitative method for 20 oral molecular-targeted anticancer drugs and the active metabolite of sunitinib was developed based on the results of linear range shifts of the calibration curves using four ion abundance adjustment techniques (collision energy defects, in-source collision-induced dissociation, secondary product ion selected reaction monitoring, and isotopologue selected reaction monitoring). The saturation of the detector for the seven analytes was resolved by incorporating optimal ion abundance adjustment techniques. Furthermore, the reproducibility of this method was confirmed in validation tests, and plasma from patients was measured by this method to demonstrate its usefulness in actual clinical practice. This analytical method is expected to make a substantial contribution to the promotion of personalized medicine in the future.
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Affiliation(s)
- Tensei Hirasawa
- Faculty of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Masafumi Kikuchi
- Faculty of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan
| | - Shinya Takasaki
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan
| | - Masaki Kumondai
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan
| | - Yu Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan
| | - Toshihiro Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan
| | - Eishi Imoto
- Shimadzu Corporation, 1 Nishinokyo Kuwabara-cho, Nakagyo-ku, Kyoto 604-8511, Japan
| | - Yoshihiro Hayakawa
- Shimadzu Corporation, 1 Nishinokyo Kuwabara-cho, Nakagyo-ku, Kyoto 604-8511, Japan
| | - Masamitsu Maekawa
- Faculty of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan
| | - Nariyasu Mano
- Faculty of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan
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Ishii H, Shibuya M, Kusano K, Sone Y, Kamiya T, Wakuno A, Ito H, Miyata K, Sato F, Kuroda T, Yamada M, Leung GNW. Generic approach for the discovery of drug metabolites in horses based on data-dependent acquisition by liquid chromatography high-resolution mass spectrometry and its applications to pharmacokinetic study of daprodustat. Anal Bioanal Chem 2022; 414:8125-8142. [PMID: 36181513 DOI: 10.1007/s00216-022-04347-2] [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: 07/19/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 11/27/2022]
Abstract
In drug metabolism studies in horses, non-targeted analysis by means of liquid chromatography coupled with high-resolution mass spectrometry with data-dependent acquisition (DDA) has recently become increasingly popular for rapid identification of potential biomarkers in post-administration biological samples. However, the most commonly encountered problem is the presence of highly abundant interfering components that co-elute with the target substances, especially if the concentrations of these substances are relatively low. In this study, we evaluated the possibility of expanding DDA coverage for the identification of drug metabolites by applying intelligently generated exclusion lists (ELs) consisting of a set of chemical backgrounds and endogenous substances. Daprodustat was used as a model compound because of its relatively lower administration dose (100 mg) compared to other hypoxia-inducible factor stabilizers and the high demand in the detection sensitivity of its metabolites at the anticipated lower concentrations. It was found that the entire DDA process could efficiently identify both major and minor metabolites (flagged beyond the pre-set DDA threshold) in a single run after applying the ELs to exclude 67.7-99.0% of the interfering peaks, resulting in a much higher chance of triggering DDA to cover the analytes of interest. This approach successfully identified 21 metabolites of daprodustat and then established the metabolic pathway. It was concluded that the use of this generic intelligent "DDA + EL" approach for non-targeted analysis is a powerful tool for the discovery of unknown metabolites, even in complex plasma and urine matrices in the context of doping control.
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Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan.
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Kanichi Kusano
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Yu Sone
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Takahiro Kamiya
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba, 270-1431, Japan
| | - Ai Wakuno
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba, 270-1431, Japan
| | - Hideki Ito
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba, 270-1431, Japan
| | - Kenji Miyata
- JRA Equestrian Park Utsunomiya Office, 321-4 Tokamicho, Utsunomiya, Tochigi, 320-0856, Japan
| | - Fumio Sato
- Clinical Veterinary Medicine Division, Equine Research Institute, Japan Racing Association, 1400-4, Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Taisuke Kuroda
- Clinical Veterinary Medicine Division, Equine Research Institute, Japan Racing Association, 1400-4, Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
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5
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Ishii H, Shibuya M, Kusano K, Sone Y, Kamiya T, Wakuno A, Ito H, Miyata K, Sato F, Kuroda T, Yamada M, Leung GNW. Pharmacokinetic Study of Vadadustat and High-Resolution Mass Spectrometric Characterization of its Novel Metabolites in Equines for the Purpose of Doping Control. Curr Drug Metab 2022; 23:850-865. [PMID: 36017833 DOI: 10.2174/1389200223666220825093945] [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: 04/08/2022] [Revised: 06/08/2022] [Accepted: 06/17/2022] [Indexed: 01/05/2023]
Abstract
BACKGROUND Vadadustat, a hypoxia-inducible factor prolyl hydroxylase (HIF-PHD) inhibitor, is a substance which carries a lifetime ban in both horse racing and equestrian competition. A comprehensive metabolic study of vadadustat in horses has not been previously reported. OBJECTIVE Metabolism and elimination profiles of vadadustat in equine plasma and urine were studied for the purpose of doping control. METHODS A nasoesophageal administration of vadadustat (3 g/day for 3 days) was conducted on three thoroughbred mares. Potential metabolites were comprehensively detected by differential analysis of full-scan mass spectral data obtained from both in vitro studies with liver homogenates and post-administration samples using liquid chromatography high-resolution mass spectrometry. The identities of metabolites were further substantiated by product ion scans. Quantification methods were developed and validated for the establishment of the excretion profiles of the total vadadustat (free and conjugates) in plasma and urine. RESULTS A total of 23 in vivo and 14 in vitro metabolites (12 in common) were identified after comprehensive analysis. We found that vadadustat was mainly excreted into urine as the parent drug together with some minor conjugated metabolites. The elimination profiles of total vadadustat in post-administration plasma and urine were successfully established by using quantification methods equipped with alkaline hydrolysis for cleavage of conjugates such as methylated vadadustat, vadadustat glucuronide, and vadadustat glucoside. CONCLUSION Based on our study, for effective control of the misuse or abuse of vadadustat in horses, total vadadustat could successfully be detected for up to two weeks after administration in plasma and urine.
