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143901 Studies found for: efficacy

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Map Legend
Source:https://ClinicalTrials.gov
Region Name Number of Studies
World 143,901
Africa [map] 5,388
Central America [map] 2,062
East Asia [map] 23,361
Japan 4,103 [studies]
Europe [map] 39,223
Middle East [map] 7,535
North America 62,967
Canada [map] 11,829 [studies]
Mexico 2,544 [studies]
United States [map] 56,577 [studies]
North Asia [map] 4,735
Pacifica [map] 5,128
South America [map] 5,976
South Asia [map] 3,251
Southeast Asia [map] 4,055
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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.