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The effect of food on the pharmacokinetics of WXFL10203614, a potential selective JAK1 inhibitor, in healthy Chinese subjects

Affiliation
Drug Clinical Trial Institution ,Affiliated Wuxi People’s Hospital of Nanjing Medical University ,Wuxi ,China
Huang, Kai;
Affiliation
Drug Clinical Trial Institution ,Affiliated Wuxi People’s Hospital of Nanjing Medical University ,Wuxi ,China
Shi, Yunfei;
Affiliation
Drug Clinical Trial Institution ,Affiliated Wuxi People’s Hospital of Nanjing Medical University ,Wuxi ,China
Chu, Nannan;
Affiliation
Drug Clinical Trial Institution ,Affiliated Wuxi People’s Hospital of Nanjing Medical University ,Wuxi ,China
Que, Linling;
Affiliation
Drug Clinical Trial Institution ,Affiliated Wuxi People’s Hospital of Nanjing Medical University ,Wuxi ,China
Ding, Ying;
Affiliation
Drug Clinical Trial Institution ,Affiliated Wuxi People’s Hospital of Nanjing Medical University ,Wuxi ,China
Qian, Zhenzhong;
Affiliation
Drug Clinical Trial Institution ,Affiliated Wuxi People’s Hospital of Nanjing Medical University ,Wuxi ,China
Qin, Wei;
Affiliation
Drug Clinical Trial Institution ,Affiliated Wuxi People’s Hospital of Nanjing Medical University ,Wuxi ,China
Gu, Xianghong;
Affiliation
Drug Clinical Trial Institution ,Affiliated Wuxi People’s Hospital of Nanjing Medical University ,Wuxi ,China
Wang, Jiakun;
Affiliation
Wuxi Fuxin Pharmaceutical Research and Development Co., Ltd. ,Wuxi ,China
Zhang, Zhiwei;
Affiliation
Wuxi Fuxin Pharmaceutical Research and Development Co., Ltd. ,Wuxi ,China
Xu, Jianguo;
Affiliation
Drug Clinical Trial Institution ,Affiliated Wuxi People’s Hospital of Nanjing Medical University ,Wuxi ,China
He, Qing

Objective: This study was performed to investigate the effect of food on the pharmacokinetics (PK) of WXFL10203614 in healthy Chinese subjects. Methods: This was a randomized, open-label, single-dose, two-treatment (fed vs fasted), two-period, two-sequence, crossover study. 14 eligible subjects were averagely randomized into 2 sequences and then received 10 mg WXFL10203614 under fasted or fed condition. In each period, the blood samples were collected from 0 h (pre-dose) and serially up to 72 h post-dose, and plasma concentrations were detected using the high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method. The effect of food on the PK profile and safety of WXFL10203614 were assessed. Results: 70 subjects were screened, and 14 subjects (10 male and 4 female) were enrolled and completed the study. Under the fasted condition, WXFL10203614 was absorbed rapidly with a T max of 0.98 h. The absorption rate was slower, T max delayed by 2.98 h, and the C max decreased by 16.3% when WXFL10203614 administered after the high-fat and high-calorie diet, other PK parameters were not affected. The 90% confidence intervals (CIs) for the ratio (fed/fasted) of geometric means of the C max , AUC 0-t and AUC 0-∞ were 0.73–1.01, 0.90–1.03 and 0.90–1.03, indicating that the high-fat and high-calorie diet might impact the absorption process of WXFL10203614. Although the C max was slightly decreased, there was no significant difference in the C max under fasted and fed conditions. Thus, it was not considered clinically significant owing to the small magnitude of changes in C max . All Treatment-emergent adverse events (TEAEs) were mild and resolved spontaneously without treatment. Conclusion: Food had no clinically relevant effects on drug system exposure of WXFL10203614. It was well tolerated under fasted and fed conditions in healthy Chinese subjects, so WXFL10203614 could be administered orally with or without food. Clinical Trial Registration : http://www.chinadrugtrials.org.cn/index.html , identifier CTR20191636.

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License Holder: Copyright © 2022 Huang, Shi, Chu, Que, Ding, Qian, Qin, Gu, Wang, Zhang, Xu and He.

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