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Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, Zip 320-0851, Japan.,Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Zip 980-8574, Japan
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, Zip 320-0851, Japan
| | - Kanichi Kusano
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo, Zip 105-0003, Japan
| | - Yu Sone
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo, Zip 105-0003, Japan
| | - Takahiro Kamiya
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba, Zip 270-1431, Japan
| | - Ai Wakuno
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba, Zip 270-1431, Japan
| | - Hideki Ito
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba, Zip 270-1431, Japan
| | - Kenji Miyata
- JRA Equestrian Park Utsunomiya Office, 321-4 Tokamicho, Utsunomiya, Tochigi, Zip 320-0856, Japan
| | - Fumio Sato
- Clinical Veterinary Medicine Division, Equine Research Institute, Japan Racing Association, 1400-4, Shiba, Shimotsuke, Tochigi, Zip 329-0412, Japan
| | - Taisuke Kuroda
- Clinical Veterinary Medicine Division, Equine Research Institute, Japan Racing Association, 1400-4, Shiba, Shimotsuke, Tochigi, Zip 329-0412, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, Zip 320-0851, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, Zip 320-0851, Japan
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Maekawa M, Mano N. Cutting edge LC‐MS/MS applications in clinical mass spectrometry ‐Focusing on analysis of drugs and metabolites. Biomed Chromatogr 2022; 36:e5347. [DOI: 10.1002/bmc.5347] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 01/16/2022] [Accepted: 01/18/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Masamitsu Maekawa
- Department of Pharmaceutical Sciences Tohoku University Hospital Sendai Miyagi Japan
| | - Nariyasu Mano
- Department of Pharmaceutical Sciences Tohoku University Hospital Sendai Miyagi Japan
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Ishii H, Leung GNW, Yamashita S, Nagata SI, Kushiro A, Sakai S, Toju K, Okada J, Kawasaki K, Kusano K, Kijima-Suda I. Comprehensive metabolic study of nicotine in equine plasma and urine using liquid chromatography/high-resolution mass spectrometry for the identification of unique biomarkers for doping control. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1190:123100. [PMID: 35032890 DOI: 10.1016/j.jchromb.2022.123100] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/07/2021] [Accepted: 01/03/2022] [Indexed: 10/19/2022]
Abstract
Nicotine is classified as a stimulant, and its use is banned in horse racing and equestrian sports by the International Federation of Horseracing Authorities and the Fédération Équestre Internationale, respectively. Because nicotine is a major alkaloid of tobacco leaves, there is a potential risk that doping control samples may be contaminated by tobacco cigarettes or smoke during sample collection. In order to differentiate the genuine doping and sample contamination with tobacco leaves, it is necessary to monitor unique metabolites as biomarkers for nicotine administration and intake. However, little is known about the metabolic fate of nicotine in horses. This is the first report of comprehensive metabolism study of nicotine in horses. Using liquid chromatography/electrospray ionization high-resolution mass spectrometry, we identified a total of 17 metabolites, including one novel horse-specific metabolite (i.e., 4-hydroxy-4-(3-pyridyl)-N-methylbutanamide), in post-administration urine samples after nasoesophageal administration of nicotine to three thoroughbred mares; eight of these compounds were confirmed based on reference standards. Among these metabolites, N-hydroxymethylnorcotinine was the major urinary metabolite in equine, but it could only be tentatively identified by mass spectral interpretation due to the lack of reference material. In addition, we developed simultaneous quantification methods for the eight target analytes in plasma and urine, and applied them to post-administration samples to establish elimination profiles of nicotine and its metabolites. The quantification results revealed that trans-3'-hydroxycotinine could be quantified for the longest period in both plasma (72 h post-administration) and urine (96 h post-administration). Therefore, this metabolite is the most appropriate monitoring target for nicotine exposure for the purpose of doping control due to its long detection times and the availability of its reference material. Further, we identified trans-3'-hydroxycotinine as a unique biomarker allowing differentiation between nicotine administration and sample contamination with tobacco leaves.
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Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan; Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan.
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| | - Shozo Yamashita
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| | - Shun-Ichi Nagata
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| | - Asuka Kushiro
- Equine Research Institute, Research Planning & Coordination Division, JRA, 1400-4, Shiba, Shimotsuke, Tochigi 329-0412, Japan
| | - Satoshi Sakai
- Race Horse Hospital, Miho Training Center, JRA, 2500-2, Oaza-Mikoma, Miho-mura, Inashiki-gun, Ibaraki 300-0493, Japan
| | - Kota Toju
- Race Horse Hospital, Miho Training Center, JRA, 2500-2, Oaza-Mikoma, Miho-mura, Inashiki-gun, Ibaraki 300-0493, Japan
| | - Jun Okada
- Veterinarian Section, Equine Department, JRA, 6-11-1 Roppongi, Minato-ku, Tokyo 105-0003, Japan
| | - Kazumi Kawasaki
- Veterinarian Section, Equine Department, JRA, 6-11-1 Roppongi, Minato-ku, Tokyo 105-0003, Japan
| | - Kanichi Kusano
- Race Horse Hospital, Ritto Training Center, JRA, 1028, Misono, Ritto, Shiga 520-3085, Japan
| | - Isao Kijima-Suda
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
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8
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Development of LC-HRMS methods for evaluation of metabolic conversion of 5-fluorocytosine at GDEPT procedure. J Pharm Biomed Anal 2021; 203:114168. [PMID: 34089981 DOI: 10.1016/j.jpba.2021.114168] [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: 08/14/2020] [Revised: 03/15/2021] [Accepted: 05/21/2021] [Indexed: 11/22/2022]
Abstract
Gene-directed enzyme/prodrug therapy represents one of the experimental treatment approaches. The system based on conversion of nontoxic prodrug 5-fluorocytosine to chemotherapeutic 5-fluorouracil by cytosine deaminase or fusion cytosine deaminase::uracil phosphoribosyl transferase belongs to the most frequently used. The detailed analysis of 5-fluorocytosine, 5-fluorouracil and its metabolites enables to understand various responses of tumour cells to treatment as well as mechanisms of resistance. A fast, sensitive and accurate methods based on liquid chromatography with high-resolution mass spectrometry (LC-HRMS) for the identification and quantification of 5-fluorocytosine, 5-fluorouracil and its major metabolites were developed. Two different hybrid high-resolution mass spectrometers sufficient for study of metabolic pathways were used. The LC-ESI IT-TOF MS method was successfully used for identification of 5-fluorocytosine, 5-fluorouracil and its metabolites in complex biological matrices (mesenchymal stromal cells and tumour cells media) and for confirmation of the metabolic conversion of 5-fluorocytosine even in chemoresistant tumour cells media samples. For quantification, the LC-HESI QExactive MS method was developed and validated. The developed method demonstrated a very good linear range for 5-fluorocytosine from 1 ng/mL to 1000 ng/mL and for its major metabolites from 5 ng/mL to 1000 ng/mL. The limits of detection and limits of quantification ranged from 1.1 to 26 ng/mL and from 3.6 to 87 ng/mL, respectively. Both developed methods confirmed the ability of gene-directed enzyme prodrug therapy to metabolically convert 5-fluorocytosine to 5-fluorouracil and its major metabolites in real samples of tumour cell media and mesenchymal stromal cells.
