[New trends on alternative to animal testings in Japan]

Area of Science:

• Toxicology
• Regulatory Science
• In Vitro Testing

Background:

• Non-animal alternative test methods have advanced significantly for specific toxicological endpoints.
• These methods are crucial for the safety evaluation of chemicals, pesticides, pharmaceuticals, and cosmetics for regulatory compliance.
• Current limitations exist for systemic toxicological endpoints, necessitating further development.

Purpose of the Study:

• To highlight the progress in non-animal alternative test methods for genotoxicity, endocrine disruption, irritation, and skin sensitization.
• To identify the need for new test methods for systemic toxicological endpoints such as repeated dose toxicity, carcinogenicity, immunotoxicity, and reproductive toxicity.
• To emphasize the anticipated global development of novel toxicological testing strategies.

Main Methods:

• Review of current non-animal alternative test methods in toxicology.
• Identification of key systemic toxicological endpoints requiring new testing strategies.
• Analysis of the global landscape for toxicological research and development.

Main Results:

• Established non-animal methods are successfully used for safety evaluations in various industries.
• Significant gaps remain in non-animal testing for systemic toxicity endpoints.
• Global research efforts are focused on developing novel methodologies for comprehensive toxicological assessments.

Conclusions:

• Non-animal alternative methods are increasingly integrated into regulatory safety evaluations.
• Continued innovation is essential to address the remaining gaps in systemic toxicity testing.
• International collaboration and focused research, particularly from Japan, are expected to drive future advancements in toxicological testing.