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 434335 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 434,335
Africa [map] 15,409
Central America [map] 3,668
East Asia [map] 54,276
Japan 7,236 [studies]
Europe [map] 124,498
Middle East [map] 21,941
North America 175,954
Canada [map] 26,203 [studies]
Greenland 3 [studies]
Mexico 4,573 [studies]
United States [map] 157,995 [studies]
North Asia [map] 7,553
Pacifica [map] 10,020
South America [map] 13,240
South Asia [map] 7,637
Southeast Asia [map] 8,944

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.