DescriptionFirst Received— Specify a From date to find studies submitted to ClinicalTrials.gov on or after that date. Specify a To date to find studies submitted on or before that date. Specify both From and To dates to find studies submitted 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, 2006, is entered as "03/01/2006."
The first received date is the date that summary clinical study protocol information was first submitted to the ClinicalTrials.gov registry. There may be a delay of a few days before the study information is available on ClinicalTrials.gov.