Trials that were “ongoing” as of December 26, 2007 (i.e., participants were being recruited, were being selected from a predetermined population, or were being treated or examined) require results reporting within one year of the Primary Completion Date. The Primary Completion Date is defined as the date the final subject was examined or received an intervention for the purposes of final collection of data for the primary outcome, whether the clinical trial concluded according to the pre-specified protocol or was terminated.