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58023 Studies found for: Placebo
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Map Legend
Source:https://ClinicalTrials.gov
Region Name Number of Studies
World 58,023  
Africa   [map]   2,183  
Central America   [map]   1,035  
East Asia   [map]   6,685  
Japan 1,742   [studies]
Europe   [map]   17,244  
Middle East   [map]   2,962  
North America 28,318  
Canada   [map]   5,603   [studies]
Mexico 1,507   [studies]
United States   [map]   25,662   [studies]
North Asia   [map]   2,406  
Pacifica   [map]   2,634  
South America   [map]   3,016  
South Asia   [map]   1,315  
Southeast Asia   [map]   1,641  
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.