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ClinicalTrials.gov
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15826 Studies found for: subjects AND Double-blind

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Map Legend
Source:https://ClinicalTrials.gov
Region Name Number of Studies
World [map] 15,826
North America 8,821
United States 8,306 [studies]
Alabama 1,799 [studies]
Alaska 55 [studies]
Arizona 2,097 [studies]
Arkansas 1,035 [studies]
California 4,523 [studies]
Colorado 1,761 [studies]
Connecticut 1,235 [studies]
Delaware 183 [studies]
District of Columbia 585 [studies]
Florida 3,947 [studies]
Georgia 2,262 [studies]
Hawaii 217 [studies]
Idaho 604 [studies]
Illinois 2,381 [studies]
Indiana 1,587 [studies]
Iowa 621 [studies]
Kansas 1,341 [studies]
Kentucky 1,367 [studies]
Louisiana 1,470 [studies]
Maine 265 [studies]
Maryland 2,003 [studies]
Massachusetts 2,097 [studies]
Michigan 1,999 [studies]
Minnesota 1,382 [studies]
Mississippi 573 [studies]
Missouri 2,056 [studies]
Montana 353 [studies]
Nebraska 986 [studies]
Nevada 934 [studies]
New Hampshire 333 [studies]
New Jersey 1,735 [studies]
New Mexico 604 [studies]
New York 3,206 [studies]
North Carolina 2,878 [studies]
North Dakota 269 [studies]
Ohio 2,903 [studies]
Oklahoma 1,347 [studies]
Oregon 1,365 [studies]
Pennsylvania 2,838 [studies]
Rhode Island 638 [studies]
South Carolina 1,829 [studies]
South Dakota 259 [studies]
Tennessee 1,976 [studies]
Texas 3,965 [studies]
Utah 1,399 [studies]
Vermont 298 [studies]
Virginia 1,881 [studies]
Washington 1,823 [studies]
West Virginia 281 [studies]
Wisconsin 1,008 [studies]
Wyoming 10 [studies]
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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.