Are there any animals that are endangered due to animal testing?

Animal experimentation, while an emotive subject and considered by many to be abhorrent, particularly when conducted unnecessarily, is highly unlikely to lead to the extinction of any species, since laboratory animals usually need to be specially bred for this work and bear little relationship to that type of animal in the wild or in a domestic situation. Traditional purpose-bred lab animals such as white or hairless mice, for example, couldn't live in the wild, and don't do well as pets.

Experiments conducted on wild or domestic animals are more likely to be of a non-invasive nature, also unlikely to result in extinction.

Extinction of some species has been, and remains, a result of human intervention in a species' environment, for farming, housing, and so on, or of hunting, neither of which are conducted as legitimate experiments.

The closest example of animal experimentation leading to extinction would be scientific gathering of animals on the verge of extinction by being killed to provide examples of rare species for museums and scientific study. Thankfully this hasn't happened for a century or more, but in its day it was considered scientifically valid.