View Moderna Covid Vaccine Trial Protocol PNG. In moderna's trial, 15,000 study participants were given a placebo, which is a shot of saline that has no effect. Moderna's potential coronavirus vaccine generated a promising immune response in elderly patients in an early stage clinical trial, the biotech firm announced wednesday.

Moderna’s coronavirus vaccine shows signs of success in ... from i1.wp.com

As they race to test an experimental coronavirus vaccine, researchers aren't waiting to see how well it prevents infection in animals before trying it in people, breaking from the usual protocol. A scientist works in the lab at moderna in cambridge, mass., on feb. In moderna's trial, 15,000 study participants were given a placebo, which is a shot of saline that has no effect.

The coronavirus vaccine candidate developed by moderna has entered its next phase of human trials.

The company hopes to have results by thanksgiving. Cnbc's meg tirrell reports on changes to moderna's testing strategy as it continues its phase three trial. The moderna trial involved more than 30,000 participants in the us split into two groups, with one group given two doses of the vaccine and the other group given a placebo. This unusually transparent action during a major drug trial deserves praise.