积极居住时间分布方法用于确定制药连续制造中关键材料属性的低风险设定点
Pasindu Herath Pathirannahalage1, Ayumu Nabetani1, Shota Kato1
1Department of Informatics, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, 606-8501, Japan.
International journal of pharmaceutics
|July 14, 2025
概括
主动居住时间分布 (P-RTD) 方法确保在连续制药制造过程中,关键材料属性保持在设计空间内. 这种新的方法在模拟中证明了在所有测试条件中有效.
科学领域:
- 制药制造业 制药制造业 制药制造业
- 化学工程是化学工程的重要组成部分.
- 过程控制 过程控制
背景情况:
- 制药行业越来越多地采用连续制造来提高生产率.
- 连续制造中的综合工艺对质量保证构成挑战.
- 在设计空间 (DS) 中保持关键材料属性 (CMA) 对于确保药物产品质量至关重要.
研究的目的:
- 引入和评估用于连续制药制造的新型控制方法.
- 在复杂的集成流程中,应对在DS中保持CMA的挑战.
- 确定CMA反控制的最佳设置点.
主要方法:
- 开发主动居住时间分布 (P-RTD) 方法.
- 使用居住时间分布 (RTD) 函数计算有效的CMA.
- 连续干颗粒线的控制模拟,将P-RTD与其他三种方法进行比较.
- 在不同的条件下进行的模拟,包括不同的CMA关系和过程滞后时间.
主要成果:
- 在所有模拟条件下,P-RTD方法成功地保持了设计空间内的CMA.
- 与其他三种方法的比较表明,P-RTD方法的性能优越.
- 通过各种过程复杂性和延迟时间,证实了P-RTD方法的稳定性.
结论:
- 在连续制药制造中,P-RTD方法是高效的质量保证策略.
- 基于RTD函数的预测控制提供了一种可靠的方式来确定CMA的设定点.
- 通过将CMA保持在设计空间内,P-RTD方法确保了一致的产品质量,在模拟中优于现有方法.
相关概念视频
Noncompartmental Analysis: Mean Residence Time
280
According to statistical moment theory, mean residence time (MRT) is an important measure in pharmacokinetics. MRT can be defined as the expected mean of a probability density function distribution. It provides valuable insights into drug disposition in the body.
After the administration of a drug through intravenous bolus injection, the drug molecules are distributed throughout the body and remain there for varying periods. The MRT represents the average time these drug molecules stay in the...
After the administration of a drug through intravenous bolus injection, the drug molecules are distributed throughout the body and remain there for varying periods. The MRT represents the average time these drug molecules stay in the...
280
Rational Dosage Regimen: Maintenance Dose and Loading Dose
4.4K
A rational dosage regimen considers a drug's pharmacokinetics, including its absorption, distribution, metabolism, and elimination from the body. By understanding these factors, the appropriate dosage can be determined, and the dosing schedule can be designed to achieve and maintain the desired therapeutic effect while minimizing adverse effects.
In most cases, drugs are administered repetitively or infused continuously to maintain a steady-state concentration in the body. At a steady...
In most cases, drugs are administered repetitively or infused continuously to maintain a steady-state concentration in the body. At a steady...
4.4K
Noncompartmental Analysis: Mean Transit, Absorption and Dissolution Time
164
When drugs are administered extravascularly, a comprehensive evaluation through noncompartmental analysis becomes imperative. This analytical approach considers various parameters that play a crucial role in understanding the pharmacokinetics of these drugs.
One of the key parameters is the mean transit time (MTT), which refers to the total duration required for drug molecules to transit through the body. MTT is determined by calculating the ratio of the area under the moment curve to the area...
One of the key parameters is the mean transit time (MTT), which refers to the total duration required for drug molecules to transit through the body. MTT is determined by calculating the ratio of the area under the moment curve to the area...
164
Noncompartmental Analysis: Miscellaneous Pharmacokinetic Parameters
198
The noncompartmental approach is a widely used method in pharmacokinetics to assess drugs' behaviors in the body. It considers several factors, including clearance, bioavailability, and total volume of distribution.
One key aspect of the noncompartmental approach is determining a drug's total clearance. This can be done by dividing the drug dose by the area under the concentration-time curve from zero to infinity. The area under the concentration-time curve represents the drug's...
One key aspect of the noncompartmental approach is determining a drug's total clearance. This can be done by dividing the drug dose by the area under the concentration-time curve from zero to infinity. The area under the concentration-time curve represents the drug's...
198
Model-Independent Approaches for Pharmacokinetic Data: Noncompartmental Analysis
128
Noncompartmental analyses offer an alternative method for describing drug pharmacokinetics without relying on a specific compartmental model. In this approach, the drug's pharmacokinetics are assumed to be linear, with the terminal phase log-linear. This assumption allows for simplified analysis and interpretation of the drug's behavior in the body.
One important characteristic of noncompartmental analyses is that drug exposure increases proportionally with increasing doses. This...
One important characteristic of noncompartmental analyses is that drug exposure increases proportionally with increasing doses. This...
128
Analysis of Population Pharmacokinetic Data
390
Analysis of population pharmacokinetic data involves studying the behavior of drugs within diverse populations to understand their pharmacokinetic parameters. Traditional pharmacokinetic methods typically involve collecting samples from a few individuals and estimating these parameters. While these methods are commonly used, they have limitations in capturing the variability in drug response among individuals or heterogeneous populations. Population pharmacokinetics is employed to address these...
390


