Reminds me of the TGN1412 drug trial where patients had severe immune reaction and almost died. Sad that the story suggests they ignored all the signs that would suggest humans would have a bad immune reaction to it and proceeded anyway.

https://www.reddit.com/r/Documentaries/comments/jrraz7/when_...

With TGN1412, it wasn't that the right work wasn't done, or that results ignored, but rather that the regulations in place at the time weren't right to deal with that sort of drug. Following what happened, the regulations were changed around the world to be more cautious and suitable.