We're building a better ClinicalTrials.gov. Check it out and tell us what you think!
ClinicalTrials.gov Menu
Open or close the search fields display
435780 Studies found for: the

A similar map is available for all studies in ClinicalTrials.gov

Click on the map below to show a more detailed map (when available) or search for studies (when map not available).

Map Legend
Region Name Number of Studies
World 435,780
Africa [map] 15,503
Central America [map] 3,697
East Asia [map] 54,821
Japan 7,238 [studies]
Europe [map] 125,105
Middle East [map] 22,359
North America 176,256
Canada [map] 26,332 [studies]
Greenland 3 [studies]
Mexico 4,596 [studies]
United States [map] 158,225 [studies]
North Asia [map] 7,574
Pacifica [map] 10,104
South America [map] 13,304
South Asia [map] 7,704
Southeast Asia [map] 8,948

Click on a [map] link to show a map of that region.

Click on a [studies] link to search within your current results for studies in that region. Use the back button to return to this list and try another region.

Studies with no locations are not included in the counts or on the map.

Studies with multiple locations are included in each region containing locations.