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A Standardized Protocol for Mouse Longevity Studies in Preclinical Drug Development.

Alex Zhavoronkov1,2,3, Qian Wang4, Yujie Liu5

  • 1Insilico Medicine US Inc., Cambridge, MA 02138, USA.

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Preclinical drug development often overlooks mouse lifespan studies due to cost and standardization issues. This study introduces a scalable protocol for longevity assessments, crucial for identifying long-term drug effects and aging-related therapeutics.

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Area of Science:

  • Gerontology
  • Pharmacology
  • Toxicology

Background:

  • Aging is a significant factor in chronic disease, yet preclinical drug development rarely assesses drug impact on lifespan.
  • Current drug development lacks standardized mouse lifespan study protocols, hindering the evaluation of long-term therapeutic effects.
  • High costs, limited commercial incentives, and regulatory concerns impede the incorporation of longevity studies in drug discovery.

Purpose of the Study:

  • To present a comprehensive and scalable protocol for mouse longevity studies in early drug development.
  • To establish a standardized framework for integrating lifespan assessments into routine preclinical evaluations.
  • To facilitate the discovery of therapeutics that impact aging and chronic disease management.

Main Methods:

  • A basic longevity study design using approximately 250 genetically heterogeneous UM-HET3 mice per group (176 males, 72 females).
  • Survival curves as the primary endpoint for assessing longevity.
  • Proposes enhanced study design options contingent on available budget.

Main Results:

  • The proposed protocol offers a standardized foundation for longevity assessments in drug development.
  • The framework can uncover long-term risks or benefits missed by traditional toxicology studies.
  • Implementation supports the development of safer therapeutics and identifies potential geroprotectors.

Conclusions:

  • Standardized mouse longevity studies are essential for comprehensive preclinical drug evaluation.
  • This protocol provides a cost-effective and scalable approach to assess drug effects on lifespan.
  • Integrating longevity studies can advance the development of chronic disease treatments and anti-aging interventions.