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Ishii H, Shibuya M, Leung GNW, Nozawa S, Yamashita S, Yamada M, Kushiro A, Kasashima Y, Okada J, Kawasaki K, Kijima-Suda I. Detection and longitudinal distribution of GW1516 and its metabolites in equine hair for doping control using liquid chromatography/high-resolution mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9050. [PMID: 33470485 DOI: 10.1002/rcm.9050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
RATIONALE GW1516 is a peroxisome proliferator-activated receptor-δ (PPAR-δ) agonist that is banned in horseracing and equestrian sports. Long-term detection and longitudinal distribution of GW1516 in the mane of a horse are reported for the first time and this hair analysis could prolong the detection window of GW1516 for doping control. METHODS Mane hairs were divided into three segments (0-7, 7-15, and >15 cm from the cut end) and completely pulverized and homogenized for analysis. The pulverized hair samples were extracted with methanol followed by further purification and the extracts were analyzed by liquid chromatography/electrospray ionization high-resolution mass spectrometry (LC/ESI-HRMS) using a Q-Exactive instrument. This method was successfully validated and applied to post-administration samples to confirm the presence of GW1516 and its metabolites and estimate the uptake amounts of GW1516. RESULTS After administration of 150 mg of GW1516 to a thoroughbred mare, GW1516 was detected in one of two segments of all mane hairs, and four metabolites, namely GW1516 sulfoxide, GW1516 sulfone, 5-(hydroxymethyl)-4-methyl-2-(4-trifluoromethylphenyl)thiazole (HMTT), and 4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazole-5-carboxylic acid (MTTC), were also identified. The longitudinal distribution analysis results showed that the maximum uptake of GW1516 into hair (approximately 0.05 pg/mg) was observed at around 13 weeks post-administration and GW1516 could be detected and confirmed up to 6 months post-administration. CONCLUSIONS The parent drug GW1516 was identified as the most appropriate monitoring target in equine hair for controlling its misuse in horses. The use of hair analysis could extend the detection time of GW1516 to at least 6 months after the administration of 150 mg of GW1516 to a thoroughbred mare.
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Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Satoshi Nozawa
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Shozo Yamashita
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Asuka Kushiro
- Research Planning & Coordination Division, JRA, Equine Research Institute, 1400-4, Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Yoshinori Kasashima
- Research Planning & Coordination Division, JRA, Equine Research Institute, 1400-4, Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Jun Okada
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Kazumi Kawasaki
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Isao Kijima-Suda
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
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10
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Hirasawa T, Kikuchi M, Shigeta K, Takasaki S, Sato Y, Sato T, Ogura J, Onodera K, Fukuhara N, Onishi Y, Maekawa M, Mano N. High-throughput liquid chromatography/electrospray ionization-tandem mass spectrometry method using in-source collision-induced dissociation for simultaneous quantification of imatinib, dasatinib, bosutinib, nilotinib, and ibrutinib in human plasma. Biomed Chromatogr 2021; 35:e5124. [PMID: 33772839 DOI: 10.1002/bmc.5124] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 01/30/2023]
Abstract
Recent studies have shown that therapeutic drug monitoring of tyrosine kinase inhibitors (TKIs) could improve treatment efficacy and safety. A simple analytical method using high-performance LC/electrospray ionization-tandem mass spectrometry has been developed and validated for simultaneous quantification of BCR-ABL and Bruton's TKIs used for chronic leukemia (imatinib, dasatinib, bosutinib, nilotinib, and ibrutinib) in human plasma. Although these structures and physical properties are similar, owing to their different linear ranges, simultaneously determining the plasma levels of these five TKIs by applying optimal MS parameters remains difficult. A quantitative range exceeding 60,000-fold was required, and the linear dynamic ranges of imatinib, bosutinib, and nilotinib were limited because of the presence of a saturated detection signal. In this study, we applied the in-source collision-induced dissociation technique to control the ion amounts in mass spectrometry. This new method allowed rapid determination within 5 min with simple pretreatment. The method was validated according to the US Food and Drug Administration guidelines. Moreover, all samples of patients with chronic leukemia were successfully measured and their values were within the linear range of measurement. Therefore, our high-throughput analytical system is useful to measure the plasma concentrations of imatinib, dasatinib, bosutinib, nilotinib, and ibrutinib in clinical practice.
