>Less than two years from lab to clinic is highly unusual.
I assume like most other COVID vaccines/treatments, the timeline is shrunk by going straight to more expensive phases of the trial instead of having preliminary ones of escalating cost and confidence. Or at least prepping for them.
For instance, all the vaccines started setting up commercial production around the same time they started trials, because it's not worth the months delay of setting up a production line to determine if it worked first.
I assume like most other COVID vaccines/treatments, the timeline is shrunk by going straight to more expensive phases of the trial instead of having preliminary ones of escalating cost and confidence. Or at least prepping for them.
For instance, all the vaccines started setting up commercial production around the same time they started trials, because it's not worth the months delay of setting up a production line to determine if it worked first.