FDA Commissioner Dr. Stephen Hahn Sarah Silbiger/Getty Images/FILE

The United States has been looking beyond its borders to work with European medical agencies and other agencies to expedite clinical trials on potential coronavirus vaccines and treatments, FDA Commissioner Dr. Stephen Hahn said during a live video interview with The Washington Post today.

"We have relationships with our brother and sister regulatory agencies around the world, and we absolutely are participating in that," Hahn told The Washington Post's Robert Costa.

He continued: "Let me describe one effort with respect to vaccine development. We want to develop what's called a master protocol, which is where multiple different vaccines –– and this can be done for therapeutics and has been done for therapeutics –– can be entered into this protocol using a very similar clinical trials approach and statistical approach. It's a very efficient way of looking at multiple therapeutics, vaccines.”