Timing and Completeness of Trial Results Posted at ClinicalTrials.gov and Published in Journals

The US Food and Drug Administration Amendments Act requires results from clinical trials of Food and Drug Administration-approved drugs to be posted at ClinicalTrials.gov within 1 y after trial completion. We compared the timing and completeness of results of drug trials posted at ClinicalTrials.gov and published in journals.We searched ClinicalTrials.gov on March 27, 2012, for randomized controlled trials of drugs with posted results. For a...