Biotransformation and disposition characteristics of HSK7653, a novel long‐acting dipeptidyl peptidase‐4 inhibitor for the treatment of type 2 diabetes

Aim To investigate the metabolism and disposition characteristics of HSK7653 in healthy male Chinese participants. Methods A single oral dose of 80 μCi (25 mg) [14C]HSK7653 capsules was administered to six healthy participants, and blood, plasma, urine and faeces were collected. Quantitative and qua...

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Published in:Diabetes, obesity & metabolism obesity & metabolism, 2024-07, Vol.26 (7), p.2860-2868
Main Authors: Bian, Yi‐cong, Meng, Jian, Hu, Tao, Ma, Sheng, Huang, Chen‐rong, Zhang, Feng‐yi, Wu, Qing‐he, Zhang, Hua, Chen, Xiao‐yan, Miao, Li‐yan
Format: Article
Language:English
Subjects:
Biotransformation
Blood cells
Diabetes
Diabetes mellitus (non-insulin dependent)
Drug dosages
Feces
HSK7653
long‐acting dipeptidyl peptidase‐4 inhibitor
mass balance
Metabolic pathways
Metabolism
Metabolites
Pharmacokinetics
Plasma
Radioactivity
radiolabelled
Sulfonamides
Urine
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Summary:Aim To investigate the metabolism and disposition characteristics of HSK7653 in healthy male Chinese participants. Methods A single oral dose of 80 μCi (25 mg) [14C]HSK7653 capsules was administered to six healthy participants, and blood, plasma, urine and faeces were collected. Quantitative and qualitative analysis was conducted to investigate the pharmacokinetics, blood‐to‐plasma ratio, mass balance and metabolism of HSK7653. Results The drug was well absorbed and reached a maximum concentration at 1.25 h. The drug‐related components (HSK7653 and its metabolites) were eliminated slowly, with a half‐life (t1/2) of 111 h. Unchanged HSK7653 contributed to more than 97% of the total radioactivity in all plasma samples. The blood‐to‐plasma ratio (0.573‐0.845) indicated that HSK7653 did not tend to distribute into blood cells. At 504 h postdose, up to 95.9% of the dose was excreted, including 79.8% in urine and 16.1% in faeces. Most of the radioactivity (75.5% dose) in excreta was unchanged HSK7653. In addition, nine metabolites were detected in urine and faeces. The most abundant metabolite was M6‐2, a dioxidation product of HSK7653, which accounted for 4.73% and 2.63% of the dose in urine and faeces, respectively. The main metabolic pathways of HSK7653 in vivo included oxidation, pyrrole ring opening and sulphonamide hydrolysation. Conclusion HSK7653 was well absorbed, slightly metabolized and slowly excreted in humans. The high plasma exposure and long t1/2 of HSK7653 may contribute to its long‐lasting efficacy as a long‐acting dipeptidyl peptidase‐4 inhibitor.
ISSN:1462-8902
1463-1326
DOI:10.1111/dom.15605