Wei-Wei Jia , Nan-Nan Tian , Zi-Jing Song , Xiao-Fang Lan , Xi-He Yang , Fei-Fei Du , Feng-Qing Wang , Chen Cheng , Xiao-Yan Xia , Yi-Mei Zeng , Ying Rao , Jun-Ling Yang , Chuan Li
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引用次数: 0
Abstract
Background
Intravenous ginsenosides, derived from Panax species, are widely used in China. XueShuanTong injection, enriched with ginsenosides Rb1 and Rg1, is recommended for unstable angina treatment. Although effective, it may cause adverse effects, especially in patients with renal or hepatic impairment, as these organs are vital in ginsenosides’ systemic exposure.
Purpose
This investigation aimed to inform precision medicine by employing a physiologically based pharmacokinetic (PBPK) model to evaluate transporter-mediated interactions between both ginsenosides and their systemic exposure in patients with organ impairment, thereby ensuring safety.
Methods
Interactions between ginsenosides Rb1 and Rg1, mediated by human and rat transporters, were characterized at both cellular and vesicular levels. Their interactions with human organic anion-transporting polypeptide (OATP)1B3 and rat Oatp1b2 were evaluated when administered together or as part of XueShuanTong in both rats and humans. PBPK models incorporating OATP-mediated hepatobiliary excretion were developed to characterize their interactions and pharmacokinetics, providing guidance for precision medicine in these patients.
Results
Ginsenoside Rb1 was demonstrated to inhibit human OATP1B3 (Oatp1b2 in rats)-mediated cellular uptake, significantly increasing exposure levels of ginsenoside Rg1 in rats by impairing hepatobiliary elimination. Mechanistic models effectively replicated the pharmacokinetic profiles and the interactions of ginsenosides Rb1 and Rg1. These validated models revealed that decreases in GFR, hematocrit, hepatic volume, and/or OATP1B3 expression and activity in patients with renal or hepatic impairment significantly increased the systemic exposure levels of both ginsenosides. Moreover, the models provided valuable insights into the mechanism of “albumin-facilitated dissociation” associated with ginsenoside Rb1, an OATP1B3 inhibitor. This understanding is crucial for predicting the risk of drug-drug interactions involving drugs with high plasma protein binding.
Conclusions
By incorporating these key patient-specific physiological parameters into the models, this investigation provides practical guidance for optimizing dosing strategies and improving the therapeutic efficacy of ginsenoside-containing injections, including XueShuanTong, in patients with complex conditions.
期刊介绍:
Phytomedicine is a therapy-oriented journal that publishes innovative studies on the efficacy, safety, quality, and mechanisms of action of specified plant extracts, phytopharmaceuticals, and their isolated constituents. This includes clinical, pharmacological, pharmacokinetic, and toxicological studies of herbal medicinal products, preparations, and purified compounds with defined and consistent quality, ensuring reproducible pharmacological activity. Founded in 1994, Phytomedicine aims to focus and stimulate research in this field and establish internationally accepted scientific standards for pharmacological studies, proof of clinical efficacy, and safety of phytomedicines.