1. A multicenter, randomized phase III trial of hetrombopag: a novel thrombopoietin receptor agonist for the treatment of immune thrombocytopenia
- Author
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Heng Mei, Xiaofan Liu, Yan Li, Hu Zhou, Ying Feng, Guangxun Gao, Peng Cheng, Ruibin Huang, Linhua Yang, Jianda Hu, Ming Hou, Yazhou Yao, Li Liu, Yi Wang, Depei Wu, Liansheng Zhang, Changcheng Zheng, Xuliang Shen, Qi Hu, Jing Liu, Jie Jin, Jianmin Luo, Yun Zeng, Sujun Gao, Xiaohui Zhang, Xin Zhou, Qingzhi Shi, Ruixiang Xia, Xiaobao Xie, Zhongxing Jiang, Li Gao, Yuansong Bai, Junye Xiong, Runzi Li, Jianjun Zou, Ting Niu, Renchi Yang, and Yu Hu
- Subjects
Immune thrombocytopenia ,Hetrombopag ,Thrombopoietin receptor agonists ,Platelet response ,Diseases of the blood and blood-forming organs ,RC633-647.5 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Hetrombopag, a novel thrombopoietin receptor agonist, has been found in phase I studies to increase platelet counts and reduce bleeding risks in adults with immune thrombocytopenia (ITP). This phase III study aimed to evaluate the efficacy and safety of hetrombopag in ITP patients. Methods Patients who had not responded to or had relapsed after previous treatment were treated with an initial dosage of once-daily 2.5 or 5 mg hetrombopag (defined as the HETROM-2.5 or HETROM-5 group) or with matching placebo in a randomized, double-blind, 10-week treatment period. Patients who received placebo and completed 10 weeks of treatment switched to receive eltrombopag, and patients treated with hetrombopag in the double-blind period continued hetrombopag during the following open-label 14-week treatment. The primary endpoint was the proportion of responders (defined as those achieving a platelet count of ≥ 50 × 109/L) after 8 weeks of treatment. Results The primary endpoint was achieved by significantly more patients in the HETROM-2.5 (58.9%; odds ratio [OR] 25.97, 95% confidence interval [CI] 9.83–68.63; p
- Published
- 2021
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