Abstract
Background
Felbinac trometamol, an anti-inflammatory and analgesic drug, has been used to treat immediate postoperative pain.
Objective
The aim of this study was to evaluate the safety, tolerability, and pharmacokinetics of single or multiple intravenous infusions of felbinac trometamol in healthy Chinese volunteers.
Methods
A total of 56 healthy subjects were enrolled in a single-ascending dose study (11.78–377.00 mg), meanwhile 36 subjects were enrolled in a multiple-ascending dose study (47.13–188.50 mg). Safety endpoints included treatment-emergent adverse events, vital signs, electrocardiograms, and laboratory parameters. Pharmacokinetic endpoints included exposure of subjects to felblinac and metabolites of the drug in plasma, urine, and feces.
Results
Felblinac time to maximum plasma concentration was obtained at 0.5 h, corresponding to the end of the infusion. Maximum plasma concentration and area under the curve increased in a dose-dependent manner for felblinac and its metabolite, showing linear pharmacokinetic characteristics at single and multiple doses. After intravenous infusions of multiple doses three times (30 min each time) per day, the accumulation ratio of felblinac and its metabolite based on the area under the curve had a range of 1.34–1.45 and 1.60–1.87, respectively, across cohorts. After administration of the fourth dose, the plasma concentration of both felblinac and its metabolites was maintained at a steady state. Felbinac trometamol was well tolerated. Neither treatment-emergent adverse event frequency nor severity increased with increasing felbinac trometamol dose.
Conclusions
Felbinac trometamol was well tolerated in our study. Based on the dose range in this study, 94.25 mg is the recommended target dose for a phase II study.
Clinical Trial Registration
CTR20170496 and CTR20180896. The dates of registration are 2017-06-19 and 2018-07-02 (https://www.chinadrugtrials.org.cn/).
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Acknowledgements
The authors thank the volunteers enrolled in this trial, as well as the staff who contributed to this trial. The authors also express their gratitude to Mr. Jianfei Li (Clinical Project Manager at Shijiazhuang Yiling Pharmaceutical Co., Ltd.) for his contributions to the management of the trial.
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Funding
This project was financially sponsored by the following programs: National Major Scientific and Technological Special Project for Significant New Drug Development during the Thirteenth Five-Year Plan Period of China (Project: 2017ZX09304004, 2017ZX09101001-002-004), the National Natural Science Foundation of China (Project: 81602897), the program for JLU Science and Technology Innovative Research Team (2017TD-08), and the Fundamental Research Funds for the Central Universities.
Conflict of Interest
Min Wu, Cuiyun Li, Hong Zhang, Jixuan Sun, Xiaoxue Zhu, Xiaojiao Li, Xuedong Gao, Wei Wang, Yanhua Ding and Li Liu have no conflicts of interest that are directly relevant to the content of this article.
Ethics approval
The clinical study protocol was approved by the Ethics Committee at the Jilin University First Affiliated Hospital-Clinical Research Institute in Changchun City, Jilin Province, China. Clinical procedures were conducted in the Phase I Clinical Trial Unit of the First Hospital of Jilin University. The studies (Registration Nos.: CTR20170496 and CTR20180896, https://www.chinadrugtrials.org.cn/) were conducted in accordance with the Declaration of Helsinki and the Guidelines for Good Clinical Practice.
Informed consent
Written informed consent was obtained from each participant before the study commenced.
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Wu, M., Li, C., Zhang, H. et al. Pharmacokinetics, Safety, and Tolerability of Intravenous Felbinac Trometamol in Healthy Chinese Volunteers: A First-in-Human Single- and Multiple-Dose Escalation Phase I Study with a Randomized, Double-Blind, Placebo-Controlled Design. CNS Drugs 34, 867–877 (2020). https://doi.org/10.1007/s40263-020-00739-z
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DOI: https://doi.org/10.1007/s40263-020-00739-z