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Zhang L, Gan L, Li K, Xie P, Tan Y, Wei G, Yuan X, Pratt R, Zhou Y, Hui AM, Fang Y, Zuo L, Zheng Q. Ethnicity evaluation of ferric pyrophosphate citrate among Asian and Non-Asian populations: a population pharmacokinetics analysis. Eur J Clin Pharmacol 2022; 78:1421-1434. [PMID: 35711066 PMCID: PMC9365747 DOI: 10.1007/s00228-022-03328-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 04/24/2022] [Indexed: 11/27/2022]
Abstract
PURPOSE To evaluate the potential ethnic differences of ferric pyrophosphate citrate (FPC, Triferic) in healthy subjects and patients with hemodialysis-dependent stage 5 chronic kidney disease (CKD-5HD) and identify covariates that may influence pharmacokinetics (PK) of FPC. METHODS Data were collected from 2 Asian and 4 non-Asian clinical studies involving healthy subjects and CKD-5HD patients. Three population PK models were developed: M1 for intravenous (IV) administration of FPC in healthy subjects; M2 for dialysate administration of FPC in CKD-5HD patients; M3 for pre-dialyzer administration of FPC in CKD-5HD patients. All the models were fitted to concentration versus time data of FPC using the nonlinear mixed effect approach with the NONMEM® program. All statistical analyses were performed using SAS version 9.4. RESULTS In total, 26 Asians and 65 non-Asians were included in the final model analysis database. Forty healthy subjects were administered FPC via intravenous (IV) route and 51 patients with CKD-5HD via dialysate (N = 50) and pre-dialyzer blood circuit administration (N = 51). The PK parameters of FPC IV were similar. The population PK model showed good parameter precision and reliability as shown by model evaluation, and no relevant influence of ethnicity on PK parameters was observed. In healthy subjects, the maximum observed plasma concentration (Cmax) and area under the plasma concentration-time curve (AUC) decreased with increase in lean body mass (LBM) and the average serum total iron at 6 h before the baseline period (Feav), whereas, in both patient populations, Cmax and AUC decreased with increase in LBM and decrease in Febaseline. Other factors such as gender, age, Feav, and ethnicity had no influence on PK exposures in patients. The influence of LBM on PK exposures in patients was smaller than that in healthy subjects (ratio of AUC0-24 for the 5th [68 kg] and 95th [45 kg] patient's LBM was almost 1). The influence of Feav and LBM on PK exposures was < 50%. CONCLUSION The population pharmacokinetics model successfully described the PK parameters of FPC in healthy subjects and CKD-5HD patients and were comparable between Asian and non-Asian populations.
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Affiliation(s)
- Lingxiao Zhang
- Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Liangying Gan
- Department of Nephrology, Peking University People's Hospital, Beijing, China
| | - Kexin Li
- Clinical trial center, Beijing hospital, National center of gerontology, Institute of geriatric medicine, Chinese academy of medical sciences, Assessment of Clinical Drugs Risk and Individual Application Key Laboratory, Beijing, China
| | - Panpan Xie
- Clinical trial center, Beijing hospital, National center of gerontology, Institute of geriatric medicine, Chinese academy of medical sciences, Assessment of Clinical Drugs Risk and Individual Application Key Laboratory, Beijing, China
| | - Yan Tan
- Global R&D Center, Shanghai Fosun Pharmaceutical Development, Co, Ltd, Shanghai, China
| | - Gang Wei
- Global R&D Center, Shanghai Fosun Pharmaceutical Development, Co, Ltd, Shanghai, China
| | - Xiaojuan Yuan
- Jiangsu Wanbang Biopharmaceuticals Co., Ltd, Xuzhou, China
| | | | - Yongchun Zhou
- Jiangsu Wanbang Biopharmaceuticals Co., Ltd, Xuzhou, China
| | - Ai-Min Hui
- Global R&D Center, Shanghai Fosun Pharmaceutical Development, Co, Ltd, Shanghai, China
| | - Yi Fang
- Department of Pharmacy, Peking University People's Hospital, Beijing, China.
| | - Li Zuo
- Department of Nephrology, Peking University People's Hospital, Beijing, China.
| | - Qingshan Zheng
- Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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Xue W, Tan Y, Liu Y, Xu C, Cong D, Zhong L, Song J, Hui A, Qi W, Wang J, Liu X, Li K. Pharmacokinetics of Opicapone and Its Metabolites in Healthy White and Chinese Subjects. Clin Pharmacol Drug Dev 2021; 10:1316-1324. [PMID: 33864709 DOI: 10.1002/cpdd.922] [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: 12/21/2020] [Accepted: 01/28/2021] [Indexed: 02/04/2023]
Abstract
Opicapone (OPC) is a third-generation catechol-O-methyltransferase inhibitor developed to treat Parkinson disease and motor fluctuations. This open-label, single-center, phase 1 study aimed to evaluate the pharmacokinetics (PK) of OPC and its metabolites when administered as single and multiple doses in healthy White and Chinese subjects. The study enrolled a total of 30 White and Chinese healthy subjects, equally balanced among groups. The first dose of OPC was administered orally as a single dose of 50 mg on day 1, followed by a 10-day once-daily treatment from day 5 to day 14. Plasma concentrations of OPC and its metabolites were measured at 0 to 72 and 0 to 144 hours after dosing for single dose and multiple dose, respectively. Moreover, urine concentrations of OPC and its metabolite were measured 0 to 24 hours after dosing. PK parameters were derived from noncompartmental analysis. Geometric mean ratios and 90% confidence intervals for the main PK parameters were conducted to evaluate the ethnic difference between White and Chinese subjects. The plasma and urine exposure of OPC and its metabolites in Chinese subjects were similar to those in White subjects. These results indicated that ethnicity had no significant impact on PK of OPC between White and Chinese subjects.
