研究等業績 - その他 - 三浦 昌朋
-
Fujita K.
Cancer Chemotherapy and Pharmacology ( Cancer Chemotherapy and Pharmacology ) 95 ( 1 ) 2025年12月
-
高速液体クロマトグラフィ分析装置LM1010を用いたフェニトインとカルバマゼピンの同時血中濃度定量と化学発光免疫測定法との比較
赤嶺 由美子, 松下 美由紀, 森川 悟, 三浦 昌朋
医療薬学 ( 一般社団法人日本医療薬学会 ) 50 ( 9 ) 465 - 472 2024年09月
<p>LM1010 high-performance liquid chromatography system was recently approved as a medical diagnostic device. Phenytoin and carbamazepine—the antiepileptic drugs—can be detected simultaneously using LM1010; however, the accuracy of quantification of these two drugs in serum using this system has not been established. Herein, we compared the performance of LM1010 in measuring phenytoin and carbamazepine with that of an established chemiluminescent immunoassay (CLIA)using the ARCHITECT system. When CLIA calibrator samples were examined using both methods, the accuracy of LM1010 was within 3.20% for phenytoin and 6.50% for carbamazepine. Moreover, the two methods were applied to serum samples from subjects taking phenytoin (n = 95)or carbamazepine (n = 69). The slopes of Deming regression curves comparing LM1010 to CLIA for phenytoin and carbamazepine were 0.984 and 0.943, respectively. Further, Bland–Altman analyses showed an average positive bias (±1.96 × SD)of 0.180 (−1.998 – 2.359)μg/mL for phenytoin and 0.001 (−1.171 – 1.174)μg/mL for carbamazepine using LM1010 relative to CLIA. There were strong correlations between results from LM1010 and CLIA for serum phenytoin and carbamazepine (Spearman’s <i>r</i> = 0.9836 and 0.9754, respectively). The difference in the measurements of serum concentrations of carbamazepine was partially yet significantly negatively correlated with serum hemoglobin (slope = −0.1094). Thus, we successfully applied LM1010 to the simultaneous determination of serum concentrations of phenytoin and carbamazepine and concluded that this system can be used for routine therapeutic drug monitoring.</p>
-
Safety and efficacy of asciminib in a patient with chronic myeloid leukemia on hemodialysis
Naka R.
International Journal of Hematology ( International Journal of Hematology ) 121 ( 2 ) 272 - 275 2024年
-
Numakura K.
Cancer Biology and Therapy ( Cancer Biology and Therapy ) 25 ( 1 ) 2024年
-
Fujita K.
Investigational New Drugs ( Investigational New Drugs ) 42 ( 3 ) 252 - 260 2024年
-
Kobayashi T.
Cancer Chemotherapy and Pharmacology ( Cancer Chemotherapy and Pharmacology ) 94 ( 2 ) 285 - 296 2024年
-
Ureshino H.
International Journal of Hematology ( International Journal of Hematology ) 120 ( 4 ) 492 - 500 2024年
-
Kobayashi Takahiro, Honami Sato, Miura Masatomo, Fukushi Yayoi, Kuroki Wataru, Ito Fumiko, Teshima Kazuaki, Watanabe Atsushi, Fujishima Naohito, Kobayashi Isuzu, Kameoka Yoshihiro, Takahashi Naoto
Cancer Chemotherapy and Pharmacology ( Springer Nature ) 2024年
-
Kobayashi T.
Xenobiotica ( Xenobiotica ) 2024年
-
Fujita K.
Drugs - Real World Outcomes ( Drugs - Real World Outcomes ) 2024年
-
Machine learning prediction of drug dynamics in dasatinib
Mutsu R.
Proceedings - 2024 12th International Symposium on Computing and Networking Workshops, CANDARW 2024 ( Proceedings - 2024 12th International Symposium on Computing and Networking Workshops, CANDARW 2024 ) 400 - 402 2024年
-
Fukuda N.
Journal of chromatographic science ( Journal of chromatographic science ) 62 ( 1 ) 58 - 64 2023年12月
-
Yokota H.