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Affiliation(s)
- Tensei Hirasawa
- Faculty of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan
| | - Masafumi Kikuchi
- Faculty of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan.,Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Kensuke Shigeta
- Faculty of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan
| | - Shinya Takasaki
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Yu Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Toshihiro Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Jiro Ogura
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan.,Yamagata University Graduate School of Medical Science/Department of Pharmacy, Yamagata University Hospital, Yamagata, Japan
| | - Koichi Onodera
- Department of Hematology and Rheumatology, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Noriko Fukuhara
- Department of Hematology and Rheumatology, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Yasushi Onishi
- Department of Hematology and Rheumatology, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Masamitsu Maekawa
- Faculty of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan.,Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Nariyasu Mano
- Faculty of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan.,Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
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11
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Sato Y, Shigeta K, Hirasawa T, Sato T, Ogura J, Maekawa M, Ebata A, Hamanaka Y, Tada H, Ishida T, Kikuchi M, Mano N. Establishment of an analytical method for simultaneous quantitation of CDK4/6 inhibitors, aromatase inhibitors, and an estrogen receptor antagonist in human plasma using LC-ESI-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1173:122655. [PMID: 33831689 DOI: 10.1016/j.jchromb.2021.122655] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/05/2021] [Accepted: 03/08/2021] [Indexed: 11/30/2022]
Abstract
Cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors (palbociclib, abemaciclib, and ribociclib) are used to treat human epithelial growth factor receptor (HER)-2 negative and hormone receptor (HR) positive advanced breast cancer in combination with aromatase inhibitors (letrozole, anastrozole) or an estrogen receptor antagonist (fulvestrant). Administration of these drugs frequently causes severe side effects, such as neutropenia and diarrhea. Therefore, therapeutic drug monitoring (TDM) of CDK4/6 inhibitors, aromatase inhibitors, and the estrogen receptor antagonist is considered important for ensuring the efficacy and safety of these drugs. In this study, we describe a simple, highly sensitive, and specific liquid chromatography/electrospray ionization tandem mass spectrometry method for simultaneous quantitation of the concentrations of palbociclib, abemaciclib, ribociclib, letrozole, anastrozole, and fulvestrant. In addition, we analyzed plasma samples from patients with HER2-negative and HR-positive advanced breast cancer treated with these compounds using this novel method. In our method, the intra-assay relative error (RE) values ranged from -12.8% to 12.9%, the inter-assay RE values ranged from -4.8% to 6.2%, and the coefficient of variation (CV) values for intra- and inter-assay were ≤8.6% and ≤13.3%, respectively. The analytes showed good stability with RE values ranging from -13.5% to 13.6% and CV values <10.4%. Moreover, all the samples from patients were successfully quantified, and were within the range of measurement. This method can be used for TDM of routine anticancer drugs in clinical practice and for pharmacokinetics/pharmacodynamics research in future studies.
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Affiliation(s)
- Yu Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan.
| | - Kensuke Shigeta
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Tensei Hirasawa
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Toshihiro Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan.
| | - Jiro Ogura
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan.
| | - Masamitsu Maekawa
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Akiko Ebata
- Department of Breast and Endocrine Surgical Oncology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan.
| | - Yohei Hamanaka
- Department of Breast and Endocrine Surgical Oncology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan.
| | - Hiroshi Tada
- Department of Breast and Endocrine Surgical Oncology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan.
| | - Takanori Ishida
- Department of Breast and Endocrine Surgical Oncology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan.
| | - Masafumi Kikuchi
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Nariyasu Mano
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan; Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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12
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Ishii H, Shibuya M, Leung GNW, Yamashita S, Yamada M, Kushiro A, Kasashima Y, Okada J, Kawasaki K, Kijima-Suda I. Metabolic study of GW1516 in equine urine using liquid chromatography/electrospray ionization Q-Exactive high-resolution mass spectrometry for doping control. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9028. [PMID: 33319421 DOI: 10.1002/rcm.9028] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/11/2020] [Accepted: 12/12/2020] [Indexed: 06/12/2023]
Abstract
RATIONALE The use of GW1516, a peroxisome proliferator-activated receptor δ (PPAR δ) agonist, is strictly prohibited in both horseracing and equestrian competitions. However, little is known about its metabolic fate in horses. To the best of our knowledge, this is the first reported metabolic study of GW1516 in equine urine. METHODS Urine samples obtained from a thoroughbred after nasoesophageal administration with GW1516 were protein-precipitated and the supernatants were subsequently analyzed by liquid chromatography/electrospray ionization high-resolution mass spectrometry (LC/ESI-HRMS) with a Q-Exactive mass spectrometer. Monoisotopic ions of GW1516 and its metabolites were monitored from the full-scan mass spectral data of pre- and post-administration samples. A quantification method was developed and validated to establish the excretion profiles of GW1516, its sulfoxide, and its sulfone in equine urine. RESULTS GW1516 and its nine metabolites [including GW1516 sulfoxide, GW1516 sulfone, 5-(hydroxymethyl)-4-methyl-2-(4-trifluoromethylphenyl)thiazole (HMTT), methyl 4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazole-5-carboxylate (MMTC), 4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazole-5-carboxylic acid (MTTC), and M1 to M4] were detected in post-administration urine samples. GW1516 sulfoxide and GW1516 sulfone showed the longest detection times in post-administration urine samples and were therefore recommended as potential screening targets for doping control purposes. Quantitative analysis was also conducted to establish the excretion profiles of GW1516 sulfoxide and GW1516 sulfone in urine. CONCLUSIONS For the purposes of doping control of GW1516, the GW1516 sulfoxide and GW1516 sulfone metabolites are recommended as the target analytes to be monitored in equine urine due to their high specificities, long detection times (1 and 4 weeks, respectively), and the ready availability of their reference materials.
