Barriers to the Uptake of Human-based Test Methods, and How to Overcome Them

Area of Science:

• Pharmacology
• Toxicology
• Regulatory Science

Background:

• Growing concerns exist regarding the reliability of animal testing for drug safety and efficacy.
• Development of innovative human-based methods (in vivo, in silico, in vitro) is increasing.

Purpose of the Study:

• To identify barriers hindering the regulatory adoption of human-based methods for drug safety and efficacy assessment.
• To suggest pathways forward for overcoming these impediments.

Main Methods:

• Review and analysis of existing challenges in drug safety and efficacy evaluation.
• Identification of specific hurdles related to human-based methodologies.

Main Results:

• Key barriers include lack of confidence in the predictive capability of human-based methods for clinical outcomes.
• Formal validation of existing animal-based methods is lacking.
• Regulatory guidelines lack explicit acceptance of non-animal approaches.

Conclusions:

• Significant hurdles impede the transition to more predictive, human-based drug safety and efficacy assessment.
• Addressing validation and regulatory clarity is crucial for advancing drug development.