COVID-19 Vaccine Development

The purpose of this website is to provide accurate and up-to-date information about research to develop vaccines to prevent COVID-19. The website focuses on Phase 3 studies. These studies are designed to determine if a vaccine is safe and helps prevent COVID-19. (Phase 1 and Phase 2 studies tend to be very small and are primarily used to justify moving to Phase 3. For more information about the differences between Phase 1, 2 and 3 studies, click here.)  We also include information from efforts to monitor vaccine safety AFTER the FDA has authorized a vaccine for emergency use in the United States (US).

Information You Can Find On This Site

  • Detailed information about the design of ongoing Phase 3 Studies that are evaluating vaccines to prevent COVID-19. 
  • Updates on the status of vaccine development before the vaccine has been authorized for emergency use in the US.
  • A summary of findings from each Phase 3 clinical trial used to support a request for an emergency use authorization (EUA) from the FDA. Currently, the following summaries are posted:
  • Safety monitoring updates AFTER a vaccine has been authorized for emergency use in the US.
  • Other information describing: Where in the World presents information about the status of vaccine approval and use around the globe; Operation Warp Speed, a US government initiative designed “to produce and deliver 300 million doses of safe and effective vaccines with the initial doses available by January 2021”; the role that the FDA has played in Operation Warp Speed; the Traditional Drug/Vaccine Development Process; and background information concerning the steps scientists and FDA officials took to ensure adherence to scientific standards throughout the vaccine development process.

PLEASE NOTE: We do not intend to endorse any COVID-19 vaccines or discourage their use. Our intention is simply to provide easy access to information that many people in the US might otherwise have a hard time finding. Nothing on this website should be interpreted as a medical recommendation.