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相关概念视频

Preclinical Development: Overview01:28

Preclinical Development: Overview

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Preclinical development consists of a series of tests that ensure the safety and efficacy of a new therapeutic compound before it is tested in humans. There are four main phases to this process. First, safety pharmacology tests are conducted to ensure the drug does not produce any acutely harmful effects. These tests examine parameters such as bronchoconstriction, cardiac dysrhythmias, blood pressure changes, and ataxia. Next, preliminary toxicological testing is performed to determine the...
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Clinical Trials: Overview01:11

Clinical Trials: Overview

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Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
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Drug Discovery: Overview01:26

Drug Discovery: Overview

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Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
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Drug Administration and Therapy Phases: Overview01:26

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Drugs, the chemical agents used in diagnosing, treating, or preventing diseases, undergo a four-phase process of development: pharmaceutic, pharmacokinetics, pharmacodynamics, and therapeutic.
The pharmaceutical phase focuses on leveraging the physicochemical properties of the drug to design and manufacture an effective product. Variants include orally administered tablets or capsules, topical creams or ointments, and parenteral-delivery solutions or emulsions.
The pharmacokinetic phase...
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In Vitro Drug Release Testing: Overview, Development and Validation01:10

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In vitro dissolution and drug release tests assess how quickly and how much of a drug is released from its dosage form into an aqueous medium under standardized laboratory conditions. These tests are essential tools in pharmaceutical development and quality assurance, offering insight into the drug's performance before clinical use.During formulation development, dissolution testing identifies incomplete or inconsistent drug release issues. It also supports decisions on selecting the optimal...
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Drug Regulation01:25

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Drug regulation encompasses the management of drug usage by evaluating its safety and efficacy through assessments conducted by regulatory authorities. Regrettably, the history of drug regulation is marred by several catastrophic events. One such incident is the Elixir Sulfanilamide tragedy, in which the toxic compound diethyl glycol was included in a sweet-tasting medication, leading to numerous fatalities. This event prompted the enactment of the Food, Drug, and Cosmetic Act in 1938. Under...
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药物开发 药物开发

David S Miller1, Xingmei Wang1, Alan Kott2

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此摘要是机器生成的。

确认性认知测试有助于早期的阿尔茨海默氏症.

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科学领域:

  • 神经科学是一个神经科学.
  • 临床试验 临床试验
  • 认知评估 认知评估

背景情况:

  • 确认性认知测试如FCSRT,RBANS和韦克斯勒记忆量表 (WMS) -逻辑记忆II对于早期阿尔茨海默病 (AD) 临床试验的查至关重要.
  • 这些工具确保参与者具有可客观化的认知衰退,但对参与者和评估者来说可能是漫长而繁的.
  • 本分析评估了它们在早期AD查中超越迷你精神状态检查 (MMSE) 的实用性和附加值.

研究的目的:

  • 评估FCSRT,RBANS和WMS-LMII在早期阿尔茨海默病临床试验中查参与者的有效性.
  • 为了确定这些工具的附加值,在MMSE (迷你精神状态考试) 纳入标准之上.
  • 为了比较不同认知测试的表现,识别不合格的受试者.

主要方法:

  • 对早期阿尔茨海默病5项大型临床试验数据的分析.
  • 利用描述性统计和物流回归模型.
  • 测试了FCSRT,RBANS和WMS-LMII的性能与MMSE分数对比,以排除不合适的受试者.

主要成果:

  • 在RBANS,FCSRT和WMS-LMII中,符合MMSE标准的受试者中,有23-37%被确定为不符合条件的受试者.
  • 所有仪器选了超过50%的MMSE得分为30的受试者.
  • 性能因MMSE得分而异,FCSRT和WMS-LMII显示线性性能,而RBANS显示曲线性性能,特别是在MMSE得分低于25的情况下.

结论:

  • 在早期AD试验中,确认性认知测试有效地选出缺乏可客观化的认知衰退的受试者.
  • 在FCSRT,RBANS和WMS-LMII之间存在显著的绩效差异,特别是对于MMSE得分较低的参与者.
  • 临床试验设计人员在选择查仪器时应考虑这些性能差异,受试者/评审者负担和试验目标.