DescriptionLast Update Posted—Specify a From date to find studies with updates available on ClinicalTrials.gov on or after that date. Specify a To date to find studies with updates available on or before that date. Specify both From and To dates to find studies with updates available 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 Update Posted date is the most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when changes were submitted to ClinicalTrials.gov by the study sponsor or investigator (last update submitted date) and the Last Update Posted date.