The 14 Most Horrific Science Experiments Ever Performed On People

The THN1412 Experiment

In 2007, doctors decided to test out a new leukemia treatment known as THN1412 on human patients. The drug passed animal experimentation well. What made this experiment horrific is that it killed every single patient who took it. 

In animals, THN1412 was safe. In humans, it causes catastrophic organ failure. Doctors had no way of knowing this would happen.