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中国药学(英文版) ›› 2025, Vol. 34 ›› Issue (3): 269-283.DOI: 10.5246/jcps.2025.03.021

• 【药事管理与临床药学专栏】 • 上一篇    

口服磷酸奥司他韦缓释混悬液的制备及其体内外评价

辛渊蓉1, 窦玉甜1, 陈晓琳1, 冯颖淑3, 刘学盛1, Caleb Kesse Firempong1, 杨丹6, 刘宏飞1,2,*(), 何海冰4,5,*()   

  1. 1. 江苏大学药学院, 江苏 镇江 212013
    2. 江苏苏南药业工业有限公司, 江苏 镇江 212400
    3. 镇江医学院医学化学研究所, 镇江市功能化学重点实验室, 江苏 镇江 212028
    4. 沈阳药科大学药学院, 辽宁 沈阳 110016
    5. 江苏海之宏生物医药有限公司, 江苏 南通 226001
    6. 扬子江药业集团南京海陵药业有限公司, 江苏 南京 210046
  • 收稿日期:2024-06-17 修回日期:2024-07-21 接受日期:2024-10-23 出版日期:2025-03-31 发布日期:2025-04-01
  • 通讯作者: 刘宏飞, 何海冰

Synthesis and in vitro/in vivo assessment of sustained-release oral oseltamivir phosphate suspension

Yuanrong Xin1, Yutian Dou1, Xiaolin Chen1, Yingshu Feng3, Xuesheng Liu1, Caleb Kesse Firempong1, Dan Yang6, Hongfei Liu1,2,*(), Haibing He4,5,*()   

  1. 1 College of Pharmacy, Jiangsu University, Zhenjiang 212013, Jiangsu, China
    2 Jiangsu Sunan Pharmaceutical Industrial Co., LTD., Zhenjiang 212400, Jiangsu, China
    3 Zhenjiang Key Laboratory of Functional Chemistry, Institute of Medicine & Chemical Engineering, Zhenjiang College, Zhenjiang 212028, Jiangsu, China
    4 Department of Pharmaceutics, Shen yang Pharmaceutical University, Shen yang 110016, Liaoning, China
    5 Jiangsu Haizhihong Biomedical Co., Ltd, Nantong 226001, Jiangsu, China
    6 Yangtze River Pharmaceutical Group Nanjing Hailing Pharmaceutical Company, Nanjing 210046, Jiangsu, China
  • Received:2024-06-17 Revised:2024-07-21 Accepted:2024-10-23 Online:2025-03-31 Published:2025-04-01
  • Contact: Hongfei Liu, Haibing He
  • Supported by:
    2023 Nantong Jianghai Talents Project, 2023 Nantong Social Livelihood Science and Technology Plan, 2021 Jurong Social Development Science&Technology Program (Grant No. ZA42109), 2022 New Drugs and Platform Enhancement Project of the Yangtze Delta Drug Advanced Research Institute, China Postdoctoral Science Foundation (Grant No. 2020M681532), and Jiangsu Planned Projects for Postdoctoral Research Funds (Grant No. 2020Z209). Natural Science Research Projects of Universities in Jiangsu Province (Grant No. 20KJD350001).

摘要:

磷酸奥司他韦(OP)是治疗流感最有效的药物之一, 面临着稳定性差、吞咽困难和苦味等挑战, 制约着儿童用药的依从性。因此, 本研究使用离子交换树脂作为载体来补救这种情况, 旨在开发一种新型的OP缓释混悬液。我们通过离子交换技术制备OP-药物树脂复合物(OP-DRC), 之后采用乳化蒸发法制备OP-包衣微囊(OP-CM)。利用单因素法结合正交试验设计确定OP缓释混悬剂的最佳配方, 研究缓释混悬液的体外/体内释放行为和药代动力学活性。SEM、XRD和ATR-FTIR结果表明, 药物-树脂复合物是通过离子键形成的。缓释混悬液的体外累积释放率分别为16% (1 h)、53% (6 h)和84% (24 h)。自制缓释混悬液与市售颗粒剂(t1/2 = 8.466 h; Tmax = 2 h; Cmax = 0.631 μg/mL)相比, t1/2 (21.518 h)增加, Tmax (6 h)延迟, Cmax (0.397 μg/mL)降低。AUC显示, 自制OP混悬剂的相对生物利用度为101%,高于市售OP颗粒剂。因此, 成功研制的口服磷酸奥司他韦缓释混悬液具有稳定、无味、易吞咽、灵活方便、缓释等特点, 可提高儿童的用药依从性。

关键词: 磷酸奥司他韦, 缓释, 离子交换树脂, 混悬液

Abstract:

Oseltamivir phosphate (OP), renowned as one of the most effective drugs for influenza treatment, encounters several challenges, including poor stability, difficulty in swallowing, and a bitter taste, thereby limiting its compliance, particularly among children. Consequently, this study aimed to devise a novel sustained-release suspension of OP employing an ion exchange resin as a carrier to address these challenges. The OP-drug resin complex (OP-DRC) was synthesized utilizing ion exchange technology, while OP-coated microcapsules (OP-CM) were fabricated via the emulsion-evaporation method. The optimization of the formulation process for the OP sustained-release suspension was achieved through a combination of single-factor experimentation and orthogonal experimental design. Furthermore, the drug release kinetics and pharmacokinetic properties of the sustained-release suspension were thoroughly evaluated both in vitro and in vivo. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR) analyses confirmed the formation of drug-resin complexes via ionic bonding. The in vitro cumulative release rates were found to be 16% (1 h), 53% (6 h), and 84% (24 h), respectively. Notably, the self-made sustained-release suspension exhibited an extended half-life (21.518 h), delayed time to peak concentration (Tmax) (6 h), and reduced maximum plasma concentration (Cmax) (0.397 μg/mL) in comparison to commercial granules (half-life = 8.466 h; Tmax = 2 h; Cmax = 0.631 μg/mL). Additionally, the area under the curve (AUC) indicated that the bioavailability of the self-made OP suspension surpassed that of the commercial OP granules by 101%. These findings underscored the successful development of an oral OP sustained-release suspension characterized by stability, tastelessness, ease of swallowing, convenient administration, and sustained-release properties, thereby potentially enhancing drug compliance among children.

Key words: Oseltamivir phosphate, Sustained-release, Ion exchange resin, Suspension

Supporting: