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Ma H, Zhao N, Luo S, Zhang Y, Yuan Z, Sun H, Gao S, Zhan X, Zhang L. Pharmacokinetic and bioequivalence study of two capecitabine tablets in Chinese patients with breast, colorectal or gastric cancer under fed condition: A multicentric, randomized, open-label, single-dose, two-period, two-way crossover clinical trial. Eur J Pharm Sci 2023; 182:106373. [PMID: 36623698 DOI: 10.1016/j.ejps.2023.106373] [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: 05/26/2022] [Revised: 12/25/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
OBJECTIVE The aim of this study was to examine the pharmacokinetics, bioequivalence, and safety of two tablet formulations of capecitabine 500 mg in Chinese patients with breast, colorectal or gastric cancer under fed condition. METHODS A multicentric, randomized, open-label, single-dose, two-period, two-way crossover trial was conducted by randomizing a single oral dose of test (T) or reference (R, Xeloda®) capecitabine (500 mg) to patients of either sex with colon, colorectal or breast cancer under fed condition (high-fat and high-calorie diet). Pharmacokinetic parameters were calculated using non-compartmental methods. Patients were monitored for safety and tolerability throughout the study. RESULTS 74 subjects were randomly enrolled. The T/R geometric mean ratios (GMRs) and 90% confidence intervals (CIs) for Cmax, AUC0-t and AUC0-∞ of capecitabine were 96.60% (85.87-108.67%), 99.07% (95.40-102.89%), 99.17% (95.29-103.21%), respectively. All 90% CIs fell within the bioequivalence acceptance range of 80.00-125.00%. The common adverse events (AEs) included clinically significant laboratory abnormalities and gastrointestinal diseases. There were no serious adverse events (SAEs) or deaths during the study. No subject withdrew from the study due to AEs. CONCLUSION Single oral intake of test and the reference capecitabine tablets were bioequivalent under fed condition and had similar favourable safety profiles in Chinese patients with breast, colorectal or gastric cancer. TRIAL REGISTRATION chinadrugtrials.org.cn (CTR20182110).
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Affiliation(s)
- Haiping Ma
- Clinical Research Unit, The First Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Naping Zhao
- Clinical Research Unit, The First Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Suxia Luo
- Department of Gastroenterology, Henan Cancer Hospital, Zhengzhou, China
| | - Yanqiao Zhang
- Department of Gastroenterology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Zhijun Yuan
- Department of Oncology, Hunan Cancer Hospital, Changsha, China
| | - Hao Sun
- Department of Gastrointestinal Surgery, Chongqing University Cancer Hospital, Chongqing, China
| | - Shen Gao
- Clinical Research Unit, The First Affiliated Hospital of Naval Medical University, Shanghai, China.
| | - Xianbao Zhan
- Department of Oncology, The First Affiliated Hospital of Naval Medical University, Shanghai, China.
| | - Li Zhang
- Clinical Research Unit, The First Affiliated Hospital of Naval Medical University, Shanghai, China; Department of Pharmacy, The Second Hospital of Anhui Medical University, Hefei, China.
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Li X, Cui D, Xiong J, Dang Q, Wen Q, Yan M, Li H, Jiang X, Lin C, Xie X, Wang T, Xiang L, Wang Y, Zheng L. Pharmacokinetics and Comparative Bioavailability of Test or Reference Capecitabine and Discrepant Pharmacokinetics Among Various Tumors in Chinese Solid Cancer Patients. Clin Pharmacol Drug Dev 2023; 12:324-332. [PMID: 36642942 DOI: 10.1002/cpdd.1202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/24/2022] [Indexed: 01/17/2023]
Abstract
The main objective of this study was to compare the pharmacokinetic (PK) bioequivalence of two capecitabine tablets and explore the different PK profiles of various tumors in Chinese patients with cancer. All 76 patients with a confirmed cancer diagnosis were included in this study. A single dose of 2000 mg of test or reference capecitabine (Xeloda, Hoffmann-La Roche) was orally administered postprandially. After 24 hours of washout, the patients were administered the test or the reference capecitabine alternately. PK samples were taken at the time of predose up to 6 hours postdose. Bioequivalence evaluation was performed using the geometric mean ratios of peak concentration in plasma (Cmax) , area under the concentration-time curve from time 0 to 6 h (AUC0-t) , and area under the concentration-time curve from time 0 to infinity (AUC0-∞ ) for capecitabine and 5-fluorouracil (5-FU). In this study, 90% confidence intervals of test/reference mean ratios of Cmax , AUC0-t , AUC0-∞ of capecitabine and 5-FU were in the range of 80%-125%. Both the test and reference capecitabine regimens were well tolerated in this study. Furthermore, we found that patients with esophageal-gastrointestinal cancers had higher exposure to capecitabine and a shorter time to Cmax (Tmax) than those with breast cancer. In conclusion, a single oral dose of 2000 mg of test capecitabine tablets after postprandial administration was bioequivalent to the reference drug.
