Registration Information

ICMJE requires trial registry at or before first patient enrollment as a condition for publication.

Source: http://www.icmje.org/recommendations/browse/publishing-and-editorial-issues/clinical-trial-registration.html

The Responsible Party for an Applicable Clinical Trial must submit required clinical trial information through the Protocol Registration and Reporting System (PRS) no later than 21 days after enrollment of the first participant.

Source: https://www.clinicaltrials.gov/ct2/manage-recs/fdaaa