Yi Xu, Fen Tian, Hong Ren, Xian Yu, Xiaoyu Chen, Kun Ye, Feifei Sun, Lin Fang, Yuan Li, Rongxin Ban, Xin Jiang, Chenjing Wang, Yaping Ma, Fu Kuang, Xin Li, Zhigao Zhang, Chaobaihui Ye, Min Hu, Feng He, Chang Shu, Yanfang Zou, Rong Huang, Kai Shen, Guangqun Xing, Yu Cao
{"title":"HRS-5965，一种小分子因子B抑制剂，用于健康参与者和肾功能不全参与者：一项首次人体1期试验","authors":"Yi Xu, Fen Tian, Hong Ren, Xian Yu, Xiaoyu Chen, Kun Ye, Feifei Sun, Lin Fang, Yuan Li, Rongxin Ban, Xin Jiang, Chenjing Wang, Yaping Ma, Fu Kuang, Xin Li, Zhigao Zhang, Chaobaihui Ye, Min Hu, Feng He, Chang Shu, Yanfang Zou, Rong Huang, Kai Shen, Guangqun Xing, Yu Cao","doi":"10.1016/j.medj.2025.100698","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>HRS-5965 is an oral selective small-molecule inhibitor of complement factor B, a key component of the alternative pathway. This study assessed the safety, tolerability, pharmacokinetics, and pharmacodynamics of HRS-5965 in healthy participants and participants with renal insufficiency.</p><p><strong>Methods: </strong>The first-in-human, phase 1 study consisted of 3 parts (ClinicalTrials.gov: NCT05505955). Part 1 was a single-ascending-dose, randomized, double-blind study with 5 dose groups preset, including a food effect evaluation. Part 2 was a multiple-ascending-dose, randomized, double-blind study with 9 dose groups preset. Part 3 was an open-label, single-dose study on severe renal insufficiency. The primary endpoints were safety and tolerability.</p><p><strong>Findings: </strong>A total of 82 participants were enrolled and received either HRS-5965 or placebo (26 in part 1, 40 in part 2, and 16 in part 3). HRS-5965 was well tolerated. Treatment-emergent adverse events were comparable between the HRS-5965 groups and placebo groups in part 1 (17/20 [85.0%] vs. 6/6 [100.0%]) and part 2 (27/30 [90.0%] vs. 10/10 [100.0%]). No deaths were reported. HRS-5965 was absorbed rapidly, with a median time to reach peak concentration (T<sub>max</sub>) ranging from 0.75 to 1.50 h in fasted states and 2.00 h in fed states. Pharmacokinetics was nonlinear, and food delayed the absorption of HRS-5965 but did not impact the exposure. Alternative pathway activity was inhibited by over 80% with HRS-5965, compared to less than 20% with placebo.</p><p><strong>Conclusion: </strong>HRS-5965 demonstrated favorable safety and robust inhibition of alternative pathway activity, supporting further clinical development.</p><p><strong>Funding: </strong>The study was funded by Jiangsu Hengrui Pharmaceuticals Co., Ltd.</p>","PeriodicalId":29964,"journal":{"name":"Med","volume":" ","pages":"100698"},"PeriodicalIF":12.8000,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"HRS-5965, a small-molecule factor B inhibitor, in healthy participants and participants with renal insufficiency: A first-in-human, phase 1 trial.\",\"authors\":\"Yi Xu, Fen Tian, Hong Ren, Xian Yu, Xiaoyu Chen, Kun Ye, Feifei Sun, Lin Fang, Yuan Li, Rongxin Ban, Xin Jiang, Chenjing Wang, Yaping Ma, Fu Kuang, Xin Li, Zhigao Zhang, Chaobaihui Ye, Min Hu, Feng He, Chang Shu, Yanfang Zou, Rong Huang, Kai Shen, Guangqun Xing, Yu Cao\",\"doi\":\"10.1016/j.medj.2025.100698\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>HRS-5965 is an oral selective small-molecule inhibitor of complement factor B, a key component of the alternative pathway. This study assessed the safety, tolerability, pharmacokinetics, and pharmacodynamics of HRS-5965 in healthy participants and participants with renal insufficiency.</p><p><strong>Methods: </strong>The first-in-human, phase 1 study consisted of 3 parts (ClinicalTrials.gov: NCT05505955). Part 1 was a single-ascending-dose, randomized, double-blind study with 5 dose groups preset, including a food effect evaluation. Part 2 was a multiple-ascending-dose, randomized, double-blind study with 9 dose groups preset. Part 3 was an open-label, single-dose study on severe renal insufficiency. The primary endpoints were safety and tolerability.