4750 studies found for:    Open Studies | "Immune System"
4750 studies found, shown on map.
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
Region Name   Number of Studies
World 4750  
Africa   [map]   132  
Central America   [map]   75  
East Asia   [map]   477  
Japan 99   [studies]
Europe   [map]   1512  
Middle East   [map]   239  
North America 2557  
Canada   [map]   341   [studies]
Mexico 78   [studies]
United States   [map]   2373   [studies]
North Asia   [map]   115  
Pacifica   [map]   152  
South America   [map]   160  
South Asia   [map]   47  
Southeast Asia   [map]   122  

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.