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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 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 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

Nadir Ulu1, Daniël Henri Swart2,3, Zafer Sezer4,5

  • 1Gen İlaç ve Sağlık Ürünleri A.Ş., Ankara, Turkey.

Alzheimer's & dementia : the journal of the Alzheimer's Association
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概括
此摘要是机器生成的。

针对线粒体功能障碍的新型分子SUL-238在首次对人类进行的研究中证明了安全性和有利的药理动力学. 这种药物显示出治疗神经退行性疾病的潜力,如阿尔茨海默氏症和帕金森症.

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科学领域:

  • 神经科学和药理学 神经科学和药理学
  • 线粒体生物学 线粒体生物学
  • 药物开发 药物开发

背景情况:

  • 线粒体功能障碍与阿尔茨海默病 (AD) 和帕金森病 (PD) 的病原发生有关.
  • SUL-238是一种新的小分子,在临床前模型中增强了线粒体功能.
  • 在AD小鼠模型中,SUL-238已经显示出潜力,改善蛋白质表达,减少粉样蛋白质斑块和增强记忆力.

研究的目的:

  • 在健康成年人中评估单次口服剂量SUL-238的安全性,耐受性和药理动力学.
  • 为了评估SUL-238.8的脑脊液 (CSF) 透率.

主要方法:

  • 第1期,随机化,双盲,安慰剂控制,单次口服上升剂量 (SAD) 研究在健康志愿者中.
  • 剂量从50毫克到2000毫克在6个队伍.
  • 进行了药理动力学 (PK) 分析,包括食物效应和CSF-to-plasma度.

主要成果:

  • 在所有测试剂量 (50-2000毫克) 中,SUL-238是安全的,耐受性良好,没有剂量限制的不良反应.
  • 副作用的程度为轻度至中度,在SUL-238和安慰剂组之间可比.
  • 观察到有利的PK档案,具有高的CSF透率 (剂后2小时平均百分比为21.1%,剂后8小时平均百分比为74.2%).

结论:

  • 单次口服剂量SUL-238 (50-2000毫克) 是安全的,并且在健康的志愿者中耐受良好.
  • SUL-238表现出一个有利的药理动力学特征.
  • 该药物显著透到脑脊液中,支持其在神经学应用中的潜力.