</p><p><strong>Findings: </strong>A total of 82 participants were enrolled and received either HRS-5965 or placebo (26 in part 1, 40 in part 2, and 16 in part 3). HRS-5965 was well tolerated. Treatment-emergent adverse events were comparable between the HRS-5965 groups and placebo groups in part 1 (17/20 [85.0%] vs. 6/6 [100.0%]) and part 2 (27/30 [90.0%] vs. 10/10 [100.0%]). No deaths were reported. HRS-5965 was absorbed rapidly, with a median time to reach peak concentration (T<sub>max</sub>) ranging from 0.75 to 1.50 h in fasted states and 2.00 h in fed states. Pharmacokinetics was nonlinear, and food delayed the absorption of HRS-5965 but did not impact the exposure. Alternative pathway activity was inhibited by over 80% with HRS-5965, compared to less than 20% with placebo.</p><p><strong>Conclusion: </strong>HRS-5965 demonstrated favorable safety and robust inhibition of alternative pathway activity, supporting further clinical development.</p><p><strong>Funding: </strong>The study was funded by Jiangsu Hengrui Pharmaceuticals Co., Ltd.</p>\",\"PeriodicalId\":29964,\"journal\":{\"name\":\"Med\",\"volume\":\" \",\"pages\":\"100698\"},\"PeriodicalIF\":12.8000,\"publicationDate\":\"2025-05-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Med\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1016/j.medj.2025.100698\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MEDICINE, RESEARCH & EXPERIMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Med","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1016/j.medj.2025.100698","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MEDICINE, RESEARCH & EXPERIMENTAL","Score":null,"Total":0}
HRS-5965, a small-molecule factor B inhibitor, in healthy participants and participants with renal insufficiency: A first-in-human, phase 1 trial.
Background: HRS-5965 is an oral selective small-molecule inhibitor of complement factor B, a key component of the alternative pathway. This study assessed the safety, tolerability, pharmacokinetics, and pharmacodynamics of HRS-5965 in healthy participants and participants with renal insufficiency.
Methods: The first-in-human, phase 1 study consisted of 3 parts (ClinicalTrials.gov: NCT05505955). Part 1 was a single-ascending-dose, randomized, double-blind study with 5 dose groups preset, including a food effect evaluation. Part 2 was a multiple-ascending-dose, randomized, double-blind study with 9 dose groups preset. Part 3 was an open-label, single-dose study on severe renal insufficiency. The primary endpoints were safety and tolerability.
Findings: A total of 82 participants were enrolled and received either HRS-5965 or placebo (26 in part 1, 40 in part 2, and 16 in part 3). HRS-5965 was well tolerated. Treatment-emergent adverse events were comparable between the HRS-5965 groups and placebo groups in part 1 (17/20 [85.0%] vs. 6/6 [100.0%]) and part 2 (27/30 [90.0%] vs. 10/10 [100.0%]). No deaths were reported. HRS-5965 was absorbed rapidly, with a median time to reach peak concentration (Tmax) ranging from 0.75 to 1.50 h in fasted states and 2.00 h in fed states. Pharmacokinetics was nonlinear, and food delayed the absorption of HRS-5965 but did not impact the exposure. Alternative pathway activity was inhibited by over 80% with HRS-5965, compared to less than 20% with placebo.
Conclusion: HRS-5965 demonstrated favorable safety and robust inhibition of alternative pathway activity, supporting further clinical development.
Funding: The study was funded by Jiangsu Hengrui Pharmaceuticals Co., Ltd.
期刊介绍：
Med is a flagship medical journal published monthly by Cell Press, the global publisher of trusted and authoritative science journals including Cell, Cancer Cell, and Cell Reports Medicine. Our mission is to advance clinical research and practice by providing a communication forum for the publication of clinical trial results, innovative observations from longitudinal cohorts, and pioneering discoveries about disease mechanisms. The journal also encourages thought-leadership discussions among biomedical researchers, physicians, and other health scientists and stakeholders. Our goal is to improve health worldwide sustainably and ethically.
Med publishes rigorously vetted original research and cutting-edge review and perspective articles on critical health issues globally and regionally. Our research section covers clinical case reports, first-in-human studies, large-scale clinical trials, population-based studies, as well as translational research work with the potential to change the course of medical research and improve clinical practice.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
