Yes, Hayden was not just a Gilead consultant, he led a Remdesivir trial. I posted about this when CD12 failed -- couldn't understand why Hayden had been on the DSMB, a group (just 3 people, I think) that so clearly failed to indicate what the coming results would look like for CD12.
What was never public was how Hayden got on that board. It was hired by CYDY, so you'd think they would have known better.