Dogs have been successfully used as therapy for people. They have super sensitive abilities to detect cancer in patients,detect seizures that are about to occur, they successfully assist patients with Post Traumatic Stress Disorders, They can be trained to assist with disabilities for the blind and handicapped, and many other medical problems. With these super sensitive abilities, I would support this type of use only. Any other type of testing should be banned.
Many people would volunteer to be used as test subjects for the advancement of medicine.
These are super sensitive, intelligent animals that can help us in other ways. We just need to focus on training more dogs for medical needs vs using them as test subjects.