All glossary terms

Primary completion date

Meaning

The date when final data collection for the primary outcome measures is completed. It can be an estimate or an actual date. It is distinct from study completion and from public results disclosure.

In TrialRedline

Date changes show the previous value and the updated value in the trial record. A later estimate does not tell you why the date changed.

Read the original definitions

ClinicalTrials.gov glossary

ClinicalTrials.gov registration data definitions