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Quan C, Zhou H, Yang H, Jiao Z, Zhang M, Zhang B, Tan G, Bu B, Jin T, Li C, Xue Q, Dong H, Shi F, Qin X, Zhang X, Gao F, Zhang H, Wang J, Hu X, Chen Y, Liu J, Qiu W. Safety of teriflunomide in Chinese adult patients with relapsing multiple sclerosis: A phase IV, 24-week multicenter study. Chin Med J (Engl) 2024:00029330-990000000-00949. [PMID: 38311806 DOI: 10.1097/cm9.0000000000002990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Indexed: 02/06/2024] Open
Abstract
BACKGROUND Disease-modifying therapies have been approved for the treatment of relapsing multiple sclerosis (RMS). The present study aims to examine the safety of teriflunomide in Chinese patients with RMS. METHODS This non-randomized, multi-center, 24-week, prospective study enrolled RMS patients with variant (c.421C>A) or wild type ABCG2 who received once-daily oral teriflunomide 14 mg. The primary endpoint was the relationship between ABCG2 polymorphisms and teriflunomide exposure over 24 weeks. Safety was assessed over the 24-week treatment with teriflunomide. RESULTS Eighty-two patients were assigned to variant (n = 42) and wild type groups (n = 40), respectively. Geometric mean and geometric standard deviation (SD) of pre-dose concentration (variant, 54.9 [38.0] μg/mL; wild type, 49.1 [32.0] μg/mL) and area under plasma concentration-time curve over a dosing interval (AUCtau) (variant, 1731.3 [769.0] μg∙h/mL; wild type, 1564.5 [1053.0] μg∙h/mL) values at steady state were approximately similar between the two groups. Safety profile was similar and well tolerated across variant and wild type groups in terms of rates of treatment emergent adverse events (TEAE), treatment-related TEAE, grade ≥3 TEAE, and serious adverse events (AEs). No new specific safety concerns or deaths were reported in the study. CONCLUSION ABCG2 polymorphisms did not affect the steady-state exposure of teriflunomide, suggesting a similar efficacy and safety profile between variant and wild type RMS patients. REGISTRATION NCT04410965, https://clinicaltrials.gov.
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Affiliation(s)
- Chao Quan
- Department of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, National Centre for Neurological Disorders, Shanghai 201206, China
| | - Hongyu Zhou
- Department of Neurology, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China
| | - Huan Yang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Zheng Jiao
- Department of Pharmacy, Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Meini Zhang
- Department of Neurology, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030012, China
| | - Baorong Zhang
- Department of Neurology, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Guojun Tan
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Bitao Bu
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Tao Jin
- Department of Neurology, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Chunyang Li
- Department of Neurology, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia 010050, China
| | - Qun Xue
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Huiqing Dong
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Fudong Shi
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Xinyue Qin
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xinghu Zhang
- Center of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Feng Gao
- Department of Neurology, Peking University First Hospital, Beijing100034, China
| | - Hua Zhang
- Department of Neurology, Beijing Hospital, Beijing 100730, China
| | - Jiawei Wang
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730 China
| | - Xueqiang Hu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Yueting Chen
- Department of Pharmacy, Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Jue Liu
- Medical Department, Sanofi Investment Co., Ltd., Shanghai 200040, China
| | - Wei Qiu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China
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Safar Z, Kis E, Erdo F, Zolnerciks JK, Krajcsi P. ABCG2/BCRP: variants, transporter interaction profile of substrates and inhibitors. Expert Opin Drug Metab Toxicol 2019; 15:313-328. [PMID: 30856014 DOI: 10.1080/17425255.2019.1591373] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
INTRODUCTION ABCG2 has a broad substrate specificity and is one of the most important efflux proteins modulating pharmacokinetics of drugs, nutrients and toxicokinetics of toxicants. ABCG2 is an important player in transporter-mediated drug-drug interactions (tDDI). Areas covered: The aims of the review are i) to cover transporter interaction profile of substrates and inhibitors that can be utilized to test interaction of drug candidates with ABCG2, ii) to highlight main characteristics of in vitro testing and iii) to describe the structural basis of the broad substrate specificity of the protein. Preclinical data utilizing Abcg2/Bcrp1 knockouts and clinical studies showing effect of ABCG2 c.421C>A polymorphism on pharmacokinetics of drugs have provided evidence for a broad array of drug substrates and support drug - ABCG2 interaction testing. A consensus on using rosuvastatin and sulfasalazine as intestinal substrates for clinical studies is in the formation. Other substrates relevant to the therapeutic area can be considered. Monolayer efflux assays and vesicular transport assays have been extensively utilized in vitro. Expert opinion: Clinical substrates display complex pharmacokinetics due to broad interaction profiles with multiple transporters and metabolic enzymes. Substrate-dependent inhibition has been observed for several inhibitors. Harmonization of in vitro and in vivo testing makes sense. However, rosuvastatin and sulfasalazine are not efficiently transported in either MDCKII or LLC-PK1-based monolayers. Caco-2 monolayer assays and vesicular transport assays are potential alternatives.
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Affiliation(s)
| | - Emese Kis
- a SOLVO Biotechnology , Szeged , Hungary
| | - Franciska Erdo
- b Faculty of Information Technology and Bionics , Pázmány Péter Catholic University , Budapest , Hungary
| | | | - Peter Krajcsi
- a SOLVO Biotechnology , Szeged , Hungary.,d Department of Morphology and Physiology. Faculty of Health Sciences , Semmelweis University , Budapest , Hungary
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