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Zenkevich IG, Nikitina DA, Kushakova AS. Processing and Interpretation of Analytical Data with a High Degree of Uncertainty. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822090143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Zhang M, Tajima S, Suetsugu K, Hirota T, Tsuchiya Y, Yamauchi T, Yoshimoto G, Miyamoto T, Egashira N, Akashi K, Ieiri I. Development and Validation of an LC-MS/MS Method to Quantify Gilteritinib and Its Clinical Application in Patients With FLT3 Mutation-Positive Acute Myelogenous Leukemia. Ther Drug Monit 2022; 44:592-596. [PMID: 35149666 DOI: 10.1097/ftd.0000000000000971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/21/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Gilteritinib, a novel oral tyrosine kinase inhibitor, is used to treat acute myeloid leukemia (AML) with FMS-like tyrosine kinase-3 (FLT3) mutations. Therapeutic drug monitoring (TDM) of gilteritinib is important for improving clinical outcomes and ensuring safety. Therefore, this study aimed to develop a simplified method for quantifying gilteritinib in human plasma using liquid chromatography-tandem mass spectrometry. METHODS Liquid chromatography was performed by using an Acquity BEH C18 column (50 mm × 2.1 mm, 1.7 μm) and a gradient elution with 0.1% formic acid in water (A) and acetonitrile (B). Detection was performed by using a Shimadzu tandem mass spectrometer through multiple reaction monitoring in the positive-ion mode. RESULTS The developed method enabled quantification of gilteritinib in 4 minutes and was validated by evaluating selectivity, calibration curve (10-1000 ng/mL, r 2 > 0.99), a lower limit of quantification (LLOQ), accuracy (overall bias -4.2% to 1.9%), precision (intraday CV ≤ 7.9%; interday CV ≤ 13.6%), carryover, recovery, matrix effect, dilution integrity, and stability according to the US Food and Drug Administration (FDA) guidelines. This method was successfully applied to the TDM of gilteritinib trough concentrations in 3 patients with AML. CONCLUSIONS The developed method fulfilled the FDA guideline criteria and can easily be implemented to facilitate TDM in patients receiving gilteritinib in a clinical setting.
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Affiliation(s)
- Mengyu Zhang
- Department of Clinical Pharmacology and Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Soichiro Tajima
- Department of Pharmacy, Kyushu University Hospital, Fukuoka, Japan
| | | | - Takeshi Hirota
- Department of Pharmacy, Kyushu University Hospital, Fukuoka, Japan
| | - Yuichi Tsuchiya
- Department of Pharmacy, Kyushu University Hospital, Fukuoka, Japan
| | - Takuji Yamauchi
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Goichi Yoshimoto
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Hematology, Saga-Ken Medical Centre Koseikan, Saga, Japan ; and
| | - Toshihiro Miyamoto
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Hematology, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | - Nobuaki Egashira
- Department of Clinical Pharmacology and Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
- Department of Pharmacy, Kyushu University Hospital, Fukuoka, Japan
| | - Koichi Akashi
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ichiro Ieiri
- Department of Clinical Pharmacology and Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
- Department of Pharmacy, Kyushu University Hospital, Fukuoka, Japan
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Kataoka H, Saita T, Oka A, Yamada M, Shin M. An Indirect Competitive Enzyme-Linked Immunosorbent Assay for the Determination of Brigatinib and Gilteritinib Using a Specific Polyclonal Antibody. Biol Pharm Bull 2022; 45:904-909. [PMID: 35786598 DOI: 10.1248/bpb.b22-00166] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Brigatinib and gilteritinib are oral tyrosine kinase inhibitors (TKIs). We aimed to develop a simple and sensitive indirect competitive enzyme-linked immunosorbent assay (ELISA) to quantify brigatinib and gilteritinib in various biological matrices. Antiserum against these TKIs was obtained from mice by using 3-methoxy-4-(-4-(4-methylpiperazin-1-yl) piperidin-1-yl) aniline as a hapten, which has a common substructure with these TKIs. The generated antibody was used to develop an indirect competitive ELISA for these TKIs in human serum. The lower limit of quantification of brigatinib and gilteritinib in human serum was 6.2 and 6.8 ng/mL, respectively. The developed ELISA was used to examine the pharmacokinetics of these TKIs after oral administration in mice and rats. This ELISA is expected to be a valuable tool in pharmacokinetic studies of these TKIs.
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Affiliation(s)
- Hiroto Kataoka
- Applied Life Science Department, Faculty of Biotechnology and Life Science, Sojo University
| | - Tetsuya Saita
- Applied Life Science Department, Faculty of Biotechnology and Life Science, Sojo University
| | - Asuki Oka
- Applied Life Science Department, Faculty of Biotechnology and Life Science, Sojo University
| | - Momoka Yamada
- Applied Life Science Department, Faculty of Biotechnology and Life Science, Sojo University
| | - Masashi Shin
- Applied Life Science Department, Faculty of Biotechnology and Life Science, Sojo University
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