Number of registered COVID-19 studies worldwide Apr 2020 - Dec 2022, by region
According to ClinicalTrials.gov, as of December 19, 2022, there were more than 8.5 thousand studies registered worldwide which are investigating the coronavirus disease (COVID-19). This statistic shows the total number of results from a search of "covid-19" on ClinicalTrials.gov database, from April 2020 to December 2022, by world region.