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
All 441065 Studies found for: ALL

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 441,065
Africa [map] 15,841
Central America [map] 3,715
East Asia [map] 55,441
Japan 7,327 [studies]
Europe [map] 126,437
Middle East [map] 22,603
North America 177,792
Canada [map] 26,477 [studies]
Greenland 3 [studies]
Mexico 4,627 [studies]
United States [map] 159,634 [studies]
North Asia [map] 7,618
Pacifica [map] 10,148
South America [map] 13,401
South Asia [map] 7,822
Southeast Asia [map] 9,084

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.