It is for the people enrolled in an actual clinical trial.
It's not for people outside of the clinical trial using it under either the EUA or the subsequent full authorization.
> How many people who were given the vaccine were told that it is part of an ongoing clinical trial,
100% of those for whom that was true. Which is a very small percentage of the population who has received it.
> authorized for emergency use
100% of those for whom that was true, who aren't the same people.