开发一种生物相关溶解试验,使用二碳酸缓冲和顶峰容器来预测临床生物等价性
Masahiro Fushimi1,2, Katsuki Nakamichi1, Masatoshi Nakatani1
1Sawai Pharmaceutical Co., Ltd., 5-2-30 Miyahara, Yodogawa-ku, Osaka 532-0003, Japan.
Chemical & pharmaceutical bulletin
|February 1, 2026
概括
使用二碳酸盐缓冲器和顶部容器的新生物相关溶解试验准确地预测了肠膜涂层埃索梅普拉颗粒的临床生物等价性 (BE). 这种方法克服了综合测试的局限性,改善了配方开发.
科学领域:
- 制药科学 制药科学
- 药物运输 药物运输 药物运输
- 分析化学 分析化学
背景情况:
- 目前的溶解测试往往无法预测临床生物等价性 (BE).
- 肠膜涂层药物配方需要专门的溶解测试.
- 治疗等效的可靠预测对于药物开发至关重要.
研究的目的:
- 开发一种生物相关的溶解试验,能够预测临床生物等价性 (BE).
- 为了评估ES和非BE (NBE) 状态的ESomeprazole三水合物 (ECP-ESO) 的肠涂层颗粒.
- 将生物相关条件与综合溶解方法进行比较.
主要方法:
- 在各种条件下使用式方法对ECP-ESO进行溶解测试.
- 使用具有生物相关性的二碳酸盐缓冲器 (BCB) 与浮动盖来模拟肠液.
- 使用顶部容器 (Apex-V) 来抑制工件形 (形).
- 将BCB/Apex-V与综合酸盐缓冲器 (PPB) 和圆底容器 (RB-V) 进行比较.
主要成果:
- 补充条件 (PPB/RB-V) 没有区分BE和NBE配方.
- 阿佩克斯-V 消除了共,但仅用PPB或BCB缺乏歧视力.
- 生物相关的BCB和Apex-V的组合成功地将BE与NBE ECP-ESO区分开来.
- 结果与临床生物等价性数据相关.
结论:
- 使用BCB和Apex-V的生物相关溶解测试可以准确预测临床BE/NBE.
- 这种简单,生物相关的方法提高了配方开发中的预测能力.
- 开发的测试提供了评估治疗等效性的实用方法.
更多相关视频
08:29Ex Vivo Treatment Response of Primary Tumors and/or Associated Metastases for Preclinical and Clinical Development of Therapeutics
Published on: October 2, 2014
15.2K
10:54Dissolution Dynamic Nuclear Polarization Instrumentation for Real-time Enzymatic Reaction Rate Measurements by NMR
Published on: February 23, 2016
11.2K
相关概念视频
Bicarbonate-Carbonic Acid Buffer
5.8K
The carbonic acid-bicarbonate buffer system is critical for maintaining the body's pH balance. It operates on the equilibrium:
5.8K
Buffers
172.8K
A solution containing appreciable amounts of a weak conjugate acid-base pair is called a buffer solution, or a buffer. Buffer solutions resist a change in pH when small amounts of a strong acid or a strong base are added. A solution of acetic acid and sodium acetate is an example of a buffer that consists of a weak acid and its salt: CH3COOH (aq) + CH3COONa (aq). An example of a buffer that consists of a weak base and its salt is a solution of ammonia and ammonium chloride: NH3 (aq) + NH4Cl...
172.8K
Development of Blood Vessels
1.5K
The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
1.5K
Buffers: Buffer Capacity
2.4K
Buffer capacity is the quantitative measure of a buffer to resist the change in pH. As shown in the following equation, the buffer capacity, denoted by 'beta', is expressed as the number of moles of acid or base needed to change the pH of a one-liter buffer solution by 1 unit. Here, Ca and Cb indicate the number of moles of acid and base, respectively. Note that dpH represents the change in pH.
In the graph, pH is plotted as a function of the number of moles of base (Cb) added to a weak...
In the graph, pH is plotted as a function of the number of moles of base (Cb) added to a weak...
2.4K
Buffer Effectiveness
55.2K
Buffer solutions do not have an unlimited capacity to keep the pH relatively constant . Instead, the ability of a buffer solution to resist changes in pH relies on the presence of appreciable amounts of its conjugate weak acid-base pair. When enough strong acid or base is added to substantially lower the concentration of either member of the buffer pair, the buffering action within the solution is compromised.
The buffer capacity is the amount of acid or base that can be added to a given volume...
The buffer capacity is the amount of acid or base that can be added to a given volume...
55.2K
Bioequivalence: Overview
1.9K
Pharmaceutical equivalents, by definition, are drug products with the same active ingredient in the same quantities, encapsulated in identical dosage forms, and intended for the same administration routes. These pharmaceutical equivalents are deemed bioequivalent if the bioavailability of the active entity in the drug preparations is similar. Moreover, pharmaceutical equivalents demonstrating bioequivalence are also regarded as therapeutically equivalent. This means that when used as directed,...
1.9K
