In anti-aging news, we may soon have immortal mice.
I am reminded of http://www.smbc-comics.com/comic/2013-02-08
We do cure a lot of diseases in mice and rats, don't we? All part of the process of working towards human testing. Which brings things back onto topic... how do you feel about allowing people to volunteer to use drugs not cleared by the FDA (or your foreign analog) if they are terminally ill? That was done for AIDS meds to great positive effect.
This is something I actually have some experience with, so there's a chance I might come across as knowing what I'm talking about, at least up to a point.
Here's the dilemma. You have a possible treatment. However, this is what we do usually, reasons to follow:
Typically, you split the groups into control and treatment arms. If the treatment arm is doing appreciably better, we'll even stop the study early and put everyone on it. However, there's people from the control arm who otherwise would have lived/had better outcomes (depending on the treatment) if they'd all been on it from the beginning.
But the only way we could have known that was by seeing that difference in outcome in the first place. Also, the reason we do things this way is because sometimes, the treatment kills/injures more people than than the control group.
Unfortunately, quite often there's no other way to do this. In a way, it's kind of a game of chance though we can at least tilt the odds to some degree sometimes.
Now about AIDS, are you thinking of The Dallas Buyers Club?
First the story had a character (McCounaughey), whose best friend (Leto) didn't exist in real life, nor did his doctor (Garner) but whose real-life family who did weren't mentioned. Also, when the FDA did the unglamorous testing of whatever drug or compound was purported to have been the subject of them film over a large population study, it turned out to be no better than the control. McCounaughey's real-life counterpart might have owned a cowboy hat at some point, though.
(At this point, I remind our audience to check anything I say at all times and anyone who says anything generally. I did look this up but I do get things wrong sometimes.)
The other problems that can crop up with trying a Hail Mary pass on the terminally ill can include: making it worse for them, you can make things very much worse sometimes and also, sometimes these things end up being used in lieu of better and more valid options with people who have non-terminal illnesses. These things can bleed into other groups.
It's not an easy situation at the best of times. You really do have to play it on a case by case basis and you don't always get it right. No easy answers, I'm afraid.