Drug companies are saturating the test markets with potential treatments for the novel coronavirus.
A top US regulator has cautioned that conducting so many studies could be a challenge.
Dr. Janet Woodcock, of the FDA, said the agency has received over 950 proposals for coronavirus treatments.
"Although we may not run out of patients, unfortunately, we may run out of research personnel"
Dr. Janet Woodcock
Woodcock said the current medication trial system has to change to meet the demand.
It's a position she has long advocated for, previously calling the US clinical trial system "broken."
Woodcock said; "This crisis underlies and points out the need to have a better clinical trial infrastructure in place".