There are a lot of things that could be tweaked, but at a gross level it’s pretty consistent. In fact the recent, seemingly politicized, accelerated approval of aducanumab certainty caused a lot of turmoil and appears to have been a mistake.

When I was gestating my mother’s colleagues apparently couldn’t understand why she wouldn’t take the miracle drug thalidomide (much less even aspirin). Lucky for me! In general I think the medical side of FDA works reasonably well.

Human experimentation is limited and carefully managed for very good reasons. Killing people to extend other people's lives is not a good tradeoff.