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Affiliation(s)
- Xiaoyu Li
- Clinical Trial Center, National Medical Products Administration Key Laboratory for Clinical Research and Evaluation of Innovative Drugs, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Dongyang Cui
- Jiangsu Hengrui Medicine Co. Ltd., Lianyungang, Jiangsu, China
| | - Jianping Xiong
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Qi Dang
- Department of Oncology, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Qing Wen
- Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Min Yan
- Henan Breast Cancer Centre, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou City, Henan Province, China
| | - Hongxia Li
- Department of Pharmacology, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou City, Henan Province, China
| | - Xiaodong Jiang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Cuihong Lin
- Department of Pharmacy, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Xianhe Xie
- Department of Medical Oncology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Teng Wang
- Department of Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Lisha Xiang
- Clinical Trial Center, National Medical Products Administration Key Laboratory for Clinical Research and Evaluation of Innovative Drugs, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Thoracic Oncology Ward, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yongsheng Wang
- Thoracic Oncology Ward, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Li Zheng
- Clinical Trial Center, National Medical Products Administration Key Laboratory for Clinical Research and Evaluation of Innovative Drugs, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Pharmacokinetic and Safety Comparison of Two Capecitabine Tablets in Patients with Colorectal or Breast Cancer Under Fed Conditions: A Multicenter, Randomized, Open-Label, Three-Period, and Reference-Replicated Crossover Study. Adv Ther 2021; 38:4798-4814. [PMID: 34347254 DOI: 10.1007/s12325-021-01817-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 06/03/2021] [Indexed: 12/27/2022]
Abstract
INTRODUCTION In this study, we assessed the pharmacokinetics (PK), bioequivalence, and safety of 150 mg capecitabine compared to the branded reference formulation in colorectal or breast cancer patients receiving a high-fat diet. METHODS This was a multicenter, open, random, balanced, three-period, three-sequence and semi-repetitive cross study with 48 subjects. In each study period, the eligible subject received the test or reference formulation, followed by a 1-day washout period. Serial blood samples for pharmacokinetic assessment were collected at predose up to 8 h postdose. The plasma concentrations of capecitabine were analyzed by LC/MS-MS. Pharmacokinetic parameters (non-compartmental model) were assessed with WinNonlin software. The pharmacokinetic parameters assessed were the area under the plasma concentration-time curve from time 0 to the time of last measurable concentration (AUC0-t), the AUC from time zero to infinity (AUC0-∞), the peak plasma concentration of the drug (Cmax), the time needed to reach maximum concentration (Tmax), the elimination half-life (t1/2), and the terminal elimination rate (λz). All were analyzed using an analysis of variance (ANOVA) model after logarithmic transformation of the data. To establish the bioequivalence (BE) for capecitabine, reference-scaled average bioequivalence (RSABE) acceptance criteria and average bioequivalence (ABE) acceptance criteria were used. Safety and tolerability were assessed during the entire study period. RESULTS Reference scaled maximum plasma concentration (Cmax) was higher than 0.294, permitting use of RSABE. The within-subject SDs of the reference intervention (SWR) for AUC0-t and AUC0-∞ were < 0.294, meeting ABE criteria. The point estimate for the geometric least squares mean (GLSM) ratio for the point estimate of Cmax was 0.962, within the range of 0.80-1.25. The 90% upper confidence boundary for the test/reference of GLSM ratios was 97.84-105.40% for AUC0-t and 97.33-103.51% for AUC0-∞, all of which were within the prespecified limits. The 90% confidence intervals for AUC0-t and AUC0-∞ and 95% upper confidence limit for Cmax indicated bioequivalence. No serious adverse events were found among the subjects. CONCLUSIONS According to the criteria for bioequivalence, the test formulation was bioequivalent to the reference formulation in terms of the rate and extent of absorption under fed conditions by measurement of total capecitabine and was safe and well tolerated. TRIAL REGISTRATION NCT04420871.
