Safety, tolerability, and pharmacokinetic of HY0721 in Chinese healthy subjects: A first-in-human randomized, double-blind, placebo-controlled dose escalation phase I study
Mengyu Zhang , Runhan Liu , Ying Wang , Xiaohong Zhu , Zhenlei Wang , Xiaoyu Li , Li Zheng
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引用次数: 0
Abstract
Background
HY0721 is a novel inhibitor of sulfonylurea receptor 1–transient receptor potential melastatin 4 (SUR1-TRPM4) for the treatment of acute ischemic stroke. This study aimed to evaluate the safety, tolerability, and pharmacokinetic (PK) profiles of single and multiple intravenous administration of HY0721 in Chinese healthy subjects.
Methods
The study enrolled 48 and 30 healthy volunteers in the single-ascending dose (SAD) cohort (20, 60, 120, 240, and 320 mg) and multiple-ascending dose (MAD) cohort (60, 120, and 160 mg/bid), respectively, to receive the corresponding dosage of HY0721 or placebo. Safety monitoring included but was not limited to recording adverse events (AEs), vital signs, electrocardiograms, and laboratory tests. The blood samples were collected from subjects to determine the concentrations of HY0721 for PK evaluation.
Results
The administration of HY0721 showed good safety and tolerability up to 320 mg in the SAD study and up to 160 mg twice daily in the MAD study. The most common AE was injection site reaction, and no AE led to discontinuation of administration or subject dropout. The exposures of HY0721 increased greater than dose proportional manner at the dosages of 20 to 320 mg in the SAD study. A linear PK profile was observed following multiple doses ranging from 60 to 160 mg twice daily, with no evidence of accumulation. Additionally, the human effective dose of HY0721 was estimated to be 120 mg.
Conclusion
This study demonstrated the intravenous administration of HY0721 is safe and well-tolerated in Chinese healthy subjects and provided 60 to 160 mg b.i.d. as the recommended dosing range for further clinical trials.
Trial registration
ChinaDrugTrials.Org.cn; No. CTR20202604, 18 December 2020.
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