Cancer Chemotherapy and Pharmacology ( Cancer Chemotherapy and Pharmacology ) 92 ( 4 ) 315 - 324 2023年10月
-
Fukuhara T.
Biomedicines ( Biomedicines ) 11 ( 9 ) 2023年09月
-
Akamine Y.
Yakugaku Zasshi ( Yakugaku Zasshi ) 143 ( 4 ) 377 - 383 2023年
<p>Plasma concentrations of mycophenolic acid (MPA), an immunosuppressive agent, have been measured in clinical settings using immunoassay methods or HPLC. However, immunoassay methods show cross-reactivity with metabolites of MPA glucuronide. Recently, the LM1010 high-performance liquid chromatography instrument was approved as a new general medical device. In this study, we compared the results of MPA plasma concentrations analyzed using the LM1010 method and the previously described HPLC method. Plasma samples obtained from 100 renal transplant patients (32 women and 68 men) were evaluated using both HPLC instruments. Deming regression analyses showed a very high correlation between the two instruments, with a slope of 0.9892 and an intercept of 0.0235 µg/mL (<i>r</i><sup>2</sup>=0.982). Bland–Altman analysis showed an average of −0.0012 µg/mL between the LM1010 method and the previously described HPLC method. For the LM1010 method, the total run time for MPA analysis was 7 min, and the analytical time was short; however, the extraction recovery when using a spin column was extremely low for frozen plasma samples stored at −20°C for 1 month, and the volume required for the assay (150 µL) could not be collected. Thus, for the LM1010 method, analysis using fresh plasma samples was optimal. Overall, our findings showed that the LM1010 method was a rapid, accurate HPLC assay for MPA analysis and could be used in clinical practice for routine monitoring of MPA in fresh plasma samples.</p>
-
Fukushi Y.
Yakugaku Zasshi ( Yakugaku Zasshi ) 143 ( 11 ) 963 - 969 2023年
<p>LM1010 HPLC is an emerging automated method designed for use in clinical settings. The aim of this study was to compare the analytical performance of LM1010 with the performance of traditional HPLC and LC-MS/MS in the measurement of plasma concentrations of imatinib. Seventy-eight plasma samples from 20 patients (14 men and 6 women) were collected. Plasma concentrations of imatinib in samples from the same patient were analyzed simultaneously using LM1010, HPLC and LC-MS/MS (LSI Medience Corporation). Strong correlations were seen in pairwise comparisons of results from the LM1010 and HPLC methods, the LM1010 and LC-MS/MS methods, and the LC-MS/MS and HPLC methods (Spearman’s <i>r</i>=0.936, 0.906, and 0.953, respectively); however, the results from the LC-MS/MS method showed a positive proportional bias in comparison with the results from the LM1010 and HPLC methods, according to Deming analyses (slope=1.064 and 1.105, respectively). In Bland–Altman analyses, the LC-MS/MS method showed a positive mean bias of 98.6 and 112 ng/mL in comparison with the LM1010 and HPLC methods, respectively. Notably, results obtained using the LM1010 method were comparable to those using the HPLC method (positive mean bias=13.6 ng/mL; 95% confidence interval, −7.9–35.1 ng/mL). Biochemical parameters or drugs taken concomitantly with imatinib were not found to affect the bias of the LM1010 method. The LM1010 method can be applied to routine therapeutic drug monitoring of imatinib.</p>
-
Nakahara Y.
Frontiers in Cell and Developmental Biology ( Frontiers in Cell and Developmental Biology ) 11 2023年
-
Motoyama S.
Anticancer Research ( Anticancer Research ) 42 ( 12 ) 6105 - 6112 2022年12月
-
Yagishita H.
International Journal of Molecular Sciences ( International Journal of Molecular Sciences ) 23 ( 19 ) 2022年10月
-
Sato H.
Cancer Chemotherapy and Pharmacology ( Cancer Chemotherapy and Pharmacology ) 90 ( 3 ) 279 - 284 2022年09月