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Affiliation(s)
- Wei Xue
- Clinical Trial Center, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Assessment of Clinical Drugs Risk and Individual Application Key Laboratory, Chinese Academy of Medical Sciences, Beijing, China
| | - Yan Tan
- Clinical Research Department, Shanghai Fosun Pharmaceutical Industrial Development Co., Ltd, Shanghai, China
| | - Yue Liu
- Clinical Trial Center, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Assessment of Clinical Drugs Risk and Individual Application Key Laboratory, Chinese Academy of Medical Sciences, Beijing, China
| | - Changjiang Xu
- Clinical Research Department, Shanghai Fosun Pharmaceutical Industrial Development Co., Ltd, Shanghai, China
| | - Duanduan Cong
- Clinical Trial Center, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Assessment of Clinical Drugs Risk and Individual Application Key Laboratory, Chinese Academy of Medical Sciences, Beijing, China
| | - Liping Zhong
- Clinical Research Department, Shanghai Fosun Pharmaceutical Industrial Development Co., Ltd, Shanghai, China
| | - Jie Song
- Clinical Research Department, Shanghai Fosun Pharmaceutical Industrial Development Co., Ltd, Shanghai, China
| | - Aimin Hui
- Clinical Research Department, Shanghai Fosun Pharmaceutical Industrial Development Co., Ltd, Shanghai, China
| | - Wenyuan Qi
- Clinical Trial Center, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Assessment of Clinical Drugs Risk and Individual Application Key Laboratory, Chinese Academy of Medical Sciences, Beijing, China
| | - Juan Wang
- Clinical Trial Center, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Assessment of Clinical Drugs Risk and Individual Application Key Laboratory, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaohui Liu
- Clinical Trial Center, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Assessment of Clinical Drugs Risk and Individual Application Key Laboratory, Chinese Academy of Medical Sciences, Beijing, China
| | - Kexin Li
- Clinical Trial Center, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Assessment of Clinical Drugs Risk and Individual Application Key Laboratory, Chinese Academy of Medical Sciences, Beijing, China
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Shah RR, Gaedigk A. Precision medicine: does ethnicity information complement genotype-based prescribing decisions? Ther Adv Drug Saf 2018; 9:45-62. [PMID: 29318005 PMCID: PMC5753996 DOI: 10.1177/2042098617743393] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 10/30/2017] [Indexed: 12/16/2022] Open
Abstract
Inter-ethnic differences in drug response are all too well known. These are underpinned by a number of factors, including pharmacogenetic differences across various ethnic populations. Precision medicine relies on genotype-based prescribing decisions with the aim of maximizing efficacy and mitigating the risks. When there is no access to genotyping tests, ethnicity is frequently regarded as a proxy of the patient's probable genotype on the basis of overall population-based frequency of genetic variations in the ethnic group the patient belongs to, with some variations being ethnicity-specific. However, ever-increasing transcontinental migration of populations and the resulting admixing of populations have undermined the utility of self-identified ethnicity in predicting the genetic ancestry, and therefore the genotype, of the patient. An example of the relevance of genetic ancestry of a patient is the inadequate performance of European-derived pharmacogenetic dosing algorithms of warfarin in African Americans, Brazilians and Caribbean Hispanics. Consequently, genotyping a patient potentially requires testing for all known clinically actionable variants that the patient may harbour, and new variants that are likely to be identified using state-of the art next-generation sequencing-based methods. Furthermore, self-identified ethnicity is associated with a number of ethnicity-related attributes and non-genetic factors that potentially influence the risk of phenoconversion (genotype-phenotype discordance), which may adversely impact the success of genotype-based prescribing decisions. Therefore, while genotype-based prescribing decisions are important in implementing precision medicine, ethnicity should not be disregarded.
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Affiliation(s)
- Rashmi R. Shah
- Pharmaceutical Consultant, 8 Birchdale, Gerrards Cross, Buckinghamshire, SL9 7JA, UK
| | - Andrea Gaedigk
- Director, Pharmacogenetics Core Laboratory, Clinical Pharmacology, Toxicology & Therapeutic Innovation, Children’s Mercy-Kansas City, Kansas City, MO and School of Medicine, University of Missouri-Kansas City, MO, USA
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