Working…
COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC: https://www.coronavirus.gov.

Get the latest research information from NIH: https://www.nih.gov/coronavirus.
ClinicalTrials.gov
ClinicalTrials.gov Menu
Open or close the search fields display
1445 Studies found for: subjects AND Double-blind AND Poland

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 1,445
Africa [map] 369
Central America [map] 182
East Asia [map] 598
Japan 278 [studies]
Europe [map] 1,439
Middle East [map] 503
North America 1,176
Canada [map] 760 [studies]
Mexico 416 [studies]
United States [map] 1,117 [studies]
North Asia [map] 807
Pacifica [map] 586
South America [map] 547
South Asia [map] 184
Southeast Asia [map] 278
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.