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48441 Studies found for: during AND before

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Map Legend
Source:https://ClinicalTrials.gov
Region Name Number of Studies
World 48,441
Africa [map] 1,809
Central America [map] 549
East Asia [map] 5,207
Japan 1,006 [studies]
Europe [map] 16,916
Middle East [map] 3,103
North America 19,981
Canada [map] 3,861 [studies]
Mexico 810 [studies]
United States [map] 17,542 [studies]
North Asia [map] 1,396
Pacifica [map] 1,439
South America [map] 2,053
South Asia [map] 826
Southeast Asia [map] 1,194
Hints:

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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.