Itching for change: Embracing modern flea and tick product development.

Area of Science:

• Veterinary parasitology
• Toxicology
• Regulatory science

Background:

• Traditional ectoparasiticide development relies on animal testing for efficacy and toxicity evaluation.
• Animals are also used to breed and feed fleas and ticks for testing purposes.
• Current regulatory testing methods are decades-old and animal-intensive.

Purpose of the Study:

• To provide an overview of the current state-of-the-science of non-animal methods for flea and tick rearing.
• To review non-animal methods for regulatory-required efficacy testing of flea and tick control products.
• To identify challenges and recommend steps for replacing animals in product evaluation.

Main Methods:

• Literature review of existing non-animal methods for parasite rearing.
• Assessment of non-animal approaches for regulatory efficacy testing of ectoparasiticides.
• Analysis of challenges and opportunities for transitioning to non-animal methods.

Main Results:

• Non-animal methods for regulatory testing and flea/tick rearing already exist.
• Further development could soon make additional non-animal methods available.
• Several challenges remain in fully replacing animals for product evaluation.

Conclusions:

• Non-animal methods offer a viable alternative to traditional animal testing for ectoparasiticide development.
• Continued research and development are crucial for overcoming remaining challenges.
• Implementing non-animal methods will reduce animal use in flea and tick control product evaluation.