The problem is the FDA won’t let you in practice test in humans until you have shown effectiveness in animal models. Of course if the animal model is not simil

The problem is the FDA won’t let you in practice test in humans until you have shown effectiveness in animal models. Of course if the animal model is not similar to the human form then what you end up doing is testing a drug that worked for one disease on a totally different one. In someways it is like using a drug that treats high blood pressure and then testing to see if cures bladder cancer. You might get lucky, but it is a pretty longshot.