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Last Updated—Specify a From date to find studies updated on on or after that date. Specify a To date to find studies updated on or before that date. Specify both From and To dates to find studies that were updated during a certain time period. If no dates are entered, all studies will be included in your search results.
Dates should be entered in MM/DD/YYYY format. For example, March 1, 2010, is entered as "03/01/2010."
The Last Updated date is the most recent date on which changes to a study record were submitted to There may be a delay between the Last Updated date and when the updated study information is available on Also, this date may be different from the Last Verified date.