Article
作者: Jin, Zhili ; Wang, Yan ; Zhu, Cong ; Song, Yuqin ; Wu, Jingxuan ; Wu, Xiaofang ; Sheng, Qing ; Liu, Zhen ; Chen, Jingcheng ; Ji, Tao ; Yang, Jing ; Chen, Yaoyu ; Liang, Jiaqi ; Li, Jiangshuo ; Liu, Xipan ; Dong, Ruihua ; Liang, Wenheng ; Zhang, Xiaobin
BACKGROUND AND PURPOSE:Tyrosine kinase 2 (Tyk2) inhibitors hold therapeutic promise for patients with inflammatory conditions driven by interleukin (IL)-12/23 signalling. ARTS-011 [6-(cyclopropanecarboxamido)-4-((2-methoxy-3-(3-methyl-1H-1,2,4-triazol-1-yl)phenyl)amino)-N-(methyl-d3)pyridazine-3-carboxamide] is a novel chemical agent that acts as a small-molecule allosteric inhibitor of Tyk2, selectively targeting the JH2 domain of the Tyk2 protein. A first-in-human, single and multiple ascending dose (SAD and MAD) clinical study was conducted to evaluate the tolerability, safety, pharmacokinetic profile and food effects of the Tyk2 inhibitor ARTS-011.
EXPERIMENTAL APPROACH:This study is registered at ClinicalTrials.gov under the identifier NCT06260527. The study consisted of three parts: - Part A was a SAD cohort and Part B was a MAD cohort both conducted in Chinese healthy subjects, using a randomized, double-blind, placebo-controlled design. Part C was a randomized, open-label, two-period, crossover study designed to investigate the food effects on ARTS-011.
KEY RESULTS:Single oral doses ranging from 3 to 60 mg and multiple oral doses ranging from 10 to 40 mg of ARTS-011 demonstrated favourable safety and tolerability profiles in healthy subjects. Furthermore, ARTS-011 was well-tolerated under both fasting and fed conditions following a single 20 mg dose. The 90% confidence interval of the geometric mean ratio of area under the concentration-time curve (AUC) fell entirely within the bioequivalence criteria (80.00%-125.00%), indicating no food effect on AUC.
CONCLUSION AND IMPLICATIONS:ARTS-011 is a promising oral Tyk2 inhibitor with an acceptable safety profile and potential for once-daily dosing. These results support further clinical development of ARTS-011 in patients with inflammatory and autoimmune diseases.