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Preclinical Development: Overview01:28

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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 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 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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Drugs, the chemical agents used in diagnosing, treating, or preventing diseases, undergo a four-phase process of development: pharmaceutic, pharmacokinetics, pharmacodynamics, and therapeutic.
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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

YoungSoo Kim1,2, Seung Hoon Han1, Hyemi Lee1

  • 1Amyloid Solution Inc., Seongnam, Gyeonggi-do, Korea, Republic of (South).

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概括
此摘要是机器生成的。

一种新的口服药物AS-S603,通过清除粉样蛋白-β (Aβ) 和聚合物,在阿尔茨海默病 (AD) 中表现有前途. 这种一流的治疗方法在临床前研究中显示出显著的认知益处.

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科学领域:

  • 神经科学是一个神经科学.
  • 药理学 药理学是指药理学的学科.
  • 生物化学 生化学

背景情况:

  • 阿尔茨海默病 (AD) 在病理上是由粉样β (Aβ) 斑块和陶团组成的.
  • 目前的免疫疗法单独针对Aβ或tau,因此需要双重向策略.
  • AS-S603是一种新型小分子,旨在同时化学清除Aβ和tau聚合物的聚合物.

研究的目的:

  • 发现和描述AS-S603,一种针对阿尔茨海默病 (AD) 的粉样β (Aβ) 和聚合物的新型小分子.
  • 评估AS-S603在临床前模型中的疗效,作用机制和安全性.
  • 评估AS-S603作为AD第一类口服治疗的潜力.

主要方法:

  • 通过高通量查确定了AS-S603,并针对Aβ和tau的有效性进行了优化.
  • 在5xFAD和PS19小鼠模型的临床前研究中,AS-S603与现有的AD疗法进行了比较,包括认知测试和粉样蛋白-PET成像.
  • 使用生物物理,生物化学和分子对接模拟来研究作用模式.

主要成果:

  • AS-S603有效地将细胞外和细胞内Aβ和tau聚合物分离成单体.
  • 临床前研究表明,与Lecanemab相比,它有更好的认知效益和更低的粉样蛋白负担.
  • AS-S603具有高血脑屏障透率 (>200%) 和良好的安全性,目前正在进行1期临床试验.

结论:

  • AS-S603代表了阿尔茨海默病的第一类口服治疗候选药物,独特地针对Aβ和tau病理.
  • 它分离有毒蛋白质聚合物的能力表明它具有潜在的疾病修饰能力.
  • 预计AS-S603安全性和疗效的临床验证将将其定位为一种变革性的AD治疗方法.