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Related Concept Videos

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

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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 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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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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Structure-Activity Relationships and Drug Design01:28

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Drug design is a dynamic field that involves discovering and developing new medications based on specific biological targets. This process heavily relies on structure-activity relationships (SAR) and quantitative structure-activity relationships (QSAR) to guide the design and optimization of efficient drugs.
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Prodrugs are a class of pharmaceutical compounds that undergo a biotransformation process within the body to be converted into a pharmacologically active drug. Prodrugs are designed to improve the therapeutic properties of the parent drug, such as enhancing bioavailability, increasing stability, or reducing toxicity. The concept of prodrugs revolves around modifying the chemical structure of the original drug to make it more effective or convenient for administration.
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Drug Repurposing Hypothesis Generation Using the "RE:fine Drugs" System
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Drug repurposing: Clinical practices and regulatory pathways.

K Saranraj1, P Usha Kiran1

  • 1Department of Pharmacology, Rangaraya Medical College, Kakinada, Andhra Pradesh, India.

Perspectives in Clinical Research
|May 5, 2025
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Summary

Drug repurposing finds new uses for existing medications, speeding up development and lowering costs. However, careful ethical and safety considerations are crucial for successful therapeutic innovation.

Keywords:
Artificial intelligencerepositioningrepurposing

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Area of Science:

  • Pharmacology
  • Drug Discovery
  • Medical Ethics

Background:

  • Drug repurposing identifies novel therapeutic applications for established medications.
  • Historical successes include sildenafil and thalidomide, demonstrating significant therapeutic shifts.
  • This approach offers potential for expedited development and reduced costs using drugs with known safety profiles.

Purpose of the Study:

  • To explore the multifaceted landscape of drug repurposing, encompassing its benefits, challenges, and ethical dimensions.
  • To highlight recent technological advancements driving innovation in drug repositioning.
  • To examine the regulatory and clinical trial pathways for repurposed drugs.

Main Methods:

  • Review of historical examples and current advancements in drug repurposing.
  • Analysis of benefits, including cost reduction and expedited development.
  • Examination of challenges such as target specificity, intellectual property, and funding.
  • Discussion of ethical considerations including access, consent, and transparency.
  • Integration of emerging technologies like artificial intelligence (AI), network pharmacology, and omics.

Main Results:

  • Drug repurposing accelerates therapeutic innovation by leveraging existing drug safety profiles.
  • AI, network pharmacology, and omics technologies are key drivers of recent advancements.
  • Clinical trials and regulatory pathways are adapting to facilitate the approval of repurposed drugs.
  • Significant challenges remain, including intellectual property, target specificity, and funding limitations.

Conclusions:

  • Drug repurposing presents a valuable strategy for addressing unmet medical needs and fostering therapeutic innovation.
  • Careful navigation of scientific, regulatory, and ethical complexities is essential for maximizing benefits.
  • Future directions emphasize precision medicine, AI integration, and global collaborative efforts.