{"title":"日本患者白蛋白-胆红素分级与瑞戈非尼及其代谢物M-2和M-5稳态血浆谷浓度之间的关系。","authors":"Kazuma Fujita, Daiki Taguchi, Koji Fukuda, Taichi Yoshida, Kazuhiro Shimazu, Hanae Shinozaki, Hiroyuki Shibata, Masatomo Miura","doi":"10.1007/s10637-024-01429-z","DOIUrl":null,"url":null,"abstract":"<p><p>The aim of the present study was to determine whether the trough plasma concentrations (C<sub>0</sub>) of regorafenib and its metabolites, the N-oxide metabolite (M-2) and the desmethyl N-oxide metabolite (M-5), in 21 patients receiving regorafenib therapy were affected by albumin-bilirubin (ALBI) grade. Regorafenib was administered at dosages ranging from 40 to 160 mg once daily on a 3-week-on, 1-week-off cycle. C<sub>0</sub> values of regorafenib and its major metabolites were measured by high-performance liquid chromatography on day 8 after treatment initiation. The C<sub>0</sub> values of regorafenib and metabolites M-2 and M-5 were significantly lower in patients with ALBI grade 2 as compared with grade 1 (P = 0.023, 0.003 and 0.017, respectively). The total C<sub>0</sub> of regorafenib and its metabolites was significantly higher in ALBI grade 1 patients relative to grade 2 (3.489 μg/mL vs. 1.48 μg/mL; P = 0.009). The median relative dose intensity (RDI) of patients categorized as ALBI grade 2 was significantly lower than that of grade 1 patients (21.9% vs. 62.9%; P = 0.006). In 15 colorectal cancer patients among the total 21 patients, patients with ALBI grade 2 (n = 9) had a significantly shorter median overall survival time than patients with grade 1 (n = 6; P = 0.013). Administering a low dose of regorafenib to patients with ALBI grade 2 reduces the RDI of regorafenib and lowers treatment efficacy, as an appropriate C<sub>0</sub> of regorafenib is not maintained. Monitoring the C<sub>0</sub> of regorafenib regularly is necessary to guide dose adjustment.</p>","PeriodicalId":14513,"journal":{"name":"Investigational New Drugs","volume":null,"pages":null},"PeriodicalIF":3.0000,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11164767/pdf/","citationCount":"0","resultStr":"{\"title\":\"Association between albumin-bilirubin grade and plasma trough concentrations of regorafenib and its metabolites M-2 and M-5 at steady-state in Japanese patients.\",\"authors\":\"Kazuma Fujita, Daiki Taguchi, Koji Fukuda, Taichi Yoshida, Kazuhiro Shimazu, Hanae Shinozaki, Hiroyuki Shibata, Masatomo Miura\",\"doi\":\"10.1007/s10637-024-01429-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The aim of the present study was to determine whether the trough plasma concentrations (C<sub>0</sub>) of regorafenib and its metabolites, the N-oxide metabolite (M-2) and the desmethyl N-oxide metabolite (M-5), in 21 patients receiving regorafenib therapy were affected by albumin-bilirubin (ALBI) grade. Regorafenib was administered at dosages ranging from 40 to 160 mg once daily on a 3-week-on, 1-week-off cycle. C<sub>0</sub> values of regorafenib and its major metabolites were measured by high-performance liquid chromatography on day 8 after treatment initiation. The C<sub>0</sub> values of regorafenib and metabolites M-2 and M-5 were significantly lower in patients with ALBI grade 2 as compared with grade 1 (P = 0.023, 0.003 and 0.017, respectively). The total C<sub>0</sub> of regorafenib and its metabolites was significantly higher in ALBI grade 1 patients relative to grade 2 (3.489 μg/mL vs. 1.48 μg/mL; P = 0.009). The median relative dose intensity (RDI) of patients categorized as ALBI grade 2 was significantly lower than that of grade 1 patients (21.9% vs. 62.9%; P = 0.006). In 15 colorectal cancer patients among the total 21 patients, patients with ALBI grade 2 (n = 9) had a significantly shorter median overall survival time than patients with grade 1 (n = 6; P = 0.013). Administering a low dose of regorafenib to patients with ALBI grade 2 reduces the RDI of regorafenib and lowers treatment efficacy, as an appropriate C<sub>0</sub> of regorafenib is not maintained. Monitoring the C<sub>0</sub> of regorafenib regularly is necessary to guide dose adjustment.</p>\",\"PeriodicalId\":14513,\"journal\":{\"name\":\"Investigational New Drugs\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2024-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11164767/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Investigational New Drugs\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1007/s10637-024-01429-z\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/3/22 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"ONCOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Investigational New Drugs","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s10637-024-01429-z","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/3/22 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"ONCOLOGY","Score":null,"Total":0}
Association between albumin-bilirubin grade and plasma trough concentrations of regorafenib and its metabolites M-2 and M-5 at steady-state in Japanese patients.
The aim of the present study was to determine whether the trough plasma concentrations (C0) of regorafenib and its metabolites, the N-oxide metabolite (M-2) and the desmethyl N-oxide metabolite (M-5), in 21 patients receiving regorafenib therapy were affected by albumin-bilirubin (ALBI) grade. Regorafenib was administered at dosages ranging from 40 to 160 mg once daily on a 3-week-on, 1-week-off cycle. C0 values of regorafenib and its major metabolites were measured by high-performance liquid chromatography on day 8 after treatment initiation. The C0 values of regorafenib and metabolites M-2 and M-5 were significantly lower in patients with ALBI grade 2 as compared with grade 1 (P = 0.023, 0.003 and 0.017, respectively). The total C0 of regorafenib and its metabolites was significantly higher in ALBI grade 1 patients relative to grade 2 (3.489 μg/mL vs. 1.48 μg/mL; P = 0.009). The median relative dose intensity (RDI) of patients categorized as ALBI grade 2 was significantly lower than that of grade 1 patients (21.9% vs. 62.9%; P = 0.006). In 15 colorectal cancer patients among the total 21 patients, patients with ALBI grade 2 (n = 9) had a significantly shorter median overall survival time than patients with grade 1 (n = 6; P = 0.013). Administering a low dose of regorafenib to patients with ALBI grade 2 reduces the RDI of regorafenib and lowers treatment efficacy, as an appropriate C0 of regorafenib is not maintained. Monitoring the C0 of regorafenib regularly is necessary to guide dose adjustment.
期刊介绍:
The development of new anticancer agents is one of the most rapidly changing aspects of cancer research. Investigational New Drugs provides a forum for the rapid dissemination of information on new anticancer agents. The papers published are of interest to the medical chemist, toxicologist, pharmacist, pharmacologist, biostatistician and clinical oncologist. Investigational New Drugs provides the fastest possible publication of new discoveries and results for the whole community of scientists developing anticancer agents.