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相关概念视频

Bioequivalence: Overview01:16

Bioequivalence: Overview

1.8K
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,...
1.8K
Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs01:20

Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs

228
Body:Bioequivalence experimental study designs are crucial methodologies used in evaluating and comparing the bioavailability of different drug products. These designs are categorized into various types: completely randomized, randomized block, repeated measures, cross and carry-over, and Latin square designs.Completely randomized designs involve randomly allocating treatments to all subjects participating in the experiment. This allocation is achieved by assigning unique random numbers to...
228
Equivalence: In Vitro and In Vivo Bioequivalence01:17

Equivalence: In Vitro and In Vivo Bioequivalence

212
Body:Bioequivalence studies are crucial in evaluating whether new drugs can match an approved one regarding pharmacological effects and clinical performance. These studies test if drugs, despite different dosage forms, share identical plasma concentration-time profiles. Three types of equivalence are central to these studies: chemical, pharmaceutical, and therapeutic. Chemical equivalence indicates that two or more drug products contain identical active ingredients in equal amounts.
212
Bioequivalence studies: Biowaivers01:13

Bioequivalence studies: Biowaivers

227
Body:In certain scenarios, in vitro dissolution tests can replace in vivo bioequivalence studies. This is particularly true when a drug product, though available in varying strengths, maintains proportional similarity in its active and inactive ingredients. In such cases, the need for in vivo bioequivalence studies for lower strength variants may be waived, provided dissolution tests and in vivo studies on the highest strength yield satisfactory results.Bioequivalence can be indicated through...
227
Statistical Software for Data Analysis and Clinical Trials01:12

Statistical Software for Data Analysis and Clinical Trials

1.4K
Statistical software is pivotal in data analysis and clinical trials by providing tools to analyze data, draw conclusions, and make predictions. These software packages range from simple data management applications to complex analytical platforms, supporting various statistical tests, models, and simulation techniques. Their significance lies in their ability to handle vast amounts of data with precision and efficiency, enabling researchers to validate hypotheses, identify trends, and make...
1.4K
Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs01:15

Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs

182
Body:Bioequivalence experimental study designs play a pivotal role in testing the effectiveness of various treatments. Key among these are the repeated measures, cross-over, carry-over, and Latin square designs. In the repeated measures design, each subject receives all treatments, allowing for temporal comparisons. This type of design is useful in reducing variability but requires careful planning to avoid bias.The cross-over design, an economical method, involves sequential administration of...
182

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相关实验视频

Updated: Jan 17, 2026

Author Spotlight: Advancing Biotherapeutic Mass Calculation by Introducing mAbScale, a Python-Based Desktop Application
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一个开源框架用于虚拟生物等价模型和临床试验设计.

Abdullah Hamadeh1, Moriah Pellowe1,2, Pierre Chelle1

  • 1School of Pharmacy, University of Waterloo, Waterloo, Ontario, Canada.

CPT: pharmacometrics & systems pharmacology
|September 24, 2025
PubMed
概括

本研究介绍了VBEToolbox,这是一个用于虚拟生物等价性 (VBE) 评估的R包. 它简化了使用体外和体内数据的in silico建模,以减少药物开发的人体测试.

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科学领域:

  • 药理动力学和药理动力学
  • 计算生物学和生物信息学
  • 药物开发和监管科学 药物开发和监管科学

背景情况:

  • 生物等价性 (BE) 评估传统上需要广泛的人体测试.
  • 在形实验中,虚拟生物等效 (VBE) 提供了一个有希望的替代方案来减少对人类的试验.
  • 为了可靠的VBE评估,需要标准化的计算工作流.

研究的目的:

  • 介绍VBEToolbox R包用于标准化计算VBE工作流程.
  • 整合体外和体内数据用于药理动力学模型培训和VBE.
  • 展示VBE的应用,以确定必要的研究规模和统计能力.

主要方法:

  • 在开放系统药理学框架内开发了VBEToolbox R包.
  • 采用非参数方法来处理参数不可识别性和不确定性.
  • 将体外数据 (皮肤透,溶解) 和体内数据 (吸收) 整合到机理学和生理学基础的药物动力学模型中.
  • 利用临床数据推断个体间的变异性,并建立体外到体内外抽取.

主要成果:

  • 通过使用体外/体内皮肤吸收模型,成功证明了丸激素皮肤配方的VBE.
  • 通过将体外溶解数据整合到基于生理学的药理动力学模型,对口服布洛配方进行评估VBE.
  • 展示了VBEToolbox在简化VBE工作流程和确定虚拟学习设计方面的实用性.

结论:

  • VBEToolbox为计算VBE评估提供了一个标准化的框架.
  • 像VBEToolbox所支持的in silico方法,可以显著减少对人类生物等价性研究的需求.
  • 提出的案例研究突出了开发和应用VBE模型在药物开发中的关键考虑因素.