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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

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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

Larisa Reyderman1, Natasha Penner1, Pratik Bhagunde1

  • 1Eisai Inc., Nutley, NJ, USA.

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概括
此摘要是机器生成的。

皮下lecanemab (抗体的完整名称) 维持疗法在阿尔茨海默病的治疗中具有与静脉注射剂量相似的疗效,改善了患者的便利性和潜在的安全性.

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科学领域:

  • 神经科学是一个神经科学.
  • 免疫学 免疫学 免疫学
  • 药理学 药理学是指药理学的学科.

背景情况:

  • 莱卡尼马布是一种单克隆抗体,向粉样β原纤维素.
  • 临床研究表明,lecanemab可降低粉样蛋白PET,并减缓早期阿尔茨海默病 (AD) 的认知衰退.

研究的目的:

  • 评估持续使用lecanemab剂量的理由,使用超过18个月的每周360毫克皮下配方.
  • 模拟lecanemab暴露与粉样PET,血生物标志物和临床结果的相关性.

主要方法:

  • 利用了2期和Clarity AD 3期研究中的半机械模型和模拟.
  • 在4年内模拟的粉样蛋白PET,CDR-SB和生物标志物变化 (Aβ42/40,ptau181,GFAP).
  • 对比连续两周一次的IV lecanemab与18个月后过渡到每周360毫克皮下剂量.

主要成果:

  • 与静脉注射治疗相比,持续的皮下lecanemab剂量显示出与静脉注射治疗相比,类似的粉样蛋白PET减少.
  • 在皮下和静脉内维护方案之间没有观察到临床结果 (CDR-SB) 的显著差异.
  • 每周皮下剂量维持了与抑制的AD病理和神经炎症一致的血生物标志物.

结论:

  • 维持皮下莱卡尼马布剂量维持疗效,同时降低患者和护理人员的负担.
  • 皮下lecanemab可以防止生物标志物重新积累,而不会对粉样蛋白水平或疾病进展产生负面影响.
  • 皮下注射配方提供了更为患者友好的注射途径,可能改善安全性.