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Queckenberg C, Erlinghagen V, Baken BCM, Van Os SHG, Wargenau M, Kubeš V, Peroutka R, Novotný V, Fuhr U. Pharmacokinetics and pharmacogenetics of capecitabine and its metabolites following replicate administration of two 500 mg tablet formulations. Cancer Chemother Pharmacol 2015; 76:1081-91. [PMID: 26242222 DOI: 10.1007/s00280-015-2840-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 07/27/2015] [Indexed: 12/27/2022]
Abstract
PURPOSE To describe concentration versus time profiles of capecitabine and its metabolites 5'-DFUR, 5'-DFCR and 5-FU, depending on tablet formulation and on frequent and/or relevant genetic polymorphisms of cytidine deaminase, dihydropyrimidine dehydrogenase, thymidylate synthase and methylenetetrahydrofolate reductase (MTHFR). METHODS In 46 cancer patients on chronic capecitabine treatment, who voluntarily participated in the study, individual therapeutic doses were replaced on four consecutive mornings by the study medication. The appropriate number of 500 mg test (T) or reference (R) capecitabine tablets was given in randomly allocated sequences TRTR or RTRT (replicate design). Average bioavailability was assessed by ANOVA. RESULTS Thirty female and 16 male patients suffering from gastrointestinal or breast cancer (mean age 53.4 years; mean dose 1739 mg) were included. The T/R ratios for AUC0-t(last) and C max were 96.7 % (98 % CI 90.7-103.2 %) and 87.2 % (98 % CI 74.9-101.5 %), respectively. Within-subject variability for AUC0-t(last) and C max (coefficient of variation for R) was 16.5 and 30.2 %, respectively. Similar results were seen for all metabolites. No serious adverse events occurred. For the MTHFR C677T (rs1801133) genotype, an increasing number of 677C alleles showed borderline correlation with an increasing elimination half-life of capecitabine (p = 0.043). CONCLUSIONS The extent of absorption was similar for T and R, but the rate of absorption was slightly lower for T. While such differences are not considered as clinically relevant, formal bioequivalence criteria were missed. A possible, probably indirect role of the MTHFR genotype in pharmacokinetics of capecitabine and/or 5-FU should be investigated in further studies.
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Affiliation(s)
- Christian Queckenberg
- Department of Pharmacology, University of Cologne, Cologne, Germany. .,Clinical Trials Centre Cologne, Medical Faculty, University of Cologne, Gleueler Str. 269, 50935, Cologne, Germany.
| | - V Erlinghagen
- Department of Pharmacology, University of Cologne, Cologne, Germany
| | | | | | - M Wargenau
- M.A.R.C.O. GmbH & Co. KG, Düsseldorf, Germany
| | - V Kubeš
- Quinta-Analytica S.r.o., Prague, Czech Republic
| | - R Peroutka
- Quinta-Analytica S.r.o., Prague, Czech Republic
| | - V Novotný
- Quinta-Analytica S.r.o., Prague, Czech Republic
| | - U Fuhr
- Department of Pharmacology, University of Cologne, Cologne, Germany
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van Kuilenburg AB, Maring JG. Evaluation of 5-fluorouracil pharmacokinetic models and therapeutic drug monitoring in cancer patients. Pharmacogenomics 2014; 14:799-811. [PMID: 23651027 DOI: 10.2217/pgs.13.54] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
5-fluorouracil (5-FU) remains the cornerstone of all currently applied regimens for the treatment of patients with cancers of the gastrointestinal tract, breast, and head and neck. Unfortunately, a large variation in the clearance of 5-FU has been observed between patients, suggesting that some patients might receive nonoptimal 5-FU doses. However, therapeutic drug monitoring of 5-FU has been shown to result in reduced intra- and inter-individual variability in 5-FU plasma levels and pharmacokinetically guided dose adjustments of 5-FU-containing therapy results in a significantly improved efficacy and tolerability. To date, compartmental Michaelis-Menten elimination-based modeling has proven to be a sensitive and accurate tool for analyzing the pharmacokinetics of 5-FU and to identify patients with a dihydropyrimidine dehydrogenase deficiency. These Michaelis-Menten models also allow the use of a limited sampling strategy and offer the opportunity to predict a priori the 5-FU plasma concentrations in patients receiving adapted doses of 5-FU.
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Affiliation(s)
- André Bp van Kuilenburg
- Academic Medical Center, University of Amsterdam, Emma Children's Hospital & Department of Clinical Chemistry, Laboratory Genetic Metabolic Diseases, F0-220, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands.
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