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Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Shozo Yamashita
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Asuka Kushiro
- Equine Research Institute, Research Planning & Coordination Division, JRA, 1400-4, Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Yoshinori Kasashima
- Equine Research Institute, Research Planning & Coordination Division, JRA, 1400-4, Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Jun Okada
- Veterinarian Section, Equine Department, JRA, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Kazumi Kawasaki
- Veterinarian Section, Equine Department, JRA, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Isao Kijima-Suda
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
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13
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Sato T, Suzuka M, Sato Y, Iwabuchi R, Kobayashi D, Ogura J, Takasaki S, Yokota M, Tsukamoto T, Hayakawa Y, Kikuchi M, Maekawa M, Mano N. Development of a simultaneous analytical method for clozapine and its metabolites in human plasma using liquid chromatography/electrospray ionization tandem mass spectrometry with linear range adjusted by in-source collision-induced dissociation. Biomed Chromatogr 2021; 35:e5094. [PMID: 33599311 DOI: 10.1002/bmc.5094] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/03/2021] [Accepted: 02/13/2021] [Indexed: 11/10/2022]
Abstract
Clozapine (CLZ) is a key drug in treatment-resistant schizophrenia. Therapeutic drug monitoring (TDM) of CLZ and its metabolites, N-desmethylclozapine and clozapine N-oxide, is required to monitor and manage the risks of side effects. Although quantification methods for TDM have been developed for CLZ and its metabolites, they were not sufficiently accurate for the quantification of CLZ owing to the upper limits of the calibration curves. An analytical method using high-performance liquid chromatography/electrospray ionization tandem mass spectrometry was developed and validated for the simultaneous measurement of CLZ and its metabolites in human plasma. To expand the concentration range of the calibration curves, we used a linear range shift technique using in-source collision-induced dissociation (CID). Using our approach, the linearity and quantitative range were improved compared to those reported by previous studies, and were sufficient for TDM in clinical practice. The intra- and inter-assay accuracy was 84.6%-114.8%, and the intra- and inter-assay precisions were ≤9.1% and ≤9.9%, respectively. Moreover, all samples from patients with treatment-resistant schizophrenia were successfully quantified. Therefore, our novel analytical method using in-source CID had the appropriate performance to measure the plasma concentrations of CLZ and its metabolites for TDM in clinical practice.
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Affiliation(s)
- Toshihiro Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| | - Masato Suzuka
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| | - Yuji Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| | - Riko Iwabuchi
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| | - Daisuke Kobayashi
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| | - Jiro Ogura
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| | - Shinya Takasaki
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| | - Maki Yokota
- Faculty of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Taku Tsukamoto
- Global Application Development Center, Shimadzu Corporation, Kyoto, Japan
| | - Yoshihiro Hayakawa
- Global Application Development Center, Shimadzu Corporation, Kyoto, Japan
| | - Masafumi Kikuchi
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan.,Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Masamitsu Maekawa
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan.,Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Nariyasu Mano
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan.,Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
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14
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Takasaki S, Hirasawa T, Sato Y, Maekawa M, Tsukamoto T, Kikuchi M, Ogura J, Hayakawa Y, Matsuda Y, Oishi H, Sado T, Noda M, Okada Y, Yamaguchi H, Mano N. Simultaneous analysis of drugs administered to lung-transplanted patients using liquid chromatography-tandem mass spectrometry for therapeutic drug monitoring. Biomed Chromatogr 2021; 35:e5067. [PMID: 33450064 DOI: 10.1002/bmc.5067] [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] [Received: 11/30/2020] [Revised: 12/10/2020] [Accepted: 12/15/2020] [Indexed: 11/08/2022]
Abstract
Several drugs are administered to lung-transplanted patients, which are monitored using therapeutic drug monitoring (TDM). Therefore, we developed and validated a liquid chromatography-tandem mass spectrometry method to simultaneously analyze immunosuppressive drugs such as mycophenolic acid, antifungal drugs such as voriconazole and itraconazole, and its metabolite hydroxyitraconazole. Chromatographic separation was achieved using a C18 column and gradient flow of mobile phase comprising 20 mM aqueous ammonium formate and 20 mM ammonium formate-methanol solution. A simple protein precipitation treatment was performed using acetonitrile/methanol and mycophenolic acid-2 H3 , voriconazole-2 H3 , itraconazole-2 H4 , and hydroxyitraconazole-2 H4 as internal standards. The linearity ranges of mycophenolic acid, voriconazole, itraconazole, and hydroxyitraconazole were 100-20,000, 50-10,000, 5-1000, and 5-1000 ng/mL, respectively. The retention time of each target was less than 2 min. The relative errors in intra- and inter-day were within ±7.6%, the coefficient of variation was 8.9% or less for quality control low, medium, and high, and it was 15.8% or less for lower limit of quantitation. Moreover, the patient samples were successfully quantified, and they were within the linear range of measurements. Therefore, our new method may be useful for TDM in lung-transplanted patients.
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Affiliation(s)
- Shinya Takasaki
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Tensei Hirasawa
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan
| | - Yu Sato
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Masamitsu Maekawa
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | | | - Masafumi Kikuchi
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan.,Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan
| | - Jiro Ogura
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | | | - Yasushi Matsuda
- Department of Thoracic Surgery, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Hisashi Oishi
- Department of Thoracic Surgery, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Tetsu Sado
- Department of Thoracic Surgery, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Masafumi Noda
- Department of Thoracic Surgery, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Yoshinori Okada
- Department of Thoracic Surgery, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Hiroaki Yamaguchi
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Nariyasu Mano
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan.,Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan
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15
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Schneider JJ, Galettis P, Martin JH. Overcoming barriers to implementing precision dosing with 5-fluorouracil and capecitabine. Br J Clin Pharmacol 2021; 87:317-325. [PMID: 33386659 DOI: 10.1111/bcp.14723] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 12/01/2020] [Accepted: 12/17/2020] [Indexed: 12/27/2022] Open
Abstract
Despite advances in targeted cancer therapy, the fluoropyrimidines 5-fluorouracil (5FU) and capecitabine continue to play an important role in oncology. Historically, dosing of these drugs has been based on body surface area. This approach has been demonstrated to be an imprecise way to determine the optimal dose for a patient. Evidence in the literature has demonstrated that precision dosing approaches, such as DPD enzyme activity testing and, in the case of intravenous 5FU, pharmacokinetic-guided dosing, can reduce toxicity and yield better patient outcomes. However, despite the evidence, there has not been uniform adoption of these approaches in the clinical setting. When a drug such as 5FU has been used clinically for many decades, it may be difficult to change clinical practice. With the aim of facilitating change of practice, issues and barriers to implementing precision dosing approaches for 5FU and capecitabine are identified and discussed with possible solutions proposed.
