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60319 Studies found for: Placebo

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
Source:https://ClinicalTrials.gov
Region Name Number of Studies
World 60,319
Africa [map] 2,296
Central America [map] 1,066
East Asia [map] 7,075
Japan 1,825 [studies]
Europe [map] 17,967
Middle East [map] 3,083
North America 29,292
Canada [map] 5,787 [studies]
Mexico 1,560 [studies]
United States [map] 26,546 [studies]
North Asia [map] 2,500
Pacifica [map] 2,751
South America [map] 3,132
South Asia [map] 1,358
Southeast Asia [map] 1,722
Hints:

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.