Registers of the results of completed trials are a more recent phenomenon, following on from ongoing trials registers that simply list details of the trial. They are of particular value because trial results are not always published, and even if published are not always published in full. Recent legislation in the US known as Section 801 of the Food and Drug Administration Amendments Act 2007 (FDAAA 801), enacted in September 2007, called for expanding ClinicalTrials.gov and adding a clinical trial results database.
Examples of trials results registers are provided in Box 6.2.j.
In addition, Clinical Trial Results is a web site that hosts slide presentations from clinical trialists reporting the results of clinical trials:
o www.clinicaltrialresults.org/