Also: There are currently nine clinical sites participating in the Study with an additional six more clinical sites joining the Study in January to satisfy the overall enrollment goal of up to 1,000 patients.
"to satisfy the overall goal of up to 1000 patients"
the way I read this sounds like they have more than enough patients enrolled hence the addition of so many more clinical sites and the 23mil needed quickly to get all up and running. IMO FDA needs results ASAP so they can approve for EUA.