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Affiliation(s)
- Jennifer J Schneider
- Discipline of Clinical Pharmacology, School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia.,Centre for Drug Repurposing and Medicines Research, Level 3 Hunter Medical Research Institute, Kookaburra Circuit, Newcastle, New South Wales, Australia
| | - Peter Galettis
- Discipline of Clinical Pharmacology, School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia.,Centre for Drug Repurposing and Medicines Research, Level 3 Hunter Medical Research Institute, Kookaburra Circuit, Newcastle, New South Wales, Australia
| | - Jennifer H Martin
- Discipline of Clinical Pharmacology, School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia.,Centre for Drug Repurposing and Medicines Research, Level 3 Hunter Medical Research Institute, Kookaburra Circuit, Newcastle, New South Wales, Australia
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16
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Ishii H, Leung GNW, Yamashita S, Yamada M, Kushiro A, Kasashima Y, Okada J, Kawasaki K, Kijima-Suda I. Doping control analysis of GW1516 in equine plasma using liquid chromatography/electrospray ionization Q-Exactive high-resolution mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8920. [PMID: 32776613 DOI: 10.1002/rcm.8920] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
RATIONALE GW1516 is a peroxisome proliferator-activated receptor-δ agonist in the class of hormones and metabolic modulators. The use of GW1516 is banned in both horseracing and equestrian competitions. To the best of our knowledge, this is the first metabolic study of GW1516 in horses. METHODS After protein precipitation of pre- and post-administration plasma GW1516 samples, the supernatants were analyzed using liquid chromatography/electrospray ionization Q-Exactive high-resolution mass spectrometry to detect GW1516 and its metabolites. Monoisotopic ions of GW1516 and its metabolites were monitored from the full-scan mass spectral data of pre- and post-administration samples. Quantification methods were developed and validated to establish the elimination profiles of GW1516, its sulfoxide, and its sulfone in equine plasma. RESULTS GW1516 and its four metabolites GW1516 sulfoxide, GW1516 sulfone, 5-(hydroxymethyl)-4-methyl-2-(4-trifluoromethylphenyl)thiazole (HMTT), and M1 were detected in post-administration plasma samples. GW1516 sulfoxide, GW1516 sulfone, and HMTT were identified by comparison with their respective reference standards whereas M1 was tentatively identified as 4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazole-5-carboxylic acid by mass spectral interpretation. GW1516 had the longest detection time in post-administration plasma. The elimination profiles of GW1516, its sulfoxide, and its sulfone in plasma were established. CONCLUSIONS For the purpose of doping control, GW1516 is recommended as the target analyte to be monitored in equine plasma due to its long detection time (around 1 week) and the ready availability of its reference material.
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Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Shozo Yamashita
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Asuka Kushiro
- Equine Research Institute, Research Planning & Coordination Division, JRA, 1400-4 Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Yoshinori Kasashima
- Equine Research Institute, Research Planning & Coordination Division, JRA, 1400-4 Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Jun Okada
- Veterinarian Section, Equine Department, JRA, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Kazumi Kawasaki
- Veterinarian Section, Equine Department, JRA, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Isao Kijima-Suda
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
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17
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The application of in-source fragmentation in ultra-high performance liquid chromatography-electrospray ionization -tandem mass spectrometry for pesticide residue analysis. J Chromatogr A 2020; 1633:461637. [DOI: 10.1016/j.chroma.2020.461637] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/30/2020] [Accepted: 10/20/2020] [Indexed: 01/14/2023]
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18
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Study of intracellular anabolism of 5-fluorouracil and incorporation in nucleic acids based on an LC-HRMS method. J Pharm Anal 2020; 11:77-87. [PMID: 33717614 PMCID: PMC7930635 DOI: 10.1016/j.jpha.2020.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 12/21/2022] Open
Abstract
5-Fluorouracil (5-FU) is an anticancer drug extensively used for different cancers. Intracellular metabolic activation leads to several nucleoside and nucleotide metabolites essential to exert its cytotoxic activity on multiple cellular targets such as enzymes, DNA and RNA. In this paper, we describe the development of a method based on liquid chromatography coupled with high resolution mass spectrometry suitable for the simultaneous determination of the ten anabolic metabolites (nucleoside, nucleotide and sugar nucleotide) of 5-FU. The chromatographic separation was optimized on a porous graphitic carbon column allowing the analysis of the metabolites of 5-FU as well as endogenous nucleotides. The detection was performed on an Orbitrap® tandem mass spectrometer. Linearity of the method was verified in intracellular content and in RNA extracts. The limit of detection was equal to 12 pg injected on column for nucleoside metabolites of 5-FU and 150 pg injected on column for mono- and tri-phosphate nucleotide metabolites. Matrix effect was evaluated in cellular contents, DNA and RNA extracts for nucleoside and nucleotides metabolites. The method was successfully applied to i) measure the proportion of each anabolic metabolite of 5-FU in cellular contents, ii) follow the consequence of inhibition of enzymes on the endogenous nucleotide pools, iii) study the incorporation of metabolites of 5-FU into RNA and DNA, and iv) to determine the incorporation rate of 5-FUrd into 18 S and 28 S sub-units of rRNA. The LC-MS-HRMS method allows the analysis of the ten anabolic metabolites of 5-FU. The present method is useful to study the incorporation of 5-FU into RNA and DNA. Method to determine the incorporation rate of 5-FU into subunit of rRNA is innovative.
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19
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Development of Molecularly Imprinted Membranes for Selective Determination of Urinary Ultra-Trace 5-Fluorouracil as Antineoplastic Drug Used in Chemotherapy. Macromol Res 2020. [DOI: 10.1007/s13233-020-8051-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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He Z, Xu Y, Zhang Y, Liu B, Liu X. On the Use of In-Source Fragmentation in Ultrahigh-Performance Liquid Chromatography-Electrospray Ionization-High-Resolution Mass Spectrometry for Pesticide Residue Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:10800-10812. [PMID: 31490681 DOI: 10.1021/acs.jafc.9b04583] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this work, a highly efficient pesticide residue screening and quantification method was established using ultrahigh-performance liquid chromatography-tandem quadrupole time-of-flight mass spectrometry based on in-source fragmentation. Over 400 pesticides were tested, among which 96 pesticides displayed in-source fragmentation. A novel concept of in-source fragment fraction was proposed to evaluate the extent of in-source fragmentation, which was found to be chemical structure- and source parameter-dependent. A high-resolution MS/MS library containing 403 pesticides and 126 fragments was created and was applied for library searching of pesticide residues in vegetables and fruits. The introduction of in-source fragments effectively circumvented misannotation and occurrence of false negatives. The quantification ability for the fragments was validated in terms of recovery, linearity, and limit of quantification and its superiority to the parent pesticides was established. Finally, the proposed method was applied for the analysis of real samples and proficiency test samples, and false negative results were successfully avoided in the analysis.
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Affiliation(s)
- Zeying He
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety , Ministry of Agriculture, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs , Tianjin 300191 , P. R. China
| | - Yaping Xu
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety , Ministry of Agriculture, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs , Tianjin 300191 , P. R. China
| | - Yanwei Zhang
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety , Ministry of Agriculture, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs , Tianjin 300191 , P. R. China
| | - Bingjie Liu
- SCIEX, Analytical Instrument Trading Company, Limited , Beijing 100015 , China
| | - Xiaowei Liu
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety , Ministry of Agriculture, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs , Tianjin 300191 , P. R. China
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21
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MAEKAWA M, TSUKAMOTO T, TAKASAKI S, KIKUCHI M, SATO Y, OGURA J, HAYAKAWA Y, YAMAGUCHI H, MANO N. Fundamental Study of Behaviors of In-Source Collision Induced Dissociation and Shifting the Linear Range of Calibration Curves of Various Drugs and the Metabolites Used for Therapeutic Drug Monitoring. CHROMATOGRAPHY 2019. [DOI: 10.15583/jpchrom.2019.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
| | | | - Shinya TAKASAKI
- Department of Pharmaceutical Sciences, Tohoku University Hospital
| | - Masafumi KIKUCHI
- Department of Pharmaceutical Sciences, Tohoku University Hospital
- Graduate school of Pharmaceutical Sciences, Tohoku University
| | - Yu SATO
- Department of Pharmaceutical Sciences, Tohoku University Hospital
| | - Jiro OGURA
- Department of Pharmaceutical Sciences, Tohoku University Hospital
| | | | - Hiroaki YAMAGUCHI
- Department of Pharmaceutical Sciences, Tohoku University Hospital
- Graduate school of Pharmaceutical Sciences, Tohoku University
| | - Nariyasu MANO
- Department of Pharmaceutical Sciences, Tohoku University Hospital
- Graduate school of Pharmaceutical Sciences, Tohoku University
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22
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Yamaguchi H, Takasaki S, Kikuchi M, Kawasaki Y, Arai Y, Mano N. [Toward Personalized Cancer Therapy with Oral Molecular-targeted Agents]. YAKUGAKU ZASSHI 2019; 139:911-915. [PMID: 31155535 DOI: 10.1248/yakushi.18-00213-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Oral molecular-targeted agents are used clinically for the treatment of various types of cancer. However, even when treatment is started at the dosage indicated in the medical package insert, we have experienced many cases in which treatment had to be stopped early owing to the occurrence of serious side effects or an insufficient therapeutic effect. In recent years, a wide range of studies has been conducted on the therapeutic drug monitoring (TDM) of oral molecular-targeted therapeutic agents to prevent serious side effects and maximize the therapeutic effect. In Japan, the TDM of imatinib has been covered by insurance since 2012, and the TDM of sunitinib has been covered since 2018. In contrast, tyrosine kinase inhibitors may have severe side effects, but their TDM is not covered by medical insurance. We aimed to identify a safe, highly effective chemotherapy regimen based on scientific evidence gathered from Japanese patients. We examined the relationship between the plasma concentration of drugs and clinical findings, such as side effects and treatment effects, at our hospital. In this symposium review, we introduce our results based on the treatment of patients with renal cell carcinoma.
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Affiliation(s)
| | - Shinya Takasaki
- Department of Pharmaceutical Sciences, Tohoku University Hospital
| | - Masafumi Kikuchi
- Department of Pharmaceutical Sciences, Tohoku University Hospital
| | | | - Yoichi Arai
- Department of Urology, Tohoku University Hospital
| | - Nariyasu Mano
- Department of Pharmaceutical Sciences, Tohoku University Hospital
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23
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MANO N, MAEKAWA M, YAMAGUCHI H. Clinical Chemistry Based on Highly Accurate Separation Analysis Technology. CHROMATOGRAPHY 2018. [DOI: 10.15583/jpchrom.2018.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Nariyasu MANO
- Department of Pharmaceutical Sciences, Tohoku University Hospital
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24
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Gao J, Zhen R, Liao H, Zhuang W, Guo W. Pharmacokinetics of continuous transarterial infusion of 5-fluorouracil in patients with advanced hepatocellular carcinoma. Oncol Lett 2018; 15:7175-7181. [PMID: 29725440 PMCID: PMC5920382 DOI: 10.3892/ol.2018.8242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 02/23/2018] [Indexed: 12/12/2022] Open
Abstract
Numerous studies concerning hepatic arterial infusion chemotherapy (HAIC) have been conducted by adopting regimens containing 5-fluorouracil (FU), with a favourable efficacy compared with conventional transcatheter arterial chemoembolisation (TACE) treatment; however, the detailed mechanism of HAIC remains unclear. The present study aimed to evaluate peripheral concentration time curves of 5-FU administered through the hepatic artery, which may additionally explain the mechanism of action of HAIC. A total of 10 eligible patients underwent transcatheter arterial embolization and a 2-day HAIC treatment regimen using a folinic acid, fluorouracil and oxaliplatin regimen. Peripheral venous blood sampling was performed in each patient prior to infusion, and at 0, 0.5, 1, 1.5, 2, 5, 10, 15, 22 and 23 h following the start of infusion. The blood sample at 0 h was analysed for dihydropyrimidine dehydrogenase (DPD) levels by high performance liquid chromatography, and the rest of the samples were analysed for 5-FU by optimised liquid chromatography-mass spectrometry (LC-MS). The lower limit of quantification of optimised LC-MS for 5-FU was 5 ng/ml. The steady-state plasma concentration of 5-FU administered through the hepatic artery was achieved after 15 h. This concentration largely varied, ranging from 8.64-152.00 ng/ml. Optimised LC-MS may detect low concentrations of 5-FU. The steady-state concentration of 5-FU administered through the hepatic artery was achieved after 15 h. DPD levels were analysed through determining the ratio of plasma uracil (U) and dihydrouracil (UH2) by HPLC, and the results indicated a mild DPD deficiency in the patients with HCC. These results may provide a basis for the explanation of the clinical efficacy of HAIC, and to additionally optimise its efficacy.
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Affiliation(s)
- Jian Gao
- Department of Interventional Radiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Rui Zhen
- Department of Interventional Radiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Hai Liao
- Department of Clinical Trials and Research on Cancer, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510080, P.R. China
| | - Wenquan Zhuang
- Department of Interventional Radiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Wenbo Guo
- Department of Interventional Radiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
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25
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Takasaki S, Tanaka M, Kikuchi M, Maekawa M, Kawasaki Y, Ito A, Arai Y, Yamaguchi H, Mano N. Simultaneous analysis of oral anticancer drugs for renal cell carcinoma in human plasma using liquid chromatography/electrospray ionization tandem mass spectrometry. Biomed Chromatogr 2018; 32:e4184. [DOI: 10.1002/bmc.4184] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/01/2017] [Accepted: 12/17/2017] [Indexed: 12/28/2022]
Affiliation(s)
- Shinya Takasaki
- Department of Pharmaceutical Sciences; Tohoku University Hospital; Sendai Miyagi Japan
| | - Masaki Tanaka
- Department of Pharmaceutical Sciences; Tohoku University Hospital; Sendai Miyagi Japan
| | - Masafumi Kikuchi
- Department of Pharmaceutical Sciences; Tohoku University Hospital; Sendai Miyagi Japan
| | - Masamitsu Maekawa
- Department of Pharmaceutical Sciences; Tohoku University Hospital; Sendai Miyagi Japan
| | | | - Akihiro Ito
- Department of Urology; Tohoku University Hospital; Sendai Miyagi Japan
| | - Yoichi Arai
- Department of Urology; Tohoku University Hospital; Sendai Miyagi Japan
| | - Hiroaki Yamaguchi
- Department of Pharmaceutical Sciences; Tohoku University Hospital; Sendai Miyagi Japan
| | - Nariyasu Mano
- Department of Pharmaceutical Sciences; Tohoku University Hospital; Sendai Miyagi Japan
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26
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Parcher JF, Wang M, Chittiboyina AG, Khan IA. In‐source collision‐induced dissociation (IS‐CID): Applications, issues and structure elucidation with single‐stage mass analyzers. Drug Test Anal 2017; 10:28-36. [DOI: 10.1002/dta.2249] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/11/2017] [Accepted: 07/12/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Jon F. Parcher
- National Center for Natural Products Research, School of Pharmacy University of Mississippi University Mississippi USA
| | - Mei Wang
- National Center for Natural Products Research, School of Pharmacy University of Mississippi University Mississippi USA
| | - Amar G. Chittiboyina
- National Center for Natural Products Research, School of Pharmacy University of Mississippi University Mississippi USA
| | - Ikhlas A. Khan
- National Center for Natural Products Research, School of Pharmacy University of Mississippi University Mississippi USA
- Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy University of Mississippi, University Mississippi USA
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27
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Guichard N, Guillarme D, Bonnabry P, Fleury-Souverain S. Antineoplastic drugs and their analysis: a state of the art review. Analyst 2017; 142:2273-2321. [DOI: 10.1039/c7an00367f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We provide an overview of the analytical methods available for the quantification of antineoplastic drugs in pharmaceutical formulations, biological and environmental samples.
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Affiliation(s)
- Nicolas Guichard
- Pharmacy
- Geneva University Hospitals (HUG)
- Geneva
- Switzerland
- School of Pharmaceutical Sciences
| | - Davy Guillarme
- School of Pharmaceutical Sciences
- University of Geneva
- University of Lausanne
- Geneva
- Switzerland
| | - Pascal Bonnabry
- Pharmacy
- Geneva University Hospitals (HUG)
- Geneva
- Switzerland
- School of Pharmaceutical Sciences
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28
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ISHII H, YAMAGUCHI H, MANO N. Expanding the Versatility of a Quantitative Determination Range Adjustment Technique Using In-Source CID in LC/MS/MS. CHROMATOGRAPHY 2017. [DOI: 10.15583/jpchrom.2017.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Hideaki ISHII
- Graduate School of Pharmaceutical Sciences, Tohoku University
- Laboratory of Racing Chemistry
| | - Hiroaki YAMAGUCHI
- Graduate School of Pharmaceutical Sciences, Tohoku University
- Department of Pharmaceutical Sciences, Tohoku University Hospital
| | - Nariyasu MANO
- Graduate School of Pharmaceutical Sciences, Tohoku University
- Department of Pharmaceutical Sciences, Tohoku University Hospital
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